| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 580 x 620 x 850 mm | |
|---|---|---|
| Seat height | 500 mm | |
| Seat width | 510 mm | |
| Seat depth | 490 mm | |
| Backrest height | 400 mm | |
| Armrest height from seat | 200 mm | |
| Armrest height from floor | 650 mm | |
| Leg taper width (top) | 35 mm | |
| Leg taper width (floor contact) | 20 mm | |
| Seat cushion thickness | 80 mm | |
| Back cushion thickness | 50 mm | |
| Leg splay angle from vertical | 8 degrees | |
| 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 | 8.4 kg | |
|---|---|---|
| Static weight capacity | 200 kg | |
| Seat foam density | 45 kg/m³ | |
| Seat foam rebound rate | 45% | |
| Back foam density | 35 kg/m³ | |
| Frame static load at armrest | 90 kg | |
| Floor glide load rating per leg | 60 kg | |
| Color option count | 6 | |
| Commercial warranty period | 3 years | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% |
Core acceptance fields · Panels / hardware / frame / upholstery
| Structural frame | Solid rubberwood with matte black lacquer finish | |
|---|---|---|
| Seat upholstery fabric | Woven polyester fabric, 0.8 mm thickness, 30000 double-rub abrasion rating | |
| Backrest upholstery fabric | Matching woven polyester fabric, same color and grade as seat | |
| Seat cushion core | High-density polyurethane foam, wrapped in 20 gsm Dacron batting | |
| Back cushion core | Medium-density polyurethane foam, attached to inner back panel | |
| Armrests | Integrated solid wood armrests, same black finish as frame, rounded edge profile | |
| Leg floor glides | Hard nylon non-marking glides, press-fit into leg bases | |
| Joinery hardware | Zinc-plated steel KD connectors, M8 bolt size | |
| Inner seat support | 12 mm thick plywood base panel under seat cushion | |
| 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
| Frame mobility | Fixed rigid four-leg structure, no swivel, casters, or recline function | |
|---|---|---|
| Seating posture | Upright 100-degree backrest angle for formal dining use | |
| Assembly requirement | Knock-down assembly, leg attachment only with included Allen key and hardware | |
| Back support function | Contoured padded central back panel, centered for lumbar support | |
| Arm support function | Full-length integrated armrests extending from front legs to back frame | |
| Floor protection function | Non-marking nylon glides prevent scratches on hard floor surfaces | |
| Cleaning function | Stain-resistant woven fabric allows spot cleaning with mild detergent | |
| Stacking compatibility | Non-stacking fixed frame design, intended for floor placement at dining tables | |
| 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 dining room | Pairs with 750 mm height standard dining tables for daily family meals | |
|---|---|---|
| Commercial restaurant use | Suitable for casual and upscale dining venues with fixed seating layouts | |
| Hotel guest room seating | Works as desk or dining chair in hotel suites and serviced apartments | |
| Cafe and bistro seating | Durable construction for high-traffic light commercial food service spaces | |
| Conference breakout areas | Provides comfortable upright seating for small meeting and lounge spaces | |
| Banquet hall seating | Stackable alternative? No, fixed design for permanent formal banquet setups | |
| 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 and contract furniture seating strength, durability and safety requirements | |
|---|---|---|
| EN 1022:2018 | Furniture seating determination of stability for four-leg upright chairs | |
| EN 16139:2013 | Contract non-domestic seating strength and durability requirements for commercial use |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | General-purpose office chairs standard (reference only for seating load test thresholds) | |
|---|---|---|
| ANSI/BIFMA X6.1-2019 | Educational and institutional seating reference for four-leg chair stability |
Standards applicable to China-market projects
| GB/T 3324-2017 | General technical requirements for wooden furniture, applicable to solid wood frame structural integrity | |
|---|---|---|
| GB 18584-2001 | Indoor decorating and refurbishing materials limit of harmful substances for wooden furniture | |
| GB/T 19833-2005 | Furniture chairs and stools strength and durability test methods for seating performance |
This product must meet the following technical requirements: 1. GB/T 3324-2017: General technical requirements for wooden furniture, applicable to solid wood frame structural integrity; 2. GB 18584-2001: Indoor decorating and refurbishing materials limit of harmful substances for wooden furniture; 3. GB/T 19833-2005: Furniture chairs and stools strength and durability test methods for seating performance; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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