Product Description

Heavy-Duty Class 4 Office Chair Cylinder
Upgrade your office chair with this premium Class 4 hydraulic gas cylinder, built from thick, high-quality steel. Certified by SGS & BIFMA, it has passed over 100,000 rotation, push, pull, and impact tests, supporting up to 1000 lbs safely and reliably.

Adjustable Height – 5.5 Inches
The gas cylinder offers an adjustable range of 5.5 inches, expanding to 16.9 inches and compressing to 11.4 inches, allowing optimal ergonomic positioning for different users.

Universal Fit for Most Chairs
Designed to fit a wide range of chairs including office chairs, executive chairs, salon chairs, rolling stools, and work chairs. Outer diameter: 50 mm (2 in), inner diameter: 28 mm (1.1 in).

Smooth and Silent Operation
Equipped with advanced pneumatic design, this cylinder rotates 360° smoothly and silently, providing noise-free operation whether sitting, turning, or reclining.

Safe and Explosion-Proof
The gas lift is built with the most advanced Class 4 piston, featuring a decompression zone and reinforced shell for maximum safety and durability.

Easy Installation
One-time forming circlip ensures secure installation. Fits most standard office chairs, making replacement simple and quick.

Thick, Durable Construction
Made from premium stainless steel, the cylinder offers long-lasting performance with superior load-bearing capacity and corrosion resistance.

Package Includes:

Q1: What is the weight capacity of this gas cylinder?
A1: It can support up to 1000 lbs safely.

Q2: Will this cylinder fit my chair?
A2: It fits most office chairs, executive chairs, salon chairs, and rolling stools. Check the outer diameter (50 mm) and inner diameter (28 mm).

Q3: How much height adjustment does it provide?
A3: Adjustable height range is 5.5 inches (16.9 in expanded, 11.4 in compressed).

Q4: Is installation difficult?
A4: No, it includes a simple one-time forming circlip for easy installation.

Q5: Does it make noise during operation?
A5: No, it provides smooth and silent 360° rotation.

Q6: Is it explosion-proof?
A6: Yes, it’s a Class 4 piston with decompression design for safe operation.

Q7: What material is it made of?
A7: Made from thick high-quality stainless steel for durability and load-bearing capacity.

Q8: Can it replace any chair cylinder?
A8: It fits most standard chairs but may not be compatible with all models.

Q9: How durable is this cylinder?
A9: Certified Class 4, tested over 100,000 rotations/push/pull cycles.

Q10: Does it allow smooth reclining and turning?
A10: Yes, the advanced pneumatic design ensures effortless chair rotation and reclining.