| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions (W x D x H) | 540 x 580 x 820 mm | |
|---|---|---|
| Seat height (floor to top of cushion) | 460 mm | |
| Seat width (between side supports) | 480 mm | |
| Seat depth (front edge to backrest) | 420 mm | |
| Backrest total height (seat top to top of back) | 390 mm | |
| Backrest width | 470 mm | |
| Backrest center lumbar cutout dimensions | 220 x 180 mm | |
| Sled base footprint (W x D) | 540 x 560 mm | |
| Seat cushion thickness | 40 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 | 6.8 kg | |
|---|---|---|
| Static load rating (seat) | 110 kg | |
| Stacking capacity (vertical stack) | 10 chairs | |
| Foam density (seat cushion) | 35 kg/m³ | |
| Fabric abrasion resistance (Martindale) | 25000 cycles | |
| Sled base static load capacity | 150 kg | |
| Backrest impact resistance | 100 J | |
| Foam compression set (after 50% compression for 22h) | 10 % | |
| 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 | One-piece injection-molded polypropylene (PP), light gray matte finish | |
|---|---|---|
| Seat shell base | Injection-molded polypropylene, matching backrest color and finish | |
| Seat cushion | Polyurethane foam pad with woven fabric upholstery, light gray textured weave | |
| Sled frame | Chrome-plated carbon steel round tube, polished reflective finish | |
| Frame tube diameter | 19 mm | |
| Glide feet | Integrated plastic floor glides at bottom of sled rails | |
| Back-to-seat connection | Plastic shell integrated structural ribs with metal bracket fasteners to frame | |
| Frame tube outer diameter | 19 mm round tube with 1.2 mm wall thickness | |
| Upholstery attachment | Fabric stapled to seat shell perimeter with hidden staple line under plastic edge trim | |
| 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 |
Adjustment / rotation / tilt / mobility / storage features
| Stacking function | Vertical nesting stacking via molded backrest and seat shell geometry; up to 10 units high for storage | |
|---|---|---|
| Floor glide system | Fixed non-marring glides on both ends of each sled rail; supports sliding on hard and carpeted floors | |
| Lumbar ventilation feature | Central rectangular cutout in lower backrest improves air circulation and reduces back heat buildup | |
| Armless design | No armrests; allows unobstructed side access and maximum seating flexibility in narrow conference layouts | |
| Sled base stability | Two parallel curved steel rails distribute weight and resist tipping; 560 mm deep footprint ensures forward/backward balance | |
| Multi-surface compatibility | Smooth chrome rails with plastic glides suitable for carpet, laminate, tile and wood floors without damaging surfaces | |
| Fixed lumbar support | Integrated molded polypropylene lumbar pad protruding 30mm from backrest inner surface; provides static lower back support for 4-hour seating durations | |
| Ventilation gap design | 220mm wide horizontal ventilation slot above lumbar pad improves back air circulation and reduces heat buildup during prolonged sitting | |
| Waterfall seat edge | Curved 20mm radius front seat edge reduces thigh compression and improves blood circulation for short-duration seating | |
| Recline Angle / Lock Reference | 125° with 3 suggested lock positions | |
| Tilt Tension User-weight Range | Reference adjustment coverage 120 kg | |
| Height Adjustment Stroke | 100 mm continuous travel |
Verified carton / gross weight / assembly / loading data
| Packaging unit (stacked) | 4 chairs per carton | |
|---|---|---|
| Master carton dimensions (L x W x H) | 600 x 560 x 1050 mm | |
| Gross weight per carton | 30 kg | |
| Cubic volume per carton | 0.353 m³ | |
| Assembly requirement | Fully assembled, no on-site assembly required | |
| 20ft container loading quantity | 320 chairs (80 cartons of 4) | |
| 20ft GP container loading quantity | 320 chairs (80 cartons of 4) | |
| Warranty period (commercial use) | 2 years | |
| Color options available | 3 colors (light gray, dark gray, black) | |
| Reference Package Count | 1 set / 2 cartons |
Recommended spaces / users / usage modes
| Conference and meeting rooms | Suitable for boardrooms and training rooms requiring flexible seating arrangement and compact storage when not in use | |
|---|---|---|
| Office visitor areas | Ideal for reception lounges and guest seating outside executive offices due to clean modern appearance and durable plastic shell | |
| Canteen and break rooms | Appropriate for staff dining areas where easy cleaning and moisture-resistant backrests are required | |
| Training and classroom environments | Suitable for seminar and lecture setups where chairs need to be moved and stacked frequently between sessions | |
| Co-working shared spaces | Well-suited for hot-desking and flexible work zones that demand scalable seating with minimal storage footprint | |
| Corporate conference and meeting rooms | Suitable for boardrooms and small-to-medium meeting rooms requiring flexible seating arrangement and compact storage when not in use | |
| Office visitor and reception areas | Ideal for reception lounges and guest seating outside executive offices due to clean modern appearance and stain-resistant plastic backrest | |
| Staff canteen and break rooms | Appropriate for staff dining areas where easy cleaning and moisture-resistant surfaces are required for daily use |
EU Market Access Requirements* EN Standards
| EN 12520:2015 | Applicable for furniture strength, durability and safety requirements for seating in non-domestic use, category 2 medium duty | |
|---|---|---|
| EN 1022:2018 | Applicable for seating stability determination under static loading conditions |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Applicable for general purpose office chairs static load, durability and stability testing | |
|---|---|---|
| BIFMA X6.1-2012 | Applicable for educational seating ergonomics and performance requirements |
Standards applicable to China-market projects
| GB/T 3326-2016 | Applicable for furniture seat, back and arm strength and durability test methods for chairs and stools | |
|---|---|---|
| GB 18401-2010 Class B | Applicable for upholstery fabric formaldehyde and harmful substance safety requirements | |
| GB/T 10357.2-2013 | Applicable for furniture chair stability testing under static load conditions |
This product must meet the following technical requirements: 1. GB/T 3326-2016: Applicable for furniture seat, back and arm strength and durability test methods for chairs and stools; 2. GB 18401-2010 Class B: Applicable for upholstery fabric formaldehyde and harmful substance safety requirements; 3. GB/T 10357.2-2013: Applicable for furniture chair stability testing under static load conditions; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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