Description:

1. 140mm lock type- gas spring for office chairs or rocking chairs 
2. 140mm lock type- gas spring is very slowly descending by speed Control guide all the time, while the extension is the same speed as the regular-built gas spring.
3. Products Warranty: our products gas spring for office chair guarantee 5 years, It is that each gas spring will be free from defects materials and workmanship for the lifetime of the chair in which it is originally installed, if the gas spring is proper
4. gas spring for office chairs or rocking chairs  has 4 class, different class    have different tuber thickness 
5.Gas spring for office chair 100 mm chrome down 40mm tube thickness is 1.2mm, gas lift for office chair class2 tube thickness is 1.5mm ; gas cylinder for office chair class 3 tube thickness is 2.0mm , air spring for office chair class4 tube thickness is 2.5mm 

6. Sample: All the samples are free, just freight will be undertaken by your side. If you have your own size, welcome you send us your samples, we can make sample and production accordingly.
7. It is possible to stop at any height by setting at an arbitrary position.

Specifications:

TUV DIN4550 F1 Force Damper Gas Spring Struts Height Adjustable Shock Proof

Applications:

1. Office chairs
2. Chairs for the beauty parlor
3. Hospital beds ,
4. Residential beds 
5. Tool boxes (for export only),designer doors and windows ,compartmentalized cupboards.
6. Passenger seats 

Competitive Advantage:

1. Light and small in size and supports a large load 
2. It is possible to stop at any height by setting at an arbitrary position
3. Easy to store
4. F1 and Dimensions are changeable to comply with buyer’s request to gas spring for office chair 60mm black down 40mm
5. Very little noise during compression when gas spring/gas lift /gas cylinder working 
6. No shock impact by special gas system during compression all the time ,while quick extension
7. Easy to install