| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall per-unit dimensions | 580 x 950 x 820 mm | |
|---|---|---|
| Seat height from floor | 460 mm | |
| Writing surface front edge height | 795 mm | |
| Seat panel dimensions | 456 x 450 x 6 mm | |
| Writing worktop thickness | 25 mm | |
| Front modesty panel thickness | 15 mm | |
| Steel support leg tube specification | 80 x 40 x 2.0 mm | |
| Floor mounting plate dimensions | 215 x 170 x 5 mm | |
| Backrest total height from seat | 400 mm | |
| Minimum required row spacing | 950 mm | |
| Integrated armrest height from seat | 180 mm | |
| Continuous worktop depth per seat | 350 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
| Per-seat net weight | 18 kg | |
|---|---|---|
| Seat panel static load capacity | 2000 N | |
| Writing surface vertical static load | 30 kg | |
| Recommended user weight capacity per seat | 150 kg | |
| Seat mechanism cycle durability | 100000 cycles | |
| Powder coat finish salt spray resistance | 72 h | |
| 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
| Seat and backrest shells | Molded PA+GF engineering plastic, ergonomic curved, matte blue finish | |
|---|---|---|
| Support frame and legs | Cold-rolled steel square tube, electrostatic powder-coated light beige finish | |
| Floor mounting foot plates | Hot-rolled stamped steel, 5mm thickness, powder-coated, three-hole expansion bolt mount | |
| Continuous writing worktop | High-pressure laminate (HPL) panel, PU edge binding, light neutral matte finish | |
| Front modesty panel | 15mm thick melamine-faced high-density fiberboard, light gray finish | |
| Integrated armrests | Steel support core with molded plastic top cap, fixed position aligned with worktop | |
| Underseat book rack | Cold-rolled steel wire mesh or stamped steel panel, powder-coated finish | |
| Fastener hardware | Zinc-plated steel expansion bolts and connecting screws, with plastic screw caps | |
| 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
| Permanent floor mounting | T-base legs secured with hidden expansion bolts, no movement after installation | |
|---|---|---|
| Fixed writing surface configuration | Continuous shared worktop runs full row length, no folding or rotating mechanism | |
| Fixed seat and backrest alignment | Seat and back fixed at optimal ergonomic angle, no recline or rotation | |
| Tiered row compatibility | Leg heights adjustable for stepped floor installation, maintains consistent writing height | |
| Integrated underseat storage | Open steel rack under each seat for storing bags, books and personal items | |
| Full-length modesty panel | Front panel blocks leg view between rows, provides structural rigidity for worktop | |
| Seamless row connection | Multiple units connect end-to-end to form custom length straight rows | |
| Fixed integrated armrests | Armrests positioned at writing height to support forearms during note-taking | |
| 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
| Number of packages per 4-seat unit | 4 cartons | |
|---|---|---|
| Packed carton dimensions per full set | 2400 x 650 x 450 mm | |
| Gross weight per 4-seat unit | 85 kg | |
| Packaged volume per 4-seat unit | 0.702 CBM | |
| On-site assembly time per 4-seat row | 120 minutes | |
| 20ft GP container loading capacity | 72 seats | |
| 40ft HQ container loading capacity | 180 seats | |
| Reference Package Count | 1 set / 2 cartons | |
| Reference Assembly Time | 40 minutes per set | |
| Reference Carton Dimensions | 850× 420× 720 mm |
Recommended spaces / users / usage modes
| University tiered lecture halls | Fixed row design supports stepped floor installation, provides unobstructed sightlines for large classes | |
|---|---|---|
| Corporate training rooms | Durable fixed configuration withstands high daily occupancy, integrates work surface for materials | |
| Multimedia classroom facilities | Stable writing surface supports laptops and note-taking for technology-enhanced learning | |
| Public institution conference auditoriums | Uniform fixed seating creates organized layout for seminars, exams and public events | |
| Vocational school training centers | Wear-resistant plastic and steel construction withstands heavy use in educational environments | |
| Exam halls and testing centers | Fixed individual work positions prevent movement and maintain seating separation | |
| 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 | Furniture for educational institutions: functional dimensions for chairs and tables | |
|---|---|---|
| EN 1729-2:2012 | Safety and strength requirements for educational seating and work surfaces | |
| EN 13722:2004 | Furniture: strength and durability test methods for non-domestic seating |
Standards applicable to China-market projects
| GB/T 3324-2017 | General technical requirements for wooden furniture, applicable to laminate worktop and panel components | |
|---|---|---|
| GB/T 24821-2009 | Furniture for educational institutions: general technical requirements for classroom desks and chairs | |
| GB 18580-2017 | Formaldehyde emission limits for wood-based panel products used in furniture | |
| GB/T 10357.3-2013 | Mechanical test methods for furniture: strength and durability of seating |
This product must meet the following technical requirements: 1. GB/T 3324-2017: General technical requirements for wooden furniture, applicable to laminate worktop and panel components; 2. GB/T 24821-2009: Furniture for educational institutions: general technical requirements for classroom desks and chairs; 3. GB 18580-2017: Formaldehyde emission limits for wood-based panel products used in furniture; 4. GB/T 10357.3-2013: Mechanical test methods for furniture: strength and durability of seating; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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