| Submitted | Field | Original | 修改后参数 | Note / Status |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions (W×D×H) | 620 × 650 × 1040 mm | |
|---|---|---|
| Seat height from floor | 450 mm | |
| Seat usable dimensions (W×D) | 490 × 470 mm | |
| Seat cushion thickness | 60 mm | |
| Total backrest height | 580 mm | |
| Upper backrest section (W×H) | 480 × 280 mm | |
| Lower backrest section (W×H) | 480 × 200 mm | |
| Armrest height above seat surface | 210 mm | |
| Cantilever sled base footprint (W×D) | 570 × 540 mm | |
| Integrated lumbar pad thickness | 30 mm | |
| Under-seat knee clearance height | ≥180 mm | |
| Finished Seat Cushion Thickness | 90mm | |
| Backrest Padding Thickness | 70mm | |
| Lumbar Support Zone Height | 240mm | |
| Clear Width Between Armrests | 540mm |
Net weight / load capacity / users / durability
| Net weight range | 14kg | |
|---|---|---|
| Recommended static seat load capacity | 136 kg (300 lbs) | |
| Seat cushion foam density | 45kg/m³ high resilience molded foam | |
| Back mesh fabric tensile strength | ≥350 N warp/weft | |
| Cantilever frame static bending load rating | ≥1500 N vertical load without permanent deformation | |
| Recommended product service life | 8 years under standard 8-hour daily office use | |
| Seam stitch strength | ≥70 N per stitch | |
| Floor glide abrasion resistance | ≥2000 cycles of repositioning on hard tile/wood floors without scratch damage | |
| Seat Foam Density / Rebound Reference | 45kg/m³ / 65% | |
| Back Foam Density Reference | 38kg/m³ |
Core acceptance fields · Panels / hardware / frame / upholstery
| Backrest upholstery | Black breathable warp-knitted polyester mesh, tensioned over PP back frames | |
|---|---|---|
| Integrated lumbar support | Contoured padded PP core with fabric wrap, fixed position on lower back | |
| Seat cushion core | High-resilience molded polyurethane foam, contoured waterfall front edge | |
| Seat underside pan | Black reinforced polypropylene structural shell | |
| Armrests | Fixed T-shaped rigid polypropylene armrests, matte black finish, mounted to seat frame | |
| Support frame | 16mm diameter 1.5mm wall thickness black powder-coated steel tubular cantilever sled base | |
| Floor glides | Injection-molded nylon anti-scratch glides, press-fit to base tube ends | |
| Back support brackets | Reinforced PP connection brackets linking dual back sections to seat frame | |
| Upper backrest upholstery | Black breathable warp-knitted polyester mesh, 3mm thickness, tension-mounted over rigid PP back frame with uniform tautness | |
| Lower backrest upholstery | Black breathable warp-knitted polyester mesh, matched to upper back weave, mounted on PP lower frame with integrated lumbar protrusion | |
| Seat upholstery face | 0.8mm thick matte black polyurethane or breathable woven fabric laminate over foam, uniform stitching at edges | |
| Hardware fasteners | Grade 4.8 black zinc-plated steel bolts and nuts, rust-resistant coating for indoor office use |
Adjustment / rotation / tilt / mobility / storage features
| Seating structure | Fixed cantilever sled base, no swivel, no tilt, no height adjustment | |
|---|---|---|
| Back support design | Dual-section independent mesh back with fixed integrated lumbar pad, supports natural spine S-curve without manual adjustment | |
| Armrest function | Fixed position armrests, provide stable forearm support during meetings and desk work, no height/pivot/width adjustment | |
| Seat ergonomics | Waterfall contoured seat front edge, reduces pressure on back of thighs during extended seated periods | |
| Floor protection | Smooth nylon glides enable gentle repositioning on hard floors without scratching, no casters installed | |
| Frame flex design | Cantilever frame provides controlled 5 degrees of passive flex when leaning back for improved comfort without mechanical tilt components | |
| Seating mobility structure | Fixed cantilever sled base with no swivel, no tilt mechanism, no gas lift height adjustment, designed for static conference/guest seating | |
| Armrest support function | Fixed-position T-armrests, provide 210mm forearm support height above seat for meetings and short-duration desk work, no height/pivot/width/ depth adjustment | |
| Seat ergonomic function | Waterfall contoured seat front edge, reduces 20% of pressure on posterior thigh tissues during seated periods up to 4 hours | |
| Floor protection function | Smooth nylon glides allow low-force repositioning (≤15N push force) on hard wood, tile and low-pile carpet floors without scratching, no casters fitted | |
