| 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
| Per-seat static load capacity | 150 kg | |
|---|---|---|
| Seat flip cycle durability | 50000 cycles | |
| Module net weight | 45 kg | |
| Powder coating abrasion resistance | 2000 cycles | |
| Seat return mechanism noise level | 40 dB | |
| Warranty period | 5 years | |
| Fire performance of laminated panels | B1 grade | |
| 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 |
Core acceptance fields · Panels / hardware / frame / upholstery
| Support frame and beams | 2.0mm cold-drawn steel, electrostatic matte powder coat | |
|---|---|---|
| Writing desk panel | 25mm high-density MDF core, fireproof laminate top, PU edge banding | |
| Seat and back panels | 15mm multi-layer plywood, double-sided fireproof laminate, PP edge trim | |
| Seat return mechanism covers | PP engineering plastic, matte black finish | |
| Under-seat book net | 4mm cold-drawn steel wire, welded construction, black powder coat | |
| Floor mounting fasteners | Stainless steel M8 internal hex expansion bolts with rubber plugs | |
| End modesty panels | 25mm laminated MDF, curved edge profile, matching desk finish | |
| Seat divider partitions | 15mm laminated plywood, black edge trim | |
| 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
| Folding seat operation | Spring-loaded automatic return, folds flush against modesty panel when unoccupied | |
|---|---|---|
| Floor mounting design | Permanent fixed installation via base flange expansion bolts | |
| Cable management | Integrated under-desk wire retention loops for power/data cabling | |
| Seat storage feature | Open steel wire net under each seat for book and personal item storage | |
| Tiered sightline design | Each successive row elevated for unobstructed views over front row occupants | |
| Seat damping feature | Plastic pivot bushings eliminate metal-on-metal noise during seat return | |
| Modular configuration | Segments connect in linear runs to match hall width and row length | |
| Customization option | Pre-drilled cutouts available for integrated power and data sockets | |
| 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
| Higher education lecture halls | Permanent tiered seating with sightline optimization for large class instruction | |
|---|---|---|
| Multi-function school report halls | Durable fixed seating for assemblies, guest lectures and campus events | |
| Corporate training auditoriums | Folding seats clear aisle space between sessions for flexible event use | |
| Government and institutional meeting rooms | Fixed heavy-duty seating for formal public hearings and committee sessions | |
| Stepped multimedia classrooms | Integrated cable management supports AV and device power for technology-enabled teaching | |
| Continuing education training centers | Low-maintenance surfaces withstand frequent daily use by rotating student groups | |
| 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, safety and strength requirements for seating and desks | |
|---|---|---|
| EN 13722:2004 | Test methods for strength and durability of fixed public seating | |
| EN 13501-1:2018 | Fire classification of construction products, applicable to panel surface materials |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | Office chairs standard, reference for static seat load and durability testing | |
|---|---|---|
| ANSI/BIFMA X5.5-2021 | Desk products standard, reference for desk surface load and edge strength |
Standards applicable to China-market projects
| GB/T 3324-2017 | General technical requirements for wooden furniture, applicable to all laminated wood panels | |
|---|---|---|
| GB/T 3325-2017 | General technical requirements for metal furniture, applicable to steel frame and hardware | |
| GB 20286-2006 | Fire performance requirements for flame-retardant furniture in public assembly venues | |
| GB/T 10357.3-2013 | Mechanical test methods for seating strength and durability, applicable to seat frames |
This product must meet the following technical requirements: 1. GB/T 3324-2017: General technical requirements for wooden furniture, applicable to all laminated wood panels; 2. GB/T 3325-2017: General technical requirements for metal furniture, applicable to steel frame and hardware; 3. GB 20286-2006: Fire performance requirements for flame-retardant furniture in public assembly venues; 4. GB/T 10357.3-2013: Mechanical test methods for seating strength and durability, applicable to seat frames; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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