| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 1750 x 680 x 810 mm | |
|---|---|---|
| Individual seat width | 500 mm | |
| Seat height from floor | 420 mm | |
| Armrest height from floor | 620 mm | |
| Backrest height above seat | 390 mm | |
| Seat depth per position | 440 mm | |
| Central support beam diameter | 80 mm | |
| Leg splay front-to-back | 680 mm | |
| Adjustable foot thread travel | 15 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
| Per-seat static load capacity | 200 kg | |
|---|---|---|
| Armrest vertical static load | 100 kg | |
| Net weight per 3-seat unit | 30 kg | |
| Powder coating thickness | 70 μm | |
| Finish abrasion resistance cycles | 5000 cycles | |
| Leveler adjustment load per foot | 200 kg | |
| Recommended service life | 8 years | |
| 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 |
Core acceptance fields · Panels / hardware / frame / upholstery
| Seat and back panels | 1.2 mm perforated cold-rolled steel sheet | |
|---|---|---|
| Central support beam | 1.8 mm wall pentagonal cold-drawn steel tube | |
| End armrests | 1.2 mm formed iron with polished chrome finish | |
| Support legs | 1.2 mm formed welded iron with splayed cantilever design | |
| Support brackets | 1.2 mm formed and welded steel assembly | |
| Pipe end caps | Injection-molded ABS plastic | |
| Adjustable leveling feet | Zinc-plated steel hardware cover with non-slip rubber base | |
| Surface finish | Electrostatic powder coating with anti-rust phosphating pretreatment | |
| Connection hardware | Grade 8.8 zinc-plated steel bolts and lock nuts | |
| 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
| Seating configuration | Fixed 3-position linear tandem seating on shared central beam | |
|---|---|---|
| Backrest support | Fixed ergonomic angled backrests with perforated ventilation holes | |
| Armrest layout | Curved end armrests at both outer seating positions | |
| Floor stabilization | Adjustable threaded rubber leveling feet compensate for uneven floor surfaces | |
| Surface drainage and ventilation | Punched perforations on seat and back panels allow air flow and liquid drainage | |
| Cleaning access | Smooth, gap-minimizing welded joints enable quick wipe-down sanitization | |
| Modular expansion | Beam ends support connection of additional seat units or accessory tables | |
| Floor protection | Rubber foot pads prevent hard floor scratching and reduce sliding | |
| Backrest recline angle from vertical | 10° | |
| 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 |
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 outpatient waiting areas | Sanitizable perforated metal surface meets high-traffic clinical hygiene requirements | |
|---|---|---|
| Airport, railway and bus station concourses | Heavy-duty steel construction withstands continuous public use | |
| Bank and public service hall reception areas | Neutral silver finish matches formal public service interior design | |
| Cinema and event venue lobbies | Fixed beam structure prevents unauthorized rearrangement | |
| Factory staff break areas | Water-resistant metal surface supports easy cleaning after heavy use | |
| Outdoor covered public queue zones | Powder-coated steel construction resists mild moisture exposure | |
| 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 | Non-domestic seating strength, durability and safety requirements for public seating | |
|---|---|---|
| EN 1022:2018 | Furniture seating determination of stability, applicable for anti-tip verification |
US and Canada office-furniture standards
| ANSI/BIFMA X5.4-2020 | Lounge and public seating standard for strength, durability and stability |
|---|
Standards applicable to China-market projects
| GB/T 3324-2017 | General technical requirements for metal furniture, applicable to structural safety and finish | |
|---|---|---|
| GB/T 10357.3-2013 | Furniture mechanical test for chair seat and back static load, applicable for load verification | |
| GB/T 10357.6-2013 | Furniture mechanical test for chair armrest static load, applicable for arm strength verification | |
| GB 18584-2001 | Indoor decorating material limit of harmful substances for wooden furniture, reference for coating emissions |
This product must meet the following technical requirements: 1. GB/T 3324-2017: General technical requirements for metal furniture, applicable to structural safety and finish; 2. GB/T 10357.3-2013: Furniture mechanical test for chair seat and back static load, applicable for load verification; 3. GB/T 10357.6-2013: Furniture mechanical test for chair armrest static load, applicable for arm strength verification; 4. GB 18584-2001: Indoor decorating material limit of harmful substances for wooden furniture, reference for coating emissions; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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