| Frame flex comfort function | Tubular steel cantilever frame provides controlled 5 degrees of passive rear flex when user leans back, delivers dynamic comfort without mechanical tilt components | |
| Ventilation function | Tensioned mesh back panels allow 30%+ air permeability through the backrest, reduces heat buildup during extended seated meetings |
Verified carton / gross weight / assembly / loading data
| Reference Package Count | 1 set / 2 cartons | |
|---|---|---|
| Reference Assembly Time | 40minutes per set | |
| Reference Carton Dimensions | 850 × 420 × 720mm | |
| Reference Packaged Gross Weight | 23kg/set | |
| Reference Carton Volume | 0.26m³/set | |
| Indicative 20GP Loading | 135 sets at 85% space utilization | |
| Indicative 40HQ Loading | 320 sets at 85% space utilization |
Recommended spaces / users / usage modes
| Corporate conference rooms | Cantilever sled design allows easy push-in under 760mm conference tables, breathable mesh back supports occupants during meetings up to 4 hours, fixed base prevents disruptive swiveling | |
|---|---|---|
| Open office guest seating | Compact footprint and professional black finish suit visitor seating at workstations or reception areas | |
| Training room seating | Fixed non-swivel base reduces distraction during training sessions, durable frame withstands frequent repositioning | |
| Home office secondary seating | Neutral black aesthetic and ergonomic support suit temporary or daily home office use without requiring task chair adjustment features | |
| Recommended pairing surfaces | Compatible with standard 760mm height office desks and conference tables, armrest height fits under most standard table aprons | |
| Open office visitor/guest seating | Compact 620mm width footprint and matte black professional finish suit visitor seating placed adjacent to employee workstations or reception lounge areas | |
| Corporate training room seating | Fixed non-swivel base reduces attendee distraction during training sessions, durable welded steel frame withstands frequent repositioning between sessions | |
| Reception and waiting areas | Curved dual-back ergonomic design provides comfortable support for waiting visitors, non-marking glides protect polished lobby floors |
European market access and chemical requirements
| EN 1335-2:2018 | European standard for office work chairs: safety requirements, applicable reference for structural stability and load testing for contract office use | |
|---|---|---|
| EN 1335-3:2018 | European standard for office work chairs: test methods, applicable reference to verify structural durability and safety performance | |
| EN 1022:2018 | European standard for domestic and contract seating: determination of stability, applicable reference to verify anti-tipping performance of the cantilever sled base |
US and Canada office-furniture standards
Standards applicable to China-market projects
| GB/T 3326-2016 | Recommended standard for office furniture: desk, chair and stool dimensions, applicable to verify seat height, depth and back size compliance for general office use | |
|---|---|---|
| GB/T 35607-2017 | Recommended national standard for green product evaluation of furniture, applicable for formaldehyde and harmful substance limits of foam and fabric components | |
| GB 28007-2011 | National standard for general technical requirements for children's furniture does NOT apply to this commercial office seating product | |
| GB/T 10357.3-2013 | National standard for furniture mechanical property testing: strength and durability of chairs and stools, applicable reference for static load, impact and fatigue testing of frame and seat structure |
This product must meet the following technical requirements: 1. GB/T 3326-2016: Recommended standard for office furniture: desk, chair and stool dimensions, applicable to verify seat height, depth and back size compliance for general office use; 2. GB/T 35607-2017: Recommended national standard for green product evaluation of furniture, applicable for formaldehyde and harmful substance limits of foam and fabric components; 3. GB 28007-2011: National standard for general technical requirements for children's furniture does NOT apply to this commercial office seating product; 4. GB/T 10357.3-2013: National standard for furniture mechanical property testing: strength and durability of chairs and stools, applicable reference for static load, impact and fatigue testing of frame and seat structure; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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