| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 480 x 545 x 888 mm | |
|---|---|---|
| Seat height | 460 mm | |
| Backrest height above seat | 470 mm | |
| Front seat width | 454 mm | |
| Upper backrest width | 420 mm | |
| Leg base front width | 480 mm | |
| Seat depth | 460 mm | |
| Leg tube diameter | 30 mm | |
| Seat shell thickness | 3 mm | |
| Floor glide diameter | 30 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 weight per chair | 11.3 kg | |
|---|---|---|
| Static weight capacity | 349 kg | |
| Maximum floor stack height | 12 chairs | |
| Backrest flex rating | 100000 flex cycles | |
| Frame static load rating | 450 kg | |
| Seat shell impact resistance | 10 kg drop from 1m | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% | |
| Back Foam Density Reference | 38 kg/m³ | |
| Upholstery Thickness / Abrasion Reference | 1.4 mm / 50000 cycles | |
| Five-star Base Static Load Reference | Acceptance target ≥120 kg; chair reference load 150 kg |
Core acceptance fields · Panels / hardware / frame / upholstery
| Seat and back shell | Injection-molded polypropylene, perforated ventilation pattern | |
|---|---|---|
| Leg frame | 18-gauge tubular steel, white powder-coated finish | |
| Floor glides | Non-marring injection-molded plastic, press-fit to leg ends | |
| Seat shell surface | Matte textured finish, scratch and dent resistant | |
| Frame weld points | TIG welded at seat shell mounting points, powder coated over welds | |
| Perforation pattern | Uniform rounded vent holes across backrest for airflow | |
| Seat edge | Contoured waterfall front edge to reduce leg pressure | |
| 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 | |
| Five-star Base Material Thickness | Metal base wall 3.5 mm; diameter 700 mm |
Adjustment / rotation / tilt / mobility / storage features
| Vertical stacking capability | Chairs nest vertically for compact storage, up to 12 units per floor stack | |
|---|---|---|
| Breathable back support | Perforated backrest allows constant airflow for extended sitting comfort | |
| Non-adjustable fixed structure | No height adjustment, swivel, or recline mechanisms for low-maintenance use | |
| Hard floor protection | Smooth plastic glides prevent scratches on tile, wood, and vinyl flooring | |
| Lightweight portability | Integrated structural cutouts at seat-back junction reduce weight for easy movement | |
| Easy cleaning | Smooth non-porous polypropylene surface wipes clean with standard solvent or water-based cleaners | |
| 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 meeting and visitor spaces | Suitable for conference rooms, reception areas, and waiting rooms with stackable storage for high-turnover events | |
|---|---|---|
| Residential dining areas | Compact armless design fits standard 750mm height dining tables for everyday home dining use | |
| Event and function venues | Lightweight, stackable design supports fast setup and breakdown for banquets, training sessions, and temporary events | |
| Educational and classroom spaces | Durable scratch-resistant construction withstands heavy daily use in schools and training centers | |
| Outdoor temporary covered use | Weather-resistant polypropylene shell can be used in covered patios and temporary outdoor event spaces | |
| Breakroom and cafeteria spaces | Easy-to-clean surface supports frequent use in office and school cafeteria dining areas | |
| 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 | Furniture - Strength, durability and safety for non-domestic seating, recommended specification for commercial office/visitor seating applications | |
|---|---|---|
| EN 1022:2018 | Furniture - Seating - Determination of stability, recommended test method to verify four-leg chair tipping resistance | |
| EN 12520:2015 | Furniture - Strength, durability and safety for domestic seating, recommended specification for residential dining/home use |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Standard for office chairs, recommended performance benchmark for commercial visitor/meeting side chair applications | |
|---|---|---|
| ANSI/BIFMA e3-2019 | Furniture sustainability standard, optional low-emission material verification requirement for LEED projects |
Standards applicable to China-market projects
| GB/T 3324-2017 | General technical requirements for wooden furniture, applicable only to non-structural surface quality checks for furniture used in general indoor spaces | |
|---|---|---|
| GB/T 10357.2-2013 | Furniture mechanical performance test for chair and stool stability, recommended for static stability verification of four-leg side chairs | |
| GB/T 10357.3-2013 | Furniture mechanical performance test for chair and stool strength and durability, recommended for backrest and seat load testing |
This product must meet the following technical requirements: 1. GB/T 3324-2017: General technical requirements for wooden furniture, applicable only to non-structural surface quality checks for furniture used in general indoor spaces; 2. GB/T 10357.2-2013: Furniture mechanical performance test for chair and stool stability, recommended for static stability verification of four-leg side chairs; 3. GB/T 10357.3-2013: Furniture mechanical performance test for chair and stool strength and durability, recommended for backrest and seat load testing; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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