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  1. Battle of Techniques: Hot vs. Cold Winding in Spring Production

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    Springs find extensive use across various industrial applications, providing essential functions such as shock absorption, force exertion, and energy storage. Manufacturing these parts typically involves two primary choices hot vs. cold winding. These methods refer to the temperature conditions during the coiling or winding process of the spring. Knowing the differences between the two is essential in understanding how they influence the component’s performance.

    This guide delves into the intricacies of hot vs. cold winding, examining their respective advantages, disadvantages, and specific applications.

    What Is Hot Winding?

    Hot winding involves coiling the spring material under temperatures beyond its recrystallization point which is when the material’s internal structure changes. It is favored in high-stress applications like automotive, aerospace, and heavy machinery, where enhanced resilience is crucial.

    Pros of Hot Winding

    Here are the advantages of hot winding:

    • Improved ductility: Elevated temperatures during winding enhance the wire’s flexibility, making hot-wound springs more stress-resistant.
    • Enhanced resilience: Hot winding excels in reducing internal stresses within the material. This contributes to the long-term durability and performance of the spring, especially when subjected to heavy loads or frequent cycles of compression and expansion.
    • Higher productivity: Hot winding can lead to faster production cycles as the material’s malleability reduces the coiling process’s complexity.

    Cons of Hot Winding

    Despite its numerous advantages, hot winding comes with several challenges, including:

    • Complex quality control: The high temperature can lead to slight variations in spring dimensions, requiring meticulous quality control measures.
    • Limited applicability: Hot winding is unsuitable for applications requiring tight tolerances due to potential dimensional variations.
    • Higher equipment costs: Hot winding machinery can be more specialized and, consequently, more expensive than cold winding equipment.

    What Is Cold Winding?

    Cold winding processes wires at or slightly above room temperature. This technique is favored in applications where precision and tight tolerances are paramount. Therefore, it is commonly used in electronics, medical devices, and precision machinery.

    Pros of Cold Winding

    This spring manufacturing technique benefits various industries in the following ways:

    • Precise tolerances: The absence of heat during the coiling process helps prevent variations in spring dimensions. This makes it suitable for applications with strict tolerance requirements.
    • Versatile: Cold winding is versatile and can be applied to various materials, including heat-sensitive options. This expands its applicability to more industries and applications.
    • More cost-effective: Cold winding requires only a coiler, making it more cost-effective than the specialized equipment used in hot winding.

    Cons of Cold Winding

    Here are the potential drawbacks of the cold winding process:

    • Reduced ductility: Cold-wound springs exhibit lower ductility compared to their hot-wound counterparts. This impacts the component’s ability to withstand extreme stress or deformation.
    • Increased internal stresses: The absence of heat treatment can result in higher internal pressures, affecting long-term performance.
    • Material constraints: While cold winding is versatile, some materials may not be as well-suited for this process. In particular, using certain exotic alloys or materials might pose challenges due to their unique characteristics, requiring specialized knowledge and equipment.

    Hot vs. Cold Winding: Which Should You Choose?

    Choosing between hot and cold winding should be based on the specific requirements of the application, material characteristics, and economic considerations. A thorough analysis of these factors and a cost-benefit analysis will guide manufacturers and engineers in making the most suitable choice for their projects.

    Generally, hot winding is best for severe service applications that require high cycle life and consistent performance. Meanwhile, cold winding is preferred in manufacturing components that need to meet strict tolerance requirements.

    Draco Spring: Your Trusted Source for Quality Spring Components

    If you are looking for a reliable partner for your spring manufacturing needs, look no further than Draco Spring! We have been designing and manufacturing top-quality springs to meet the diverse needs of our clients for over five decades. Our state-of-the-art facilities are equipped for hot and cold coiling, working with materials from .006″ to 2.687″ diameter.

    Contact us today to discuss your project needs.

  2. Why Quality Springs Are the Backbone of Industrial Success

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    Quality springs meet high standards in terms of material, design, and manufacturing processes. They are crafted precisely to ensure durability, reliability, and consistent performance. The choice of materials such as alloy steel and adherence to stringent manufacturing tolerances usually contribute to the overall quality of these components.

    This article will determine what qualifies as a quality spring and why it is crucial for various industries.

