| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall unit dimension (2 seats) | 1160 x 785 x 1030 mm | |
|---|---|---|
| Center distance per seat | 580 mm | |
| Seat height from floor | 475 mm | |
| Seat panel dimension | 450 x 405 x 15 mm | |
| Backrest panel dimension | 640 x 505 x 18 mm | |
| Folding writing tablet dimension | 300 x 286 x 18 mm | |
| Writing tablet height from floor | 750 mm | |
| Unit depth with tablet folded closed | 575 mm | |
| Minimum row installation pitch | 900 mm | |
| Floor mount foot plate dimension | 260 x 60 mm | |
| Footrest bar height from floor | 120 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
| Recommended static load per seat | 260 kg | |
|---|---|---|
| Writing tablet static load capacity | 22 kg | |
| Seating capacity per 2-seat unit | 2 adults | |
| Frame cyclic durability | 17000 cycles | |
| Net weight per seat | 18 kg | |
| Wood panel paint hardness | 1.82H | |
| Standard 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 |
Core acceptance fields · Panels / hardware / frame / upholstery
| Support frame | Cold-rolled steel square tube, 2.0mm wall thickness, electrostatic powder coating | |
|---|---|---|
| Connecting beam | 75x25x2.0mm cold-rolled steel, anti-rust phosphating pretreatment | |
| Seat panel | 15mm thick multilayer plywood with light beech wood veneer, clear lacquer finish | |
| Backrest | Tensioned polyester mesh stretched over steel inner frame, black edge trim | |
| Writing tablet | 18mm thick MDF core with light wood veneer, foldable steel hinge | |
| Armrests | 1.5mm thick welded steel tube, silver powder-coated finish, integrated top rail | |
| Mounting hardware | Stainless steel hex expansion anchors for concrete floor installation | |
| Return mechanism | Steel spring with damper for quiet tablet folding and return | |
| Footrest bar | 2.0mm thick ribbed steel plate, integrated with leg frame, anti-slip surface | |
| 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 |
Adjustment / rotation / tilt / mobility / storage features
| Modular ganged installation | Seats link on shared steel beams to form continuous fixed rows | |
|---|---|---|
| Foldable side writing tablet | Side-mounted tablet folds flush with armrest when not in use, 90-degree operating angle | |
| Floor-fixed stability | Base plates secure to finished floor with expansion anchors to prevent shifting | |
| Quiet return mechanism | Spring-damper hinge slows tablet return to eliminate impact noise in quiet spaces | |
| Integrated footrest | Front cross bar provides foot support for upright seated posture during long sessions | |
| Modular row extension | Units connect end-to-end to match room length for lecture hall layouts | |
| Mesh back ventilation | Tensioned open-weave mesh allows air circulation to reduce back heat during long use | |
| 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
| Carton dimension per 2-seat unit | 1220 x 650 x 220 mm | |
|---|---|---|
| Gross weight per 2-seat unit | 42 kg | |
| 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
| Corporate training rooms | Fixed row layout supports notetaking with integrated tablet for formal sessions | |
|---|---|---|
| University lecture halls | Modular ganged design fits stepped floor layouts for continuous audience seating | |
| Multi-function auditoriums | Quiet tablet return and durable frame suit frequent public events and conferences | |
| Government meeting rooms | Neutral light wood and silver finish fits formal administrative space aesthetics | |
| Conference training centers | High density row arrangement maximizes room capacity without sacrificing writing space | |
| Public examination halls | Fixed stable seating with individual writing surface supports formal testing conditions | |
| 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 13761:2002 | Furniture – Chairs for public areas, safety and strength requirements | |
|---|---|---|
| EN 1022:2018 | Furniture – Seating – Determination of stability | |
| EN 12520:2015 | Furniture – Strength, durability and safety – Requirements for domestic seating |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 | General purpose office chairs – Tests for strength, durability and stability |
|---|
Standards applicable to China-market projects
| GB/T 3324-2017 | General technical requirements for wooden furniture, applicable to wood seat and tablet components | |
|---|---|---|
| GB/T 3325-2017 | General technical requirements for metal furniture, applicable to steel frame structure | |
| GB 20286-2006 | Fire safety requirements for flame retardant furniture in public places | |
| GB/T 10357.3-2013 | Test method for strength and durability of chair and stool seating surfaces |
This product must meet the following technical requirements: 1. GB/T 3324-2017: General technical requirements for wooden furniture, applicable to wood seat and tablet components; 2. GB/T 3325-2017: General technical requirements for metal furniture, applicable to steel frame structure; 3. GB 20286-2006: Fire safety requirements for flame retardant furniture in public places; 4. GB/T 10357.3-2013: Test method for strength and durability of chair and stool seating surfaces; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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