| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 700 x 720 x 1260 mm | |
|---|---|---|
| Seat height adjustment range | 570 mm | |
| Seat cushion dimensions | 540 x 540 mm | |
| Backrest total height | 780 mm | |
| Integrated headrest section dimensions | 490 x 200 mm | |
| Armrest height above seat | 220 mm | |
| Five-star base diameter (spread) | 700 mm | |
| Caster diameter | 60 mm | |
| Gas lift exposed cylinder diameter | 50 mm | |
| Seat front edge waterfall thickness | 80 mm | |
| Maximum seat height (floor to seat top) | 570 mm | |
| Seat cushion usable surface | 540 x 540 mm | |
| Backrest total height (seat surface to back top) | 780 mm | |
| Integrated headrest pad dimensions | 490 x 200 mm | |
| Armrest height above seat surface | 220 mm | |
| Five-star base radial spread (diameter) | 700 mm |
Net weight / load capacity / users / durability
| Net weight range | 21 kg | |
|---|---|---|
| Recommended maximum user weight | 181 kg | |
| Recommended daily usage duration | 8 hours | |
| Swivel rotation range | 360 degrees | |
| Tilt angle range | 120 degrees | |
| Caster rolling durability | 100000 cycles | |
| Gas lift cycle durability | 120000 cycles | |
| Net product weight | 21 kg | |
| Maximum rated user weight | 181 kg | |
| Recommended daily continuous usage duration | 8 hours |
Core acceptance fields · Panels / hardware / frame / upholstery
| Seat and back upholstery | Black smooth padded upholstery (genuine leather/PU/bonded leather options available) | |
|---|---|---|
| Seat internal support board | 18 mm thick multi-layer plywood | |
| Seat cushion foam | 50D high-density polyurethane foam | |
| Backrest foam | 35D high-resilience polyurethane foam | |
| Five-star base | Polished cast aluminum alloy, 3mm wall thickness | |
| Armrests | Curved support frame with matte white accent panel, top padded with matching black upholstery | |
| Tilt mechanism | 3mm thick steel plate with black powder coat finish | |
| Gas lift cylinder | Chrome-plated steel, Class 3 heavy-duty pneumatic lift | |
| Casters | 60mm dual-wheel black PU casters with chrome mounting stems | |
| Internal support frame | 1.5mm thick welded steel tube frame inside backrest | |
| Seat internal support substrate | 18 mm thick multi-layer hardwood plywood, formaldehyde emission E1 grade | |
| Seat cushion padding | 50D high-density molded polyurethane foam, 80mm thick at front edge |
Adjustment / rotation / tilt / mobility / storage features
| Pneumatic seat height adjustment | Class 3 gas lift provides 120mm vertical travel, adjusted via side lever under seat to fit 760 mm standard desk heights | |
|---|---|---|
| Tilt recline function | Center-tilt mechanism allows backrest and seat to recline together, with adjustable tilt tension knob to match user weight, lockable in upright position | |
| Fixed padded armrest support | Curved fixed armrests provide stable forearm support at 220mm above seat, white accent panels create modern two-tone aesthetic | |
| Mobility on casters | Five dual-wheel PU casters roll smoothly over hard floors and low-pile carpet, evenly distribute weight to prevent floor damage | |
| Integrated head support | Tall high-back design includes a padded upper headrest section aligned to support the neck and upper back during upright sitting and slight recline | |
| Waterfall seat edge | Curved front seat edge reduces pressure on the back of the thighs to improve circulation during extended seated work | |
| Center-tilt recline function | Synchro-tilt mechanism allows backrest to recline at 2:1 ratio relative to seat pan, with adjustable spring tension knob to match 181 kg user weight, lockable in fully upright position | |
| Omnidirectional mobility | Five dual-wheel PU casters provide 360-degree smooth rolling over hard flooring and low-pile carpet, even weight distribution prevents floor scuffing and indentation | |
| Integrated head and neck support | Tall high-back design includes a contoured padded upper headrest section aligned to support the cervical spine during upright sitting and full recline, eliminating neck strain during extended work sessions | |
| Waterfall seat edge pressure relief | Curved rounded front seat edge distributes thigh weight evenly to reduce popliteal compression and lower leg circulation restriction during 8+ hours of seated work | |
| 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
| Packaging unit | 1 unit per corrugated carton, knockdown assembly required | |
|---|---|---|
| Shipping carton dimensions | 950 x 500 x 700 mm | |
| Gross shipping weight | 25 kg | |
| assembly time | 30 minutes | |
| 20GP container loading quantity | 101 units | |
| 40HQ container loading quantity | 250 units | |
| 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 |
Recommended spaces / users / usage modes
| Executive private offices | High-back formal design matches senior management office aesthetics, provides full-day support for desk work, meetings and phone calls | |
|---|---|---|
| Corporate boardrooms and conference rooms | Formal leather-look appearance is appropriate for high-level meeting spaces, swivel and tilt function supports long meeting sessions | |
| Premium home office setups | Contemporary black and white color scheme complements modern residential interiors, caster base provides smooth mobility for mixed work, video calls and personal use | |
| Managerial open-plan workstations | Stable five-star base and commercial-grade construction withstand regular daily use in open office management zones, polished finish is easy to clean and maintain | |
| Client reception meeting areas | Premium padded design creates a professional impression for visiting clients, ergonomic support keeps guests comfortable during extended consultations | |
| 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, specifies dimensional requirements for ergonomic office seating | |
|---|---|---|
| EN 1335-2:2018 | Office furniture - Office work chairs - Part 2: Safety requirements, specifies structural safety and strength requirements for office chairs | |
| EN 1335-3:2009 | Office furniture - Office work chairs - Part 3: Test methods, specifies test procedures for verifying safety and durability |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 Clause 5 | Back strength test: applies 890 N force to backrest to verify structural integrity under recline loads | |
|---|---|---|
| Base static load rating | 1136 kg |
Standards applicable to China-market projects
| GB/T 3326-2016 | General technical requirement for furniture: tables and chairs, specifies dimensional tolerances and structural stability requirements for office seating | |
|---|---|---|
| GB/T 19995.1-2005 | Office furniture seating performance test methods, specifies test procedures for strength, durability and stability of office chairs | |
| GB 18584-2001 | Limit of harmful substances in wooden furniture, specifies formaldehyde emission limits for internal plywood components |
This product must meet the following technical requirements: 1. GB/T 3326-2016: General technical requirement for furniture: tables and chairs, specifies dimensional tolerances and structural stability requirements for office seating; 2. GB/T 19995.1-2005: Office furniture seating performance test methods, specifies test procedures for strength, durability and stability of office chairs; 3. GB 18584-2001: Limit of harmful substances in wooden furniture, specifies formaldehyde emission limits for internal plywood components; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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