| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 620 x 600 x 1010 mm | |
|---|---|---|
| Seat width | 500 mm | |
| Seat depth | 480 mm | |
| Seat height range | 500 mm | |
| Backrest width | 480 mm | |
| Backrest height | 460 mm | |
| Armrest height above seat | 210 mm | |
| Armrest width | 60 mm | |
| 5-star base diameter | 600 mm | |
| Caster diameter | 50 mm | |
| Gas lift outer tube 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 maximum user weight | 120 kg | |
|---|---|---|
| Chair net weight range | 12 kg | |
| Seat foam density | 30 kg/m³ | |
| Back mesh abrasion resistance reference | 30000 cycles | |
| Caster rolling durability reference | 100000 cycles | |
| Gas lift cycle reference | 100000 cycles | |
| Recommended maximum user static load | 120 kg | |
| Back mesh Martindale abrasion resistance | 30000 cycles | |
| Gas lift cycle rating | 100000 cycles | |
| Seam tensile strength | 200 N |
Core acceptance fields · Panels / hardware / frame / upholstery
| Backrest frame | Black hard plastic injection-molded frame supporting the mesh panel | |
|---|---|---|
| Backrest support surface | Tensioned woven black mesh with breathable grid structure | |
| Seat cushion | Foam-padded seat upholstered in solid black fabric | |
| Armrests | Fixed one-piece black hard plastic armrests with open rectangular side profile | |
| Gas lift column | Steel gas lift cylinder with black outer casing and chrome-plated inner rod section | |
| Tilt mechanism internal plate | 2.5 mm thick cold-rolled steel plate forming the core of the tilt mechanism | |
| 5-star base | Black 5-point base with metal inner structure and matte black outer finish | |
| Casters | Twin-wheel black casters with light-colored tread ring, 5 pieces total | |
| Seat inner frame | Plywood or steel inner support frame inside seat cushion | |
| 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
| Seat height adjustment | Pneumatic height adjustment via right-side lever, with 80 mm total vertical stroke range and 500 mm maximum seat height | |
|---|---|---|
| Swivel function | 360-degree continuous rotation around central gas lift axis, supported by 5-point caster base | |
| Seat tilt function | Synchro or knee-tilt recline mechanism with lever-activated lock, limited to 12 degrees of backward tilt from upright | |
| Fixed armrest support | Rigidly mounted plastic armrests on both sides, non-adjustable in height, width or depth | |
| Mobility | 5 twin-wheel casters for rolling on hard and low-pile carpet floors, paired with 600 mm diameter 5-star base for stability | |
| Breathable back support | Tensioned mesh back panel provides passive ventilation and flexing lumbar support without active lumbar adjustment | |
| Weight-activated tilt tension | Self-adjusting or manually set tilt resistance proportional to user weight, controlled through internal mechanism spring | |
| Full swivel function | 360-degree continuous smooth rotation around central gas lift axis, supported by 5-point caster base | |
| Seat tilt recline | Knee-tilt recline mechanism with lever-activated locking, providing 12 degrees of backward tilt from the upright position | |
| Fixed armrest load bearing | Rigidly mounted plastic armrests on both sides, supporting 80 kg vertical static load per arm with no height, width or depth adjustment | |
| Rolling mobility | 5 twin-wheel 50 mm diameter casters for rolling on hard flooring and low-pile carpet, paired with 600 mm diameter 5-star base for anti-tip stability | |
| Tilt tension adjustment | Manual tilt resistance adjustment via under-seat rotary knob, matching user weight range up to 120 kg |
Verified carton / gross weight / assembly / loading data
| Packing units per carton | 1 unit per carton | |
|---|---|---|
| Carton dimensions | 650 x 520 x 350 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
| General office workstations | Suitable for open-plan and individual office workstations with standard 760 mm height desks, supporting daily 8-hour seated computer work | |
|---|---|---|
| Staff and administrative use | Targeted at daily staff, administrative and clerical users up to 120 kg body weight seeking basic ergonomic support and breathability | |
| Meeting and training rooms | Appropriate for meeting rooms and training areas requiring stackable or mobile seating with uniform black appearance and easy maneuverability | |
| Home office use | Suitable for home office setups with standard desk heights, offering compact footprint and tool-light assembly for end users | |
| Co-working and shared spaces | Ideal for co-working environments where durable, easy-to-clean and visually consistent seating is required across multiple desks | |
| Temporary workstations | Suitable for temporary project workstations and hot-desking areas with high user turnover, requiring low maintenance and quick height adjustment | |
| Small and medium enterprise offices | Recommended for SME office bulk procurement with balanced cost performance and basic ergonomic compliance | |
| Recommended Matching Desk Size | 2.4 m executive desk |
EU Market Access Requirements* EN Standards
| EN 1335-1:2020 | Applicable European office chair standard Part 1 for dimensions, safety and strength requirements, suitable for commercial office use specification | |
|---|---|---|
| EN 1022:2018 | Applicable standard for office chair stability testing, used for tilt and base stability acceptance checks |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2021 | Recommended references: BIFMA compliance | |
|---|---|---|
| BIFMA X5.5-2014 | Applicable standard for office task chair armrest strength and durability evaluation, for acceptance testing planning |
Standards applicable to China-market projects
| GB/T 38608-2020 | Applicable standards and test results require confirmation | |
|---|---|---|
| GB/T 10357.2-2013 | Applicable for seat and back static load testing per furniture mechanics test standard Part 2, for office chair load verification | |
| GB/T 10357.3-2013 | Applicable for office chair armrest and base strength testing per furniture mechanics test standard Part 3 |
This product must meet the following technical requirements: 1. GB/T 38608-2020: Applicable standards and test results require confirmation; 2. GB/T 10357.2-2013: Applicable for seat and back static load testing per furniture mechanics test standard Part 2, for office chair load verification; 3. GB/T 10357.3-2013: Applicable for office chair armrest and base strength testing per furniture mechanics test standard Part 3; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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