| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions (W x D x H) | 680 x 700 x 1200 mm | |
|---|---|---|
| Seat width | 510 mm | |
| Seat depth | 500 mm | |
| Seat height (adjustable range) | 540 mm | |
| Backrest height | 720 mm | |
| Backrest width | 500 mm | |
| Armrest height (from seat surface) | 240 mm | |
| 5-star base diameter | 680 mm | |
| Caster diameter | 50 mm | |
| Seat cushion thickness | 80 mm | |
| Backrest cushion thickness | 60 mm | |
| Gas lift column diameter | 50 mm | |
| Seat height (adjustable range, floor to seat top) | 540 mm | |
| Backrest height (seat top to backrest top) | 720 mm | |
| Backrest width (widest point) | 500 mm | |
| Armrest height (from seat surface, deployed position) | 240 mm |
Net weight / load capacity / users / durability
| Net weight | 27 kg | |
|---|---|---|
| Static load weight capacity | 150 kg | |
| Seat foam density | 50 kg/m³ | |
| Backrest foam density | 40 kg/m³ | |
| Gas lift dynamic load rating | 1200N | |
| Chrome base static load rating | 1100 kg minimum | |
| Caster rolling durability | ≥40000 cycles | |
| Recommended daily usage duration | 10 hours | |
| Tilt lock angle range | 120degrees from vertical | |
| Static load weight capacity (recommended user weight) | 150 kg |
Core acceptance fields · Panels / hardware / frame / upholstery
| Seat and backrest upholstery | Smooth taupe brown top-grain leather or high-grade PU leather | |
|---|---|---|
| Seat cushion inner | Dual-layer high-resilience polyurethane foam, with upper soft comfort layer and lower support layer | |
| Backrest inner support | 15 mm thick molded plywood internal frame, covered with medium-density foam | |
| Armrest pads | 20 mm thick foam padded with matching leather/PU upholstery, rounded edge design | |
| Armrest supports | Reinforced nylon arm brackets with polished chrome accent trim on outer edge | |
| 5-star base | Polished die-cast aluminum alloy, 3 mm wall thickness, polished chrome finish | |
| Gas lift | Chrome-plated steel class 3 gas lift, 100 mm stroke, SGS-certified standard for office chairs | |
| Tilt mechanism chassis | 2.5 mm thick steel plate multi-function tilt chassis, with tension adjustment knob and lock lever | |
| Casters | 50 mm diameter black nylon twin-wheel casters, with hard-floor/soft-floor compatible tread | |
| Back support structure | Vertical support bar along rear edge of backrest for structural rigidity | |
| Stitching detail | Double-stitched seams with 10stitches per inch, forming segmented back cushion panels | |
| Seat cushion core | Dual-layer high-resilience polyurethane foam, 20mm soft comfort upper layer and 60mm firm support lower layer |
Adjustment / rotation / tilt / mobility / storage features
| Seat height adjustment | Pneumatic height adjustment via right-side lever, 100 mm adjustment stroke, locks at any position within range | |
|---|---|---|
| Backrest tilt function | Tilt and lock mechanism allowing backrest recline up to 25 degrees from upright position, with adjustable tilt tension control via knob under seat | |
| 360-degree swivel rotation | Full unrestricted 360-degree swivel around central gas lift column, for easy multi-directional access without moving base | |
| Smooth rolling mobility | Five twin-wheel casters allow free movement on low-pile carpet and hard flooring, with 360-degree caster swivel for directional movement | |
| Fixed padded armrests | Fixed-position padded armrests positioned to provide forearm support during typing and desk work, no height/width adjustment | |
| Ergonomic segmented lumbar support | Contoured segmented backrest with padded lumbar zone to maintain natural spinal curve during seated work | |
| Tilt tension adjustment | Rotary tension knob under seat adjusts recline resistance to match user body weight, preventing uncontrolled backward tilt | |
| Backrest multi-position tilt lock | Synchro tilt mechanism allowing backrest recline up to 25 degrees from upright position, lockable in 3 preset positions (upright, mid-recline, full recline) via left-side lever | |
| Smooth omnidirectional mobility | Five twin-wheel casters allow free movement on low-pile carpet, wood, tile and laminate floors, with 360-degree caster swivel for zero-turn directional movement | |
| Flip-up padded armrests | Hinged armrests flip upward 90 degrees to provide unobstructed side seat access, lock in deployed position via spring-loaded detent, no height/width adjustment in deployed state | |
| Contoured segmented lumbar support | Non-adjustable built-in padded lumbar zone positioned 240 mm above seat surface, aligned to natural lumbar spine curve to maintain neutral seated posture | |
