| Submitted | Field | Original | 修改后参数 | Note / Status |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall assembled dimensions | 640W x 650D x 1250H mm | |
|---|---|---|
| Seat width | 500 mm | |
| Seat depth | 480 mm | |
| Seat height range | 520mm | |
| Backrest height (from seat surface) | 700 mm | |
| Backrest width | 470 mm | |
| Headrest dimensions | 300W x 160H mm | |
| Armrest height above seat | 220 mm | |
| Armrest width between pads | 490 mm | |
| Five-star base diameter | 640 mm | |
| Caster diameter | 50 mm | |
| Seat cushion thickness | 60 mm | |
| Clear width between armrest pads | 490 mm | |
| Five-star base outer diameter | 640 mm | |
| Lumbar support pad height from seat surface | 180 mm | |
| Finished Seat Cushion Thickness | 90mm |
Net weight / load capacity / users / durability
| Net weight range | 17kg | |
|---|---|---|
| Recommended maximum user weight | 120 kg | |
| Seat static load capacity | 136 kg | |
| Backrest tilt angle range | 120 degrees | |
| Caster rolling durability | ≥40000 cycles | |
| Gas lift cycle life | ≥100000 height adjustments | |
| Recommended daily usage duration | 8 hours | |
| Seat foam density | 45kg/m³ | |
| Net product weight | 17 kg | |
| Backrest recline range | 120 degrees from vertical |
Core acceptance fields · Panels / hardware / frame / upholstery
| Backrest mesh | Breathable black polyester mesh | |
|---|---|---|
| Seat cushion core | Molded high-resilience polyurethane foam | |
| Backrest and headrest structural frame | Reinforced black polyamide (PA66) nylon, 3mm wall thickness, with embedded 1.5mm steel support strips along backrest side rails for structural rigidity | |
| Armrests | Fixed rigid polypropylene armrests with flat padded top surface | |
| Adjustable lumbar support | Molded curved PP lumbar pad with mesh overlay | |
| Headrest | Curved nylon frame with matching mesh surface | |
| Five-star base | Black reinforced nylon (PA) five-prong base | |
| Gas lift | Chrome-plated steel Class 3 pneumatic gas lift | |
| Casters | Black polyurethane (PU) dual-wheel swivel casters | |
| Control mechanism | 2.5mm thick steel tilt chassis with tension adjustment knob | |
| Backrest upholstery | Breathable woven black polyester mesh, 1.2mm strand thickness, tensioned over nylon frame to provide 15mm lumbar give without sagging | |
| Control mechanism chassis | 2.5mm thick cold-rolled steel tilt chassis, powder-coated black finish, fitted with 8mm steel height adjustment paddle and 35mm diameter rotary tension adjustment knob |
Adjustment / rotation / tilt / mobility / storage features
| Pneumatic seat height adjustment | Operated via right-side under-seat paddle, 100mm vertical stroke to adjust seat from 520mm floor height | |
|---|---|---|
| Backrest tilt with tension control | Back tilts up to 30 degrees rearward, tilt resistance adjusted via rotary knob under front edge of seat, locks in upright working position | |
| Adjustable lumbar support | Depth-adjustable lower back pad operated via side dial, 30mm forward travel to customize lower back pressure | |
| 360-degree swivel rotation | Full rotational movement around central gas lift axis, no rotation lock for easy workspace access | |
| Height-adjustable headrest | Vertical height adjustment of 60mm and 15-degree angular tilt to support neck in upright and reclined positions | |
| Smooth mobility via dual casters | Five swivel casters allow omni-directional movement on hard flooring and low-pile commercial carpet, no brake function on visible casters | |
| Fixed forearm support | Static T-shaped armrests positioned 220mm above the seat surface to support forearms during keyboard and mouse work, no height, width, depth or pivot adjustment available on this model | |
| Backrest synchro tilt with tension control | Backrest tilts 30 degrees rearward from 90-degree upright position to maximum 120-degree recline, tilt resistance adjustable via front-mounted rotary knob to match user weight 120kg, locks in fixed upright working position | |
| Depth-adjustable lumbar support | Operated via side rotary dial on the right backrest frame, provides 30mm forward travel of the lumbar pad to customize lower back pressure for varying spine curvature, no height adjustment on visible model | |
| Height and angle adjustable headrest | Provides 60mm vertical height adjustment and 15-degree angular tilt range, locks via friction joint, to support the cervical neck in both upright working and reclined resting positions | |