    Quality Standards and Benchmarks for Springs Evaluation

    Here are the criteria and measures used to assess the quality of springs:

    Compliance With Industry Regulations

    Quality standards necessitate strict adherence to industry regulations and safety standards. This ensures that the manufacturing processes and end products align with established norms. It also guarantees the suitability of the springs for specific applications while prioritizing user safety.

    Consistency in Performance

    Standards emphasizing consistency in performance focus on maintaining uniform quality across batches of manufactured springs. This ensures that each component meets the same strict tolerances, providing customers with a reliable product.

    Fatigue Resistance

    Fatigue resistance standards focus on evaluating the ability of springs to withstand repeated cycles of stress without failure. Rigorous testing protocols are applied to assess how well springs retain their structural integrity over extended periods.

    Load Capacity

    Standards related to load-bearing capacity establish the maximum stress a spring can withstand without permanent deformation. Defining clear benchmarks for this ensures that the components meet specific strength requirements, making them suitable for diverse applications.

    Manufacturing Precision

    Meticulous manufacturing precision standards encompass the production process, emphasizing precise coiling and forming techniques. They are in place to maintain consistency in the dimensions and structural integrity of the springs, ultimately contributing to their reliable performance.

    Material Integrity

    Quality standards for material integrity involve carefully selecting high-grade materials to ensure that springs exhibit superior durability and optimal mechanical properties. Adherence to these benchmarks is paramount to guaranteeing the overall quality and reliability of the springs.

    Surface Finish

    Standards for surface finishes define the quality of coatings applied to springs. A corrosion-resistant and smooth surface finish is essential for protecting the springs from environmental elements, contributing to their longevity and sustained performance.

    Tolerance Control

    Tolerance control standards dictate the permissible deviations from specified dimensions. Maintaining tight tolerances prevents any variations that could adversely affect the functionality, compatibility, and overall performance of the springs.

    Significance of Investing in Quality Springs

    Investing in quality springs is crucial for many industries because it affects mechanical systems’ reliability, performance, and safety. The dependability of machinery heavily depends on the consistent functioning of springs. High-quality components are engineered to deliver predictable force and motion control, ensuring that the systems operate smoothly without unexpected disruptions.

    Moreover, the performance optimization achieved through premium springs contributes to operational efficiency. These components are designed to exceed stringent standards, providing optimal force and resilience tailored to specific applications. This minimizes the risk of downtime, which translates into cost savings and increased productivity.

    Investing in quality springs is a smart decision beyond immediate financial considerations; it represents a commitment to safety and compliance with industry standards. Premium springs undergo rigorous testing and adhere to stringent manufacturing protocols. This commitment safeguards businesses from potential legal challenges and enhances their reputation for adherence to quality standards.

    Choose Draco Spring Mfg. for High-Quality Spring Components

    At Draco Spring Mfg., we employ state-of-the-art techniques to craft each spring, surpassing established industry standards! This dedication ensures that our springs meet and consistently exceed the expectations of our clients. Our team also offers custom design and manufacturing services for various industrial applications.

    Contact us today to learn more about our products and services!

  3. Cold & Hot Coils: Unraveling the Mysteries of Industrial Spring Manufacturing

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    Click to ExpandCold & Hot Coils: Unraveling the Mysteries of Industrial Spring Manufacturing

    Cold and hot coils in industrial spring manufacturing are spiral wound structures formed from various materials such as steel or alloys. These components are the foundational building blocks for creating different types of springs across industries. The manufacturing process involves precisely winding the metal into a coiled shape, determining the spring’s characteristics and performance.

    This article will delve into cold and hot coils, exploring the processes involved in their production.

    Cold Coil Manufacturing Processes

    Cold coils are formed at or near room temperature, employing techniques like cold drawing or coiling. This method enhances the spring’s tensile strength and surface finish while maintaining dimensional accuracy. The following are the processes essential for ensuring the production of high-quality cold-coiled springs for diverse industrial uses:

    Cold Drawing

    Cold drawing reduces the diameter of a wire or rod by pulling it through a die at room temperature. The process begins with a material (wire or rod), which is then progressively drawn through a series of dies with decreasing diameters. This mechanical deformation delivers numerous benefits, including increased tensile strength and improved surface finish.


    Grinding is a precision machining technique that improves cold coil surface finish by removing defects and irregularities. This tedious process guarantees that the coils fulfill quality requirements, producing a more visually pleasing and mechanically reliable finished product. The overall effectiveness of grinding is essential in the durability and performance of cold-coiled springs in diverse industrial applications.

