| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 760 x 800 x 1200 mm | |
|---|---|---|
| Seat width | 520 mm | |
| Seat depth | 550 mm | |
| Adjustable seat height range | 600 mm | |
| Backrest height | 720 mm | |
| Backrest width | 490 mm | |
| Armrest height above seat | 200 mm | |
| Armrest length | 300 mm | |
| 5-star base diameter | 700 mm | |
| Caster diameter | 65 mm | |
| Seat foam thickness | 100 mm | |
| Backrest foam thickness | 80 mm | |
| Wood side panel thickness | 20 mm | |
| Minimum knee clearance under seat | 180 mm | |
| Finished Seat Cushion Thickness | 90 mm | |
| Backrest Padding Thickness | 70 mm |
Net weight / load capacity / users / durability
| Net weight | 32 kg | |
|---|---|---|
| Recommended static user weight capacity | 150 kg | |
| Seat foam density | 40 kg/m³ | |
| Foam rebound rate | 45% | |
| Upholstery abrasion resistance | 50000 Martindale cycles | |
| Swivel rotation range | 360 degrees | |
| Tilt recline angle range | 15 degrees | |
| Caster rolling durability | 40000 cycles | |
| Gas lift cycle durability | 100000 height adjustment cycles | |
| Available color options | 5 colors |
Core acceptance fields · Panels / hardware / frame / upholstery
| Seat and backrest upholstery | Black top-grain leather option / PU faux leather standard, smooth grain finish | |
|---|---|---|
| Cushion fill material | High-density polyurethane foam, 40D density, shaped for ergonomic support | |
| Side panel and arm trim | Solid mahogany-stained hardwood / MDF wood veneer over substrate, polished varnish finish | |
| Armrest pads | Upholstered padded armrests matching seat upholstery, supported by wood trim | |
| Internal seat frame | 18 mm thick E1-grade curved plywood with steel reinforcement brackets | |
| 5-star base structure | Wood-finish outer caps over reinforced steel internal core, stained to match side panels | |
| Pneumatic gas lift | Class 3 carbon steel gas lift, 50 mm outer diameter, 80 mm height adjustment stroke | |
| Tilt mechanism | 3 mm thick steel butterfly lock-tilt chassis with adjustable tension knob | |
| Casters | Black PU twin-wheel casters, hard floor/carpet compatible, brake-free standard | |
| Internal hardware | Zinc-plated steel bolts, screws, and connection brackets for knock-down assembly | |
| Wood finish coating | Clear satin polyurethane varnish, scratch-resistant top coat | |
| Upholstery stitching | Reinforced bonded nylon thread, 8 stitches per inch seam pitch |
Adjustment / rotation / tilt / mobility / storage features
| Pneumatic height adjustment | Lever-operated gas lift adjusts seat height between 520 mm and 600 mm to accommodate 190 cm tall users | |
|---|---|---|
| 360-degree swivel rotation | Full rotation around vertical axis for easy access to surrounding desk areas without moving the base | |
| Locking tilt recline | Backward recline up to 15 degrees with infinite position lock and adjustable tension control to match user weight | |
| Rolling caster mobility | Five dual-wheel casters allow smooth movement on carpet and hard floor surfaces with minimal rolling resistance | |
| Ergonomic lumbar support | Button-tufted backrest contour provides built-in mid-back lumbar support without adjustable lumbar pad | |
| Integrated padded arm support | Fixed wood-framed armrests with padded tops support forearms during typing and desk work to reduce shoulder strain | |
| Stable weight distribution | 700 mm diameter 5-point base provides anti-tip stability per standard office chair safety design | |
| Knock-down assembly | Chair ships disassembled for reduced shipping volume, with bolt-together assembly of base, seat, back, and arms | |
| 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
| Number of packages per unit | 1 carton | |
|---|---|---|
| Export carton dimensions | 910 x 810 x 610 mm | |
| Gross weight per carton | 35 kg | |
| Packaging volume per unit | 0.45 CBM | |
| Required assembly time | 50 minutes | |
| Inner packaging materials | Polyfoam edge protection, corrugated corner blocks, plastic dust bag, hardware kit with allen key | |
| 20ft full container load quantity | 60 units | |
| 40ft HQ full container load quantity | 150 units | |
| Reference Package Count | 1 set / 2 cartons | |
| Reference Assembly Time | 40 minutes per set |
Recommended spaces / users / usage modes
| Executive private office | Formal traditional styling matches professional C-suite and manager office environments for authoritative desk use | |
|---|---|---|
| Formal conference room seating | Upholstered comfort and professional finish suit end-of-table conference seating for board meetings | |
| Home office workspace | Mobile swivel design and padded support work for premium home office setups with traditional decor | |
| Law firm and financial office settings | Conservative dark leather and mahogany finish matches professional client-facing service industries | |
| Hotel business center use | Durable construction and formal appearance suit public business center workstations for guest use | |
| Executive desk pairing recommendation | Pairs with traditional mahogany or walnut executive desks 760 mm in height for aligned arm and work surface height | |
| 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 - safety requirements, applies to dimensional and safety validation for office task/executive seating | |
|---|---|---|
| EN 1335-2:2018 | Office furniture - Office work chairs - Part 2: Safety requirements, applies to structural stability, strength, and durability performance requirements | |
| EN 1021-1:2014 | Upholstered furniture - Ignitability of upholstered furniture - Part 1: Ignition source smouldering cigarette, applies to fire resistance testing for upholstered components | |
| EN 12520:2015 | Furniture - Strength, durability and safety - Requirements for domestic and contract seating, applies to structural performance validation for executive chairs |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Office Chairs - Tests for general purpose office chairs, applies to static load, fatigue, stability, and durability testing for commercial office seating products | |
|---|---|---|
| ANSI/BIFMA X5.11-2015 | Office Chairs - Tests for large occupant office chairs, applies if higher weight capacity ratings above 159 kg are specified |
Standards applicable to China-market projects
| GB/T 3326-2016 | Furniture - Chairs and stools for office use - Determination of dimensions, applies to dimensional validation for seat height, width, depth, and clearance measurements | |
|---|---|---|
| GB/T 10357.3-2013 | Test of mechanical properties of furniture - Strength and durability of chairs and stools, applies to static load, impact, and fatigue testing for structural safety | |
| GB 18584-2001 | Indoor decorating and refurbishing materials - Limit of harmful substances of wood based furniture, applies to formaldehyde emission limits for wood panels and trim components | |
| GB/T 19995.1-2005 | Office furniture - Office chairs, applies to general performance, safety, and structural requirements for commercial office seating |
This product must meet the following technical requirements: 1. GB/T 3326-2016: Furniture - Chairs and stools for office use - Determination of dimensions, applies to dimensional validation for seat height, width, depth, and clearance measurements; 2. GB/T 10357.3-2013: Test of mechanical properties of furniture - Strength and durability of chairs and stools, applies to static load, impact, and fatigue testing for structural safety; 3. GB 18584-2001: Indoor decorating and refurbishing materials - Limit of harmful substances of wood based furniture, applies to formaldehyde emission limits for wood panels and trim components; 4. GB/T 19995.1-2005: Office furniture - Office chairs, applies to general performance, safety, and structural requirements for commercial office seating; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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