| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 580 x 520 x 790 mm | |
|---|---|---|
| Seat height | 450 mm | |
| Seat depth | 420 mm | |
| Seat width | 510 mm | |
| Backrest height | 340 mm | |
| Armrest height from floor | 680 mm | |
| Leg spread width | 520 mm | |
| Leg spread depth | 480 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 | 9 kg | |
|---|---|---|
| Recommended static load capacity | 159 kg | |
| Seat shell thickness | 8 mm | |
| Bentwood leg thickness | 18 mm | |
| Swivel plate static load rating | 160 kg | |
| Floor glide contact diameter | 20 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 | |
| Five-star Base Static Load Reference | Acceptance target ≥120 kg; chair reference load 150 kg |
Core acceptance fields · Panels / hardware / frame / upholstery
| Seat and back shell | Matte light gray injection-molded polypropylene | |
|---|---|---|
| Legs | Walnut-toned bent laminated plywood | |
| Swivel mechanism | Powder-coated carbon steel rotating plate | |
| Floor glides | Black non-marking plastic pads | |
| Leg connection hardware | Zinc-plated steel bolts and inserts | |
| Shell surface finish | Textured matte anti-scratch PP coating | |
| Leg joint reinforcement | Solid wood cross-brace at swivel mount | |
| 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° smooth bidirectional swivel via steel plate mechanism | |
|---|---|---|
| Surface maintenance | Wipe-clean shell resists common food and beverage spills | |
| Floor protection | Fixed non-marking glides suitable for hard wood, tile and vinyl floors | |
| Assembly requirement | Leg assembly to seat frame with included hardware | |
| Stacking capability | Non-stackable design due to wide splayed leg base | |
| Ergonomic support | Curved integrated back and armrests support upright posture during dining | |
| 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 space | Suitable for home dining rooms and kitchen islands matching 760 mm table height | |
|---|---|---|
| Contract food service | Applicable for cafes, bistros and co-working break areas with frequent guest turnover | |
| Meeting room ancillary seating | Fits small conference rooms and visitor areas requiring modern minimalist aesthetic | |
| Small apartment spaces | Compact footprint supports flexible arrangement in open-plan living areas | |
| Hard floor surfaces | Designed for use on wood, tile and luxury vinyl floors with integrated protective glides | |
| 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 | Furniture – Strength, durability and safety for domestic seating | |
|---|---|---|
| EN 1022:2018 | Seating – Determination of stability for upright dining chairs | |
| EN 16139:2013 | Strength and durability requirements for non-domestic contract seating |
Standards applicable to China-market projects
| GB/T 3324-2017 | General technical requirements for wooden furniture, applicable to bentwood leg structure | |
|---|---|---|
| GB/T 2828.1-2012 | Sampling inspection procedures for incoming furniture quality verification | |
| GB 18584-2001 | Indoor decorating material limit of harmful substances for wooden furniture |
This product must meet the following technical requirements: 1. GB/T 3324-2017: General technical requirements for wooden furniture, applicable to bentwood leg structure; 2. GB/T 2828.1-2012: Sampling inspection procedures for incoming furniture quality verification; 3. GB 18584-2001: Indoor decorating material limit of harmful substances for wooden furniture; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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