Delivery Time:15 days
Certification:ISO 9001:2008 TS 16949,ROHS

Alloy Steel Industrial Compression Springs 12MM Dacroment Coated For Storage Battery

Specifications:

Material	Alloy steel 55CrSi
Wire diameter	12mm
Outside diameter	64mm
Free length	110mm
Total coils	6
Active coils	4
Direction	Right
End type	Close and ground
Spring rate	361N/mm
Hardness	HRC 48-52
Surface treatment	dacromet
Usage	Industry storage battery

Description:

1, Adopt alloy steel 55CrSi to make sure high quality,providing stable force and long life.

2, with surface treatment dacromet,this compression spring can pass at least 800H in salt spray test and keep industry storage battery safe in corrosion environment.

3, adding the process of pre-pressing for twice,it will reduce probability of compression spring’s shorten.

4, adopt double ends CNC spring grinding machine to grind compression spring’s two ends,can guarantee precision of spring,such as verticality and smoothness of two ends.

5, hot treatment 440 ℃ and 40 minutes give release stress effectively which come from the process of rolling.

6, the process of peen shooting not only release stress also can extend life of compression spring.

7, to guarantee spring’s quality,there are three inspections before shipment,first inspection before mass production,spot check during production and final inspection before shipping.

8, full inspection will be chosen if need,for this industry storage battery spring,we inspected every one.

9. long life,more than 1000000 circles,max working length 30mm.

Applications:

this compression spring used in electronic industry,outside the huge solar energy storage battery to hold container in which is full of chemical this spring have to own the character as follow:

long life which require 1000000 circles.

Corrosion protection:the dacromet surface treatment can guarantee over 800H during salt spray test.

Competitive Advantage:

High quality

Reasonable price

Quick delivery