| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 762 x 770 x 991 mm | |
|---|---|---|
| Seat height | 460 mm | |
| Seat width | 505 mm | |
| Seat depth | 498 mm | |
| Backrest height above seat | 531 mm | |
| Armrest height above seat | 210 mm | |
| Seat cushion thickness | 79 mm | |
| Leg height | 280 mm | |
| Brass ferrule height | 25 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 weight per chair | 27 kg | |
|---|---|---|
| Static weight capacity | 120 kg | |
| Cushion foam density | 24 kg/m³ | |
| Cushion foam rebound rate | 55% | |
| Upholstery abrasion resistance | 30000 Martindale cycles | |
| Seam stitch pitch | 8 stitches per 30mm | |
| 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
| Inner load-bearing frame | Solid hardwood and 18mm plywood with reinforced corner blocking | |
|---|---|---|
| Outer arm/back panel upholstery | Woven polyester fabric with matte black finish, 0.8mm thickness | |
| Seat and center back upholstery | Woven polyester fabric in accent color options (orange/lavender shown) | |
| Seat cushion core | High-resilience polyurethane foam wrapped in 20mm Dacron batting | |
| Backrest cushion core | Medium-density polyurethane foam for lumbar support | |
| Support legs | Solid rubberwood with ebonized matte black finish, 38mm diameter at top | |
| Leg ferrules | Polished brass metal caps with felt floor-protection pads at base | |
| Joinery hardware | Zinc-plated steel bolts and dowel joinery for leg-to-frame connection | |
| 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 function | Fixed non-reclining, non-swivel upright lounge seating for single adult occupant | |
|---|---|---|
| Assembly requirement | Knock-down leg installation with included Allen key, no specialized tools needed | |
| Arm support function | Integrated curved enveloping armrests extending from back to front seat edge for full side support | |
| Floor protection | Felt pads under brass ferrules prevent scratching hard floor surfaces | |
| Color option support | Multiple accent fabric colorways available (orange, lavender shown) with standard black outer panels | |
| Cleaning requirement | Spot-clean upholstery with mild fabric detergent, no machine washing recommended | |
| 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
| Gross weight per packaged chair | 30 kg | |
|---|---|---|
| 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 as standalone accent seating next to sofas or side tables for guest seating | |
|---|---|---|
| Office reception area | Deploy in pairs or small clusters in waiting areas for visitor seating | |
| Hotel lounge space | Place in guest room corners or public lobby seating areas for casual relaxation | |
| Bedroom vanity seating | Position at dressing tables for upright, comfortable seated grooming use | |
| Cafe breakout zone | Use in casual cafe or co-working breakout areas for short-duration visitor seating | |
| 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 | EN 12520:2015 Furniture strength, durability and safety for domestic seating | |
|---|---|---|
| Upholstery flammability | EN 1021:2014 Ignition resistance of upholstered furniture smouldering cigarette | |
| Surface stability | EN 15372:2008 Furniture surface resistance to cold liquids |
Standards applicable to China-market projects
| Structural safety | GB/T 3324General technical requirements for wooden furniture | |
|---|---|---|
| Upholstery durability | GB/T 2012Upholstered furniture sofas | |
| Formaldehyde limit | GB 18584Indoor decorating and refurbishing materials limit of harmful substances |
This product must meet the following technical requirements: 1. Structural safety: GB/T 3324General technical requirements for wooden furniture; 2. Upholstery durability: GB/T 2012Upholstered furniture sofas; 3. Formaldehyde limit: GB 18584Indoor decorating and refurbishing materials limit of harmful substances; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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