    Shot Peening

    Shot peening is a cold working process where small, round particles are forcefully directed at the surface of cold-coiled springs. This induces compressive stress in the material, improving fatigue resistance and overall durability. The process is especially advantageous for applications involving cyclic loading, as it helps mitigate the potential for fatigue failure over time.

    Hot Coil Manufacturing Processes

    Hot coils refer to coiled springs that are manufactured at elevated temperatures. The hot coiling process enhances the metal’s formability, creating industrial springs with specific mechanical properties. Here are the different manufacturing processes involved in this technique:

    Hot Rolling

    Hot rolling is a metalworking process where the material is subjected to high temperatures and passed through rollers. It aims to decrease the metal’s thickness before shaping it into a coil. The elevated temperatures during hot rolling make the material more malleable and enhance its formability. This enables the creation of hot-coiled springs with specific design requirements.

    Heat Treatment

    Following hot coiling, heat treatment refines the material’s microstructure and enhances mechanical properties. The process involves quenching, which rapidly cools the hot-coiled springs, followed by tempering to achieve the desired hardness, strength, and resilience. Quenching adds hardness by freezing the microstructure, while tempering reduces brittleness and optimizes toughness.

    Shot Blasting

    Shot blasting is a surface treatment method where abrasive particles are propelled at high velocity onto hot-coiled springs. This process enhances the surface finish by removing any scale or oxidation formed during the hot manufacturing processes. The result is an improved appearance of the springs and better corrosion resistance.

    Draco Spring Mfg. for High-Quality Spring Products

    At Draco Spring Mfg., we have high-quality manufacturing processes that enable us to create spring products like cold and hot coils. We also offer custom design and manufacturing services, tailoring our solutions to precisely match the individual requirements provided by our clients. This approach allows us to meet the evolving needs of various industries.

    Contact us today to learn more about our products and services!

  4. A Deep Dive Into Industrial Spring Types: Which Is Right for Your Project?

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    Industrial springs are mechanical devices used in various applications to store and release energy. They are often made of durable materials such as steel and are designed to endure heavy loads and repeated use. These components work on the elasticity principle, deforming under force and reverting to their original shape once the force is withdrawn.

    Finding the right type of spring is essential for optimizing the performance and longevity of industrial equipment. The choice usually depends on the specific project requirements, including load capacity, deflection range, and environmental conditions. Here are the most widely used industrial spring types and their respective applications:

    1. Compression Springs

    Compression springs can absorb and store energy when subjected to a compressive force. They are known for their helical coil shape and find extensive use in mechanisms where the primary load is axial compression. Their design considers factors like wire and coil diameter and the number of coils, all of which influence the spring’s behavior.

    Applications of compression springs include the following:

    • Aerospace components
    • Automotive suspension systems
    • Consumer electronics
    • Industrial machinery
    • Medical devices

    2. Constant Force Springs

    Constant force springs, or flat spiral springs, are specialized kinds designed to exert a consistent force throughout their range of motion. Unlike traditional industrial spring types that exhibit force based on compression or extension, these components provide a steady force over their entire length. They are typically created by winding a flat material strip onto a drum, creating a spiral configuration.

    Flat spiral springs are ideal in the following applications:

    • Brush springs in electrical devices
    • Cable and wire retractors
    • Measuring tapes
    • Retractable badge holders
    • Window counterbalances

    3. Gas Springs

    Gas springs, also called gas struts or gas lifts, provide controlled and adjustable support through compressed gas, usually nitrogen. They consist of a cylinder filled with pressurized gas and a piston that moves within the chamber. They are also widely used in various applications where controlled force, damping, and motion control are essential.

    Here are some specific utilizations of gas springs:

    • Aircraft seat adjustments
    • Automated machinery
    • Ergonomic chairs
    • Hospital beds
    • Lifting mechanisms

    4. Tension Springs

    Extension springs are a type of coiled spring designed to resist pulling forces or tension. They operate by absorbing energy when stretched and releasing it as they return to their original, coiled position. The primary application of these components is to provide resistance to a pulling force, making them essential in various mechanical systems.

