| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall desk dimensions | 650 x 450 x 760 mm | |
|---|---|---|
| Desk top panel thickness | 25 mm | |
| Under-desk knee clearance height | 600 mm | |
| Under-desk storage compartment dimensions | 550 x 385 x 170 mm | |
| Overall chair dimensions | 440 x 400 x 780 mm | |
| Chair seat width | 440 mm | |
| Chair seat depth | 400 mm | |
| Chair seat height from floor | 460 mm | |
| Chair backrest dimensions | 390 x 360 mm | |
| Steel frame tube section | 30 x 60 mm | |
| Steel frame wall thickness | 1.4 mm | |
| Anti-slip foot pad thickness | 8 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
| Set net weight | 22 kg | |
|---|---|---|
| Desk top static load capacity | 200 kg | |
| Recommended user age range | 18 years | |
| Powder coating corrosion resistance | 48 hours | |
| Surface abrasion resistance | 2000 cycles | |
| Structural warranty period | 5 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 | |
| Five-star Base Static Load Reference | Acceptance target ≥120 kg; chair reference load 150 kg |
Core acceptance fields · Panels / hardware / frame / upholstery
| Desk top panel | 25mm E1-grade melamine laminate with rounded PP edge | |
|---|---|---|
| Desk and chair frame | 1.4mm thick cold-rolled oval steel tube | |
| Under-desk storage drawer | 0.8mm thick cold-rolled steel sheet | |
| Chair seat panel | 18mm thick blue laminate panel | |
| Chair backrest panel | 18mm thick laminate with blue edge trim | |
| Foot caps and wear pads | 8mm thick injection-molded black PP | |
| Frame cross bracing | 1.2mm thick round steel tube | |
| Frame finish | Epoxy polyester electrostatic powder coating | |
| 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
| Seating configuration | Single fixed seat for one student per set | |
|---|---|---|
| Under-desk storage | Fixed open book compartment plus side steel drawer | |
| Frame stability | Four-point welded cross-braced desk frame | |
| Chair structure | Cantilever curved steel frame without moving parts | |
| Edge protection | Rounded impact-resistant PP edging on all top corners | |
| Floor protection | Fitted PP anti-slip caps on all leg ends | |
| Height configuration | Fixed non-adjustable desk and chair height | |
| Fastening design | Rivet-secured seat and back panels | |
| 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
| Primary/secondary school classrooms | Fixed-height configuration suitable for permanent standardized classroom layouts | |
|---|---|---|
| Exam halls and test centers | Durable low-maintenance construction withstands frequent daily public use | |
| Tutoring and training centers | Compact single-seat design maximizes room capacity for small group instruction | |
| Temporary study spaces | Stackable? No, easy to reposition for flexible room arrangement | |
| School library study areas | Integrated storage keeps personal study materials organized during use | |
| Dormitory study zones | Compact footprint fits limited space for individual student study | |
| 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 | Applies to functional and safety requirements for educational seating and tables | |
|---|---|---|
| EN 12727:2000 | Applies to strength and durability testing for educational furniture |
Standards applicable to China-market projects
| GB/T 3976-2014 | Applies to functional size and safety requirements for school student desks and chairs | |
|---|---|---|
| GB 18580-2017 | Applies to formaldehyde emission limits for wood-based panel components | |
| GB/T 3324-2017 | Applies to general technical requirements for metal wood furniture durability |
This product must meet the following technical requirements: 1. GB/T 3976-2014: Applies to functional size and safety requirements for school student desks and chairs; 2. GB 18580-2017: Applies to formaldehyde emission limits for wood-based panel components; 3. GB/T 3324-2017: Applies to general technical requirements for metal wood furniture durability; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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