| Backrest rear edge support | Full-height vertical rear support gusset prevents backrest warping or twisting under recline load, extending structural warranty for long-term use |
Verified carton / gross weight / assembly / loading data
| Number of shipping packages | 1 unit/carton | |
|---|---|---|
| Reference carton dimensions (L x W x H) | 820 x 680 x 400 mm | |
| Reference gross weight per carton | 30 kg | |
| Reference carton volume (CBM) | 0.223 CBM | |
| Assembly time reference | 25 minutes | |
| 20ft GP container loading reference | 140units | |
| 40ft HQ container loading reference | 330units | |
| Packaging protection | 5-layer corrugated carton with expanded polystyrene foam corner protectors and plastic bag wrap for upholstery | |
| Packaging protection standard | 5-layer BC-flute corrugated carton with expanded polystyrene foam corner protectors, plastic dust bag for upholstered components, and hardware kit sealed in labeled polybag | |
| Reference Package Count | 1 set / 2 cartons |
Recommended spaces / users / usage modes
| Executive private office | High-back padded design suitable for executive suites and manager offices, providing ergonomic support for long work sessions | |
|---|---|---|
| Open plan office workstation | Quiet swivel and rolling design suitable for senior staff workstations, with neutral taupe color matching most modern office decor | |
| Conference/meeting room | Formal upholstered appearance suitable for boardroom and meeting room seating, with stable base and comfortable padding for multi-hour meetings | |
| Home office workspace | Residential-friendly neutral color and compact footprint suitable for home office use, supporting daily work and study activities | |
| Recommended desk height compatibility | Fits standard 760 mm height office desks, with adjustable seat height to match user preference | |
| Recommended floor surface compatibility | Nylon casters suitable for use on low-pile carpet, wood, tile and laminate floors, with optional soft casters for scratch-prone hard floors | |
| Senior staff open-plan workstation | Quiet rolling swivel and neutral taupe finish suitable for senior employee open-plan workstations, with dimensions compatible with standard 1800 mm width executive desks | |
| Boardroom and conference room seating | Formal upholstered appearance suitable for boardroom and high-level meeting room seating, with stable base and contoured padding supporting 4 hour meeting sessions |
EU Market Access Requirements* EN Standards
| EN 1335-1 | 2020 Office furniture - Office work chairs - Part 1: Dimensions - Determination of dimensions: Applicable for verifying ergonomic dimension compliance for seated work | |
|---|---|---|
| EN 1335-2 | 2018 Office furniture - Office work chairs - Part 2: Safety requirements: Applicable for structural safety, stability and strength performance acceptance | |
| EN 1335-3 | 2009 Office furniture - Office work chairs - Part 3: Test methods: Applicable for standardized durability and load verification test protocols |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 Office Chairs | Tests and Minimum Requirements: Recommended procurement acceptance standard for structural durability, load rating, stability and cycle performance for commercial office use |
|---|
Standards applicable to China-market projects
| GB/T 3324-2017 General technical requirements for furniture | Applicable for structural safety and dimension tolerance acceptance of office chairs | |
|---|---|---|
| GB 18584-2001 Indoor decorating and refurbishing materials - Limit of harmful substances of wood based furniture | Applicable for formaldehyde and heavy metal emission limits from internal plywood frames | |
| GB/T 10357.3-2013 Test of mechanical properties of furniture - Strength and durability of chairs and stools | Applicable for static load, fatigue and impact performance acceptance testing |
This product must meet the following technical requirements: 1. GB/T 3324-2017 General technical requirements for furniture: Applicable for structural safety and dimension tolerance acceptance of office chairs; 2. GB 18584-2001 Indoor decorating and refurbishing materials - Limit of harmful substances of wood based furniture: Applicable for formaldehyde and heavy metal emission limits from internal plywood frames; 3. GB/T 10357.3-2013 Test of mechanical properties of furniture - Strength and durability of chairs and stools: Applicable for static load, fatigue and impact performance acceptance testing; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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