    The following are common applications of extension springs:

    • Agricultural machinery
    • Consumer products
    • Garage doors
    • Industrial equipment
    • Trampolines

    5. Torsion Springs

    Torsion springs are helically wound springs that exert a torque or rotary force when twisted. They store and release energy as they are subjected to angular displacement. These components are employed in various applications requiring rotational force, as they provide a means to store and release energy in a controlled manner.

    Common industrial applications of torsion springs include the following:

    • Automotive suspension systems
    • Clothespin mechanisms
    • Electronic components
    • Garage door mechanisms
    • Industrial machinery parts

    6. Wave Springs

    Wave springs are coiled devices that produce a high force in a small space. Unlike traditional industrial spring types, their flat-coiled design allows for a lower operating height while maintaining similar force and deflection characteristics. This makes them ideal for situations where a significant load needs to be supported within tight dimensional constraints.

    Applications of wave springs are as follows:

    • Aerospace systems
    • Automotive components
    • Bearing preload applications
    • Electronic devices
    • Medical devices

    Partner With Draco Spring Mfg. for Reliable Spring Products

    At Draco Spring Mfg., we have state-of-the-art manufacturing processes and innovative techniques that enable us to create high-quality springs! We also understand that each project comes with unique specifications and challenges. Therefore, we offer custom design and manufacturing services, tailoring our springs to precisely match the individual requirements outlined by our clients.

    Contact us today to partner with us!

  5. The Powerhouse Behind Modern Machinery: Industrial Springs

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    Modern machinery relies on industrial springs for their efficiency in managing mechanical energy. They offer a reliable and cost-effective method of storing and releasing it as needed. These components also contribute to shock absorption and vibration control, enhancing the machinerys performance and lifespan by minimizing wear and tear.

    The versatility of the springs allows for their application in diverse industries, adapting to different load requirements. This article will explore the fundamentals of these components, including their functions and various types.

    Key Functions of Industrial Springs in Machine Systems

    Aside from energy storage and release and shock absorption, the following functions of the springs contribute to the optimal performance of modern machinery:

    Force Control and Balance

    The springs are strategically incorporated to regulate and distribute forces, ensuring that the machinery operates in a stable and controlled manner. Applying forces in opposite directions helps maintain equilibrium and prevent uneven loading on various components. This function is essential for avoiding stress concentrations and reducing the risk of mechanical failure.

    Precision and Accuracy

    Industrial springs provide consistent and predictable forces for achieving precise outcomes in manufacturing processes and automated systems. Their controlled nature ensures that the machinery operates accurately in scenarios where force application is critical. This enhances the quality of the end product and minimizes waste and inefficiencies in various industrial processes.

    Cost-Effective Solutions

    The straightforward construction of the springs (often involving common materials and manufacturing techniques) contributes to their affordability. Still, this simplicity does not compromise their effectiveness. Instead, these components efficiently fulfill their intended functions within machinery, providing a balance between cost and performance.

    Maintenance of Mechanical Systems

    When integrated into machinery, the springs act as buffers that dampen shocks and vibrations that could lead to accelerated wear and tear. Consequently, using them results in more reliable and efficient mechanical systems, as they operate with reduced stress and exhibit decreased susceptibility to failures. This aspect is particularly advantageous in industries where continuous operation and minimal downtime are critical for success.

    Versatility in Applications

    The springs adaptability to different load requirements and operating environments is a key factor that makes them indispensable in various settings. For example, they are commonly used in car suspension systems to absorb shocks and provide a smoother ride. Meanwhile, they are employed in aircraft retractable landing gears, exhibiting their adaptability to rigorous and critical functions.

    Types of Industrial Springs

    Here are the most common types of industrial springs and their respective applications:

    • Belleville springs (disc springs): These are conical-shaped and stacked to provide a high load in a small space. They are mostly used in compact and high-force applications.
    • Compression springs: These are designed to resist compressive forces. They are widely used in applications where resistance to pushing or squeezing forces is essential.
    • Constant force springs:These provide a consistent force throughout their range of motion. They are often used in mechanisms like retractable tape measures.
    • Extension springs:These resist stretching forces by storing energy when extended and releasing it when the force is relieved. Common utilizations include garage doors and trampolines.
    • Gas springs: These use compressed gas to provide a controlled linear pressure. They are frequently employed in automotive operations, like supporting hoods or tailgates.
    • Tension springs:These are similar to extension springs but often work in a straight line. They are used in systems requiring a pulling force, such as in screen doors or gates.
    • Torsion springs:These operate by twisting or torsion, resisting rotational forces. They are found in applications like door hinges, clothespins, and other mechanisms requiring rotary motion.
    • Wave springs: These flat wire or coiled springs provide a compact, lightweight solution for tight spaces. They are ideal in medical devices or electronic components.

