| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 740 x 790 x 830 mm | |
|---|---|---|
| Seat height | 460 mm | |
| Seat depth | 550 mm | |
| Seat width | 680 mm | |
| Backrest height above seat | 540 mm | |
| Outer shell fluted panel height | 370 mm | |
| Gold base ring height | 40 mm | |
| Floor to top of armrest transition | 610 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 weight capacity | 159 kg | |
|---|---|---|
| Net product weight | 18 kg | |
| Seat cushion foam density | 40 kg/m³ | |
| Backrest foam density | 32 kg/m³ | |
| Cushion foam rebound rate | 45% | |
| Seam stitch pitch | 8 stitches per inch | |
| Swivel rotation range | 360 degrees | |
| Recommended user weight limit | 136 kg | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% | |
| Back Foam Density Reference | 38 kg/m³ |
Core acceptance fields · Panels / hardware / frame / upholstery
| Seat and inner back upholstery | Dark brown velvet fabric, 0.9mm face thickness, 30,000 double-rub abrasion resistance | |
|---|---|---|
| Outer shell upholstery | White vertical fluted/channeled woven fabric, stain-resistant treated surface | |
| Inner frame | 18mm thick engineered hardwood plywood, kiln-dried, joint-reinforced | |
| Seat cushion fill | 40kg/m³ high-density polyurethane foam wrapped with 20mm Dacron layer | |
| Backrest fill | 32kg/m³ medium-density polyurethane foam with contoured shaping | |
| Swivel base ring | 1.5mm thick polished gold-tone 201 stainless steel, mirror finish | |
| Swivel mechanism | 3mm thick steel plate rotation bearing with nylon glide surfaces | |
| Floor protection pads | 5mm thick non-slip felt pads affixed to base underside | |
| 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
| Swivel operation | Smooth 360-degree full rotation around central vertical axis, no tilt or recline function | |
|---|---|---|
| Ergonomic support | Curved barrel wrap design provides continuous lateral back and side support without separate protruding arms | |
| Stability design | Wide circular metal plinth base distributes weight evenly to prevent tipping during rotation | |
| Surface maintenance | Velvet and fluted fabric surfaces can be spot-cleaned with mild upholstery cleaner and soft cloth | |
| Assembly requirement | Minimal assembly required, attaching base to chair body with included hardware | |
| Floor protection | Integrated felt glides eliminate metal contact with floor surfaces, suitable for tile, wood and polished concrete | |
| Upholstery transition | Curved seam between dark seat and white outer shell creates sculptural two-tone visual effect | |
| Gold swivel base diameter | 690 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 | Used as standalone accent seating flanking a coffee table or side table for guest seating | |
|---|---|---|
| Luxury lobby/reception area | Deployed in pairs or small groups for upscale hotel, office or sales gallery waiting areas | |
| Bedroom dressing area | Placed as a comfortable vanity or reading chair adjacent to case goods | |
| Lounge break-out space | Used in modern office informal collaboration zones for relaxed short-term seating | |
| High-end retail waiting area | Suitable for boutique store customer seating that complements premium interior finishes | |
| 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 12520:2015 | Domestic furniture seating strength, durability and safety requirements | |
|---|---|---|
| EN 1021-1:2014 | Upholstered furniture ignitability test for smouldering cigarette source |
US and Canada office-furniture standards
| North America procurement and testing reference | Recommended references: ANSI/BIFMA X5.4 |
|---|
Standards applicable to China-market projects
| GB/T 3324-2017 | General technical requirements for wooden furniture, applicable to frame structural integrity | |
|---|---|---|
| GB 18584-2001 | Limit of harmful substances in wooden furniture, applicable for formaldehyde emission control | |
| GB/T 19823-2008 | Upholstered furniture durability test methods, applicable for seating fatigue performance |
This product must meet the following technical requirements: 1. GB/T 3324-2017: General technical requirements for wooden furniture, applicable to frame structural integrity; 2. GB 18584-2001: Limit of harmful substances in wooden furniture, applicable for formaldehyde emission control; 3. GB/T 19823-2008: Upholstered furniture durability test methods, applicable for seating fatigue performance; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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