| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions (W x D x adjustable H) | 740 x 880 x 1255 mm | |
|---|---|---|
| Seat height adjustment range | 550 mm | |
| Seat cushion depth | 520 mm | |
| Seat cushion width | 520 mm | |
| Backrest total height | 820 mm | |
| Backrest width | 540 mm | |
| Armrest height from seat surface | 200 mm | |
| Armrest height from floor (mid-height setting) | 700 mm | |
| Retractable footrest extension length | 420 mm | |
| Five-star base diameter | 680 mm | |
| Caster wheel diameter | 50 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 (reference) | 37 kg | |
|---|---|---|
| Recommended user weight capacity | 250 kg | |
| Seat static load rating | 1300 N | |
| Backrest static load rating | 560 N | |
| Armrest vertical static load rating | 800 N | |
| Gas lift durability cycles | 300000 lifts | |
| Caster rolling durability | 100000 cycles | |
| Upholstery abrasion resistance (Martindale) | 50000 cycles | |
| 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 | 1.2mm thick black top-grain leather surface | |
|---|---|---|
| Seat cushion core | 140mm thick 40kg/m³ high-density cold-cure foam | |
| Backrest cushion core | 100mm thick 32kg/m³ molded high-density foam | |
| Armrest caps | Polished solid hardwood with clear environmental lacquer | |
| Armrest support pads | Leather-wrapped padded surface under wood caps | |
| Internal support frame | 18mm thick plywood reinforced with solid wood battens | |
| Five-star base | 2.0mm thick chrome-plated polished steel | |
| Gas lift cylinder | Class 4 chrome-plated steel, 100mm stroke | |
| Recline mechanism chassis | 3.0mm thick steel plate with tension adjustment | |
| Caster wheels | 50mm diameter PU dual-wheel silent casters | |
| Footrest structure | Chrome-plated steel frame with padded leather top | |
| Seat Internal Support Board Thickness | 14 mm bent plywood or equivalent support board |
Adjustment / rotation / tilt / mobility / storage features
| 360-degree swivel rotation | Full 360° horizontal rotation enabled by central gas lift joint | |
|---|---|---|
| Seat height adjustment | 100mm vertical travel via side-mounted chrome gas lift lever | |
| Lockable backrest recline | 135° maximum recline angle with infinite position lock | |
| Recline tension adjustment | Knob adjusts tilt resistance to match user body weight | |
| Retractable pull-out footrest | Slide-out footrest extends 420mm from front seat edge | |
| Smooth rolling mobility | Dual-wheel PU casters roll on carpet and hard floor surfaces | |
| Integrated lumbar support | Contoured backrest padding provides built-in lumbar support | |
| Integrated headrest zone | Upper back padding forms dedicated head and neck support zone | |
| 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 | Formal professional seating for senior management and director workspaces | |
|---|---|---|
| Home office study | Comfortable reclining seating for long work sessions and work breaks | |
| Boardroom meeting space | Premium seating for meeting room head-of-table positions | |
| Leadership reception areas | Comfortable seating for guest reception in executive offices | |
| 24/7 management control rooms | Heavy-duty construction supports extended daily use for operations staff | |
| 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 1335-1:2000 | Office furniture - Office work chairs - Dimensions, applies to ergonomic dimension validation | |
|---|---|---|
| EN 1335-2:2018 | Office furniture - Office work chairs - Safety requirements, applies to structural safety compliance | |
| EN 1022:2018 | Furniture - Seating - Determination of stability, applies to tip-resistance testing |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 Clause 10 | Backrest static load test requirement of 560N for executive office chairs |
|---|
Standards applicable to China-market projects
| GB/T 10357.3-2013 | Furniture mechanical performance test for chairs, covers static and fatigue load testing | |
|---|---|---|
| GB 18584-2001 | Indoor decorating material limit of harmful substances for wooden furniture, applies to wood components |
This product must meet the following technical requirements: 1. GB/T 10357.3-2013: Furniture mechanical performance test for chairs, covers static and fatigue load testing; 2. GB 18584-2001: Indoor decorating material limit of harmful substances for wooden furniture, applies to wood components; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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