| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 620 x 640 x 1130 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
| Maximum static load capacity | 120 kg | |
|---|---|---|
| Net product weight | 13 kg | |
| Seat cushion foam density | 45 kg/m³ | |
| Gas lift class rating | Class 3 | |
| Caster rolling durability | 40000 cycles | |
| Tilt mechanism lock angle | 12 degrees backward | |
| 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 |
Core acceptance fields · Panels / hardware / frame / upholstery
| Backrest mesh | Breathable black polyester mesh stretched over nylon frame | |
|---|---|---|
| Seat cushion core | 40 mm thick high-resilience polyurethane foam | |
| Seat surface upholstery | Black woven polyester fabric with 30000 double-rub abrasion rating | |
| Armrest construction | Integrated fixed loop armrests with black matte nylon finish | |
| Height adjustment mechanism | Chrome-plated steel Class 3 gas lift with 100 mm stroke | |
| Base structure | 320 mm radius black nylon five-star base with 2.5 mm wall thickness | |
| Caster construction | 50 mm diameter black polyurethane dual-wheel casters | |
| Tilt chassis | 2.5 mm thick steel tilt mechanism with tension adjustment knob | |
| 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 | |
| Tilt Mechanism Plate Thickness | 2.5 mm cold-rolled steel |
Adjustment / rotation / tilt / mobility / storage features
| Seat height adjustment | 100 mm vertical travel via pneumatic gas lift activated by side lever | |
|---|---|---|
| Backrest tilt function | 12 degree backward free-float tilt with adjustable tension control | |
| 360-degree swivel rotation | Full 360 degree horizontal rotation around central gas lift axis | |
| Smooth rolling mobility | Dual-wheel casters designed for both hard flooring and low-pile carpet | |
| Fixed arm support | Integrated fixed loop armrests positioned at 210 mm above seat surface for forearm support | |
| Weight-activated tilt tension | Automatic tension calibration for user weight between 120 kg | |
| 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
| Gross shipping weight | 15 kg | |
|---|---|---|
| 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-plan office workstations | Suitable for 8-hour daily desk work at standard 760 mm office desks | |
|---|---|---|
| Home office study spaces | Compact 620 mm width fits small home work areas without excessive footprint | |
| Conference and meeting rooms | Neutral black finish and mid-back support suit short to medium duration meetings | |
| Shared hot-desking environments | Durable mesh and nylon construction resists frequent user turnover wear | |
| 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 | Applicable standard for office chair dimensional, strength and stability requirements | |
|---|---|---|
| EN 1022:2018 | Applicable standard for domestic and contract seating stability testing |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Applicable standard for general-purpose office chair performance and safety | |
|---|---|---|
| ANSI/BIFMA X5.11-2015 | Applicable standard for office chair weight capacity verification up to 136 kg |
Standards applicable to China-market projects
| GB 28007-2011 | Applicable standard for safety of caster-equipped office seating for adult use |
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This product must meet the following technical requirements: 1. GB 28007-2011: Applicable standard for safety of caster-equipped office seating for adult use; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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