1、 Customized compression spring (parameters to be provided)
(1) Free length;
(2) Control diameter: (a) outer diameter, (b) inner diameter, (c) inner diameter of the casing, or (d) outer diameter of the round rod;
(3) Steel wire size "wire diameter";
(4) Materials (type and grade);
(5) Number of turns: (a) total number of turns and (b) right-handed or left-handed;
(6) Surface treatment method;
(7) Whether both ends of the spring need to be polished.
2、 Customized tension spring (parameters to be provided)
(1) Free length;
(2) Control diameter: (a) outer diameter, (b) inner diameter, (c) inner diameter of the casing, or (d) outer diameter of the round rod;
(3) Steel wire size "wire diameter";
(4) Materials (type and grade);
(5) Number of turns: (a) total number of turns and (b) right-handed or left-handed;
(6) Surface treatment method;
(7) What shape and position are the pull hooks at both ends of the spring (side hook and middle hook).
3、 Customized torsion spring (parameters to be provided)
(1) Free length;
(2) Control diameter: (a) outer diameter, (b) inner diameter, (c) inner diameter of the casing, or (d) outer diameter of the round rod;
(3) Steel wire size "wire diameter";
(4) Materials (type and grade);
(5) Number of turns: (a) total number of turns and (b) right-handed or left-handed;
(6) Torsion force: pounds deflected to a certain angle;
(7) Large deflection (angle from free position);
(8) End form.
