| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| overall dimensions | 620 x 600 x 1080 mm | |
|---|---|---|
| seat width | 500 mm | |
| seat depth | 480 mm | |
| seat height range | 540 mm | |
| backrest height | 620 mm | |
| backrest width | 500 mm | |
| armrest height from seat | 220 mm | |
| armrest overall width | 620 mm | |
| 5-star base diameter | 680 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
| recommended user weight capacity | 120 kg | |
|---|---|---|
| net weight reference | 18 kg | |
| gas-lift stroke | 100 mm | |
| swivel rotation | 360 degrees | |
| tilt lock positions | 3 positions | |
| caster rolling durability | 100000 cycles | |
| recline angle range | 15 degrees | |
| recommended maximum user weight capacity | 120 kg | |
| gas-lift total stroke length | 100 mm | |
| full swivel rotation range | 360 degrees |
Core acceptance fields · Panels / hardware / frame / upholstery
| seat and backrest upholstery | Black smooth faux leather (PVC/PU blend) surface with stitched edges | |
|---|---|---|
| seat cushion core | Dense polyurethane foam pad encased in upholstery | |
| backrest core | Molded foam over plywood or hard board inner frame | |
| armrests | Black plastic or nylon arm supports with hard top pads, fixed to seat frame | |
| gas lift cylinder | Steel gas spring with black outer sleeve, SGS Class 3 reference grade | |
| 5-star base | Black powder-coated metal (steel) 5-leg structure | |
| casters | Black nylon/PU twin-wheel casters with metal axle pins | |
| seat tilt mechanism | 4 mm thick stamped steel plate mechanism with black painted finish, mounted to underside of seat frame with tension adjustment spring | |
| thread and stitching | Bonded polyester thread with uniform seam pitch of 5stitches per inch | |
| backrest inner frame | 12 mm thick multi-ply plywood board core, wrapped with 30 kg/m³ polyurethane foam padding under upholstery | |
| armrest assembly | Black reinforced nylon arm support brackets fixed to seat frame, topped with 15 mm thick hard PU arm pads | |
| 5-star base frame | 2.0 mm thick cold-rolled steel 5-leg structure with matte black powder-coated finish |
Adjustment / rotation / tilt / mobility / storage features
| seat height adjustment | Pneumatic gas-lift adjustment operated by right-side lever, with 100 mm total stroke | |
|---|---|---|
| swivel function | 360-degree continuous rotation around central column, supported by steel ball-bearing race | |
| tilt recline | Backrest and seat tilt synchronously backward up to 15 degrees, with lockable positions | |
| mobility | 5 twin-wheel casters enable smooth rolling on hard and low-pile carpet surfaces | |
| armrest support | Fixed-position armrests provide stable forearm support at 220 mm above seat level | |
| weight distribution | 5-point base geometry distributes 120 kg user load evenly across five legs and casters | |
| full swivel rotation | 360-degree continuous rotation around central column, supported by steel ball-bearing race in the tilt mechanism base | |
| synchronous tilt recline | Seat and backrest tilt backward in synchronized ratio up to 15 degrees from upright, with 3 discrete lockable positions | |
| tilt tension adjustment | Rotary tension knob under front of seat adjusts tilt resistance to match user body weight, with 5-level tension range | |
| fixed armrest support | Rigid fixed-position armrests provide stable forearm support at 220 mm above seat level, with 250 mm long pad surface for arm resting | |
| multi-surface mobility | 5 twin-wheel PU casters enable low-resistance rolling on hard floors and low-pile carpets, with 360-degree caster swivel for easy maneuvering | |
| stable load distribution | 5-point symmetrical base geometry distributes 120 kg maximum user load evenly across five legs and casters to prevent tipping |
Verified carton / gross weight / assembly / loading data
| packing configuration | 1 chair per carton, flat-packed in knock-down form | |
|---|---|---|
| carton dimensions | 650 x 550 x 350 mm | |
| gross weight per carton | 20 kg | |
| carton volume (CBM) | 0.126 m³ | |
| assembly time | 30 minutes per unit | |
| 20 ft container loading quantity | 260 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
| corporate office workstation | Suitable for individual staff workstations in open-plan or closed offices; mid-back design balances support and space efficiency | |
|---|---|---|
| meeting and conference rooms | Appropriate for conference table seating; clean upholstered appearance suits formal meeting environments | |
| home office setup | Fits home office desks from 1600 mm width; adjustable height accommodates typical desk heights of 760 mm | |
| managerial assistant stations | Suitable for administrative staff positions requiring 6 hour daily seated use; tilt function provides light posture variation | |
| co-working space hot-desking | Durable swivel and height-adjustment features support multi-user shared desk environments with quick fit adjustment | |
| corporate open-plan workstation | Suitable for individual full-time staff workstations in open-plan offices; mid-back design provides sufficient lumbar support while maintaining aisle space efficiency | |
| co-working shared hot-desking | Durable swivel and height-adjustment features support multi-user shared desk environments; quick lever adjustment allows users to set proper height in seconds | |
| administrative assistant stations | Suitable for administrative and front-desk staff positions requiring frequent seated work and quick movement; tilt function provides light posture variation to reduce fatigue during long shifts |
EU Market Access Requirements* EN Standards
| EN 1335-1:2020 | Applicable for office chairs – Part 1: dimensions – determination of seat, backrest and arm dimensions | |
|---|---|---|
| EN 1335-2:2019 | Applicable for office chairs – Part 2: safety requirements – structural strength and stability testing reference | |
| EN 1335-3:2009 | Applicable for office chairs – Part 3: test methods for strength, durability and stability |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2024 | Applicable standard for general-purpose office chairs – tests for stability, strength, durability and cycle life | |
|---|---|---|
| ANSI/BIFMA X5.11-2020 | Applicable for office chair caster performance testing – rolling resistance and durability | |
| BIFMA G1-2021 | Applicable ergonomic guideline for office seating workstation fit |
Standards applicable to China-market projects
| GB/T 3326-2016 | Applicable for furniture – chairs and stools – determination of strength, durability and stability; reference standard for office chair structural testing | |
|---|---|---|
| GB/T 19001-2016 | Applicable for quality management system certification of manufacturing process; not a product-specific approval | |
| GB 28007-2011 | Reference safety standard for children's furniture does not apply; product is intended for adult office use | |
| GB/T 28204-2011 | Applicable for office furniture – office chair safety technical requirements; reference for structural safety and hazard prevention checks |
This product must meet the following technical requirements: 1. GB/T 3326-2016: Applicable for furniture – chairs and stools – determination of strength, durability and stability; reference standard for office chair structural testing; 2. GB/T 19001-2016: Applicable for quality management system certification of manufacturing process; not a product-specific approval; 3. GB 28007-2011: Reference safety standard for children's furniture does not apply; product is intended for adult office use; 4. GB/T 28204-2011: Applicable for office furniture – office chair safety technical requirements; reference for structural safety and hazard prevention checks; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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