| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| overall dimensions | 1830 x 768 x 890 mm | |
|---|---|---|
| seat height | 420 mm | |
| single seat width | 580 mm | |
| seat depth | 480 mm | |
| backrest height | 600 mm | |
| molded PU seat/back thickness | 30 mm | |
| main support beam profile | 90 x 80 mm octagonal cold-rolled steel | |
| beam wall thickness | 2.0 mm | |
| leg/armrest tube thickness | 2.0 mm | |
| internal seat substrate thickness | 1.5 mm | |
| armrest height above seat | 220 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
| unit net weight reference | 28 kg | |
|---|---|---|
| recommended static load per seat | 150 kg | |
| seating capacity | 3 adults | |
| PU foam density | 450 kg/m³ | |
| PU foam rebound rate | 40% | |
| PU surface abrasion resistance | 100000 Martindale rubs | |
| PU compression fatigue resistance | 500000 cycles | |
| seam pitch for armrest padding | 30 mm | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% | |
| Back Foam Density Reference | 38 kg/m³ |
Core acceptance fields · Panels / hardware / frame / upholstery
| seat and back shells | One-piece molded self-skin blue polyurethane over steel substrate | |
|---|---|---|
| main structural beam | Cold-rolled octagonal steel, acid-rust treated, electrostatic powder coated silver-gray | |
| support legs | Cold-rolled tubular steel, silver-gray powder coated, fitted with polymer floor glides | |
| armrest supports | Bent cold-rolled steel tube with chrome/silver finish | |
| armrest pads | Molded polyurethane padding matching blue seat color | |
| internal seat reinforcement | 1.5mm thick flat steel plate affixed to beam with bolted connections | |
| floor glides | Non-marking black polymer, press-fit to leg bottoms | |
| surface finish on metal parts | Smooth matte silver-gray powder coating with anti-oxidation treatment | |
| 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
| fixed linked structure | All three seats rigidly mounted to a single continuous beam, no folding or rotation | |
|---|---|---|
| armrest separation | Four padded armrests divide seats into three individual seating positions | |
| contoured ergonomic support | Molded seat pans and backrests have curved waterfall edges and lumbar contour | |
| non-marking floor protection | Polymer glides at each leg prevent floor scratching and distribute weight evenly | |
| easy-clean hygienic surface | Seamless PU surfaces allow full disinfection suitable for medical/public spaces | |
| modular configuration compatibility | Beam mounting system supports add-on tables or alternate seat counts per line options | |
| floor clearance | 150 mm clearance under seat beam allows routine floor cleaning without moving unit | |
| 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
| hospital clinic waiting areas | Durable, easy-clean PU surfaces support high-turnover medical use with frequent disinfection | |
|---|---|---|
| airport/transit station waiting zones | Rigid beam structure withstands heavy public use and continuous high foot traffic | |
| office reception/waiting rooms | Neutral blue finish and armrest dividers provide professional visitor seating | |
| bank/public service lobbies | Fixed linked seating prevents unauthorized rearrangement in public service spaces | |
| school/university administrative areas | Sturdy construction supports long-term use in high-traffic student service zones | |
| 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, applicable for public use tests | |
|---|---|---|
| EN 13722:2004 | Furniture – Assessment of surface resistance to cold liquids for easy-clean PU surfaces |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | General purpose office chairs, applicable as structural performance reference for public seating |
|---|
Standards applicable to China-market projects
| GB/T 3325-2017 | General technical requirements for metal furniture, applicable to structural stability and finish |
|---|
This product must meet the following technical requirements: 1. GB/T 3325-2017: General technical requirements for metal furniture, applicable to structural stability and finish; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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