| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 680 x 660 x 1080 mm | |
|---|---|---|
| Seat height adjustment range | 520 mm | |
| Seat cushion dimensions | 510 x 490 mm | |
| Seat foam thickness | 80 mm | |
| Backrest dimensions | 510 x 620 mm | |
| Fixed armrest height above seat | 200 mm | |
| Five-star base diameter | 680 mm | |
| Caster diameter | 60 mm | |
| Armrest width | 70 mm | |
| Seat edge thickness | 60 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
| Suggested maximum user weight | 150 kg | |
|---|---|---|
| Product net weight | 22 kg | |
| Seat foam density | 45 kg/m³ | |
| Backrest foam density | 35 kg/m³ | |
| Caster rolling durability | 100000 cycles | |
| Gas lift cycle life | 100000 cycles | |
| Seam stitching pitch | 8 mm | |
| Upholstery abrasion resistance | 50000 Martindale cycles | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% | |
| Back Foam Density Reference | 38 kg/m³ |
Core acceptance fields · Panels / hardware / frame / upholstery
| Seat and back upholstery | 1.4mm thick semi-aniline brown top-grain leather | |
|---|---|---|
| Seat cushion core | High-resilience cold-cured polyurethane foam | |
| Backrest support shell | 12mm thick molded plywood inner shell | |
| Fixed armrests | Integral upholstered armrests padded with 20mm polyurethane foam, wrapped in matching brown leather | |
| Tilt mechanism | 3mm thick black powder-coated stamped steel multi-position synchro-tilt chassis | |
| Height adjustment gas lift | 50mm diameter Class 3 polished chrome-plated steel pneumatic cylinder | |
| Five-star base | Polished die-cast aluminum alloy, 3mm wall thickness at leg sections | |
| Floor casters | 60mm diameter black polyurethane tread, nylon hub, dual-wheel design | |
| Upholstery stitching | Bonded polyester thread, edge-folded construction on all upholstery seams | |
| Base underframe reinforcement | Black powder-coated steel cross-brace between base legs | |
| 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
| Pneumatic seat height adjustment | Right-side lever actuates Class 3 gas lift to adjust seat height across 100mm stroke from 420mm to 520mm, locks at any selected height | |
|---|---|---|
| Synchro-tilt recline | Mechanism tilts seat and backrest at synchronized 1:2.3 ratio, locks at up to 120 degree recline angle via chassis tension adjustment | |
| Tilt tension adjustment | Knob under front of seat adjusts recline resistance from 40N to 120N to match user body weight | |
| 360-degree swivel rotation | Full continuous rotation around vertical axis via precision bearing between gas lift and mechanism, no rotational stops | |
| Smooth omnidirectional mobility | Dual-wheel polyurethane casters allow rolling movement on hard floors and low-pile carpet without floor scratching | |
| Integrated fixed arm support | Non-adjustable upholstered armrests provide 200mm of vertical support above seat surface for forearm resting during desk work | |
| Lumbar contour support | Ergonomically curved mid-height backrest provides built-in lumbar support at 180mm above seat surface, no separate adjustable lumbar pad | |
| Multi-position recline lock | Side lever locks recline mechanism in 3 positions: fully upright, mid-recline for task work, full recline for relaxed seating | |
| Backrest recline angle range | 120degrees | |
| Gas lift stroke length | 100 mm | |
| Recline Angle / Lock Reference | 125° with 3suggested lock positions | |
| Tilt Tension User-weight Range | Reference adjustment coverage 120 kg |
Verified carton / gross weight / assembly / loading data
| Number of shipping cartons | 1 | |
|---|---|---|
| Shipping carton dimensions | 720 x 680 x 580 mm | |
| Gross shipping weight | 26 kg | |
| Shipping volume per unit | 0.284 CBM | |
| Assembly time per unit | 30 minutes | |
| 20ft GP container loading quantity | 105 units | |
| 40ft HQ container loading quantity | 260 units | |
| Included assembly hardware | 1 set of M8 mounting bolts, 1 hex key, 5 caster mounting clips, 1 gas lift installation cap | |
| Reference Package Count | 1 set / 2 cartons | |
| Reference Assembly Time | 40 minutes per set |
Recommended spaces / users / usage modes
| Executive private offices | High-end leather appearance and ergonomic support suitable for director and C-suite offices, matching wood executive desk finishes for a professional aesthetic | |
|---|---|---|
| Open-plan manager workstations | Smooth-rolling casters and 360-degree swivel suit frequent movement between desk and meeting areas in open office environments | |
| Conference room seating | Fixed armrest design and mid-back support provide comfortable seating for 4 hour meetings without complex adjustment requirements | |
| Home office premium workspaces | Polished aluminum base and brown leather finish complement residential interior design while providing commercial-grade ergonomic support | |
| Reception and visitor waiting areas | Upright posture support and professional appearance make the chair suitable for guest seating in corporate lobbies and client meeting areas | |
| Coworking private office suites | Durable leather upholstery and commercial-grade components withstand frequent multi-user use in shared premium workspaces | |
| 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
| Recommended applicability: EN 1335-1:2020 | Applicable standards and test results require confirmation | |
|---|---|---|
| Recommended applicability: EN 1335-2:2018 | Applies to strength, durability and stability performance requirements for office chairs, applicable for structural performance acceptance | |
| Recommended applicability: EN 1021-1:2014 | Applies to ignitability resistance of upholstered furniture to smouldering cigarette sources, applicable for fire safety verification | |
| Recommended applicability: EN 1021-2:2014 | Applies to ignitability resistance of upholstered furniture to match flame equivalent sources, applicable for contract space fire compliance |
US and Canada office-furniture standards
| Recommended applicability: ANSI/BIFMA X5.1-2017 | Applies to general purpose office chairs, covering static load, cyclic durability, stability and impact test requirements for commercial-grade seating | |
|---|---|---|
| Recommended applicability: BIFMA X5.1-2017 Clause 5 | Covers backrest strength requirements, requiring 667N static load without structural failure for executive chair backrests | |
| Seat static load capacity | 1136 kg | |
| Base static load capacity | 1136 kg |
Standards applicable to China-market projects
| Recommended applicability: GB/T 3326-2016 | Applicable standards and test results require confirmation | |
|---|---|---|
| Recommended applicability: GB/T 39225-2020 | Applies to stability, strength and durability performance requirements for office seating, applicable for procurement acceptance of load and cycle performance | |
| Recommended applicability: GB 20286-2006 | Applies to fire performance requirements for upholstered furniture in public and office spaces, applicable for flame retardancy verification of upholstery and foam components | |
| Recommended applicability: GB 18584-2001 | Applies to formaldehyde and volatile organic compound emission limits for wooden and upholstered furniture, applicable for indoor air quality compliance verification |
This product must meet the following technical requirements: 1. Recommended applicability: GB/T 3326-2016: Applicable standards and test results require confirmation; 2. Recommended applicability: GB/T 39225-2020: Applies to stability, strength and durability performance requirements for office seating, applicable for procurement acceptance of load and cycle performance; 3. Recommended applicability: GB 20286-2006: Applies to fire performance requirements for upholstered furniture in public and office spaces, applicable for flame retardancy verification of upholstery and foam components; 4. Recommended applicability: GB 18584-2001: Applies to formaldehyde and volatile organic compound emission limits for wooden and upholstered furniture, applicable for indoor air quality compliance verification; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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