    Choose Draco Spring Mfg. for High-Quality Spring Products

    At Draco Spring Mfg., we distinguish ourselves by harnessing cutting-edge technology to ensure that every spring meets and exceeds industry standards! We also provide custom design and manufacturing services, guaranteeing that the component precisely matches the specifications outlined by our clients. This personalized approach allows us to address the diverse requirements of various industries.

    Contact us today to learn more about our products and services!

  6. Industries Served

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    Draco Spring has been a leading custom spring, wire forms, and stamping provider for over 50 years. Our production capabilities include hot and cold coiling for materials ranging from .006″ to 2.687″ in diameter, allowing for custom and production orders. With extensive production capabilities and expertise, we serve a wide range of industries, including the following:


    Draco Spring has been designing and manufacturing suspension springs for over 15 years. We cater to all levels of racing, including NASCAR, off-road, ATVs, snowmobiles, and dirt bikes. In addition, production vehicles like the Mustang and Ford F-150 also feature our springs in their suspension.

    Mass Transit

    Large metro transit authorities and most “people movers” in large airports rely on our springs for their subway systems and transportation equipment.

    Medical Devices

    When quality matters, doctors and nurses worldwide trust Draco Spring to design and manufacture high-quality surgery tools. Additionally, we have manufactured thousands of springs used in ventilators to help seriously ill COVID patients.


    Every US military branch relies on our quality products for various applications, including tanks, ships, submarines, armored vehicles, jet aircraft, missile guidance systems, and more.


    Draco Spring’s proprietary pigtail design and manufacturing process dominate the mining industry for pigtail springs. In addition, we continue to supply springs for vibratory shakers, water blasting, earthmoving equipment, and rock crushers.


    We have partnered with NASA since the Apollo Moon Program in 1969, designing and manufacturing springs on the Apollo rocket and Moon buggy. In addition, our springs have served applications on the Space Shuttle, Hubble Telescope, and numerous satellites. Further, we continue supplying springs and wire forms to the SpaceX program

    Oil and Gas

    The oil and gas sector represents 60% of Draco Spring’s annual business, supplying springs and wire forms to all industry giants for over 50 years. Applications include downhole tools, drilling equipment, seismic equipment, and nitrogen service units.

    Pumps and Valves

    Draco Spring has supplied springs and wire forms for all types of pumps in every application since 1969. From small residential pumps to large-scale industrial pumps, we have the expertise and experience to meet the unique needs of this industry.

    Additionally, we have supplied springs with the tightest tolerances for safety, control, butterfly, gate, subsea valves, and more.

    Other Industries

    Over our more than 50 years, we have provided springs to virtually every industry, including the following:

    • Theme park rides
    • Farm equipment
    • Snow plows
    • Rail cars
    • Elevators
    • Fitness
    • Football sleds
    • Waste management
    • Nuclear power
    • Regulators/actuators
    • And many more!

    Draco Spring: The Industry Leader in Spring Manufacturing

    When precision and reliability matter, trust Draco Spring for your custom spring, wire form, and metal stamping needs! Our extensive capabilities make us the industry leader for even the most demanding research and development projects.

    We have been delivering custom and production orders for over 50 years, specializing in short-run and rush deliveries. Our unsurpassed quality and ISO 9001:2015 certification and compliance with 1010CFR50 Appendix B and NCA3800 ensure your project is in good hands.

    Contact us today to see how we can meet your unique needs.

  7. How To Get the Right Compression Springs

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    Compression springs are utilized in various applications, including vehicle suspensions and industrial machines. They compress when a force is applied and recover to their original shape when released.

    With so many compression springs available, determining the best for your needs might take some time. This article will walk you through selecting the best compression springs for your application.

    Types of Compression Springs

    Compression springs are crucial in providing resistance and support in many machines and devices, providing resistance and support. Here are the different types of compression springs and their applications:

    Helical Compression Springs

    Helical springs are the most common type of compression springs. It is made by winding a wire around a cylindrical object, such as a rod or a mandrel, and coiling it tightly.

