| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 940 x 840 x 800 mm | |
|---|---|---|
| Seat height | 483 mm | |
| Seat depth (leg rest included) | 737 mm | |
| Seat width | 660 mm | |
| Backrest height (from seat surface) | 533 mm | |
| Winged headrest width | 520 mm | |
| Central support post height | 220 mm | |
| 4-star base diagonal span | 720 mm | |
| Floor clearance under seat shell | 100 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
| Net product weight | 36 kg | |
|---|---|---|
| Maximum static load capacity | 159 kg | |
| Swivel rotation range | 360 degrees | |
| Seat foam density | 45 kg/m³ | |
| Back foam thickness at lumbar zone | 100 mm | |
| Seat foam thickness at thigh support | 120 mm | |
| Foam rebound rate | 60% | |
| Upholstery abrasion resistance (Martindale) | 50000 cycles | |
| Base static load rating | 227 kg | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% |
Core acceptance fields · Panels / hardware / frame / upholstery
| Inner support frame | 1.5mm thick powder-coated steel tubing | |
|---|---|---|
| Seat and back padding | Molded high-density polyurethane foam over S-shaped spring support | |
| Upholstery | Dark textured woven polyester performance fabric | |
| Swivel mechanism | Steel ball-bearing 360-degree rotation unit | |
| Central support post | 50mm diameter black powder-coated solid steel column | |
| 4-star base legs | 3mm thick black powder-coated flat steel cross arms | |
| Base floor contact pads | Non-slip 5mm thick rubber end caps on each leg tip | |
| Stitching construction | Precision hidden edge stitching with 8mm seam pitch | |
| Frame anti-corrosion treatment | Electrophoretic rust-preventive coating under powder finish | |
| 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 |
Adjustment / rotation / tilt / mobility / storage features
| Swivel function | Smooth 360-degree full rotation with no return tension | |
|---|---|---|
| Seating posture support | Fixed ergonomic raked recline with integrated lumbar, headrest and leg support | |
| Floor protection | Rubber anti-slip pads on each base leg end prevent hard floor scratches | |
| No height adjustment | Fixed seat height with no gas lift or elevation mechanism | |
| No active recline adjustment | Permanent fixed lounge angle with no tilt or lock mechanisms | |
| Armless access | No protruding armrests for unobstructed side entry and flexible seating positions | |
| Stability design | Wide 4-point cross base prevents tipping during normal swivel and lounging use | |
| Fixed seat recline angle from horizontal | 22 degrees | |
| 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
| Modern residential living rooms | Sleek armless swivel form fits minimalist, contemporary and loft interior design schemes | |
|---|---|---|
| Commercial lounge areas | Durable upholstery and stable base suitable for office breakout zones and hotel lobbies | |
| Open-plan penthouse and reception spaces | Low-profile sculptural form complements large glazing and polished hard flooring | |
| Reading and relaxation corners | Fixed reclined posture and integrated head/leg support supports extended casual seating | |
| Contract hospitality projects | Swivel function and compact footprint work for boutique hotel guest rooms and club lounges | |
| 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 | Applicable for strength, durability and safety requirements for non-domestic seating | |
|---|---|---|
| EN 1021-1:2014 | Applicable for upholstered furniture ignitability resistance to smouldering cigarette sources | |
| EN 1021-2:2014 | Applicable for upholstered furniture ignitability resistance to match flame sources |
US and Canada office-furniture standards
| ANSI/BIFMA X5.4-2021 | Applicable for safety and performance requirements for lounge and public seating | |
|---|---|---|
| ANSI/BIFMA X5.1-2017 | Applicable as reference for general seating structural stability and load testing |
Standards applicable to China-market projects
| GB/T 3324-2017 | Applicable for general technical requirements of wooden and upholstered metal furniture for indoor use | |
|---|---|---|
| GB 18584-2001 | Applicable for limit of harmful substances in indoor wooden and upholstered furniture materials | |
| GB/T 10357.3-2013 | Applicable for mechanical property test methods for seating furniture strength and durability |
This product must meet the following technical requirements: 1. GB/T 3324-2017: Applicable for general technical requirements of wooden and upholstered metal furniture for indoor use; 2. GB 18584-2001: Applicable for limit of harmful substances in indoor wooden and upholstered furniture materials; 3. GB/T 10357.3-2013: Applicable for mechanical property test methods for seating furniture strength and durability; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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