| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall assembled dimensions | 760 x 880 x 1255 mm | |
|---|---|---|
| Seat width | 560 mm | |
| Seat depth | 560 mm | |
| Adjustable seat height range (floor to seat top) | 450 to 610 mm | |
| Backrest total height (seat top to headrest top) | 750 mm | |
| Seat cushion thickness | 130 mm | |
| Chrome five-star base diameter | 700 mm | |
| Twin-wheel caster diameter | 50 mm | |
| Armrest height (seat top to armrest surface) | 250 mm | |
| Retractable footrest extended length | 400 mm | |
| Backrest width (at lumbar support) | 520 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
| Recommended maximum user weight | 180 kg | |
|---|---|---|
| Chair net weight | 26 kg | |
| Chrome five-star base static load rating | 1136 kg | |
| High-density seat foam density | 40 kg/m³ | |
| Foam rebound rate | 40% | |
| Seat upholstery Martindale abrasion resistance | 50000 cycles | |
| Upholstery material thickness | 1.2 mm | |
| Caster rolling durability rating | 100000 cycles | |
| Mechanical parts warranty period | 1 year | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% |
Core acceptance fields · Panels / hardware / frame / upholstery
| Seat and back upholstery | Brown smooth leather (or premium PU leather) | |
|---|---|---|
| Seat and back padding | Layered high-density polyurethane foam | |
| Armrest top trim | Dark polished wood veneer accent | |
| Armrest padding and structure | Foam-padded upholstered arm supports with rigid internal frame | |
| Five-star base | Polished chrome-plated heavy-gauge steel | |
| Internal support frame | Plywood-reinforced steel structural frame | |
| Gas lift cylinder | Chrome-plated Class 3 pneumatic steel cylinder | |
| Recline mechanism plate | 3 mm thick stamped steel with chrome control lever | |
| Retractable footrest | Chrome-plated steel slide frame with padded upholstered top | |
| Caster wheels | Black polyurethane twin-wheel casters with chrome accent rings | |
| Seat side panels | Upholstered rigid structural side panels | |
| Seat Internal Support Board Thickness | 14 mm bent plywood or equivalent support board |
Adjustment / rotation / tilt / mobility / storage features
| Pneumatic seat height adjustment | 160 mm vertical stroke via left-side lever, locks at desired height | |
|---|---|---|
| Lockable backrest recline | 90° to 140° adjustable tilt, locks at selected angle via side control | |
| Retractable under-seat footrest | 400 mm slide-out extension, tucks flush under seat when not in use | |
| 360° swivel rotation | Full 360-degree rotation around gas lift axis for flexible positioning | |
| Smooth rolling mobility | Dual-wheel casters roll on hard tile and low-pile carpet without floor damage | |
| Tilt tension adjustment | Adjustable spring tension to match user weight for controlled recline | |
| Segmented ergonomic support | Contoured headrest, lumbar, and seat padding for long-sitting comfort | |
| Fixed height armrests | Padded wood-trim arms provide stable forearm support at fixed ergonomic height | |
| Reclined maximum overall depth (back fully tilted, footrest out) | 1510 mm | |
| 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
| Reference Package Count | 1 set / 2 cartons | |
|---|---|---|
| Reference Assembly Time | 40 minutes per set | |
| Reference Carton Dimensions | 850× 420× 720 mm | |
| Reference Packaged Gross Weight | 23 kg/set | |
| Reference Carton Volume | 0.26 m³/set | |
| Indicative 20GP Loading | 135 sets at 85% space utilization | |
| Indicative 40HQ Loading | 320 sets at 85% space utilization |
Recommended spaces / users / usage modes
| Executive office spaces | Suitable for private executive and management offices with classic professional styling | |
|---|---|---|
| Long-duration desk work | Provides recline and footrest support for extended seated work and short breaks | |
| Conference and boardroom use | Appropriate for formal boardroom seating for meeting attendees and leadership | |
| Home office workspaces | Fits premium home office setups requiring professional appearance and comfort | |
| Managerial workstations | Designed for senior staff seating requiring comfort and authoritative styling | |
| Hard and soft floor surfaces | Compatible with tile, hardwood, and low-pile carpet floors via soft PU casters | |
| 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
| Office chair safety requirement | EN 1335:2020 Office furniture - Office work chairs - Dimensions, safety requirements applicable for ergonomic sizing | |
|---|---|---|
| Office chair stability | EN 1335:2009 Office furniture - Office work chairs - Test methods for stability and strength | |
| Upholstered furniture fire safety | EN 1021:2014 Upholstered furniture - Ignitability by smouldering cigarette |
US and Canada office-furniture standards
| Office chair structural durability | ANSI/BIFMA X2017General purpose office chairs strength, durability, and stability standard | |
|---|---|---|
| Gas lift safety requirement | ANSI/BIFMA X5.1 Clause 7 for pneumatic cylinder structural and pressure safety | |
| Caster durability requirement | ANSI/BIFMA X5.1 Clause 17 for caster rolling and load durability performance |
Standards applicable to China-market projects
| Office chair safety structural requirement | GB/T 3324General technical requirements for wooden furniture applicable if wood trim components are used | |
|---|---|---|
| Upholstered furniture durability | GB/T 39222Upholstered office chair durability test methods recommended for seating fatigue testing | |
| Formaldehyde emission limit | GB 18584Indoor decorating and refurbishing materials limit of formaldehyde for wooden furniture |
This product must meet the following technical requirements: 1. Office chair safety structural requirement: GB/T 3324General technical requirements for wooden furniture applicable if wood trim components are used; 2. Upholstered furniture durability: GB/T 39222Upholstered office chair durability test methods recommended for seating fatigue testing; 3. Formaldehyde emission limit: GB 18584Indoor decorating and refurbishing materials limit of formaldehyde for wooden furniture; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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