| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 670 x 640 x 1090 mm | |
|---|---|---|
| Backrest width | 505 mm | |
| Backrest height | 580 mm | |
| Seat width | 490 mm | |
| Seat depth | 460 mm | |
| Seat cushion thickness | 50 mm | |
| Seat height adjustment range | 520 mm | |
| Armrest height above seat | 180 mm | |
| Five-star base diameter | 640 mm | |
| Backrest top height above seat | 715 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 | 11 kg | |
|---|---|---|
| Maximum recommended static load | 200 kg | |
| Recommended user height range | 1850 mm | |
| Seat foam density | 45 kg/m³ | |
| Seat foam rebound rate | 45% | |
| Back mesh abrasion resistance | 50000 Martindale cycles | |
| Caster rolling durability | 100000 cycles | |
| 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 |
Core acceptance fields · Panels / hardware / frame / upholstery
| Backrest upholstery | Breathable woven polyester mesh | |
|---|---|---|
| Back frame | Glass-fiber reinforced polypropylene | |
| Seat core padding | High-density molded polyurethane foam | |
| Seat surface fabric | Woven polyester fabric | |
| Fixed armrests | Injection-molded polypropylene | |
| Gas lift cylinder | Carbon steel Class 4 gas lift | |
| Tilt mechanism | 2.5mm thick steel butterfly plate | |
| Five-star base | Reinforced nylon composite | |
| Casters | 60mm diameter nylon twin-wheel casters | |
| Internal seat frame | 1.2mm thick stamped steel | |
| Seam stitch pitch | 8 stitches per 30mm | |
| Seat Internal Support Board Thickness | 14 mm bent plywood or equivalent support board |
Adjustment / rotation / tilt / mobility / storage features
| Height adjustment | 100mm vertical stroke via side-activated gas lift lever | |
|---|---|---|
| 360-degree swivel | Full rotation enabled by central gas lift and base assembly | |
| Recline function | 135-degree maximum back tilt with tension adjustment | |
| Tilt lock | Single-position upright lock for focused work | |
| Mobility | Smooth rolling on hard floors and low-pile carpet via twin-wheel casters | |
| Lumbar support | Contoured structured mesh panel aligned to lower back | |
| Fixed arm support | Stable T-armrests at 180mm above seat for forearm rest | |
| 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
| Open office workstations | Fits standard desk heights for daily employee task work | |
|---|---|---|
| Home office study spaces | Compact footprint suitable for small home work areas | |
| Conference room seating | Fixed armrests and swivel function suit meeting room use | |
| Training room setups | Lightweight mobile design supports reconfigurable learning spaces | |
| Height range 1500-1850mm users | 520 mm seat height accommodates most adult user heights | |
| 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 dimensional and safety requirements for office task chairs | |
|---|---|---|
| EN 1335-2:2018 | Applies to strength, durability and stability requirements | |
| EN 1335-3:2009 | Applies to test methods for verifying office chair compliance |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Applies to general-purpose office chair safety and durability requirements | |
|---|---|---|
| ANSI/BIFMA X5.11-2015 | Applies to large occupant office chair load rating requirements | |
| Five-star base static load rating | 1136 kg |
Standards applicable to China-market projects
| GB/T 3326-2016 | Applies to size measurement and dimensional tolerance of office chairs | |
|---|---|---|
| GB/T 10357.3-2013 | Applies to mechanical strength and durability testing for office chairs | |
| GB 18584-2001 | Applies to indoor decoration material limits for formaldehyde emission |
This product must meet the following technical requirements: 1. GB/T 3326-2016: Applies to size measurement and dimensional tolerance of office chairs; 2. GB/T 10357.3-2013: Applies to mechanical strength and durability testing for office chairs; 3. GB 18584-2001: Applies to indoor decoration material limits for formaldehyde emission; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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