| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| overall dimensions | 520 x 560 x 830 mm | |
|---|---|---|
| seat width | 470 mm | |
| seat depth | 430 mm | |
| seat height | 450 mm | |
| backrest width | 460 mm | |
| backrest height | 390 mm | |
| sled base front width | 490 mm | |
| floor to bottom of seat rail clearance | 410 mm | |
| stacking height per additional chair | 120 mm | |
| sled base rear width | 460 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
| unit net weight | 4.8 kg | |
|---|---|---|
| static seat load rating | 110 kg | |
| stacking quantity per stack | 8 chairs | |
| seat impact resistance cycles | 50000 cycles | |
| backrest fatigue cycles | 30000 cycles | |
| sled base static load rating | 150 kg | |
| 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 shell | One-piece injection-molded polypropylene, smooth matte black finish | |
|---|---|---|
| backrest shell | Integral injection-molded polypropylene with horizontal slotted ventilation openings | |
| sled base frame | Chrome-plated carbon steel tubular frame, continuous U-shaped leg design | |
| base tube profile | Round steel tubing, 25 mm outer diameter | |
| seat-to-frame connection | Plastic bracket mounts integrated into seat shell, secured to steel frame | |
| floor glides | Integrated plastic end caps on sled tube ends | |
| backrest support brackets | Reinforced polypropylene brackets molded onto backrest underside, attached to seat shell rear edge | |
| ventilation slot edges | Deburred injection-molded polypropylene edges, uniform 15 mm slot width | |
| 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
| stacking function | Nests vertically by aligning sled legs and shell contours; supports up to 8 chairs per stack for storage | |
|---|---|---|
| passive back ventilation | Horizontal slotted openings across backrest allow air circulation for extended sitting | |
| fixed posture support | Non-adjustable seat and back with 10-degree backrest recline for static meeting use | |
| floor-friendly movement | Smooth sled base slides across hard and carpeted floors without lifting | |
| under-desk compatibility | Sled base fits under standard 760 mm desk tops with minimum 410 mm apron clearance | |
| lightweight portability | Single-person carry enabled by 4.8 kg unit weight and open sled frame gripping points | |
| backrest tilt angle | 10 degrees | |
| vertical stacking function | Nests vertically by aligning sled legs with shell contours and inserting upper chair seat into lower chair back frame; supports 8 chairs per stack for compact storage | |
| floor-friendly gliding | Smooth plastic end caps on sled base enable sliding across hard floors and low-pile carpets without lifting | |
| stack nesting alignment | Molded seat underside recesses align with backrest top edge of lower chair to prevent lateral shifting in stacks | |
| Recline Angle / Lock Reference | 125° with 3 suggested lock positions | |
| Tilt Tension User-weight Range | Reference adjustment coverage 120 kg |
Verified carton / gross weight / assembly / loading data
| packaging configuration | 4 chairs per carton, nested and protected with PE foam and corner pads | |
|---|---|---|
| master carton dimensions | 580 x 600 x 920 mm | |
| gross weight per carton | 21 kg | |
| carton volume (CBM) | 0.32 CBM | |
| 20 ft container loading quantity | 320 chairs | |
| 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 |
Recommended spaces / users / usage modes
| corporate conference rooms | Suitable for boardrooms and meeting spaces where stackable, space-efficient guest seating is required | |
|---|---|---|
| training and education facilities | Appropriate for classrooms and training centers needing lightweight, durable and easy-to-store seating | |
| office visitor and reception areas | Ideal for lobby and waiting zone seating with low maintenance requirements | |
| cafeteria and break areas | Suitable for casual dining zones requiring stackable seating for floor cleaning routines | |
| event and function spaces | Useful for temporary event setups due to stackability and single-person portability | |
| co-working shared spaces | Suitable for flexible work zones and bookable meeting rooms where seating count needs to be adjusted quickly | |
| 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 16139:2013 Furniture - Chairs - Strength, durability and stability - Requirements for non-domestic chairs | Recommended for verifying commercial-grade structural performance of conference chairs | |
|---|---|---|
| EN 12520:2015 Furniture - Seating - Test methods for the determination of stability, strength and durability of domestic and non-domestic seating | Applicable standards and test results require confirmation |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1-2017 General-Purpose Office Chairs | Applicable standards and test results require confirmation |
|---|
Standards applicable to China-market projects
| GB/T 3326-2016 Furniture - Chairs and stools - Determination of strength and durability | Applicable for seat, back and base structural performance verification during incoming inspection | |
|---|---|---|
| GB/T 3327-1997 Furniture - Classification of chairs and stools | Applicable for product category verification and specification labeling |
This product must meet the following technical requirements: 1. GB/T 3326-2016 Furniture - Chairs and stools - Determination of strength and durability: Applicable for seat, back and base structural performance verification during incoming inspection; 2. GB/T 3327-1997 Furniture - Classification of chairs and stools: Applicable for product category verification and specification labeling; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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