Extension Spring
Extension Springs Engineered for Tension, Flexibility, and Precision
Extension springs are critical mechanical components designed to absorb and store energy by resisting pulling forces. As tension is applied, these springs extend to provide the exact counterforce required then returns to their original shape when the load is released. Known for their reliability, durability, and performance under stress, extension springs play vital roles in a broad range of industries and applications.
These springs serve essential functions in mechanical systems:
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Returning mechanisms to a set position
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Maintaining controlled tension in assemblies
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Absorbing dynamic energy through extension
From compact medical equipment and precision instruments to demanding aerospace and industrial systems, Tollman Spring’s extension springs are custom-engineered to meet tight tolerances and deliver dependable results in even the most challenging environments.
Extension Spring Capabilities
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Hook, loop, and custom end configurations
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Standard and high-performance materials including stainless, music wire, and specialty alloys
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Pre-load and initial tension options for consistent force delivery
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Secondary operations: loop forming, stress relieving, plating, coating, and labeling
Use Cases
Extension springs are ideal for applications requiring resistance to tensile forces and a smooth return to position after extension. Whether micro-sized for surgical tools or robust for heavy-duty machinery, Tollman Spring designs extension springs to meet your unique specifications.
Automotive & Electric Vehicles
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Door Hinge Mechanisms
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Seatbelt Clips, Storage Compartment Latches & Clips
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Pedal return mechanisms
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Charging port covers
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Suspension systems
Medical & Life Sciences
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Handheld surgical and diagnostic tools
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Retractable components in medical devices
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Rehabilitation equipment and braces
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Wearable tension-driven systems
Aerospace & Defense
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Cargo bay and access panel mechanisms
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UAV launch and retrieval systems
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Missile deployment and guidance systems
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Avionics tension management
Industrial & Automation
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Counterbalancing arms and tool returns
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Conveyor and actuator systems
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Access doors and equipment panels
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Mechanical linkages and cable tensioners
Electronics & Electrical
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Retractable cable mechanisms
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Battery and component retention
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Switchgear and connector positioning
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Sensor and actuator return systems
Laboratory & Instrumentation
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Analytical device mechanisms
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Sampling system returns
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Miniature mechanical testing setups
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Tension-controlled closures and hatches
Built to Perform. Designed to Endure.
At Tollman Spring, we combine expert engineering with high-precision manufacturing to produce extension springs that meet the functional, environmental, and lifecycle requirements of your application. With decades of experience across demanding industries, we deliver spring solutions that work reliably—every time.
We're Ready. Let's Talk.
From sales and customer service to our team of experienced engineers, we offer the expertise needed throughout each step of your project. Tollman Spring is dedicated to finding solutions to your questions and challenges in an efficient manner. We produce a massively diverse range of springs, wire forms, and fourslide stampings designed for all purposes. Simply inquire below to learn more and let us work to find the right solution for your production needs. One of our team members will be in touch shortly.
91 Enterprise Dr, Bristol, CT 06010
860-583-1326
