| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 680mm (W) × 700mm (D) × 1150mm (H) | |
|---|---|---|
| Seat height adjustment range | 520 mm | |
| Seat cushion usable size | 510mm (W) × 500mm (D) | |
| Seat cushion padding thickness | 100mm | |
| Backrest total height | 720mm | |
| Backrest padding thickness | 90mm | |
| Armrest height above seat | 220mm | |
| Five-star base outer diameter | 700mm | |
| Gas lift column outer diameter | 50mm | |
| PU caster diameter | 50mm | |
| Backrest top headrest zone width | 480mm | |
| Knee clearance under seat at lowest height | 150mm | |
| Finished Seat Cushion Thickness | 90 mm | |
| Lumbar Support Zone Height | 240 mm | |
| Clear Width Between Armrests | 540 mm |
Net weight / load capacity / users / durability
| Net weight reference | 28 kg | |
|---|---|---|
| Recommended static user load capacity | 150kg | |
| Maximum recline angle range | 135° | |
| Gas lift lift cycle durability reference | 100000 cycles | |
| Five-star base static load rating | 1000kg | |
| Caster rolling durability reference | 40000 cycles | |
| Upholstery abrasion resistance reference | 50000 Martindale cycles | |
| Foam density | 40kg/m³ | |
| Foam rebound rate | 45% | |
| 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 | |
| Gas-lift Cycling Reference | Acceptance target 100000 cycles | |
| Upholstery Seam Pitch | 4 mm | |
| Recommended Procurement Warranty | Frame 5 years; mechanism/gas lift 3 years; upholstery 2 years |
Core acceptance fields · Panels / hardware / frame / upholstery
| Seat/back contact surface upholstery | Light taupe cat-scratch resistant faux leather, 1.0mm thickness | |
|---|---|---|
| Outer side shell upholstery | Dark gray smooth faux leather matching seating material, 0.9mm thickness | |
| Internal seat/back padding | High-density polyurethane foam, CFC-free | |
| Inner support frame | 15mm thick molded plywood + 1.2mm steel reinforcement frame | |
| Tilt mechanism chassis | 2.0mm thick cold-rolled steel airplane-style chassis, black powder-coat finish | |
| Height adjustment gas lift | SGS-certified Class 3 steel pneumatic cylinder, chrome-plated outer tube | |
| Five-star base | R350 chrome-plated polished carbon steel, 1.5mm tube wall thickness | |
| Armrest structure | Integrated padded armrest: steel inner frame, wrapped with matching taupe faux leather and 20mm foam padding | |
| Casters | Black PU soft tread dual-wheel casters, with steel roller bearings | |
| Seam stitching | Polyester thread, 8mm stitch pitch, reinforced stress points at armrests and seat edges | |
| Surface treatment of metal parts | Chrome plating on base/gas lift, anti-rust phosphate pre-treatment, black powder coating on mechanism parts | |
| Seat Internal Support Board Thickness | 14 mm bent plywood or equivalent support board | |
| Backrest Internal Frame Thickness | 14 mm bent plywood/composite reinforced frame | |
| Five-star Base Material Thickness | Metal base wall 3.5 mm; diameter 700 mm | |
| Caster Engineering Specification | 5 PU-tread swivel casters, 60 mm diameter | |
| Reference Color Count | Recommended 5upholstery colors and 2base finishes |
Adjustment / rotation / tilt / mobility / storage features
| Seat height adjustment | Pneumatic height adjustment via right-side lever, 100mm stroke range to adapt to 760 mm standard desk heights | |
|---|---|---|
| 360° swivel rotation | Full 360-degree horizontal rotation enabled by central gas lift stem, no rotation lock for flexible desk access | |
| Backrest tilt function | Synchro tilt via airplane chassis, 1:2.3 seat-to-back tilt ratio, adjustable tension knob under seat for user weight matching | |
| Tilt lock function | Lockable in upright position and 1 mid-recline position via chassis control lever for fixed working posture | |
| Smooth rolling mobility | 5 dual-wheel PU casters, swivel 360° at base leg ends, suitable for hard wood, tile and low-pile carpet floors without scratching | |
| Fixed padded arm support | Integrated non-adjustable padded armrests, contoured to support forearms during typing and meetings, no height/width adjustment | |
| Ergonomic contour support | Segmented padded backrest with upper back/neck support zone, lumbar contour in mid-back zone, waterfall seat front edge to reduce leg pressure | |
| Anti-explosion safety feature | Gas lift fitted with steel safety cone to prevent sudden descent in case of cylinder failure | |
| 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 carton dimensions | 850mm (L) × 680mm (W) × 420mm (H) | |
|---|---|---|
| Reference gross weight per carton | 27kg | |
| Reference carton volume (CBM) | 0.243 CBM | |
| Assembly time range | 25 minutes | |
| 20ft GP container loading reference | 108 units | |
| 40ft HQ container loading reference | 270 units | |
| Packaging components | 5-layer corrugated carton, EPS foam corner protection, PE bag wrapping for seat/back, hardware kit with assembly tools, printed instruction manual | |
| Reference Package Count | 1 set / 2 cartons | |
| Reference Assembly Time | 40 minutes per set | |
| Reference Packaged Gross Weight | 23 kg/set |
Recommended spaces / users / usage modes
| Executive private office | Suitable for manager/executive desk use, tall back provides upper back support during long working hours, polished chrome base matches formal office decor | |
|---|---|---|
| Conference/meeting room | Suitable for head-of-table seating in medium/large conference rooms, swivel and rolling function allows easy movement around meeting tables, professional appearance fits business meeting environments | |
| Home office workspace | Suitable for premium home office setups, scratch-resistant faux leather is pet-friendly, neutral two-tone color matches modern home decor styles | |
| Reception/executive waiting area | Can be used as guest seating for high-level reception areas, padded armrests and cushioned seat provide comfortable waiting experience, chrome finish maintains premium appearance | |
| Target user group | Suitable for users 188 cm tall, weight up to 150kg, for daily office use 10 hours per day | |
| Recommended desk compatibility | Matches standard 760 mm height office desks, L-shaped executive desks, and 2000 mm wide manager desks with 700mm+ depth knee space | |
| Color option reference | Available in standard colorways including black, dark gray, light taupe, brown per close product references, supports custom color for bulk orders over 50 units | |
| 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 furniture - Office work chairs - Part 1: Dimensions - Safety requirements, applies to functional dimension verification for desk use | |
|---|---|---|
| EN 1335-2:2018 | Office furniture - Office work chairs - Part 2: Safety requirements, applies to structural strength, stability and safety testing | |
| EN 1335-3:2009 | Office furniture - Office work chairs - Part 3: Test methods, specifies test procedures for strength, durability and stability | |
| EN 1022:2018 | Furniture - Seating - Determination of stability, applies to static and dynamic stability testing of the wheeled chair |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1 Test 5: Backrest durability | 120000 cycle backrest load test reference for heavy-use executive office chairs |
|---|
Standards applicable to China-market projects
| GB/T 3324-2017 | General technical requirements for wooden furniture, applies to internal plywood/wood structural frame components | |
|---|---|---|
| GB/T 16799-2008 | Furniture leather standard, applies to faux/cat-scratch leather upholstery material performance and physical indicators |
This product must meet the following technical requirements: 1. GB/T 3324-2017: General technical requirements for wooden furniture, applies to internal plywood/wood structural frame components; 2. GB/T 16799-2008: Furniture leather standard, applies to faux/cat-scratch leather upholstery material performance and physical indicators; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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