| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 520 x 540 x 900 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
| Product net weight | 12 kg | |
|---|---|---|
| Static seat load capacity | 150 kg | |
| Recommended user weight limit | 120 kg | |
| Seat surface durability cycles | 50000 | |
| Stability overturn threshold | 15 degrees | |
| Stackable quantity | 0 | |
| 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
| Frame construction | Solid beech hardwood with reddish-brown glossy lacquer finish | |
|---|---|---|
| Seat upholstery | 0.8 mm thick black faux leather (PU) | |
| Backrest upholstery | 0.8 mm thick black faux leather (PU) | |
| Seat padding | High-density polyurethane foam, density 45 kg/m³ | |
| Backrest padding | High-density polyurethane foam, density 35 kg/m³ | |
| Stretchers | Solid hardwood cross-braces between legs | |
| Joinery hardware | Zinc-plated steel screws and dowel connectors | |
| Foot pads | 5 mm thick non-slip rubber pads | |
| 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
| Seating support | Fixed non-reclining upright backrest angled 5 degrees from vertical | |
|---|---|---|
| Armrest configuration | Armless design allows tight placement under standard conference tables | |
| Frame stability | Four-point fixed leg base with double cross-stretchers | |
| Floor protection | Integrated rubber foot glides eliminate floor scratching | |
| Upholstery maintenance | Stain-resistant faux leather surface wipes clean with mild detergent | |
| Placement compatibility | 450mm seat height aligns with 750mm standard office and conference desks | |
| 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
| Carton dimensions | 580 x 580 x 920 mm | |
|---|---|---|
| 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
| Conference room seating | Formal traditional appearance suitable for executive meeting rooms | |
|---|---|---|
| Guest reception seating | Appropriate for office reception areas and visitor waiting zones | |
| Training room seating | Armless design allows flexible arrangement in training spaces | |
| Executive office guest seating | Pairs with traditional solid wood executive desks for visitor placement | |
| 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 safety standard | EN 1335:2018 Office furniture - Office work chairs - Safety requirements | |
|---|---|---|
| Upholstered furniture fire safety | EN 1021:2014 Upholstered furniture - Ignitability by smouldering cigarette |
US and Canada office-furniture standards
| North America procurement and testing reference | Recommended references: ANSI/BIFMA X5.1 |
|---|
Standards applicable to China-market projects
| Stability and strength standard | GB/T 3324General technical requirements for wooden furniture | |
|---|---|---|
| Upholstered furniture safety | GB 28007Safety of upholstered furniture for children and adults | |
| Formaldehyde emission limit | GB 18584Formaldehyde emission limit for wooden interior decoration materials |
This product must meet the following technical requirements: 1. Stability and strength standard: GB/T 3324General technical requirements for wooden furniture; 2. Upholstered furniture safety: GB 28007Safety of upholstered furniture for children and adults; 3. Formaldehyde emission limit: GB 18584Formaldehyde emission limit for wooden interior decoration materials; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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