(1) Free length: (a) total length, (b) total loop length, (c) length from the hook loop.

(2) Control diameter: (a) outer diameter, (b) inner diameter, (c) inner diameter of the casing.

(3) Wire size "wire diameter".

(4) Material (type, grade).

(5) Number of laps: (a) the total number of laps and (b) right-hand or left-hand.

(6) The form of the end.

(7) The load in the hook.

(8) Load rate, deflection, pounds per inch.

(9) Maximum stretch length.

Extension Spring is a typical spring, that is, the representative of spring, from straight cylindrical shape to various variants, and even various shapes of hooks can be shaped according to design.

Extension Spring is the reverse application of compression spring. The scope of application is generally less than that of a specific product category, but the operation control is one level higher than that of compression spring.

Compression Spring

Each ring is wound separately. Because it can withstand pressure, the two ends can be open or closed, or flattened or flattened. The following is the necessary information for a compression spring:

(1) Controlling diameter (a) outside diameter, (b) inside diameter, (c) inside diameter of casing, (d) outside diameter of rod.

(2) Wire or bar size.

(3) Material (type and grade).

(4) Number of laps: (a) the total number of laps and (b) right-hand or left-hand.

(5) Style of ends.

(6) Load under a certain length of torsion zone.

(7) The load ratio within the range of length from one inch to several inches.

(8) "Maximum solid height" (Maximum solid height).

(9) The minimum compression height during use.

Compression spring (Compression Spring) is the first type of variant spring, from straight cylindrical shape, tapered to constricted, convex waist shape, and even various tail end variants, which can be shaped according to design.

Compression Spring (Compression Spring) is the most widely used one of all types of springs. The products are widely used in electronics, motors, computers, information, automobiles and motorcycles, bicycles, hardware tools, gifts, toys, and even the defense industry. The design and principle are easy to master, and the manufacturing control is the simplest.

Torsion Spring

The rings are either close or separated to be suitable for torsional loads (at right angles to the spring axis). The end of the spring can be wound into a hook shape or a straight torsion arm. The following is the necessary information for a torsion spring:

(1) Free length.

(2) Control diameter: (a) outer diameter, (b) inner diameter, (c) inner diameter of the casing pipe, or (d) outer diameter of the rod to pass through.

(3) Wire size "wire diameter".

(4) Material (type and grade).

(5) Number of laps: (a) the total number of laps and (b) right-hand or left-hand.

(6) Torsional force: the number of pounds deflected to a certain angle.

(7) Maximum deflection (angle from free position).

(8) The form of the end.