| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 830 x 889 x 1300 mm | |
|---|---|---|
| Seat width | 550 mm | |
| Seat depth | 520 mm | |
| Adjustable seat height | 500 mm | |
| Backrest height | 800 mm | |
| Armrest height above seat | 220 mm | |
| Five-star base diameter | 700 mm | |
| Caster wheel diameter | 50 mm | |
| Backrest width at shoulder level | 580 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
| Recommended user weight capacity | 160 kg | |
|---|---|---|
| Seat foam density | 60 kg/m³ | |
| Backrest foam density | 40 kg/m³ | |
| Foam rebound rate | 45% | |
| Gas lift rated lift cycles | 100000 cycles | |
| Caster rolling durability | 100000 cycles | |
| Net product weight | 45 kg | |
| Seam stitch pitch | 8 stitches per 30mm | |
| 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 back upholstery | 1.4mm thick black top-grain leather with contrast stitching | |
|---|---|---|
| Seat padding | Molded high-density polyurethane foam | |
| Backrest padding | High-density polyurethane foam with lumbar support padding | |
| Armrest structure | Polished solid hardwood frame with high-gloss lacquer finish | |
| Five-star base | Solid polished hardwood construction with chrome steel center hub | |
| Internal seat frame | 12mm thick multi-layer plywood support board | |
| Caster wheels | Dual-wheel soft PU material with metal swivel stems | |
| Gas lift and mechanism | Chrome-plated steel gas lift and thickened steel tilt chassis | |
| Wood finish | Low-VOC glossy clear lacquer on wood arms and base | |
| Seat Internal Support Board Thickness | 14 mm bent plywood or equivalent support board | |
| Backrest Internal Frame Thickness | 14 mm bent plywood/composite reinforced frame | |
| Tilt Mechanism Plate Thickness | 2.5 mm cold-rolled steel |
Adjustment / rotation / tilt / mobility / storage features
| Seat height adjustment | Pneumatic height adjustment with 100mm vertical stroke via side lever | |
|---|---|---|
| 360-degree swivel rotation | Full 360° horizontal rotation around central axis enabled by swivel hub | |
| Tilt function | Backrest tilt with 15° maximum recline angle and upright lock position | |
| Tilt tension control | Adjustable tilt tension knob to match user weight for recline resistance | |
| Mobility function | Five dual-wheel casters enable smooth rolling on hard floors and low-pile carpet | |
| Ergonomic support | Integrated contoured lumbar support and padded headrest section for full back support | |
| Arm support | Fixed curved solid wood armrests positioned for natural resting elbow height | |
| 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
| Executive private office | Suitable for CEO, director, or manager private workspaces for professional use | |
|---|---|---|
| Formal boardroom/meeting room | Applicable for high-end conference room seating for senior meeting participants | |
| Senior management reception area | Suitable for important visitor and guest seating in reception offices | |
| Standard office workstation for senior staff | Fits full-time seated desk work with ergonomic support and mobility | |
| Matching solid wood office furniture set | Designed to coordinate with solid wood executive desks and filing cabinets | |
| 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 1335-1:2020 | Office work chairs - Safety requirements for office seating | |
|---|---|---|
| EN 1335-2:2018 | Office work chairs - Test methods for strength, durability and stability | |
| EN 1021-1:2014 | Furniture upholstery flammability resistance to smoldering cigarette |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1 Test 5 | Five-star base static load test requirement for 1136 kg minimum load | |
|---|---|---|
| Static load rating for five-star base | 1136 kg |
Standards applicable to China-market projects
| GB/T 3324-2017 | General technical requirements for wooden furniture, applicable to wood arms and base | |
|---|---|---|
| GB/T 16799-2008 | Leather for furniture, applicable to upholstery material performance | |
| GB/T 10357.3-2013 | Test method for strength and durability of chairs and stools | |
| GB 18584-2001 | Limit of harmful substances for wooden furniture interior materials |
This product must meet the following technical requirements: 1. GB/T 3324-2017: General technical requirements for wooden furniture, applicable to wood arms and base; 2. GB/T 16799-2008: Leather for furniture, applicable to upholstery material performance; 3. GB/T 10357.3-2013: Test method for strength and durability of chairs and stools; 4. GB 18584-2001: Limit of harmful substances for wooden furniture interior materials; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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