| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 680 x 650 x 1280 mm | |
|---|---|---|
| Seat width | 500 mm | |
| Seat depth | 480 mm | |
| Seat height range (floor to seat top) | 500 mm | |
| Backrest height (seat top to back top) | 720 mm | |
| Backrest width | 520 mm | |
| Headrest dimensions | 280 x 120 mm | |
| Armrest height (seat to arm top) | 210 mm | |
| 5-star base diameter | 620 mm | |
| Caster 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
| Net weight | 16 kg | |
|---|---|---|
| Recommended maximum user weight | 120 kg | |
| Seat foam density | 40 kg/m³ | |
| Backrest tilt angle range | 12° | |
| Gas lift stroke length | 100 mm | |
| Caster rolling durability | 100000 cycles | |
| Maximum backrest tilt angle | 12° | |
| Backrest mesh tensile strength | 200 N | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% | |
| Back Foam Density Reference | 38 kg/m³ |
Core acceptance fields · Panels / hardware / frame / upholstery
| Backrest mesh | High-tensile woven nylon mesh with black border trim, stretched over rigid plastic frame | |
|---|---|---|
| Seat cushion | Molded polyurethane foam core upholstered in black woven fabric with stitched edge finish | |
| Backrest frame | Injection-molded nylon reinforced plastic outer frame with internal support ribs | |
| Armrest assembly | Hard nylon plastic arm supports with integrated upper pads, fixed to seat frame side brackets | |
| Gas lift column | Black powder-coated steel pneumatic cylinder with plastic adjustment collar | |
| 5-star base | One-piece injection-molded black nylon base with five radial legs and caster sockets | |
| Casters | Black nylon twin-wheel casters with hard plastic rolling surfaces and metal axle pins | |
| Tilt mechanism | Steel plate synchronous tilt mechanism with plastic control levers under seat | |
| Backrest outer frame | Injection-molded glass-fiber reinforced nylon frame with internal structural support ribs | |
| Headrest support | Black plastic sliding bracket with steel positioning rod, mounted to the top of the backrest frame | |
| 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 height adjustment via left-side lever, 100mm total vertical travel, adjustable while seated | |
|---|---|---|
| Backrest tilt function | Synchronous recline mechanism with up to 12° backward tilt from upright, lockable in upright position | |
| Headrest adjustment | Height-adjustable headrest mounted on central sliding bracket above backrest | |
| Swivel function | 360° full rotation around central gas lift axis, enabled by top and bottom bearing assemblies | |
| Mobility function | Five twin-wheel casters allow rolling on flat office floors, with 50mm wheel diameter for low rolling resistance | |
| Fixed armrest support | Rigid fixed-height armrests provide forearm support at 210mm above seat surface, non-adjustable in height or width | |
| Lumbar support | Built-in passive lumbar contour shaped into mesh backrest, no active adjustment mechanism | |
| 360° swivel function | Full 360° rotation around the central gas lift axis, enabled by top and bottom steel bearing assemblies | |
| Floor mobility function | Five twin-wheel casters enable smooth rolling on flat office floors, with 50mm wheel diameter for low rolling resistance | |
| Passive lumbar support | Built-in passive lumbar contour shaped into the mesh backrest lower section, providing ergonomic spinal support without active adjustment | |
| Tilt tension adjustment | Rotary tension knob under the front of the seat adjusts backrest recline resistance to match user body weight | |
| Recline Angle / Lock Reference | 125° with 3 suggested lock positions |
Verified carton / gross weight / assembly / loading data
| Packing configuration | 1 piece per carton, flat-pack disassembled state | |
|---|---|---|
| Carton dimensions | 700 x 350 x 650 mm | |
| Gross weight per carton | 18 kg | |
| Cubic volume per carton | 0.16 CBM | |
| Assembly time (single person) | 30 minutes | |
| 20ft container loading quantity | 200 pieces | |
| 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
| Corporate open-plan office | Suitable for staff workstations in open office environments, 8-hour daily commercial use | |
|---|---|---|
| Executive private office | Suitable as a visitor or primary seating option for small executive offices | |
| Home office workspace | Suitable for remote work setups in residential home offices | |
| Conference and meeting rooms | Suitable for long-duration meeting room seating around conference tables | |
| Co-working space shared seating | Suitable for hot-desk and shared seating areas in co-working facilities | |
| Administrative staff workstations | Suitable for full-time administrative staff performing computer-based tasks daily | |
| 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
| Office furniture - Office chairs - Requirements for safety, strength and durability | EN 1335:2020, applicable to structural safety and static/dynamic load testing | |
|---|---|---|
| Ergonomics of the thermal environment - Office furniture | EN 1728:2014, applicable to seat and backrest dimension and adjustment assessment | |
| Furniture - Chairs - Determination of strength and stability | EN 1728:2014, applicable to seat, backrest and armrest strength and stability assessment |
US and Canada office-furniture standards
| Office chairs - Tests for stability | ANSI/BIFMA X2021 Section 8, applicable to chair stability under forward/side/rear load conditions | |
|---|---|---|
| Office chairs - Tests for strength and durability | ANSI/BIFMA X2021 Section 10, applicable to seat, backrest, armrest and base cycle and static load testing |
Standards applicable to China-market projects
| General technical requirements for office chairs | GB/T 35607 applicable to structural strength, stability and durability verification of this office chair category | |
|---|---|---|
| Formaldehyde emission limit | GB 18584 applicable to wood-based panel components inside seat and back structure | |
| Ergonomic requirements for office chair | GB/T 39223.3 applicable to seat/back dimensions and adjustment range evaluation | |
| Formaldehyde emission limit for wood-based furniture | GB 18584, applicable to formaldehyde release control of internal plastic/wood composite components | |
| Ergonomic requirements for office seating - Part 3: Office chairs | GB/T 39223.3, applicable to evaluation of seat/back dimensions and adjustment range compliance | |
| Office furniture chairs - Measurement of dimensions and physical properties | GB/T 10357.3, applicable to dimensional accuracy and physical performance testing of the chair |
This product must meet the following technical requirements: 1. General technical requirements for office chairs: GB/T 35607 applicable to structural strength, stability and durability verification of this office chair category; 2. Formaldehyde emission limit: GB 18584 applicable to wood-based panel components inside seat and back structure; 3. Ergonomic requirements for office chair: GB/T 39223.3 applicable to seat/back dimensions and adjustment range evaluation; 4. Formaldehyde emission limit for wood-based furniture: GB 18584, applicable to formaldehyde release control of internal plastic/wood composite components; 5. Ergonomic requirements for office seating - Part 3: Office chairs: GB/T 39223.3, applicable to evaluation of seat/back dimensions and adjustment range compliance; 6. Office furniture chairs - Measurement of dimensions and physical properties: GB/T 10357.3, applicable to dimensional accuracy and physical performance testing of the chair; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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