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|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall desk dimensions | 700 x 500 x 780 mm | |
|---|---|---|
| Desk work surface thickness | 25 mm | |
| Overall chair dimensions | 410 x 410 x 780 mm | |
| Chair seat height | 460 mm | |
| Chair seat panel size | 400 x 410 mm | |
| Chair backrest height above seat | 175 mm | |
| Under-desk drawer internal dimensions | 520 x 330 x 150 mm | |
| Steel frame tube wall thickness | 1.5 mm | |
| Under-desk knee clearance height | 630 mm | |
| Anti-slip foot cap base size | 30 x 50 mm | |
| Seat surface slope angle | 2° | |
| 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
| Total set net weight reference | 18 kg | |
|---|---|---|
| Maximum recommended static user load | 150 kg | |
| Desk top distributed static load capacity | 80 kg | |
| Powder coating abrasion resistance cycles | 1000 | |
| Welded frame static load cyclic test count | 10000 | |
| Recommended user age group | 18 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 work surface panel | 25mm E1 grade multi-layer plywood with beech melamine laminate, PP injection-molded rounded edges | |
|---|---|---|
| Seat and backrest panels | 18mm E1 grade multi-layer plywood with beech melamine laminate, polished rounded edges | |
| Structural frame | Q235 cold-rolled steel tube with white electrostatic powder coating, pre-treated via pickling and phosphating | |
| Under-desk stationery drawer | 1.0mm thick cold-rolled stamped steel with matching white powder coating, integrated stop lip | |
| Frame connection stretchers | 20x40mm rectangular steel tube welded to leg assemblies, ground smooth welds | |
| Floor contact foot caps | Black PP molded anti-slip caps, press-fit to leg ends to protect flooring | |
| Seat panel fasteners | Stainless steel countersunk screws recessed into seat surface to prevent snagging | |
| Frame surface treatment | High-temperature baked powder coating resistant to rust, chipping and common classroom cleaning chemicals | |
| 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
| Fixed-height work surface | Welded steel leg assembly maintains 780mm desk height without adjustment, designed for dedicated classroom use | |
|---|---|---|
| Integrated front stationery drawer | Open-top shallow drawer slides under desk front edge for pens, notebooks and small supplies, no locking mechanism | |
| Cantilever-style curved frame chair | Continuous bent steel tube frame supports fixed seat and backrest, no recline or height adjustment for consistent classroom use | |
| Perimeter frame stretchers | Horizontal steel cross-braces connect all legs on desk and chair to prevent wobble, double as footrest for seated users | |
| Anti-slip floor protection | Molded PP foot caps on all leg ends reduce sliding on hard floors, prevent scratching and dampen movement noise | |
| Stack-compatible geometry | Desk and chair frames are shaped to nest closely together for compact storage when not in use, reducing storage footprint by 40% | |
| Rounded safety edge design | All desk, chair and frame edges are rounded or capped to eliminate sharp points, meeting student furniture safety requirements | |
| Chair backrest tilt angle | 12° | |
| 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 installation | Fixed-height design suitable for permanent rowed seating in secondary school general classrooms, supports long daily use | |
|---|---|---|
| Training center and tutoring room use | Durable steel-wood construction withstands frequent daily use in after-school training and adult education spaces | |
| Home study space for students | Compact footprint fits small bedroom study nooks, provides dedicated writing surface for homework and remote learning | |
| Examination hall seating | Fixed non-adjustable structure reduces distraction during testing, consistent sizing across all seats for standardized exam setups | |
| Library individual study carrel use | Stackable design allows flexible rearrangement of individual study seats in library reading areas | |
| Temporary training venue setup | Lightweight KD design allows quick assembly and disassembly for short-term training events and pop-up education spaces | |
| 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 standard for safety and strength of educational furniture | |
|---|---|---|
| EN 1729-2:2012 | Applicable European standard for functional dimensions of school furniture |
Standards applicable to China-market projects
| GB/T 3976-2014 | Applicable standard for functional sizes and technical requirements of school desks and chairs | |
|---|---|---|
| GB 18580-2017 | Applicable standard for formaldehyde emission limits on wood-based panel components | |
| GB/T 3324-2017 | Applicable general technical standard for wood furniture durability and safety | |
| GB/T 17657-2013 | Applicable test standard for physical and chemical properties of wood-based panels |
This product must meet the following technical requirements: 1. GB/T 3976-2014: Applicable standard for functional sizes and technical requirements of school desks and chairs; 2. GB 18580-2017: Applicable standard for formaldehyde emission limits on wood-based panel components; 3. GB/T 3324-2017: Applicable general technical standard for wood furniture durability and safety; 4. GB/T 17657-2013: Applicable test standard for physical and chemical properties of wood-based panels; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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