| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 820 x 915 x 940 mm | |
|---|---|---|
| Seat height | 440 mm | |
| Seat depth | 540 mm | |
| Seat width | 520 mm | |
| Backrest height | 500 mm | |
| Central back cutout dimensions | 380 x 180 mm | |
| Base height | 40 mm | |
| Tapered body lower width at base connection | 220 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
| Recommended static load capacity | 159 kg | |
|---|---|---|
| Product net weight | 42 kg | |
| Seat foam density | 40 kg/m³ | |
| Seat foam rebound rate | 55% | |
| Backrest foam thickness | 60 mm | |
| Seat cushion foam thickness | 80 mm | |
| Seam stitch pitch | 30 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 |
Core acceptance fields · Panels / hardware / frame / upholstery
| Outer upholstery | Red woven polyester fabric | |
|---|---|---|
| Seat cushion fill | High-density polyurethane foam wrapped with 20g polyester fiber | |
| Backrest fill | High-density polyurethane foam over curved inner frame | |
| Inner structural frame | 1.5 mm thick powder-coated formed steel tubing | |
| Swivel mechanism | 10 mm thick steel ball-bearing swivel plate | |
| Round base plate | 12 mm thick polished #304 stainless steel disc | |
| Upholstery edge trim | Matching fabric welting along shell 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
| Rotation function | 360-degree silent ball-bearing swivel rotation without locking position | |
|---|---|---|
| Ergonomic support | Curved integrated backrest wraps upper back for relaxed lounge posture | |
| Open back feature | Central oval cutout provides airflow and visual lightness to the sculptural form | |
| Stability design | Wide 700 mm diameter metal base prevents tipping during normal swivel use | |
| Upholstery performance | Woven fabric surface provides 50,000 double-rub abrasion resistance for commercial use | |
| Swivel base diameter | 700 mm | |
| 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
| Residential living room use | Place as standalone accent seating in modern living rooms for contemporary aesthetic appeal | |
|---|---|---|
| Commercial lobby use | Deploy in hotel lobbies, corporate reception areas for designer-focused guest seating | |
| Open office breakout space | Use in informal collaboration zones for relaxed short-term seating | |
| Retail showroom use | Position in fashion or furniture showrooms as sculptural visual anchor piece | |
| Recommended floor surface | Suitable for hard concrete, tile, wood or low-pile carpet floors with polished base | |
| Color compatibility | Red fabric finish pairs with neutral warm-toned interior palettes for visual contrast | |
| 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
| Seating strength recommendation | EN 12520:2015 Furniture, strength, durability and safety requirements for domestic seating | |
|---|---|---|
| Contract seating recommendation | EN 16139:2013 Furniture, strength, durability and safety for non-domestic seating | |
| Upholstery flammability recommendation | EN 1021:2014 Ignition resistance of upholstered furniture, smouldering cigarette test |
US and Canada office-furniture standards
| Lounge seating durability recommendation | ANSI/BIFMA X2020Standard for lounge seating, durability and stability testing |
|---|
Standards applicable to China-market projects
| Structural safety recommendation | GB/T 3324General technical requirements for wooden furniture, applicable for structural stability checks | |
|---|---|---|
| Upholstered furniture safety recommendation | GB 28007Safety requirements for upholstered furniture for children and general use, applicable for fire and structural checks | |
| Metal furniture finish recommendation | GB/T 3325General technical requirements for metal furniture, applicable for base corrosion resistance checks |
This product must meet the following technical requirements: 1. Structural safety recommendation: GB/T 3324General technical requirements for wooden furniture, applicable for structural stability checks; 2. Upholstered furniture safety recommendation: GB 28007Safety requirements for upholstered furniture for children and general use, applicable for fire and structural checks; 3. Metal furniture finish recommendation: GB/T 3325General technical requirements for metal furniture, applicable for base corrosion resistance checks; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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