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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions (adjusted to highest seat position) | 680 mm W x 720 mm D x 1180 mm H | |
|---|---|---|
| Seat height adjustment range | 450 mm to 550 mm | |
| Seat cushion dimensions | 520 mm W x 510 mm D x 100 mm thick | |
| Backrest dimensions | 510 mm W x 720 mm H (from seat surface to top edge) | |
| Armrest dimensions | 70 mm thick padded top, 250 mm vertical height from seat surface, 350 mm total length from seat front to back mount | |
| Chrome 5-star base diameter | 700 mm | |
| Caster diameter | 60 mm | |
| Gas lift cylinder diameter | 50 mm | |
| Backrest segmented channel panel width | 110 mm per vertical panel, 4 panels across lumbar/mid-back section | |
| Seat front waterfall edge radius | 30 mm | |
| Wood veneer arm panel thickness | 12 mm | |
| Finished Seat Cushion Thickness | Approx. 70-90 mm | |
| Backrest Padding Thickness | Approx. 45-70 mm | |
| Lumbar Support Zone Height | Approx. 180-240 mm | |
| Clear Width Between Armrests | Approx. 470-540 mm |
Net weight / load capacity / users / durability
| Net weight reference range | 20 kg to 25 kg | |
|---|---|---|
| Recommended static weight capacity | 136 kg (300 lbs) | |
| Seat foam density | 40 kg/m³ high-density polyurethane foam | |
| Backrest foam density | 35 kg/m³ high-density polyurethane foam | |
| Foam rebound rate | 45% to 55% | |
| Tilt recline angle range | 90 degrees (upright locked) to 120 degrees (reclined) | |
| Seam stitch pitch | 8 stitches per 30mm | |
| Upholstery abrasion resistance rating | 50,000 double rubs (Wyzenbeek) | |
| Seat Foam Density / Rebound Reference | Approx. 35-45 kg/m³ / 50%-65% | |
| Back Foam Density Reference | Approx. 28-38 kg/m³ | |
| Upholstery Thickness / Abrasion Reference | Approx. 0.8-1.4 mm / 30,000-50,000 cycles | |
| Five-star Base Static Load Reference | Acceptance target ≥120 kg; chair reference load 120-150 kg | |
| Caster Rolling Durability Reference | Acceptance target 10,000-30,000 cycles | |
| Gas-lift Cycling Reference | Acceptance target 50,000-100,000 cycles | |
| Upholstery Seam Pitch | Approx. 3-4 mm | |
| Recommended Procurement Warranty | Frame 3-5 years; mechanism/gas lift 2-3 years; upholstery 1-2 years |
Core acceptance fields · Panels / hardware / frame / upholstery
| Seat and back upholstery | 1.0mm thick light gray nappa-textured faux leather (PU/PVC blend) | |
|---|---|---|
| Seat and back padding | High-density cold-cure polyurethane foam, no recycled filler | |
| Armrest tops | Upholstered in matching light gray faux leather over 20mm thick foam padding | |
| Armrest side panels | Walnut-toned bentwood veneer over 12mm thick molded plywood substrate | |
| Central lift column and base | Polished chrome-plated 1.5mm thick steel tubing | |
| Tilt mechanism housing | 2.5mm thick black powder-coated steel | |
| Caster wheels | Black dual-wheel nylon casters with PU tread, 60mm diameter | |
| Internal back/seat frame | 18mm thick curved plywood structural core | |
| Hardware fasteners | Zinc-plated steel screws and bolts for structural joints | |
| Seat Internal Support Board Thickness | Approx. 10-14 mm bent plywood or equivalent support board | |
| Backrest Internal Frame Thickness | Approx. 10-14 mm bent plywood/composite reinforced frame | |
| Gas-lift Engineering Specification | Recommended Class 3-4; outer tube approx. 50 mm; stroke approx. 90-100 mm | |
| Five-star Base Material Thickness | Metal base wall approx. 2.5-3.5 mm; diameter approx. 640-700 mm | |
| Caster Engineering Specification | 5 PU-tread swivel casters, approx. 50-60 mm diameter | |
| Reference Color Count | Recommended 3-5 upholstery colors and 1-2 base finishes |
Adjustment / rotation / tilt / mobility / storage features
| Pneumatic seat height adjustment | 100mm vertical stroke via right-side lever, operated while seated to align seat height with desk surface | |
|---|---|---|
| Spring tilt with tension control and lock | Tilt tension adjustable via front knob to match user weight, upright position locked via left-side lever to support fixed working posture | |
| 360-degree swivel rotation | Full rotation around central gas lift axis to enable access to multiple desk surfaces without repositioning base | |
| Smooth rolling mobility | Five dual-wheel casters roll freely on carpet and hard flooring, 360-degree caster rotation for easy movement | |
