| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 680 x 720 x 1180 mm | |
|---|---|---|
| Seat height (top of seat to floor) | 520 mm | |
| Seat depth (front to back) | 500 mm | |
| Seat width (between armrests) | 510 mm | |
| Backrest height (seat to top of back) | 780 mm | |
| Backrest width | 500 mm | |
| Headrest dimensions | 500 x 150 mm | |
| Armrest height (seat to top of armrest) | 240 mm | |
| Armrest length (front to back) | 280 mm | |
| Five-star base diameter | 700 mm | |
| Caster diameter | 60 mm | |
| Seat foam cushion thickness | 60 mm | |
| Backrest foam padding thickness | 40 mm | |
| Finished Seat Cushion Thickness | 90 mm | |
| Backrest Padding Thickness | 70 mm | |
| Lumbar Support Zone Height | 240 mm |
Net weight / load capacity / users / durability
| Net product weight | 25 kg | |
|---|---|---|
| Maximum user weight capacity | 150 kg | |
| Seat static load capacity | 160 kg | |
| Caster rolling durability cycle rating | 100000 cycles | |
| Seat height adjustment travel | 100 mm | |
| Backrest tilt angle range | 18 degrees | |
| Available upholstery color options | 6 | |
| Seam tensile strength | 120 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 structural panel | 15mm thick molded plywood core with 0.6mm rosewood grain veneer finish, clear matte lacquer topcoat | |
|---|---|---|
| Headrest panel | 12mm thick molded plywood with matching rosewood veneer finish, attached via polished metal bracket to main backrest | |
| Seat core | 40mm thick high-density molded polyurethane foam, density 45kg/m³, rebound rate 45% | |
| Seat upholstery | 1.2mm thick top-grain leather, Martindale abrasion resistance 50000 cycles, 30mm seam stitch pitch | |
| Armrest pads | 30mm thick polyurethane foam padding with black PU leather upholstery | |
| Armrest support frames | 12mm thick polished die-cast aluminum alloy, chrome-plated finish, curved structural design connecting seat frame to arm pad | |
| Seat and tilt mechanism | 3mm thick stamped steel plate with black powder-coat finish, synchro-tilt locking structure | |
| Gas lift cylinder | 50mm outer diameter Class 3 carbon steel gas lift, chrome-plated outer tube | |
| Five-star base | 12mm thick polished die-cast aluminum alloy, chrome-plated finish, 700mm diameter with caster mounting sockets | |
| Casters | 60mm diameter nylon wheel with PU tread, dual-wheel swivel design, zinc-plated mounting stem | |
| Internal backrest support frame | 2mm thick welded steel tube frame, black powder-coat finish, mounted between plywood panel and mechanism | |
| Backrest padding | 40mm thick medium-density polyurethane foam, density 35kg/m³, rebound rate 40%, bonded to plywood back core |
Adjustment / rotation / tilt / mobility / storage features
| Seat height adjustment | Pneumatic height adjustment via Class 3 gas lift, 100mm total vertical travel, controlled by side lever under seat to adjust for 520 mm seat height range | |
|---|---|---|
| Synchro-tilt recline | Synchronized seat and back tilt mechanism, 18 degree maximum back recline with 5 degree accompanying seat tilt, 4-position lockable recline positions via side lever | |
| Tilt tension adjustment | Rotary tension knob under seat adjusts tilt resistance from 40Nm to 90Nm to match user weight, prevents unexpected recline | |
| 360-degree swivel rotation | Full 360-degree horizontal swivel via sealed bearing between gas lift and seat mechanism, no rotational stops for easy desk access | |
| Fixed height armrests | Fixed position padded armrests set at 240mm above seat surface, non-adjustable height or width, provides stable forearm support during desk work | |
| Smooth rolling mobility | Dual-wheel PU casters roll on hard wood, tile, and low-pile carpet floors, 360-degree swivel caster yoke for multidirectional movement without floor damage | |
| Integrated fixed headrest | Fixed angled headrest positioned at neck height for upper cervical support, no height or angle adjustment, matches backrest wood veneer finish | |
| Weight-activated seat support | Tilt mechanism automatically adjusts initial resistance for users up to 150kg, reduces need for manual tension adjustment for typical weight ranges | |
| Fixed position armrests | Non-adjustable height/width padded armrests set at 240mm above seat surface, provides stable forearm support during desk work with no protruding adjustment hardware | |
