| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 480 x 545 x 880 mm | |
|---|---|---|
| Seat width | 445 mm | |
| Seat depth | 460 mm | |
| Seat height from floor | 460 mm | |
| Backrest top width | 430 mm | |
| Backrest height above seat | 470 mm | |
| Front leg stance width | 480 mm | |
| Waterfall front seat edge thickness | 50 mm | |
| Leg tube outer diameter | 22 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
| Unit net weight | 9.7 kg | |
|---|---|---|
| Static seat load capacity | 204 kg | |
| Maximum vertical stack height | 36 chairs | |
| Seat foam density | 45 kg/m³ | |
| Seat foam compression set | 5.5% | |
| Upholstery abrasion resistance | 50000 double rubs | |
| Frame static load rating | 150 kg | |
| Recommended user weight limit | 150 kg | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% | |
| Back Foam Density Reference | 38 kg/m³ |
Core acceptance fields · Panels / hardware / frame / upholstery
| Backrest shell | Injection-molded virgin PP engineering plastic | |
|---|---|---|
| Seat cushion core | High-density polyurethane foam | |
| Seat upholstery | Woven commercial polyester fabric | |
| Frame tubing | 1.5mm thick cold-rolled steel tube | |
| Frame finish | Electrostatic powder coating | |
| Floor glides | Injection-molded nylon plastic | |
| Back reinforcement | Internal molded PP rib structure | |
| Seat support panel | Molded PP seat pan | |
| Seat Internal Support Board Thickness | 14 mm bent plywood or equivalent support board | |
| Backrest Internal Frame Thickness | 14 mm bent plywood/composite reinforced frame | |
| Gas-lift Engineering Specification | Recommended Class 4; outer tube 50 mm; stroke 100 mm | |
| Tilt Mechanism Plate Thickness | 2.5 mm cold-rolled steel |
Adjustment / rotation / tilt / mobility / storage features
| Stacking storage | Vertical nesting via profiled splayed legs | |
|---|---|---|
| Integrated carry handles | Dual lower back cutouts for two-hand transport | |
| Fixed seating position | Non-adjustable fixed seat and back angle | |
| Optional row linking | Compatible with nylon ganging clips | |
| Ergonomic lumbar support | Contoured curved backrest with lumbar curve | |
| Floor protection | Replaceable nylon glides prevent floor scratching | |
| Waterfall seat edge | Curved front seat edge reduces leg pressure | |
| Recline Angle / Lock Reference | 125° with 3suggested lock positions | |
| Tilt Tension User-weight Range | Reference adjustment coverage 120 kg | |
| Height Adjustment Stroke | 100 mm continuous travel | |
| 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
| Office conference rooms | Stackable armless design enables flexible seating arrangements for meetings | |
|---|---|---|
| Training and seminar spaces | Lightweight carry handles allow fast room reconfiguration between sessions | |
| Reception and waiting areas | Clean modern aesthetic matches commercial office reception decor | |
| Public event venues | Durable construction supports high-traffic temporary seating use | |
| Co-working open spaces | Compact footprint maximizes seating density in shared work areas | |
| Breakroom and cafeteria seating | Easy-clean fabric and sturdy frame suit daily casual dining use | |
| 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 16139:2013 | Strength, durability and stability for non-domestic seating | |
|---|---|---|
| EN 1022:2018 | Stability testing for seating furniture |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | American national standard for office chairs, general-purpose seating requirements | |
|---|---|---|
| ANSI/BIFMA e3-2019 | Sustainability standard for low-emission commercial furniture materials |
Standards applicable to China-market projects
| GB/T 3324-2017 | General technical requirements for metal furniture, applicable to steel frame durability | |
|---|---|---|
| GB/T 35607-2017 | Limits of harmful substances for furniture upholstery fabrics | |
| GB/T 35450-2017 | General technical requirements for public seating in office and public spaces |
This product must meet the following technical requirements: 1. GB/T 3324-2017: General technical requirements for metal furniture, applicable to steel frame durability; 2. GB/T 35607-2017: Limits of harmful substances for furniture upholstery fabrics; 3. GB/T 35450-2017: General technical requirements for public seating in office and public spaces; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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