    Conical Springs

    Conical springs are a type of helical compression spring designed with a taper. The coils of the spring are smaller at one end and gradually increase in size toward the other end. This design allows conical springs to provide more stability and support than traditional helical compression springs. As a result, they are ideal for applications requiring a constant spring rate and lower solid height.

    Barrel Springs

    Barrel or convex springs are designed with a larger diameter in the center and smaller diameters at the ends. This provides greater stability and support, making them ideal for heavy-duty applications with high loads. They are commonly used in vibrating equipment, shock absorbers, and valve actuators.

    Hourglass Springs

    Hourglass springs are designed with a smaller diameter in the center and larger diameters at the ends, offering greater flexibility. These springs are ideal for applications where a softer spring is required. They are often used in small, precision instruments and devices.

    Belleville Springs

    Belleville springs, also known as disc springs or conical spring washers, are conically shaped compression springs. They are designed to provide a high load-bearing capacity in a small space.

    Curved Disc Springs

    Curved disc springs are a type of Belleville spring designed with a curved shape. This design provides them with more support and stability than traditional Belleville springs. They are commonly used in clutches, brakes, and other applications that require high-torque transmission.

    Wave Springs

    Wave springs have a wave-like shape, allowing a higher load-bearing capacity while occupying less space. As a result, they are ideal for limited space applications, such as in the aerospace and medical industries.

    Selecting the Right Compression Springs

    Here are the key factors to consider on how to select the right compression springs for your application:

    1. Determine the Load Requirements

    The first step in selecting the right compression springs is to determine the load requirements of your application. This will help you choose the strength and size of the compression springs you need. You can calculate the load requirements by using the following formula:

    Load = (Force x Distance) / Compression

    2. Determine the Spring Rate

    The spring rate measures how much force is required to compress the spring by a certain amount. You can calculate the spring rate by using the following formula:

    Spring Rate = Load / Compression

    3. Choose the Right Material

    Some materials, such as stainless steel, are more durable and corrosion-resistant than others. Therefore, you should choose a material appropriate for the environment where the compression springs will be used.

    If the springs are used in a corrosive environment, you may need to choose a more corrosion-resistant material. However,  if the springs are used in a high-temperature environment, you must select a material that can withstand high temperatures.

    4. Consult With a Professional

    Consulting a professional is always a good idea if you are unsure which compression springs to choose. They can help you determine the load requirements, spring rate, material, and other factors to ensure that you select the right compression springs.

    5. Test and Verify

    Once you have selected the compression springs for your application, testing and verifying their performance is important. You should try the springs under the conditions they will be used to ensure they meet the load requirements and provide the necessary resistance.

    Draco Spring for High-Quality Compression Springs

    As the world’s largest custom spring manufacturer, Draco Spring can produce every type of spring to meet your needs! Whether you require production quantities or short-run rush delivery, we’ve got you covered!

    Contact us today to learn more about our compression springs and how we can help you with your spring needs.

  8. Why Draco Spring Is the Global Leader in Spring Manufacturing

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    Click to ExpandWhy-Draco-Spring-Is-the-Global-Leader-in-Spring-Manufacturing

    For over 50 years, Draco Spring has been the forerunner in consistently delivering springs to over 100 different markets worldwide. Initially, we manufactured valve and actuator springs to meet the tight tolerances required by the US Navy and nuclear equipment. Draco now provides springs with the same high production standards to markets, including NASA and aerospace, oil and gas, stock cars, and many others.

    This article will explain why Draco Spring is the global leader in spring manufacturing and why customers across industries highly regard our company.

    Extensive Portfolio of High-Quality Products and Services

    At Draco Spring, we take pride in manufacturing products that meet and exceed our customers’ expectations. We have a large selection of springs, wire forms, and metal stampings that can be used for various applications. Our services and capabilities include the following:


    Draco Spring has decades of experience in spring design and engineering. We have highly developed spring design capabilities, enabling us to successfully create products from concept to production. We also use 2D CAD software to improve design visualization and execution.

