| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 550 x 580 x 840 mm | |
|---|---|---|
| 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
| Static seat load capacity | 150 kg | |
|---|---|---|
| Net weight per unit | 7 kg | |
| Maximum stack height for nesting | 10 units | |
| Foam seat density | 45 kg/m³ | |
| Mesh back tensile strength | 180 N/5cm | |
| Recommended user height range | 1850 mm | |
| 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 |
Core acceptance fields · Panels / hardware / frame / upholstery
| Backrest panel | Breathable black polyester mesh, tensioned over frame | |
|---|---|---|
| Seat cushion | 40mm thick high-resilience polyurethane foam, fabric upholstered | |
| Support frame | 1.2mm thick powder-coated black steel tubular legs and cross supports | |
| Armrest tops | Injection-molded black polypropylene, fixed to frame | |
| Folding hinge | Cold-rolled steel riveted joints, no removable fasteners | |
| Foot pads | Non-slip PVC floor protectors fitted to each leg end | |
| Backrest frame insert | Reinforced polypropylene inner support under mesh | |
| Seat base panel | 10mm thick molded plywood under foam cushion | |
| 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 |
Adjustment / rotation / tilt / mobility / storage features
| Folding mechanism | Collapsible leg frame folds flat to 120mm thickness for storage | |
|---|---|---|
| Nesting storage capability | Nested stacking for compact storage in storage rooms | |
| Fixed armrest support | Rigid non-adjustable armrests for stable upper limb rest | |
| Breathable back ventilation | Open mesh back allows continuous air flow for long sitting | |
| No-tip stability design | Splayed leg layout with 550mm total span prevents forward or side tipping | |
| Quick deployment | Unfolds to ready position in 5 seconds without tools | |
| Recline Angle / Lock Reference | 125° with 3suggested lock positions | |
| Tilt Tension User-weight Range | Reference adjustment coverage 120 kg | |
| Height Adjustment Stroke | 100 mm continuous travel | |
| 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
| Corporate conference rooms | Stackable seating for meetings, training sessions and boardroom events | |
|---|---|---|
| Training and education spaces | Lightweight movable seating for temporary classroom setups | |
| Event and temporary office use | Quick-deploy seating for pop-up workspaces, seminars and visitor areas | |
| Open office visitor zones | Guest seating near workstations for short-term meetings | |
| Waiting and reception areas | Durable seating for high-traffic public waiting zones | |
| 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
| Office chair stability recommendation | EN 16139:2013 Clause 5 non-domestic seating stability requirements | |
|---|---|---|
| Seat durability recommendation | EN 16139:2013 Clause 6 100,000 cycle seat load test | |
| Armrest load recommendation | EN 16139:2013 Clause 6.5 vertical armrest static load test |
US and Canada office-furniture standards
| Folding chair static load recommendation | ANSI/BIFMA X2017Clause 5 back static load test | |
|---|---|---|
| Chair tip resistance recommendation | ANSI/BIFMA X2017Clause 4 forward and side stability test |
Standards applicable to China-market projects
| Seat strength test recommendation | GB/T 3324Table 4 general furniture mechanical performance requirements | |
|---|---|---|
| Upholstery fabric safety recommendation | GB 18401Class B formaldehyde and pH limits | |
| Metal surface finish recommendation | GB/T 1993paint film impact resistance requirements |
This product must meet the following technical requirements: 1. Seat strength test recommendation: GB/T 3324Table 4 general furniture mechanical performance requirements; 2. Upholstery fabric safety recommendation: GB 18401Class B formaldehyde and pH limits; 3. Metal surface finish recommendation: GB/T 1993paint film impact resistance requirements; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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