| Submitted | Field | Original | 修改后参数 | Note / Status |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 670 x 680 x 1180mm | |
|---|---|---|
| Seat height range | 500mm | |
| Seat width | 510 mm | |
| Seat depth | 490 mm | |
| Backrest total height (seat to top of headrest) | 760mm | |
| Lumbar support zone height from seat | 230mm | |
| Armrest height from seat | 260mm | |
| Five-star base diameter | 680 mm | |
| Headrest dimensions | 430 x 220 mm | |
| Caster diameter | 60 mm | |
| Knee clearance under seat (minimum) | 120 mm | |
| Seat height adjustment range | 500mm | |
| Finished Seat Cushion Thickness | 90mm | |
| Backrest Padding Thickness | 70mm | |
| Lumbar Support Zone Height | 240mm | |
| Clear Width Between Armrests | 540mm |
Net weight / load capacity / users / durability
| Net weight range | 23kg | |
|---|---|---|
| Maximum static load capacity | 136 kg | |
| Recommended user weight limit | 110 kg | |
| Gas lift vertical stroke | 80 mm | |
| Backrest tilt angle range | 125 degrees | |
| Seat foam compression durability | ≥40000 cycles | |
| Mesh back abrasion resistance | ≥30000 Martindale cycles | |
| Caster rolling durability | ≥100000 rolling cycles | |
| Estimated service life (commercial use) | 7 years | |
| Net product weight (approximate) | 23kg |
Core acceptance fields · Panels / hardware / frame / upholstery
| Headrest upholstery | Breathable polyester mesh over contoured PP support frame | |
|---|---|---|
| Backrest support structure | Y-shaped reinforced PP inner frame with elastic tension mesh | |
| Lumbar support pad | Tensioned adjustable mesh pad with ribbed support zones | |
| Seat upholstery and padding | Woven fabric outer cover over 55mm thick 45kg/m³ density molded high-resilience foam | |
| Armrest structure | Die-cast aluminum alloy fixed loop armrests with matte silver powder coat finish | |
| Chair internal frame and tilt mechanism | 2.5mm thick cold-rolled steel plate chassis with powder coated finish | |
| Five-star base | Polished die-cast aluminum alloy 5-leg base, 3mm wall thickness | |
| Gas lift | Class 3 nitrogen-filled steel gas lift with black outer column | |
| Casters | 60mm diameter black PU soft tread casters with nylon wheel housing | |
| Seam stitch pitch | 8 stitches per inch | |
| Headrest upholstery and frame | Breathable dark grey polyester mesh stretched over contoured high-impact PP support frame | |
| Backrest primary support structure | Y-shaped reinforced PP inner back frame with tensioned elastic polyester mesh suspension |
Adjustment / rotation / tilt / mobility / storage features
| Seat height adjustment | Pneumatic adjustment via right-side lever, 80mm total travel to align with 760mm standard desk height | |
|---|---|---|
| Backrest tilt adjustment | Synchronized tilt with seat pan, 5 locking positions across 35 degree recline range via visible rear toothed rack bracket | |
| Adjustable lumbar support | Height-adjustable tensioned lumbar pad, 50mm vertical travel to match user lumbar curve position | |
| Headrest adjustment | Height and angle adjustable headrest, 60mm vertical travel and 30 degree pivot to support neck in upright and reclined positions | |
| Swivel function | 360 degree unlimited swivel rotation on central gas lift bearing | |
| Mobility | Smooth rolling on 5 twin-wheel casters, suitable for hard wood, tile and low-pile carpet floors | |
| Weight-activated tilt tension | Automatic tension adjustment matching user weight to control recline resistance | |
| Synchronized seat-back tilt control | Synchronized tilt mechanism where backrest reclines 2.3° for every 1° of seat pan tilt, 5 discrete locking positions across 35° recline range via visible rear toothed rack bracket, unlocked free-float mode available | |
| Headrest multi-axis adjustment | Dual-adjustable headrest with 60mm vertical travel and 30° pivot angle range, lockable at desired position to support neck in upright working and reclined resting positions | |
| 360° swivel rotation | Unlimited 360-degree horizontal swivel rotation on central gas lift precision bearing, no rotation stops for flexible positioning | |
| Floor mobility | Smooth omnidirectional rolling on 5 evenly spaced twin-wheel PU casters, suitable for hardwood, tile, laminate and low-pile carpet floors without surface damage | |
