We offer the following specifications:
Heat treatment: per requirement (inert gas atmosphere, vacuum, air)
Plating process: see copper, nickel, tin, silver, gold
Wire sizes: from 0.10mm (0.004") to 2.60mm (0.1")
Standards: JIS, DIN, ASTM, AMS, SAE, BS, EN
Materials:
Hard drawn wire (SWC)
Music wire (SWPB)
Stainless steel (SUS 302 /301/304)
Beryllium copper
Phosphor bronze
Chrome silicon
Chrome vanadium
Extension springs come in various types and configurations to suit different applications. Here are some common types of extension springs based on their designs and hook configurations:
Full Loop Springs: These extension springs feature full loops at both ends, providing a secure attachment point for connecting hardware or mounting.
Half Loop Springs: Half loop extension springs have one full loop at one end and a half loop (also known as a hook) at the other end. The hook end allows for easy attachment and adjustment.
Double Looped Springs: Double loop extension springs have loops at both ends, but one end features two smaller loops instead of one large loop. This design offers increased flexibility in attachment options.
Extended Hooks: Extension springs with extended hooks have elongated hook ends, providing additional surface area for secure attachment or easier handling during installation.
Side Hooks: Some extension springs feature hooks oriented perpendicular to the axis of the spring rather than parallel. These side hooks offer alternative attachment options and may be beneficial in space-constrained applications.
Threaded Hooks: Threaded extension springs have hooks with threaded ends, allowing for easy attachment to threaded rods, bolts, or other hardware without the need for additional fasteners.
Eye Hooks: Eye hooks feature a rounded or oval-shaped loop at the end of the spring, providing a secure attachment point for connecting hardware or mounting.
Tapered Hooks: Tapered extension springs have hooks that gradually taper in thickness from the body of the spring to the hook end. This design helps to distribute stress more evenly and reduce the risk of breakage at the hook attachment point.
Rectangular Hooks: Some extension springs feature rectangular-shaped hooks instead of the traditional round or oval-shaped hooks. Rectangular hooks may offer increased strength and stability in certain applications.
Custom Hook Configurations: Extension springs can also be customized with unique hook configurations to meet specific application requirements, such as special bends, angles, or shapes tailored to fit specific mounting or attachment points.
Each type of extension spring and hook configuration offers unique benefits and is selected based on factors such as load requirements, space limitations, attachment methods, and environmental conditions.