Custom Drawbar Springs Engineered for Heavy-Duty Industrial Applications
Coiling Technologies designs and manufactures custom drawbar springs for high-load, high-cycle applications across industries such as oil & gas, military, aerospace, construction, and transportation. Engineered for durability and tension control, our custom drawbar springs are built to perform in extreme environments where reliability is non-negotiable.
Each spring is produced to exact specifications—no off-the-shelf shortcuts. From prototype development to bulk OEM production, we specialize in extension drawbar springs built from premium materials and supported by rigorous quality standards.
What Are Drawbar Springs?
Also known as helical extension springs, drawbar springs are close-wound springs made from round wire and designed to store and exert energy through pulling force. This configuration enables the spring to handle high tensile loads while limiting overextension. As the spring stretches under load, the drawbars absorb force and prevent permanent deformation of the spring body.
These springs are commonly used in:
- Load-bearing suspension systems
- Agricultural and construction equipment
- Shock absorption systems
- Actuators and industrial linkages
- Military and aerospace mechanisms requiring controlled extension
Because of their robust design, drawbar springs are ideal for applications requiring both strength and mechanical safety in dynamic environments.
Design Specification of Drawbar Springs
Custom Engineering for Performance and Precision
Coiling Technologies is a leading U.S. manufacturer of custom drawbar springs, offering engineering-to-order solutions for clients with complex technical requirements. Our process begins with your specs—load requirements, deflection limits, spring rate, and environmental conditions—and ends with precision-wound, application-ready springs.
Key Manufacturing Capabilities:
- Spring wire diameters from 0.020” to over 1.5” (0.5 mm – 38 mm)
- Carbon steel, stainless, and exotic alloys (Inconel, Elgiloy, Hastelloy, Rene 41)
- ISO-aligned quality systems and full traceability
- Short-run, high-volume, and blanket order fulfillment
We specialize in made-to-order drawbar springs that meet your performance, tolerance, and lifecycle goals, especially for critical OEM and industrial systems.
Extension Drawbar Springs Built for High Load Conditions
In contrast to traditional extension springs, extension drawbar springs offer increased durability and safety due to their internal drawbars. These internal rods reinforce the spring and reduce stress on the coil body, enabling better resistance to shock loads and improved fatigue life.
Applications include:
- Mining and drilling rigs
- Off-road vehicle suspensions
- Press machine controls
- Mechanical clutch and brake assemblies
- High-impact structural connections
By using materials aligned with ASTM and SAE standards, we ensure each spring meets both mechanical and environmental performance criteria. Materials can be selected for corrosion resistance, high-temperature endurance, or magnetic neutrality based on the application's specific operating conditions.
Why Choose Coiling Technologies for Your Drawbar Springs?
As an experienced drawbar spring manufacturer, Coiling Technologies combines material science expertise with precision manufacturing to deliver springs you can trust in critical applications.
Our Advantages:
- Custom Solutions Only: No generic inventory; every spring is engineered for your specs.
- Heavy-Duty Capabilities: We build large-format springs for high-load and extended cycle use.
- Material Specialization: In-house knowledge of performance alloys and corrosion-resistant materials.
- Industry Focus: We work with OEMs and procurement teams in energy, defense, rail, marine, and beyond.
- Fast, Scalable Production: From small-batch testing to full-scale production runs.
Technical Collaboration with Engineers and OEMs
Our team works closely with design engineers, MRO professionals, and procurement departments to ensure the right spring is delivered for the right application. We understand the importance of dimensional accuracy, spring rate tolerances, and fatigue resistance in mission-critical operations.
If you're sourcing custom drawbar springs for new equipment or replacing legacy springs in high-demand machinery, our team is ready to assist with application reviews, material selection, and specification validation.
Request a Quote for Custom Drawbar Springs
Ready to specify custom drawbar springs for your next project? Coiling Technologies manufactures drawbar springs to match your exact needs—engineered for performance, longevity, and safety in the harshest conditions.
Draw Bar Spring FAQs
What are draw bar springs?
Known as helical extension springs, designed to store and exert energy by pulling force. Draw bar springs are made from round wire and are close wound. Draw bar springs are mainly used as high-load compression springs, primarily to maintain clamping force. Extensively utilized in CNC machine spindles.
What is the key function of a draw bar spring?
- Maintain constant preload during operation.
- Used as a release mechanism on hydraulic and pneumatic devices.
- Shock absorption systems
- Military and aerospace mechanisms requiring controlled extension
Are draw bar springs customizable?
Yes, most draw bar springs can be manufactured to meet customer requirements, specifically if the application is in need of a combination of force, extension, and compression.
Still have questions? Contact our engineering team now. We can answer any question related to draw bar springs!