    Here are some of our engineering capabilities and products:

    • Hot coil: Draco can manufacture hot coil springs up to 2.75 inches in diameter and up to 45 ft. in length. We can also work with almost any diameter spring in a wide range of materials.
    • Cold coil: We can manufacture cold coil springs up to 1.75 in. diameter from various stainless and exotic alloys.
    • Coatings: Our coating options include paint, powder coat, Thermadep, nickel and cadmium plating, Tectyl, Sermagard, and Xylan.
    • Stocking programs: We have vast inventory space for annual blanket orders.
    • Metal forming: We produce a wide assortment of metal forms, including sway bars, eye bolts, football sled springs, elevator C springs, snap rings, wire forms, metal stampings, and spring clips.
    • Springs: We manufacture all types of springs including compression, pigtail, extension, torsion, tapered, clock, garter, volute, and leaf.
    • Other services: We offer additional services such as centerless grinding, parkerizing, Magnaflux, shot peen, liquid penetrant, and load testing.


    Draco has established itself as the industry leader in fulfilling the stringent requirements for research and development projects. Most of our manufacturing equipment and machinery are designed and built in-house, allowing us to produce springs with tighter tolerances and industry-leading quality.

    Our Enterprise Resource Planning (ERP) computer system provides accessibility, control, and monitoring for the organization’s manufacturing, inventory, workflow, and order tracking. ERP enables accurate monitoring and tracking of each order or request.

    Fully-Equipped Facility and Commitment to Quality

    Our facilities include 12 buildings covering an area of 110,000 square feet, with an ongoing additional expansion to meet rising customer requirements. We also have nine regional satellite offices dedicated to providing sales and support to all areas of the United States and the world.

    Draco Spring is dedicated to only delivering high-quality products and services. We are ISO 9001:2015 certified, and our Quality Management System has evolved due to years of collaboration with our customers. In addition, we adhere to the following specifications and standards:

    • On-site Level III inspector
    • Compliant with 10CFR50 Appendix B and NCA3800 as approved by NIAC audit
    • Audited for the supply of oil and gas and safety relief valves to the nuclear, automotive, and aerospace industries
    • Trading partner with the US military

    Dependable Global Spring Distributor for Various Sectors and Industries

    Our dependability in supplying our clients enables us to cater to the needs of different industries and sectors that utilize spring components in their operational processes. Here are some of the industries with which we have worked over the years:


    Draco Spring provides exceptional products and services to the military industry, particularly for manufacturing, repairing, and maintaining jet aircraft, tanks, ships, submarines, armored vehicles, and missile guidance.

    Oil and Gas

    We have experience creating custom-made spring components for valves, actuators, downhole tools, drilling equipment, seismic devices, and nitrogen service units in the oil and gas industry.


    Springs are used in nearly all critical medical equipment components, allowing for better and longer-lasting devices. Mainly, they are used as shock absorbers and force generators in medical instruments such as inhalers, EpiPens, bandaging devices, and monitoring systems.


    Different spring types are widely used in the automotive industry because they play critical roles in a vehicle’s suspension system. They are also applied to clutches, brakes, and transmissions.


    The mining industry uses spring parts and components in vibratory shakers, heavy equipment, water blasting, earth-moving devices, and rock crushers.


    Springs serve as the base for many parts and components, allowing aerospace devices and equipment to function as they do. These include drones, satellites, solar panels, aircraft controls, valves, and throttles.

    Other Industries and Applications

    • Theme park rides
    • Farm equipment
    • Snow plows
    • Fitness
    • Bio-fuels
    • Waste management and recycling
    • Nuclear power
    • Regulators and actuators

    Choose The Global Leader in Spring Manufacturing Now!

    Draco Spring manufactures millions of springs per year in quantities ranging from 1 to 10,000 for over 4,000 customers worldwide. We also have practical experience and a track record of exceeding the most rigorous specifications while maintaining the highest levels of quality.

    Contact us today to learn more about Draco Spring and how we can provide the best solutions for you!

  9. Draco Spring Engineering and Quality Services

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    Draco Spring originally made valve and actuator springs to conform to the exact specifications of the US Navy and nuclear equipment needs. Today, we supply springs with those same exceptional production standards to over 100 markets, including NASA and aerospace, oil and gas, stock cars, and many more.

    We specialize in short-run rush deliveries and can make almost every type of spring, wire form, and metal stamping. Our quality is unmatched in any application or setting, from extreme conditions in space to hundreds of feet below the surface in the frozen North Atlantic.

    Draco Spring has 12 buildings totaling 110,000 square feet and is located near Houston’s Hobby Airport. Additionally, we operate nine regional satellite offices that offer sales and customer assistance to all parts of the United States and the world.