| Recline Angle / Lock Reference | 125° with 3 suggested 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 shipping cartons | 1 | |
|---|---|---|
| Shipping carton dimensions | 880 x 680 x 580 mm | |
| Gross shipping weight | 30 kg | |
| Shipping volume per unit (CBM) | 0.35 | |
| Assembly time per unit | 30 minutes | |
| 20ft GP container loading quantity | 180 units | |
| 40ft HQ container loading quantity | 460 units | |
| Packaging materials | 5-layer corrugated carton, EPS foam corner protection, PE plastic dust wrap, printed assembly instruction, hardware kit with Allen key | |
| Reference Package Count | 1 set / 2 cartons | |
| Reference Assembly Time | 40 minutes per set |
Recommended spaces / users / usage modes
| Executive private office | Suits C-suite and manager private offices, wood veneer back provides premium aesthetic matching traditional wood office casegoods | |
|---|---|---|
| Boardroom and meeting rooms | Appropriate for formal boardroom deployment, polished metal and wood finish matches formal conference furniture aesthetics, swivel function supports easy interaction around meeting tables | |
| High-end home office | Fits luxury home office environments with wood furniture, classic wood finish coordinates with residential wood desks and cabinetry without commercial office aesthetic | |
| Client reception interview rooms | Suitable for client-facing interview rooms, professional formal appearance creates positive first impression while maintaining seating comfort for guests | |
| Government and institutional offices | Compliant with formal government office decor requirements, conservative wood and metal finish matches standardized institutional furniture styling | |
| Standard workstation compatibility | Designed for use with 760 mm height standard office desks, 240mm arm height fits under most standard desk surfaces for close access to work surfaces | |
| Recommended service life | 8 years for commercial 8-hour daily use, aligned with heavy duty office chair durability specifications | |
| Government and institutional executive offices | Compliant with formal government office decor requirements, conservative wood and metal finish matches standardized institutional furniture styling |
EU Market Access Requirements* EN Standards
| EN 1335-1:2020 | Applies to office chair dimensional and ergonomic requirement verification for contract office use | |
|---|---|---|
| EN 1335-2:2018 | Applies to office chair mechanical strength and durability testing requirements for commercial deployment | |
| EN 1335-3:2009 | Applies to office chair stability test methods and minimum performance requirements |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 Test 7 | Applies to static base load verification requirement of 1136kg for heavy duty office chairs | |
|---|---|---|
| Base static load capacity | 1136 kg |
Standards applicable to China-market projects
| GB/T 3326-2016 | Applies to office chair dimensional measurement and tolerance requirements, verification reference for overall and component dimensions | |
|---|---|---|
| GB/T 3324-2017 | Applies to general wooden furniture surface quality and structural tolerance requirements for wood veneer back panels | |
| GB 28007-2011 | Applies to office chair mechanical safety and stability requirements, verification reference for load capacity and tip resistance | |
| GB/T 16799-2008 | Applies to leather upholstery material quality and performance requirements for seating surfaces |
This product must meet the following technical requirements: 1. GB/T 3326-2016: Applies to office chair dimensional measurement and tolerance requirements, verification reference for overall and component dimensions; 2. GB/T 3324-2017: Applies to general wooden furniture surface quality and structural tolerance requirements for wood veneer back panels; 3. GB 28007-2011: Applies to office chair mechanical safety and stability requirements, verification reference for load capacity and tip resistance; 4. GB/T 16799-2008: Applies to leather upholstery material quality and performance requirements for seating surfaces; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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