Custom Extension (Tension) Spring An extension spring resists pulling force — storing energy as it stretches and returning to length when released. GL Springs manufactures custom tension springs with a wide range of hook and loop ends, engineered to your exact load, free length, and dimensional requirements.
Applications: - Levers, latches, and balance mechanisms - Return and counterbalance assemblies - Garage doors and tensioning systems - General pulling and extension applications
Why GL Springs： 20+ yrs · wide range of hook ends · custom load & length · ISO 9001 & IATF 16949 · 7-day sampling.
