This professional custom tension spring, also known as a spiral tension spring, is designed to provide reliable pulling force and elasticity for a wide range of applications. Commonly used in defense, marine, electronics, automotive, and industrial systems,
it ensures consistent performance, durability, and precision in demanding environments. Fully customizable in size, material, and design, these springs can be tailored to meet specific operational requirements.

These OEM factory-customized extension and compression springs are versatile components designed for a wide range of applications, including appliances, automotive, marine, toys, tools, and mechanical devices. Made from durable tempered spring steel, they provide reliable retraction and consistent performance under repeated stretching and compression. Featuring single-loop closed ends for secure attachment, corrosion-resistant nickel plating, and precise dimensions, these springs are built for both indoor and outdoor use. Fully customizable in size, load, and deflection, they deliver durable, high-quality performance tailored to specific operational requirements.

These double hook wire coil extension (tension) springs are precision engineered to provide reliable pulling force and elasticity for a wide range of applications, including automotive mechanisms, garage doors, trampolines, washing machines, tools, and industrial equipment. Made from high-quality materials such as SS301, SS302, SS304, SS316, 65Mn, 60Si2Mn, 55CrSiA, music wire, and specialty alloys, they offer excellent strength, durability, and long service life. With customizable wire diameters (0.1–20 mm), inner and outer diameters, coil counts, free lengths, and active coils, these springs can be tailored to specific requirements. Available with U-shaped or round end hooks and a variety of finishes— including zinc, nickel, anodic oxidation, black oxide, gold, silver, powder coating, and more—they deliver both performance and corrosion resistance for demanding applications.