| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 670 x 680 x 1180 mm | |
|---|---|---|
| Seat height adjustable range | 520 mm | |
| Seat width | 520 mm | |
| Seat depth | 490 mm | |
| Backrest height | 700 mm | |
| Backrest width | 500 mm | |
| Armrest height from seat | 220 mm | |
| 5-star base diameter | 700 mm | |
| Caster diameter | 60 mm | |
| Gas lift 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
| Chair net weight | 21 kg | |
|---|---|---|
| Maximum recommended user weight | 150 kg | |
| Seat foam thickness | 80 mm | |
| Backrest foam thickness | 50 mm | |
| Foam density (seat) | 45 kg/m³ | |
| Seam stitch pitch | 8 stitches per inch | |
| Upholstery abrasion resistance | 50000 double rubs | |
| Caster rolling durability | 100000 cycles | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% | |
| Back Foam Density Reference | 38 kg/m³ |
Core acceptance fields · Panels / hardware / frame / upholstery
| Outer seat and back shell | 12 mm thick molded bent plywood with high-gloss white PU lacquer finish, crisp white edge trim | |
|---|---|---|
| Seat upholstery | 1.2 mm thick black matte faux leather (PU leather) | |
| Backrest upholstery | 1.2 mm thick black matte faux leather (PU leather), contoured for mid-back lumbar support | |
| Armrest construction | Integral curved molded plywood shell matching white outer frame, padded black faux leather arm pads flush with seat profile | |
| Seat cushion core | High-density cold-cure polyurethane foam | |
| Backrest cushion core | Medium-density molded polyurethane foam | |
| 5-star base | Polished die-cast aluminum, 2.5 mm wall thickness | |
| Gas lift column | Chrome-plated steel, Class 3 safety rated | |
| Casters | 60 mm diameter twin-wheel casters with black nylon rolling surface and chrome-plated wheel housing | |
| Tilt mechanism | 2.5 mm thick steel plate synchro-tilt mechanism with tension adjustment | |
| 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 | 100 mm vertical travel via pneumatic gas lift, activated by right-side lever under seat, locks at any height within range | |
|---|---|---|
| Swivel function | 360-degree unlimited horizontal rotation around central gas lift column, smooth bearing for easy rotation | |
| Backrest tilt function | 115degree recline range, synchro-tilt mechanism tilts seat and back at 1:2 ratio, tension adjustment knob for user weight, lockable in upright position | |
| Rolling mobility | Smooth rolling on hard tile, wood or low-pile carpet floors via five twin-wheel casters, no brake function visible | |
| Integrated armrest support | Fixed curved armrests provide continuous forearm support aligned with standard desktop height, no height or width adjustment | |
| Contoured back support | Ergonomic curved backrest provides mid-back lumbar support, no separate adjustable lumbar pad visible | |
| Floor protection | Soft nylon caster rolling surface prevents scratches on hard polished tile or wood flooring | |
| 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
| Number of packages | 1 | |
|---|---|---|
| Carton dimensions | 820 x 680 x 650 mm | |
| Gross weight per carton | 26 kg | |
| Packaging volume (CBM) | 0.363 CBM | |
| Required assembly time | 20 minutes | |
| 20ft GP container loading quantity | 172 units | |
| 40ft HQ container loading quantity | 420 units | |
| Reference Package Count | 1 set / 2 cartons | |
| Reference Assembly Time | 40 minutes per set | |
| Reference Carton Dimensions | 850× 420× 720 mm |
Recommended spaces / users / usage modes
| Executive private offices | Suitable for manager and executive private offices, premium white and black finish matches modern minimalist office decor | |
|---|---|---|
| Modern meeting rooms | Suitable for boardroom and meeting room seating around conference tables, swivel and tilt function supports long meeting use | |
| Home office spaces | Suitable for residential home offices with contemporary interior design, compact footprint fits standard home desk configurations | |
| Creative studio workspaces | Suitable for design and creative studio environments, sleek modern aesthetic matches contemporary studio interior styling | |
| Reception and guest areas | Suitable for executive reception areas as visitor seating, polished appearance presents a professional first impression | |
| 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
| EN 1335-1:2020 | Applicable European standard for office work chairs dimensional, safety and strength requirements, recommended for export to EU market compliance | |
|---|---|---|
| EN 1335-2:2018 | Applicable European standard for office work chair safety performance requirements, including structural strength and stability testing | |
| EN 1335-3:2009 | Applicable European standard for office work chair test methods, to verify mechanical durability and load capacity |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Applicable North American standard for general purpose office chairs, specifying static load, durability and stability test requirements for commercial seating |
|---|
Standards applicable to China-market projects
| GB/T 3326-2016 | Applicable standard for office furniture chair dimensional accuracy and stability testing, recommended for incoming inspection of product dimensions and tip resistance | |
|---|---|---|
| GB/T 24821-2009 | Applicable standard for office chair mechanical performance testing, including seat static load, backrest static load and durability test requirements | |
| GB 18584-2001 | Applicable standard for indoor decorating and refurbishing materials, limit of harmful substances in wooden furniture, recommended for formaldehyde and heavy metal content verification |
This product must meet the following technical requirements: 1. GB/T 3326-2016: Applicable standard for office furniture chair dimensional accuracy and stability testing, recommended for incoming inspection of product dimensions and tip resistance; 2. GB/T 24821-2009: Applicable standard for office chair mechanical performance testing, including seat static load, backrest static load and durability test requirements; 3. GB 18584-2001: Applicable standard for indoor decorating and refurbishing materials, limit of harmful substances in wooden furniture, recommended for formaldehyde and heavy metal content verification; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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