| Tilt tension adjustment | Manual rotary tension adjustment knob under seat to adjust recline resistance between 100kg user weight range, to prevent sudden backward recline |
Verified carton / gross weight / assembly / loading data
| Number of packages | 1 carton | |
|---|---|---|
| Shipping carton dimensions | 850 x 660 x 380 mm | |
| Gross shipping weight | 27kg | |
| Packaging volume (CBM) | 0.21 CBM | |
| Assembly time | 25minutes per unit | |
| 20ft GP container loading capacity | 145 units | |
| 40ft HC container loading capacity | 350 units | |
| Number of shipping packages | 1 corrugated carton | |
| Knockdown shipping carton dimensions | 850 x 660 x 380mm | |
| Gross shipping weight (including packaging) | 27kg |
Recommended spaces / users / usage modes
| Open plan office workstations | Designed for 8+ hour daily seated use, with breathable mesh back to reduce heat build-up in shared office environments | |
|---|---|---|
| Executive private offices | High-back design with head and neck support suitable for extended work and video conference calls in private office settings | |
| Residential home office workspaces | Compact 670mm width footprint and multi-point adjustment features suitable for residential home office desk setups, soft PU casters safe for hardwood and tile residential floors without scratching | |
| Meeting room / conference spaces | Swivel and tilt functionality supports active discussion and long meeting durations, durable construction for high frequency shared use | |
| Co-working flexible spaces | Adjustable seat height and lumbar support accommodates a wide range of user body types in shared flexible workspaces | |
| Meeting and conference rooms | 360° swivel and synchronized tilt functionality supports active discussion and long meeting durations, durable mesh and fabric construction rated for high-frequency shared multi-user use | |
| Flexible co-working spaces | 5-position lumbar support, 80mm seat height adjustment and 30° headrest pivot accommodate a wide range of 5th to 95th percentile adult user body types in unassigned shared workspaces | |
| Recommended Matching Desk Size | 2.4m executive desk |
European market access and chemical requirements
| EN 1335-1:2020 | Office furniture - Office work chairs - Part 1: Dimensions - safety requirements, recommended to verify dimensional suitability for European market users | |
|---|---|---|
| EN 1335-2:2018 | Office furniture - Office work chairs - Part 2: Safety requirements, recommended structural strength validation for commercial use | |
| EN 1335-3:2009 | Office furniture - Office work chairs - Part 3: Test methods, recommended test protocol for stability, durability and load testing |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 Test 10 | Backrest durability test requirement of 120000 cycles at 445N applied load, recommended to validate long-term commercial use durability |
|---|
Standards applicable to China-market projects
| GB/T 3326-2016 | Furniture dimensional coordination standard for desk, chair and storage furniture, to verify seat height, armrest height and clearance align with standard desk dimensions | |
|---|---|---|
| GB 18584-2001 | Indoor decorating and refurbishing materials - limit of harmful substances for wood based furniture, recommended for formaldehyde and VOC emission testing of seat foam and fabric | |
| GB/T 10357.3-2013 | Test of mechanical properties of furniture - Strength and durability of chairs and stools, recommended for static load, impact and durability validation for commercial use |
This product must meet the following technical requirements: 1. GB/T 3326-2016: Furniture dimensional coordination standard for desk, chair and storage furniture, to verify seat height, armrest height and clearance align with standard desk dimensions; 2. GB 18584-2001: Indoor decorating and refurbishing materials - limit of harmful substances for wood based furniture, recommended for formaldehyde and VOC emission testing of seat foam and fabric; 3. GB/T 10357.3-2013: Test of mechanical properties of furniture - Strength and durability of chairs and stools, recommended for static load, impact and durability validation for commercial use; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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