| Integrated lumbar support | Contoured channel-stitched mid-back padding provides fixed lumbar support aligned to natural lower back curve | |
| Waterfall seat edge design | Rounded front seat edge reduces pressure on back of thighs to improve circulation during prolonged sitting | |
| Fixed padded armrests | Curved armrests positioned at standard 250mm height above seat to support forearms during typing, fixed position with no height/width adjustment | |
| Recline Angle / Lock Reference | Approx. 90°-125° with 1-3 suggested lock positions | |
| Tilt Tension User-weight Range | Reference adjustment coverage approx. 50-120 kg | |
| Rotation / Mobility Configuration | 360° swivel with 5-caster multidirectional movement |
Verified carton / gross weight / assembly / loading data
| Pack unit | 1 fully disassembled chair per corrugated carton | |
|---|---|---|
| Reference carton dimensions | 880 mm L x 670 mm W x 360 mm H | |
| Reference gross weight per carton | 26 kg | |
| Reference carton volume (CBM) | 0.213 CBM | |
| Estimated assembly time | 20 to 30 minutes, 1-person assembly with included Allen key and instruction manual | |
| Indicative container loading capacity | 120 units per 20GP container, 300 units per 40HQ container | |
| Reference Package Count | 1 set / 1-2 cartons | |
| Reference Assembly Time | Approx. 15-40 minutes per set | |
| Reference Packaged Gross Weight | Approx. 17-23 kg/set | |
| Reference Carton Volume | Approx. 0.17-0.26 m³/set |
Recommended spaces / users / usage modes
| Private executive offices | Fits 1400-1800mm wide executive desks, with formal wood-accented design matching professional management office decor | |
|---|---|---|
| Home office workspaces | Compact footprint and light neutral color suits modern home office setups, supporting 4-8 hour daily seated work use | |
| Small conference rooms | Formal padded design suitable for meeting room seating around conference tables, with rolling mobility for easy repositioning | |
| Open-plan management workstations | Durable upholstery and commercial-grade structure support regular daily use in shared office environments, with quiet casters reducing floor noise | |
| Recommended pairing | Works with 720-760mm high standard office desks, compatible with standard monitor arms and keyboard trays | |
| Recommended Matching Desk Size | Approx. 1.8-2.4 m executive desk | |
| Reference Daily Use Duration | Approx. 4-8 hours/day; confirm by ergonomic testing |
European market access and chemical requirements
| EN 1335-1:2020 | Applies to dimensional ergonomic requirements for office work chairs, defining acceptable ranges for seat height, depth, backrest dimensions and clearance for seated users | |
|---|---|---|
| EN 1335-2:2018 | Applies to safety, strength and durability requirements for office chairs, including stability, static load and cyclic fatigue testing for all structural components | |
| EN 1022:2018 | Applies to stability testing for seating, verifying the chair resists tipping during normal use and recline |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Applies to general-purpose office chair performance requirements, including 113kg (250lb) minimum static load, 100,000-cycle swivel durability, and caster rolling durability testing |
|---|
Standards applicable to China-market projects
| GB/T 3326-2016 | Applies to dimensional and tolerance requirements for office seating, verifying seat height, width, depth and back dimensions fall within acceptable ergonomic ranges for adult office use | |
|---|---|---|
| GB/T 10357.3-2013 | Applies to mechanical performance testing of office chairs, including static load, fatigue and impact testing for seat, backrest and armrests | |
| GB 20214-2023 | Applicable standards and test results require confirmation |
This product must meet the following technical requirements: 1. GB/T 3326-2016: Applies to dimensional and tolerance requirements for office seating, verifying seat height, width, depth and back dimensions fall within acceptable ergonomic ranges for adult office use; 2. GB/T 10357.3-2013: Applies to mechanical performance testing of office chairs, including static load, fatigue and impact testing for seat, backrest and armrests; 3. GB 20214-2023: Applicable standards and test results require confirmation; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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