| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 740 x 830 x 1280 mm | |
|---|---|---|
| Seat width | 620 mm | |
| Seat depth | 570 mm | |
| Adjustable seat height range | 540 mm | |
| Backrest height | 780 mm | |
| Backrest width | 600 mm | |
| Fixed armrest height (from floor) | 730 mm | |
| Five-star wood base diameter | 686 mm | |
| Caster diameter | 60 mm | |
| Seat cushion thickness | 120 mm | |
| Backrest padding thickness | 100 mm | |
| Armrest width | 90 mm | |
| Finished Seat Cushion Thickness | 90 mm | |
| Lumbar Support Zone Height | 240 mm | |
| Clear Width Between Armrests | 540 mm |
Net weight / load capacity / users / durability
| Recommended maximum user weight | 181 kg | |
|---|---|---|
| Net product weight | 28 kg | |
| Maximum recline angle | 138 degrees | |
| Upholstery abrasion resistance | 50000 Martindale cycles | |
| Seat foam density | 55 kg/m³ | |
| Foam rebound rate | 45% | |
| Gas lift static load rating | 150 kg | |
| Five-star base static load rating | 1136 kg | |
| Caster rolling durability | 100000 cycles | |
| Seam stitch pitch | 8 stitches per inch |
Core acceptance fields · Panels / hardware / frame / upholstery
| Seat and back upholstery | Vintage brown top-grain cow leather | |
|---|---|---|
| Internal seat/back substrate | 15 mm thick multi-layer plywood | |
| Armrests and frame trim | Carved solid hardwood with mahogany stain finish | |
| Five-star base | Solid hardwood with matching stain finish, 30 mm member thickness | |
| Cushion core | High-density polyurethane foam with no added flame retardant | |
| Tilt mechanism plate | 3 mm thick cold-rolled steel with black powder coat | |
| Gas lift cylinder | 100 mm stroke chrome-plated steel, Class 3 rated | |
| Casters | 60 mm diameter black nylon twin-wheel casters, floor-safe | |
| Upholstery trim | Antique brass decorative nailhead trim | |
| Internal support springs | 1.8 mm gauge sinuous springs 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 |
Adjustment / rotation / tilt / mobility / storage features
| 360-degree swivel rotation | Full 360° rotation enabled by central swivel joint | |
|---|---|---|
| Pneumatic seat height adjustment | 90 mm vertical adjustment via side actuated gas lift | |
| Multi-position recline lock | Lockable recline from 90° upright to 138° tilted position | |
| Tilt tension adjustment | Knob-adjusted tension to match user body weight | |
| Smooth rolling mobility | Five twin-wheel casters for movement on hard floors or low-pile carpet | |
| Integrated ergonomic support | Contoured back with built-in lumbar and headrest zones | |
| Fixed padded arm support | Solid carved wood arms with integrated leather-padded contact surfaces | |
| Upright position lock | Secure lock for upright seated posture during desk work | |
| 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/executive desks, matching traditional wood office furniture styling | |
|---|---|---|
| Boardroom/conference room | Appropriate for formal meeting spaces requiring classic professional aesthetics | |
| Home office study | Suitable for premium residential workspaces with traditional wood interior design | |
| Senior management workspaces | Designed for 8+ hours daily seated use for professional office staff | |
| Traditional style office fit-outs | Matches classic mahogany/wood veneer desk and cabinet collections | |
| Reception executive areas | Appropriate for high-end reception spaces serving senior client meetings | |
| 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 | Applies to office work chair dimensional and functional safety requirements | |
|---|---|---|
| EN 1335-2:2018 | Applies to office chair structural strength and durability performance testing | |
| EN 1335-3:2009 | Applies to office chair test methods for structural and safety verification |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Applies to general-purpose office chair strength, durability and stability requirements |
|---|
Standards applicable to China-market projects
| GB/T 3326-2016 | Applies to office furniture chair dimensional accuracy and stability testing | |
|---|---|---|
| GB/T 35607-2017 | Applies to leather furniture upholstery material quality and performance requirements | |
| GB 28007-2011 | Applies to office chair general safety requirements for structural strength |
This product must meet the following technical requirements: 1. GB/T 3326-2016: Applies to office furniture chair dimensional accuracy and stability testing; 2. GB/T 35607-2017: Applies to leather furniture upholstery material quality and performance requirements; 3. GB 28007-2011: Applies to office chair general safety requirements for structural strength; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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