| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| overall dimensions | 645 x 700 x 1250 mm | |
|---|---|---|
| seat width | 515 mm | |
| seat depth | 505 mm | |
| seat height range | 555 mm | |
| backrest height | 580 mm | |
| armrest height above seat | 250 mm | |
| headrest projection from back | 95 mm | |
| five-star base diameter | 700 mm | |
| seat to top of headrest total height | 730 mm | |
| armrest pad length | 420 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 | 18 kg | |
|---|---|---|
| recommended user weight capacity | 136 kg | |
| seat cushion foam density | 45 kg/m³ | |
| seat foam rebound rate | 45% | |
| mesh abrasion resistance | 50000 cycles | |
| static load rating for five-star base | 1130 kg | |
| caster rolling durability | 100000 cycles | |
| recommended daily use duration | 8 hours | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% | |
| Back Foam Density Reference | 38 kg/m³ |
Core acceptance fields · Panels / hardware / frame / upholstery
| backrest upholstery | Breathable grey woven polyester mesh | |
|---|---|---|
| seat cushion padding | 70 mm thick high-density molded foam | |
| backrest frame | Glass-fiber reinforced PA plastic | |
| central gas lift | Chrome-plated steel Class 4 pneumatic cylinder | |
| five-star base | Polished die-cast aluminium alloy | |
| armrest pads | Soft PU surface over rigid PP support | |
| casters | 60 mm dual-wheel PU casters | |
| headrest padding | Breathable mesh over curved frame | |
| internal seat frame | 3 mm thick stamped steel plate | |
| seam stitch pitch | 8 stitches per inch | |
| 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 rotation enabled by central swivel mechanism | |
|---|---|---|
| pneumatic seat height adjustment | 85 mm stroke controlled by under-seat lever | |
| backrest recline function | Up to 125 degree recline with multi-position lock | |
| height-adjustable armrests | 75 mm vertical adjustment range for arm pad height | |
| articulating headrest adjustment | Height and angle adjustment for neck support | |
| adaptive lumbar support | Contoured segmented mesh zones for lower back support | |
| synchro-tilt mechanism | Synchronized seat and back tilt with tension adjustment | |
| smooth rolling mobility | Dual-wheel casters suitable for hard floors and low-pile carpet | |
| 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
| export carton dimensions | 920 x 450 x 680 mm | |
|---|---|---|
| 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
| private office workstation | Suitable for executive and staff desks requiring 8-hour daily seating | |
|---|---|---|
| home office setup | Fits standard desk heights for remote work and long computer sessions | |
| open-plan office areas | Neutral grey finish matches modern office interior design schemes | |
| co-working spaces | Adjustable features accommodate users of varying heights and seating preferences | |
| meeting and conference rooms | Professional appearance and swivel function suit collaborative meeting environments | |
| 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, applicable to structural and stability verification | |
|---|---|---|
| EN 1335-2:2018 | Office work chairs - test methods, applicable to functional durability validation | |
| EN 1022:2018 | Furniture - seating - determination of stability, applicable to overturn risk testing |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Office chairs standard, applicable to static, dynamic and durability performance testing |
|---|
Standards applicable to China-market projects
| GB/T 3325-2017 | General technical requirements for metal furniture, applicable to structural strength testing | |
|---|---|---|
| GB 28007-2011 | Safety requirements for office chairs, applicable to stability and edge safety checks |
This product must meet the following technical requirements: 1. GB/T 3325-2017: General technical requirements for metal furniture, applicable to structural strength testing; 2. GB 28007-2011: Safety requirements for office chairs, applicable to stability and edge safety checks; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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