Anji Cazen Hardware Factory Limited is one of the leading manufacturers and suppliers of chair gas lift in China. With abundant experience, we warmly welcome you to buy durable chair gas lift at competitive price from our factory. If you have any enquiry about cooperation, please feel free to email us.
Office Chair Gas Lift D-120 Chrome - 120mm Stroke, Class 1-4, BIFMA Tested
Cazen is a direct gas lift factory in Anji, China's Chair Capital - not a trading company. We manufacture chrome pneumatic chair cylinders (Model D-120, 120mm stroke) in Class 1 through Class 4, with in-house tube drawing, chrome plating, and nitrogen filling. MOQ 500pcs, free samples available, technical response within 24 hours.
What Makes a Reliable Chair Gas Lift?
A gas lift (pneumatic cylinder) is the single highest-failure component in an office chair. Cazen's D-120 model uses a precision-drawn steel outer tube with hard-chrome plating , a nitrogen-filled chamber with premium seals, and a hardened piston rod - engineered to prevent slow sinking, oil leakage, and sudden drops under daily commercial use.
Key engineering features:
- Nitrogen gas fill - not compressed air, ensuring consistent lift force over 100,000+ cycles.
- Multi-layer chrome plating - corrosion-resistant, smooth operation inside chair mechanism socket.
- Class-rated piston diameter - Class 1 (Ø22mm) to Class 4 (Ø28mm hardened steel), matching your chair's weight rating.
- Universal 50mm outer diameter - fits standard 50mm chair base sockets without adapter.
💡 Not sure which Class to specify? Tell us your target user weight and daily shift hours - our technical team recommends the right rating within 24 hours.
Product Specifications - D-120 Chrome Gas Lift
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Detailed Product Information |
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Item No: |
D-120 CHROME |
Material: |
STEEL TUBE |
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Brand Name: |
CAZEN |
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Available Size: |
D= 120MM or other sizes |
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Available Class: |
Class 1, Class 2,Class 3, Class 4 |
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Color: |
Chromed |
HS CODE: |
9401909090 |
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Packing way: |
Plastic bags+Carton Packing 20PCS/CTN |
Place of Origin: |
CHINA |
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Pass BIFMA Testing or not: |
Yes |
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Net Weight: |
0.85KGS |
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Loading Ability(1*20FT): |
26000PCS |
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Payment Term: |
T/T Or L/C at sight |
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Class 1 vs Class 3 vs Class 4 - Which to Specify?
Gas lift class determines piston rod diameter and maximum dynamic load capacity. Choosing the right class prevents warranty claims and ensures user safety:
| Class | Piston Ø | Max Dynamic Load | Typical Application |
|---|---|---|---|
| Class 1 | Ø22mm | ~75 kg | Light task chairs, home office |
| Class 2 | Ø25mm | ~100 kg | Standard office chairs |
| Class 3 | Ø28mm | ~113 kg | Ergonomic & 24/7 shift chairs |
| Class 4 | Ø28mm hardened | ~150–180 kg | Heavy-duty, executive, gaming chairs |
* Load ratings are reference values. Actual capacity depends on chair base and mechanism. Confirm with our engineering team for your specific model.
Frequently Asked Questions
Q: Can you provide BIFMA test report for the D-120 gas lift?
A: Yes. Our D-120 model has passed BIFMA X5.1 cycle testing. Test report No. AJHL251200754601FT is available upon request. We can also arrange third-party re-testing at buyer's cost if required.
Q: What is the stroke length and outer diameter of this gas lift?
A: Stroke is 120mm, outer diameter is Ø50mm - the standard size that fits most office chair bases with a 50mm socket. Custom stroke lengths are available for OEM orders.
Q: What is your MOQ for custom chrome gas lifts?
A: Standard D-120 MOQ is 500pcs. For custom stroke, logo printing, or special plating, MOQ may vary - contact us with your spec for a quote.
Q: Do you support OEM gas lift with our brand printing?
A: Yes. We can print your logo on the outer chrome tube and provide custom carton packaging for repeat-volume orders. Send us your artwork and we'll confirm feasibility.
Q: What is the lead time for a full container of Class 4 gas lifts?
A: 15–25 days after deposit confirmation for standard Class 4 chrome. Custom logo or non-standard stroke may add 5–7 days. We'll confirm exact timing at quotation.
Q: How do I know if this gas lift fits my chair base?
A: The D-120 has a universal Ø50mm outer diameter, compatible with 99% of standard office chair bases. If unsure, send us a photo of your chair base socket or the old gas lift - we confirm fitment within 24 hours.
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Ready to Source Gas Lifts for Your Chair Production?
Send us your chair base photo or existing gas lift sample - our technical team confirms fitment, pricing, and lead time within 24 hours. Trial samples and full container orders both welcome.
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