    Engineering Services

    Draco has become the industry leader in meeting the most demanding requirements for research and development projects. Draco’s Engineering group offers 2D CAD design and advanced spring design capabilities. Draco offers complete product development from concept to production.

    Manufacturing Services

    Draco has designed and built the majority of the production equipment in-house. This allows the production of springs to tighter tolerances and a quality level that is unprecedented in the industry. Draco currently employs a production staff of 120 employees and maintains two shifts. The average tenure of our production employees is 17 years.

    Draco’s Enterprise Resource Planning (ERP) system provides organizational visibility, control and measurement for manufacturing, inventory, workflow and order tracking. Every order is systematically tracked through our ERP system.

    Quality Assurance

    Draco Spring is certified to ISO 9001:2015. Draco’s Quality Management System has been developed as an evolutionary process through years of collaborating with our customers. These customers are leaders in their industries and demand compliance with the most stringent requirements, specifications and standards, including:

    • ISO-9001-2015 and ISO-certified compliance since 1997
    • NIAC audit approved
    • Partner with the US military
    • Approved by audit to supply oil and gas, safety relief valves, nuclear, automobile, and aerospace.
    • On-site Level III inspector.

    Customer-Focused and Reliable Service From Draco Spring Mfg. Co.

    At Draco Spring, we consider our clients the most crucial aspect of our business, and our dedication is evident in the numerous vendor accolades we have received over the years. Whether it’s working on product development, offering a quote, adjusting for changing production demands, or communicating a project update, we strive to provide the most attentive and prompt service!

    Learn more about our products and services when you contact us today!

  10. Key Considerations When Purchasing Hot Coil Springs

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    Hot coil springs are used in environments with high loads, high temperatures, and areas exposed to corrosion. Some of the biggest consumers of hot coil springs are the transportation industry, agricultural equipment fabricators, and construction equipment manufacturers.

    Coil springs do not require maintenance. They are built with specific coatings for increased rust resistance, can last a very long time, and don’t require regular lubrication or cleaning. In addition, coils provide a wider range of suspension movement than other types of springs.

    This article will look into the characteristics of an ideal hot coil springs manufacturing partner for your fabrication requirements.

    What Are Hot Coil Springs?

    Hot coil springs are generally manufactured by heating metal and forming it into the desired shape and size. Further, some springs are tempered to satisfy specific manufacturing requirements. Compared to traditional coil springs, hot coil springs are harder to source due to their labor-intensive manufacturing process.

    What To Look For in a Hot Coil Spring Manufacturer

    Hot coil springs require longer lead times and can be expensive to produce. To ensure that you are working with a team capable of delivering high-quality custom coil springs, be on the lookout for these factors:

    Custom Spring Design Capabilities

    Design and development are critical steps in creating high-quality and durable coil springs. Thus, you must work with a manufacturing partner with CAD and design experience. Additionally, look for a company with skilled spring design engineers who can advise on every stage of your project requirements.

    High-Quality Spring Materials

    Three of the most common materials in manufacturing heavy-duty springs are stainless steel, chrome silicon, and nickel alloy. It would be best to work with a company that can provide spring prototyping to arrive at a design and material choice that best suits the needs of your project.

    Bulk Production Capabilities

    If you require bulk coil springs delivered within a specific time frame, you must check the capacity and delivery commitments of your potential coil spring manufacturer. These considerations are typically discussed during the consultation sessions and when submitting project quotes.

    Standard Manufacturing Practices

    The most recent revision of ASTM-125 is the recognized standard for spring manufacturing and tolerances. In addition to definitions and inspection procedures, this specification addresses squareness, maximum solid height, free height, and tolerance on the outside diameter. To ensure high-quality components and customer service, work only with a coil manufacturer that complies with these standards.

    Superb Industry Experience and Customer Commitment With Draco Spring Mfg. Co.

    Draco Spring Mfg. Co. is the leading hot coil spring manufacturer in the world, located in Houston, Texas. We are a reliable trading partner with the U.S. Military, and we supply to the nuclear, oil and gas, automotive, and aerospace industries.

    Moreover, Draco Spring has been certified to ISO 9001:2015 since 1997 and approved by N.I.A.C audit in compliance with 1010CFR50 Appendix B and NCA3800.

    Contact us today for your high-quality and industry-leading hot coil manufacturing needs!