| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 740 x 830 x 1250 mm | |
|---|---|---|
| Seat width | 520 mm | |
| Seat depth | 550 mm | |
| Adjustable seat height | 600 mm | |
| Backrest height | 820 mm | |
| Backrest width | 520 mm | |
| Armrest height from seat | 220 mm | |
| Five-star base diameter | 690 mm | |
| Caster wheel diameter | 50 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
| Recommended user weight capacity | 125 kg | |
|---|---|---|
| Net chair weight | 27 kg | |
| Gas lift cycle durability | 300000 cycles | |
| Base static load rating | 140 kg | |
| Seat foam density | 45 kg/m³ | |
| Seat foam rebound rate | 40% | |
| Cushion foam thickness | 100 mm | |
| Backrest foam thickness | 80 mm | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% | |
| Back Foam Density Reference | 38 kg/m³ |
Core acceptance fields · Panels / hardware / frame / upholstery
| Seat and back upholstery | 1.0mm thick black PU faux leather | |
|---|---|---|
| Upholstery abrasion resistance | 50000 double rubs | |
| Armrest construction | Padded faux leather wrap with chrome-plated steel trim | |
| Internal seat frame | 1.2mm thick stamped steel | |
| Five-star base | 1.5mm thick chrome-plated steel tube | |
| Caster material | Hard nylon with PU tread | |
| Internal padding | Molded high-resilience PU foam | |
| Back tuft accent | Brushed metal button detail | |
| 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 | |
| Gas-lift Engineering Specification | Recommended Class 4; outer tube 50 mm; stroke 100 mm |
Adjustment / rotation / tilt / mobility / storage features
| Seat height adjustment | Pneumatic gas lift with 80mm stroke | |
|---|---|---|
| Swivel function | 360-degree full rotation | |
| Tilt mechanism | Center tilt with 15-degree maximum recline | |
| Tilt lock | Single-position upright lock | |
| Mobility | Dual-wheel casters for rolling on hard/soft floors | |
| Armrest function | Fixed wide padded armrests for forearm support | |
| Back support | Contoured high-back with lumbar tuft support for full spinal contact | |
| 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 | Fits executive desks for long-duration management and desk work | |
|---|---|---|
| Home office workspace | Suitable for high-back support during full workdays at home | |
| Boardroom seating | Matches formal boardroom decor for meeting room use | |
| Small business management offices | Suitable for manager and supervisor workstations | |
| Reception private meeting rooms | Provides formal comfortable seating for small 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 chair dimensional safety and ergonomic requirements | |
|---|---|---|
| EN 1335-2:2018 | Applies to office chair structural strength and durability performance | |
| EN 1335-3:2009 | Applies to office chair stability and safety testing methods |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Applies to general-purpose office chair performance and safety requirements | |
|---|---|---|
| ANSI/BIFMA X5.11-2015 | Applies to office chair static load capacity testing guidelines |
Standards applicable to China-market projects
| GB/T 3326-2016 | Applies to office chair dimensional accuracy and stability testing | |
|---|---|---|
| GB 18580-2017 | Applies to formaldehyde emission limits for panel components in furniture | |
| GB/T 10357.3-2013 | Applies to strength and durability testing for office chair seating |
This product must meet the following technical requirements: 1. GB/T 3326-2016: Applies to office chair dimensional accuracy and stability testing; 2. GB 18580-2017: Applies to formaldehyde emission limits for panel components in furniture; 3. GB/T 10357.3-2013: Applies to strength and durability testing for office chair seating; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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