| Submitted | Field | Original | 修改后参数 | 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 | 520 mm | |
| Backrest width | 480 mm | |
| Backrest height | 560 mm | |
| Armrest height from seat | 210 mm | |
| Five-star base diameter | 600 mm | |
| Caster diameter | 50 mm | |
| Seat cushion thickness | 80 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 recommended user weight | 120 kg | |
|---|---|---|
| Chair net weight range | 14 kg | |
| Gas lift stroke length | 100 mm | |
| Swivel rotation range | 360 degrees | |
| Seat foam density | 45 kg/m³ | |
| Back mesh abrasion resistance reference | 30000 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 | |
| Five-star Base Static Load Reference | Acceptance target ≥120 kg; chair reference load 150 kg |
Core acceptance fields · Panels / hardware / frame / upholstery
| Backrest frame | Black reinforced nylon plastic frame with integrated lumbar support ridge | |
|---|---|---|
| Backrest surface | Black woven nylon mesh with horizontal stretch structure | |
| Seat cushion upholstery | Black woven polyester fabric cover | |
| Seat cushion filling | Molded high-density polyurethane foam | |
| Inner seat frame | Plywood inner support panel with steel reinforcement brackets | |
| Armrests | Black rigid nylon armrest structure with integrated mounting brackets | |
| Five-star base | Black nylon five-point support base | |
| Gas lift cylinder | Steel pneumatic height adjustment cylinder with black plastic cover | |
| Casters | Black dual-wheel nylon casters with plastic hoods | |
| Tilt mechanism | Steel synchro-tilt or seat-tilt chassis with plastic adjustment lever | |
| Seat Internal Support Board Thickness | 14 mm bent plywood or equivalent support board | |
| Backrest Internal Frame Thickness | 14 mm bent plywood/composite reinforced frame |
Adjustment / rotation / tilt / mobility / storage features
| Seat height adjustment | Pneumatic lift operated by right-side lever, providing 100 mm of vertical travel to adapt to different desk heights | |
|---|---|---|
| 360-degree swivel function | Full continuous rotation around central axis via ball bearing swivel mount on top of gas lift | |
| Seat tilt function | Forward/backward tilt with tension adjustment knob under seat, allowing up to 15 degrees of recline | |
| Tilt lock function | Lever-activated lock to secure seat-back position in upright or partially reclined state | |
| Smooth rolling mobility | 5 dual-wheel casters enabling quiet rolling on hard floors and low-pile carpet surfaces | |
| Fixed lumbar support | Integrated Y-shaped lumbar ridge molded into back frame to support lower back curve | |
| Fixed armrest support | Dual fixed-height armrests with open frame design to support forearms during typing | |
| 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
| Packaging configuration | 1 unit per carton, KD flat-pack design | |
|---|---|---|
| Carton dimensions | 680 x 580 x 320 mm | |
| Gross weight per carton | 16 kg | |
| Volume per carton | 0.126 m³ | |
| Assembly time per unit | 30 minutes | |
| 20ft container load quantity | 280 units | |
| 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 |
Recommended spaces / users / usage modes
| Open-plan office workstation | Suitable for daily 8-hour desk work in open-plan offices, with adjustable height matching standard 760 mm desk heights | |
|---|---|---|
| Home office workspace | Ideal for home office and remote work setups, with compact footprint that fits small desk areas | |
| Conference and meeting rooms | Appropriate for conference room seating around meeting tables, with 360-degree swivel enabling easy orientation toward speakers | |
| Staff training rooms | Suitable for training center and classroom environments, with durable mesh back that provides ventilation during long sessions | |
| Call center seating | Fit for call center and customer support workstations, with lumbar support to reduce fatigue during extended sitting periods | |
| Recommended Matching Desk Size | 2.4 m executive desk | |
| Reference Daily Use Duration | 8 hours/day; confirm by ergonomic testing |
European market access and chemical requirements
| Office chair safety requirements | EN 1335:2020 | |
|---|---|---|
| Office chair dimensional stability | EN 1335:2019 | |
| Upholstered furniture ignition safety | EN 1021:2014 |
US and Canada office-furniture standards
| Office chair general safety standard | ANSI/BIFMA X2021 | |
|---|---|---|
| Caster rolling durability | BIFMA X5.1 Clause 8 |
Standards applicable to China-market projects
| Seat surface stability | GB/T 14724 | |
|---|---|---|
| Wood-based panel formaldehyde emission | GB 18580 | |
| Upholstered furniture flame retardancy | GB 20286 |
This product must meet the following technical requirements: 1. Seat surface stability: GB/T 14724; 2. Wood-based panel formaldehyde emission: GB 18580; 3. Upholstered furniture flame retardancy: GB 20286; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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Open Export ToolThe GUOYOU OC-MB-001 Mid-Back Mesh Ergonomic Office Task Chr presents a streamlined, functional visual profile with a neutral black color scheme that coordinates seamlessly with diverse interior aesthetics. Its structured layout includes a contoured mid-height backrest, padded rectangular seat, dual fixed armrests, and a five-point caster base, creating a compact silhouette suited for standard desk setups. Built with durability and comfort in mind, the chr features a black reinforced nylon plastic backrest frame with an integrated Y-shaped lumbar support ridge, overld with black woven nylon mesh that provides horizontal stretch for adaptive back contact. The seat cushion combines a black woven polyester fabric cover with molded high-density polyurethane foam filling, supported internally by a plywood panel with steel reinforcement brackets. Fixed rigid nylon armrests attach directly to the seat frame, while the base is a black nylon five-point structure fitted with black dual-wheel nylon casters. A steel pneumatic height adjustment cylinder with a black plastic cover connects the seat assembly to the base, pred with a steel tilt chassis operated by adjustment levers. Functionally, the chr delivers core ergonomic and mobility features for dly work use. Pneumatic seat height adjustment, controlled by a right-side lever, offers vertical travel to accommodate varying desk heights. A seat tilt function with tension adjustment allows recline, complemented by a lever-activated tilt lock to secure the seat-back position. The chr enables full 360-degree swivel rotation, and its five dual-wheel casters support smooth, quiet movement across hard floors and low-pile carpet. The fixed integrated lumbar ridge mntns lower back support during extended sitting, and fixed-height open-frame armrests provide forearm support for typing tasks. This task chr fits a wide range of commercial and residential spaces. It works well for open-plan office workstations, where its mid-back design fits under standard cubicle partitions and desk returns, and its adjustable height aligns with common desk heights for 8-hour dly use. It serves as practical seating for home office setups, with a compact footprint that works in small desk areas. It is also appropriate for conference rooms, where uniform fixed-arm design supports row seating and swivel functionality lets users turn toward speakers, and for staff trning rooms, where caster mobility allows quick layout reconfiguration and ventilated mesh back enhances comfort during long sessions. For call center and customer support workstations, its lumbar support reduces fatigue from prolonged sitting. For procurement planning, the chr ships in a flat-pack design with one unit per carton, to optimize shipping volume. Single-person assembly with basic tools is strghtforward with standard instructions. Bulk shipping configurations work with standard contner logistics for larger orders. The maximum recommended user weight aligns with standard mid-range office chr construction, supporting broad user population suitability.
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