| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 650 x 620 x 890 mm | |
|---|---|---|
| Seat height from floor | 450 mm | |
| Seat width | 480 mm | |
| Seat depth | 450 mm | |
| Backrest height above seat | 440 mm | |
| Armrest height above seat | 200 mm | |
| Armrest width | 70 mm | |
| Four-star base leg span diameter | 680 mm | |
| Clearance under seat to floor | 240 mm | |
| Bentwood shell outer panel thickness | 12 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
| Net product weight | 18 kg | |
|---|---|---|
| Maximum static user load capacity | 136 kg | |
| Recommended maximum user weight for daily use | 110 kg | |
| Seat foam thickness | 60 mm | |
| Backrest foam thickness | 40 mm | |
| Seam stitch pitch | 8 stitches per 30mm | |
| Upholstery material abrasion resistance | 50000 Martindale cycles | |
| Swivel rotation range | 360 degrees | |
| Base static glide load rating per foot | 45 kg | |
| Swivel mechanism cycle durability | 30000 rotation cycles |
Core acceptance fields · Panels / hardware / frame / upholstery
| Seat and backrest padding | High-density polyurethane foam, density 45kg/m³, rebound rate 40% | |
|---|---|---|
| Seat and back upholstery | Woven polyester fabric or matte polyurethane leather, off-white color | |
| Outer side shell and arm support structure | Bent oak plywood, 12mm thickness, natural light oak matte veneer finish | |
| Central support column | Polished chrome plated steel gas lift cylinder, 50mm diameter, fixed non-height-adjustable | |
| Four-spider swivel base | Polished die-cast aluminum, 2.5mm wall thickness, four splayed legs | |
| Armrest top pads | Matching upholstered foam, integrated with seat and back upholstery | |
| Floor contact glides | Nylon body with TPU anti-slip contact pads, 30mm diameter | |
| Internal shell support frame | 1.5mm thick powder coated steel reinforcement plate embedded under seat | |
| Swivel joint mechanism | Steel ball bearing swivel unit, 100mm diameter, no tilt function | |
| Five-spider swivel base | Polished die-cast aluminum, 2.5mm wall thickness, five splayed curved legs | |
| Upholstery underlayer | 100g/m² non-woven polyester interlining between foam and outer fabric/PU | |
| Seat Internal Support Board Thickness | 14 mm bent plywood or equivalent support board |
Adjustment / rotation / tilt / mobility / storage features
| Swivel function | 360 degree smooth rotation via central ball bearing swivel joint, no return-to-center tension | |
|---|---|---|
| Floor protection | Soft TPU glide feet prevent hard floor scratches, suitable for wood, tile, and low-pile carpet floors | |
| Integrated armrest support | Fixed padded armrests connected directly to the bentwood shell for consistent forearm support | |
| Lumbar support | Contoured bentwood back shell provides passive mid-back and lumbar support without adjustable mechanisms | |
| No height adjustment | Fixed seat height optimized for standard 750mm high conference tables, no height lift mechanism | |
| No tilt or recline function | Fixed back angle at 100 degrees from seat, suitable for upright formal meeting posture | |
| No caster wheel fitment | Static glide-mounted base designed for fixed placement at conference tables, no rolling function | |
| Shell construction | Single bent plywood shell wraps seat, back, and arm supports into one rigid structural unit | |
| Fixed height design | Fixed seat height optimized for standard 750mm high conference tables, no height lift mechanism | |
| Fixed upright posture | Fixed back angle at 100 degrees from seat, suitable for upright formal meeting posture | |
| Static base design | Static glide-mounted base designed for fixed placement at conference tables, no rolling function | |
| Monocoque shell construction | Single bent plywood shell wraps seat, back, and arm supports into one rigid structural unit |
Verified carton / gross weight / assembly / loading data
| Number of shipping cartons | 1 carton | |
|---|---|---|
| Packed carton dimensions | 680 x 650 x 500 mm | |
| Packed gross weight | 22 kg | |
| Packed volume per unit | 0.221 CBM | |
| Assembly time per unit | 20 minutes | |
| 20ft GP container loading quantity | 150 units | |
| 40ft HQ container loading quantity | 370 units | |
| Reference Package Count | 1 set / 2 cartons | |
| Reference Assembly Time | 40 minutes per set | |
| Reference Carton Dimensions | 850× 420× 720 mm |
Recommended spaces / users / usage modes
| Corporate conference rooms | Formal upholstered design with polished metal and wood accents matches professional meeting space aesthetics, fixed posture supports collaborative discussion | |
|---|---|---|
| Executive private office guest seating | Scaled to pair with executive desks without occupying excessive floor space, neutral color scheme complements premium office finishes | |
| Co-working space meeting zones | 360 swivel function supports flexible group interaction, fixed low-maintenance design reduces upkeep for shared workspaces | |
| Client reception lounge areas | Warm wood finish and soft upholstery create welcoming guest seating adjacent to reception desks or waiting zones | |
| Available finish options | 3 standard upholstery colors including off-white, dark grey, black, and 2 wood finish options including natural oak and walnut, to match diverse interior palettes | |
| Standard finish options | 3 standard upholstery colors including off-white, dark grey, black, and 2 wood finish options including natural oak and walnut, to match diverse interior palettes | |
| 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
| EN 1335-1:2020 Office furniture - Office work chairs - Part 1: Dimensions - Determination of dimensions | Applicable as reference for seat height, seat depth and armrest dimensional suitability for adult users | |
|---|---|---|
| EN 1335-2:2018 Office furniture - Office work chairs - Part 2: Safety requirements | Applicable as reference for structural stability, static load and safety performance requirements | |
| EN 1022:2018 Domestic furniture - Seating - Determination of stability | Applicable as reference for base span and tip resistance requirements for non-caster seating |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 General Purpose Office Chairs - Tests | Applicable as performance reference for static load, back strength and durability testing for commercial use | |
|---|---|---|
| ANSI/BIFMA X5.11-2015 Large Occupant Office Chairs | Applicable if specifying the 136kg load rating variant for bariatric user support |
Standards applicable to China-market projects
| GB/T 3324-2017 General technical requirements for wooden furniture | Applicable to the bentwood plywood shell structural performance and finish quality requirements for this chair | |
|---|---|---|
| GB/T 35607-2017 General technical requirements for office furniture office chairs | Applicable to overall dimensional stability, load capacity and structural safety requirements | |
| GB 18584-2001 Indoor decorating and refurbishing materials - Limit of harmful substances of wood based furniture | Applicable to formaldehyde emission limits for plywood components and adhesive materials |
This product must meet the following technical requirements: 1. GB/T 3324-2017 General technical requirements for wooden furniture: Applicable to the bentwood plywood shell structural performance and finish quality requirements for this chair; 2. GB/T 35607-2017 General technical requirements for office furniture office chairs: Applicable to overall dimensional stability, load capacity and structural safety requirements; 3. GB 18584-2001 Indoor decorating and refurbishing materials - Limit of harmful substances of wood based furniture: Applicable to formaldehyde emission limits for plywood components and adhesive materials; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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