Mesh is the visible part. The gas lift and the back connector are what fail.
Mesh is not one material. A cheap mesh sags within a year; a tensioned quality mesh holds its shape. Ask two questions: what the mesh is made of, and how it is fixed to the frame — stapled, or tensioned into a channel. Tensioned mesh costs more and lasts longer.
Nylon back frames flex and return; cheap PP frames crease at the connector. We use an aluminium alloy backrest connector on our training and mesh lines because that joint is where a chair fails first. Ask what the connector is made of — it is rarely mentioned and always matters.
| Part | What to specify | Why |
|---|---|---|
| Gas lift | Class 4 | Wall thickness and seal quality; Class 2 fails early under daily use |
| Mechanism | Recline with lock, or tilt tension | Determines whether the chair is comfortable for 8 hours or 1 |
| Base | Five-star nylon or aluminium | Nylon is fine; aluminium is for executive specification |
Our gas lifts are supplied with SGS test data against ANSI/BIFMA X5.1-2017 (R2022): 120,000 swivel cycles and 100,000 seat impact cycles, report SDHL250400594401FT. That covers the gas lift, not the whole chair — we say so because a buyer who asks for the certificate should get an accurate answer.
2D, 3D and 6D refer to the number of adjustment directions. Every extra axis is another part that can fail, and another cost line. For task seating, 3D is usually the right answer; 6D is an executive specification, not a durability improvement.
24 models, 23 with a published EXW price from USD 18 to USD 56, median USD 36. Loading from 314 to 628 pcs per 40HQ.
| Model | Specification | Pcs/40HQ |
|---|---|---|
| C620 | PP · Armrest | 628 |
| C610 | PP · Armrest | 628 |
| C602 | PP · Armrest | 628 |
| B605 | Mesh · High-density foam · PP | 471 |
| B602 | Mesh · High-density foam · PP | 471 |
| B601 | Mesh · High-density foam · PP | 471 |
Mesh breathes and holds its shape, which matters in hot climates and for long sitting. Fabric feels softer initially but compresses over time. For 8-hour use in a warm market, mesh is usually the better choice; for boardrooms, fabric or leather reads better.
The number is the count of adjustment directions: 2D is height and one axis, 3D adds a third, 6D adds rotation and width. More axes means more cost and more to break. For task seating 3D is usually enough; 6D is for executive specification.
Class 4 for office use. Our gas lifts carry SGS test data against ANSI/BIFMA X5.1-2017 (R2022) — 120,000 swivel cycles and 100,000 seat impact cycles, report SDHL250400594401FT.