| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 700 x 620 x 1280 mm | |
|---|---|---|
| Seat height adjustment range | 550 mm | |
| Seat depth | 500 mm | |
| Backrest width | 380 mm | |
| Seat width | 500 mm | |
| Five-star base span | 700 mm | |
| Headrest height | 740 mm | |
| Backrest frame width | 500 mm | |
| Retracted footrest length | 300 mm | |
| Armrest height above seat | 220 mm | |
| Caster diameter | 60 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 | 150 kg | |
|---|---|---|
| Net weight | 18 kg | |
| Base static load capacity | 1000 kg | |
| Seat foam density | 45 kg/m³ | |
| Seat foam thickness | 50 mm | |
| Back mesh tensile strength | 200 N/5cm | |
| Recline lock angle | 135° | |
| 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 | Light grey breathable polyester mesh | |
|---|---|---|
| Seat cushion | High-density cut polyurethane foam with mesh cover | |
| Back frame and headrest shell | White fiber-reinforced polypropylene | |
| Armrests | Fixed curved PP armrests with integrated smooth surface | |
| Five-star base | Chrome-plated polished steel | |
| Gas lift cylinder | Class 3 black steel pneumatic lift | |
| Casters | Black dual-wheel nylon casters | |
| Footrest | PP support surface with steel sliding rail | |
| Tilt mechanism | 2 mm thick steel locking chassis | |
| Seat Internal Support Board Thickness | 14 mm bent plywood or equivalent support board | |
| Backrest Internal Frame Thickness | 14 mm bent plywood/composite reinforced frame | |
| Five-star Base Material Thickness | Metal base wall 3.5 mm; diameter 700 mm |
Adjustment / rotation / tilt / mobility / storage features
| Pneumatic seat height adjustment | 100 mm stroke via under-seat lever, locks at any height within range | |
|---|---|---|
| 360-degree swivel rotation | Full rotation enabled by central gas lift and swivel base | |
| Recline tilt with lock | Back tilts up to 135 degrees, locks at upright and reclined positions | |
| Retractable pull-out footrest | Slides out from under seat to support legs during recline, retracts flush | |
| Height-adjustable headrest | Curved padded headrest adjusts vertically to support neck | |
| Integrated X-frame lumbar support | Rigid back frame provides contoured spinal support without separate cushion | |
| Smooth-rolling casters | Dual-wheel casters roll on hard floors and low-pile carpet | |
| Tilt tension adjustment | Knob under seat adjusts recline resistance to match user weight | |
| 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
| Home office workstation | Suitable for long hours of computer work at home, with recline and footrest for breaks | |
|---|---|---|
| Open plan office task seating | Suitable for employee workstations, breathable mesh for all-day comfort | |
| Study room desk chair | Suitable for student study and computer use, adjustable height fits standard desk heights | |
| Conference room temporary seating | Suitable for meeting rooms, swivel function allows easy movement during discussions | |
| Gaming and casual computer use | Suitable for casual gaming, recline and footrest support relaxed seating positions | |
| 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 work chairs | |
|---|---|---|
| EN 1335-2:2018 | Applies to strength, durability and stability test methods for office chairs |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Applies to general-purpose office chair safety and performance test standards | |
|---|---|---|
| Caster rolling durability | 200000 cycles |
Standards applicable to China-market projects
| GB/T 3326-2016 | Applies to dimensional measurement requirements for office desks and chairs | |
|---|---|---|
| GB/T 38039-2019 | Applies to stability, strength and durability requirements for office swivel chairs |
This product must meet the following technical requirements: 1. GB/T 3326-2016: Applies to dimensional measurement requirements for office desks and chairs; 2. GB/T 38039-2019: Applies to stability, strength and durability requirements for office swivel chairs; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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