| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| 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
| Desk static load capacity | 50 kg | |
|---|---|---|
| Desktop tilt lock positions | 6 | |
| Recommended user age range | 14 years | |
| Chair caster rolling durability | 20000 cycles | |
| Desktop surface abrasion resistance | 2000 cycles | |
| 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 | |
| Gas-lift Cycling Reference | Acceptance target 100000 cycles |
Core acceptance fields · Panels / hardware / frame / upholstery
| Desktop core | 18mm E0-grade particleboard | |
|---|---|---|
| Desktop edge banding | 2mm rounded PVC edge trim | |
| Desk frame and legs | 1.2mm thick powder-coated steel tube | |
| Structural plastic parts | ABS engineering plastic | |
| Chair seat and back padding | 40mm high-density polyurethane foam | |
| Chair upholstery | Breathable polyester mesh fabric | |
| Chair internal frame | 1.5mm thick steel tubular frame | |
| Chair casters | 50mm diameter PU soft casters | |
| Bookshelf panels | 15mm laminated MDF | |
| 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
| Crank-operated desk height adjustment | Manual hand crank lifts desktop between 540mm and 760mm, locks at any height | |
|---|---|---|
| Step-locked desktop tilting | Desktop tilts 60degrees with positive lock positions for writing, reading, and drawing | |
| Pull-out under-desk drawer | 350mm wide shallow drawer stores stationery and small school supplies under work surface | |
| Sliding adjustable backrest | Backrest slides vertically between 700mm and 950mm to support growing child lumbar and spine | |
| Swivel mobile chair base | 360-degree swivel five-star base with lockable casters for repositioning | |
| Divided integrated bookshelf | Multi-compartment upper shelf stores books, stationery, cups, and small decor items | |
| Bookend stop bar | Fixed lip on tilted desktop edge prevents books and pens from sliding during angled use | |
| Desktop tilt angle range | 60degrees | |
| Recline Angle / Lock Reference | 125° with 3suggested lock positions | |
| Tilt Tension User-weight Range | Reference adjustment coverage 120 kg | |
| 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
| Children's home study space | Sized for dedicated homework, reading and craft activity areas in family bedrooms | |
|---|---|---|
| After-school tutoring centers | Adjustable dimensions suit mixed-age student groups for extended study sessions | |
| Montessori learning environments | Ergonomic adjustability supports independent, comfortable upright sitting posture | |
| Children's bedroom multi-use zones | Compact footprint fits alongside wardrobes and beds without occupying excess floor space | |
| Home remote learning setup | Integrated storage keeps school supplies organized for daily online class use | |
| 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 1729-1:2015 | Applicable European safety standard for educational furniture seating strength and stability | |
|---|---|---|
| EN 1729-2:2015 | Applicable European standard for educational tables strength, durability and stability |
Standards applicable to China-market projects
| GB 28007-2011 | Applicable safety standard for children's furniture, covers structural safety and hazard requirements | |
|---|---|---|
| GB/T 3324-2017 | Applicable standard for wooden furniture general technical requirements for desk panels | |
| GB 18580-2017 | Applicable standard for formaldehyde emission limits for wood-based panel components |
This product must meet the following technical requirements: 1. GB 28007-2011: Applicable safety standard for children's furniture, covers structural safety and hazard requirements; 2. GB/T 3324-2017: Applicable standard for wooden furniture general technical requirements for desk panels; 3. GB 18580-2017: Applicable standard for formaldehyde emission limits for wood-based panel components; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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