| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
No corrections yet. Use the flag at the end of a row to report an issue. | ||||
Automatic mm / inch conversion · Core engineering specifications
| Finished Seat Cushion Thickness | 90 mm | |
|---|---|---|
| Backrest Padding Thickness | 70 mm | |
| Lumbar Support Zone Height | 240 mm | |
| Clear Width Between Armrests | 540 mm |
Net weight / load capacity / users / durability
| Total set net weight | 18 kg | |
|---|---|---|
| Desktop static load capacity | 80 kg | |
| Height adjustment positions | 6 | |
| Design service life | 6 years | |
| Anti-tip stability angle | 15 degrees | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% | |
| Back Foam Density Reference | 38 kg/m³ | |
| Upholstery Thickness / Abrasion Reference | 1.4 mm / 50000 cycles | |
| Five-star Base Static Load Reference | Acceptance target ≥120 kg; chair reference load 150 kg | |
| Caster Rolling Durability Reference | Acceptance target 30000 cycles |
Core acceptance fields · Panels / hardware / frame / upholstery
| Desktop panel | 18mm thick high-pressure laminate over particleboard | |
|---|---|---|
| Seat and backrest panels | 15mm thick molded laminate wood-composite | |
| Frame material | 1.2mm thick cold-rolled steel tubing | |
| Under-desk storage tray | 0.8mm thick stamped steel | |
| Adjustment hardware | Zinc-plated steel bolts and wing nuts | |
| Foot ends | Injection-molded plastic end caps | |
| Edge banding | PVC edge trim on all panel edges | |
| Seat Internal Support Board Thickness | 14 mm bent plywood or equivalent support board | |
| Backrest Internal Frame Thickness | 14 mm bent plywood/composite reinforced frame | |
| Gas-lift Engineering Specification | Recommended Class 4; outer tube 50 mm; stroke 100 mm | |
| Tilt Mechanism Plate Thickness | 2.5 mm cold-rolled steel | |
| Five-star Base Material Thickness | Metal base wall 3.5 mm; diameter 700 mm |
Adjustment / rotation / tilt / mobility / storage features
| Height adjustment mechanism | Bolt-and-hole locking system, no additional tools required | |
|---|---|---|
| Integrated chair connection | Desk and chair are attached via shared frame crossbar | |
| Floor protection | Plastic capped feet | |
| Posture support | Curved rigid backrest | |
| Stackable design compatibility | Units can be nested and stacked for storage | |
| Recline Angle / Lock Reference | 125° with 3suggested lock positions | |
| Tilt Tension User-weight Range | Reference adjustment coverage 120 kg | |
| Rotation / Mobility Configuration | 360° swivel with 5-caster multidirectional movement |
Verified carton / gross weight / assembly / loading data
| Reference Package Count | 1 set / 2 cartons | |
|---|---|---|
| Reference Assembly Time | 40 minutes per set | |
| Reference Carton Dimensions | 850× 420× 720 mm | |
| Reference Packaged Gross Weight | 23 kg/set | |
| Reference Carton Volume | 0.26 m³/set | |
| Indicative 20GP Loading | 135 sets at 85% space utilization | |
| Indicative 40HQ Loading | 320 sets at 85% space utilization |
Recommended spaces / users / usage modes
| K-12 classroom use | Single-user seating for primary and secondary school daily lessons | |
|---|---|---|
| Training room use | Fixed-position seating for corporate or institutional training sessions | |
| Tutoring center use | Durable low-maintenance seating for after-school learning programs | |
| Exam hall use | Uniform standardized seating for formal testing environments | |
| Temporary event seating | Stackable units for temporary school events or meetings | |
| Recommended Matching Desk Size | 2.4 m executive desk | |
| Reference Daily Use Duration | 8 hours/day; confirm by ergonomic testing |
EU Market Access Requirements* EN Standards
| Educational furniture safety and strength | EN 1729:2015 | |
|---|---|---|
| Educational furniture dimensions and marking | EN 1729:2012 |
Standards applicable to China-market projects
| General technical requirement for school furniture | GB/T 3976 | |
|---|---|---|
| Safety requirement for school furniture | GB 28007 | |
| Surface coating limit for harmful substances | GB 18584 |
This product must meet the following technical requirements: 1. General technical requirement for school furniture: GB/T 3976; 2. Safety requirement for school furniture: GB 28007; 3. Surface coating limit for harmful substances: GB 18584; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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