| Omni-directional mobility | Five dual-wheel swivel casters allow 360-degree omni-directional movement on hard flooring and low-pile commercial carpet, rolling resistance ≤15N per caster, no brake function fitted on the visible model | |
| Tilt lock function | Single-position tilt lock activated via secondary under-seat lever, secures backrest in fully upright 90-degree position for focused task work, no multi-position lock visible on this model |
Verified carton / gross weight / assembly / loading data
| Number of shipping packages | 1 carton | |
|---|---|---|
| Shipping carton dimensions | 830 x 620 x 340 mm | |
| Gross shipping weight | 19kg | |
| Shipping volume per unit (CBM) | 0.175 CBM | |
| Assembly time required | 25minutes | |
| 20ft GP container loading quantity | 200 units | |
| 40ft HQ container loading quantity | 480 units | |
| Shipping volume per unit | 0.175 CBM | |
| Required assembly time | 25 minutes | |
| Packaging protection | 50mm thick EPS foam corner protection, 0.15mm thick PE dust bag over chair components, printed corrugated carton with 150lb edge crush test rating |
Recommended spaces / users / usage modes
| Open-plan office workstations | Sized for standard 1200x600mm office desks, breathable mesh back supports 8 hour daily seated work for general office staff | |
|---|---|---|
| Home office workspaces | Compact footprint fits small home desks, swivel and mobility works for combination work and study use | |
| Conference and meeting rooms | Neutral black finish and professional appearance matches standard office furniture, swivel function supports easy interaction in meeting settings | |
| Cubicle and call center environments | Durable construction and lumbar support suitable for prolonged seated work for administrative and customer service roles | |
| Height-adjustable desk compatibility | 520mm seat height range pairs with sit-stand desks for users 185cm tall, maintaining ergonomic elbow alignment | |
| Height-adjustable sit-stand desk configurations | 520mm seat height adjustment range pairs with 1250mm sit-stand desk height ranges, maintaining ergonomic 90-degree elbow alignment for users 185cm tall during both seated and semi-seated work | |
| Training room seating | Fixed armrests and simple adjustment controls reduce user error in shared-use training environments, easy glide casters allow quick reconfiguration of room layouts between sessions | |
| Recommended Matching Desk Size | 2.4m executive desk |
European market access and chemical requirements
| EN 1335-1:2020 | Applicable European standard for office work chairs, defines dimensional, safety and strength requirements for task chairs used in office environments | |
|---|---|---|
| EN 1335-2:2018 | Applicable European safety standard, specifies structural stability, strength and durability test methods for office chairs | |
| EN 1021-1:2014 | Applicable upholstered furniture flammability standard, specifies cigarette ignition resistance requirements for seating fabrics and foam |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Applicable North American standard for office chairs, defines performance and test requirements for general-purpose office task chairs including load, durability and stability |
|---|
Standards applicable to China-market projects
| GB/T 3326-2016 | Applicable standard for office furniture: chair dimensions, specifies critical measurement methods for seat height, depth, backrest size for procurement acceptance | |
|---|---|---|
| GB/T 10357.3-2013 | Applicable test standard for chair strength and durability, specifies static load, impact and fatigue test requirements for office seating | |
| GB 18584-2001 | Applicable indoor decoration material standard, limits formaldehyde and heavy metal content in furniture components for indoor office use |
This product must meet the following technical requirements: 1. GB/T 3326-2016: Applicable standard for office furniture: chair dimensions, specifies critical measurement methods for seat height, depth, backrest size for procurement acceptance; 2. GB/T 10357.3-2013: Applicable test standard for chair strength and durability, specifies static load, impact and fatigue test requirements for office seating; 3. GB 18584-2001: Applicable indoor decoration material standard, limits formaldehyde and heavy metal content in furniture components for indoor office use; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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