| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall desk dimensions | 660 x 466 x 760 mm | |
|---|---|---|
| Knee clearance under desk | 600 mm | |
| Under-desk open shelf dimensions | 580 x 380 x 150 mm | |
| Overall chair dimensions | 440 x 420 x 780 mm | |
| Chair seat dimensions | 440 x 420 mm | |
| Chair seat height from floor | 460 mm | |
| Chair backrest dimensions | 400 x 170 mm | |
| Frame tube diameter (desk and chair) | 38 mm | |
| Desktop panel thickness | 18 mm | |
| Seat and back panel thickness | 16 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 set | 15 kg | |
|---|---|---|
| Recommended static user load | 150 kg | |
| Desktop impact resistance | 15 J | |
| Frame static load capacity | 200 kg | |
| Warranty period | 5 years | |
| Anti-slip foot cap vertical load per leg | 50 kg | |
| 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 |
Core acceptance fields · Panels / hardware / frame / upholstery
| Desktop panel | 18 mm E1-grade melamine-laminated MDF, wear-resistant sealed edges | |
|---|---|---|
| Desk and chair frame | 1.2 mm wall cold-rolled round steel tube, white electrostatic powder coat | |
| Seat and backrest panels | 16 mm rigid molded PP composite, light grey matte finish | |
| Under-desk shelf | 1.0 mm cold-rolled steel sheet, grey painted finish | |
| Foot caps | Black injection-molded PP, non-slip wear-resistant base | |
| Frame weld joints | Full-arc welded connections, ground smooth before powder coating | |
| Frame cross bracing | 20 mm round steel tube, welded to leg assemblies for lateral rigidity | |
| 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 | |
| Five-star Base Material Thickness | Metal base wall 3.5 mm; diameter 700 mm |
Adjustment / rotation / tilt / mobility / storage features
| Fixed height configuration | Non-adjustable fixed seat and desk height, optimized for middle-grade student use | |
|---|---|---|
| Under-desk open storage | Fixed open front-access shelf for storing backpacks, books and stationery items | |
| Chair tuck-under design | Compact chair footprint fits fully under the desk to save classroom floor space when not in use | |
| Floor protection | Non-slip PP foot caps on all 8 frame legs prevent floor scuffing and lateral sliding | |
| Structural stability | Welded cross-braced desk frame resists lateral wobble during regular writing and study use | |
| Easy cleaning | Smooth sealed panel and powder-coated frame surfaces allow quick wipe-down for daily classroom maintenance | |
| 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
| K-12 classroom deployment | Fixed durable configuration suitable for daily use in primary and secondary school classrooms | |
|---|---|---|
| Tutoring center study spaces | Compact footprint allows high-density seating for after-school training and tutoring facilities | |
| Home study area for students | Neutral light grey color scheme and simple structure fit residential bedrooms or home study rooms | |
| Exam hall seating | Rigid non-adjustable design meets standardized exam room requirements for uniform seating height | |
| 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 | Safety and strength requirements for educational seating, applicable for student chair performance | |
|---|---|---|
| EN 1729-2:2012 | Functional dimensions for educational furniture, applicable for desk/chair ergonomic sizing | |
| EN 12521:2015 | Strength, durability and safety requirements for domestic and contract tables |
Standards applicable to China-market projects
| GB/T 3976-2014 | Size and functional requirements for school desks and chairs, applicable for primary/secondary classroom use | |
|---|---|---|
| GB 18580-2017 | Formaldehyde emission limits for wood-based panels, recommended for E1-grade desktop panel acceptance | |
| GB/T 1732-2020 | Impact resistance specification for painted metal frames, applicable to powder-coated steel components |
This product must meet the following technical requirements: 1. GB/T 3976-2014: Size and functional requirements for school desks and chairs, applicable for primary/secondary classroom use; 2. GB 18580-2017: Formaldehyde emission limits for wood-based panels, recommended for E1-grade desktop panel acceptance; 3. GB/T 1732-2020: Impact resistance specification for painted metal frames, applicable to powder-coated steel components; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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