| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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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
| Seating capacity | 10 users | |
|---|---|---|
| Total set weight | 280 kg | |
| Single seat static load capacity | 150 kg | |
| Upholstery abrasion resistance | 50000 double rubs | |
| Foam density (seat cushion) | 40 kg/m³ | |
| 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
| Seat internal frame | Solid pine wood frame, 30mm thick members | |
|---|---|---|
| Seat cushion padding | High-resilience polyurethane foam, 120mm thick, 40kg/m³ density | |
| Backrest padding | Medium-density polyurethane foam, 80mm thick, 30kg/m³ density | |
| Upholstery fabric | Polyester woven fabric, 0.8mm thick, stain-resistant finish | |
| Center table top | 18mm thick MDF with matte white thermofoil laminate | |
| Center table base | Powder-coated steel column base, 100mm diameter | |
| Module connecting hardware | Heavy-duty steel connection brackets | |
| Throw pillow covers | Matching polyester fabric with hidden zipper closure | |
| 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
| Modular configuration | Interlocking wedge-shaped units that can be re-arranged into curved or circular layouts | |
|---|---|---|
| Seating access gap | 600mm wide open entry gap on one side of the outer ring | |
| Two-tier seating arrangement | Dual concentric curved seating rings with inner ring oriented to face outward and outer ring oriented to face inward | |
| Backrest support | Continuous upholstered backrest along all seating positions to provide upright back support | |
| Module connection | Sliding steel bracket connectors between adjacent units to prevent shifting during use | |
| 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
| Largest carton dimensions | 900 x 700 x 500 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
| 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
| EN 16139:2013 | Strength, durability and safety requirements for non-domestic seating, applicable for commercial public space use | |
|---|---|---|
| EN 13722:2004 | Test methods for assessment of upholstery furniture static load and fatigue performance |
US and Canada office-furniture standards
| ANSI/BIFMA X5.4-2020 | Standard for lounge seating, specifying durability and load testing requirements for public areas |
|---|
Standards applicable to China-market projects
| GB/T 3324-2017 | General technical requirements for wooden furniture, applicable to internal frame and table components | |
|---|---|---|
| GB 20400-2006 | Limit of harmful substances in leather and fabric upholstery furniture, applicable for procurement acceptance |
This product must meet the following technical requirements: 1. GB/T 3324-2017: General technical requirements for wooden furniture, applicable to internal frame and table components; 2. GB 20400-2006: Limit of harmful substances in leather and fabric upholstery furniture, applicable for procurement acceptance; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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