| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| overall dimensions | 540 x 580 x 840 mm | |
|---|---|---|
| seat height | 460 mm | |
| seat width | 500 mm | |
| seat depth | 440 mm | |
| cushion thickness | 40 mm | |
| backrest height | 410 mm | |
| backrest width | 520 mm | |
| back lumbar opening width | 260 mm | |
| sled frame front width | 470 mm | |
| floor to bottom of seat rail | 420 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
| chair weight | 5.5 kg | |
|---|---|---|
| maximum user weight | 110 kg | |
| stacking capacity | 10 chairs | |
| seat foam density | 30 kg/m³ | |
| fabric abrasion resistance | 50000 double rubs | |
| frame static load test | 150000 cycles | |
| chair net weight | 5.5 kg | |
| maximum static user weight | 110 kg | |
| vertical stacking capacity | 10 chairs | |
| frame fatigue cycle rating | 150000 cycles |
Core acceptance fields · Panels / hardware / frame / upholstery
| backrest shell | Matte off-white polypropylene, one-piece injection molded with central lumbar cutout | |
|---|---|---|
| seat shell | Matte off-white polypropylene, contoured injection molded shell supporting upholstered pad | |
| seat cushion | Light gray woven fabric over polyurethane foam, bonded to plastic seat shell | |
| frame | Chrome-plated tubular steel sled base, continuous wire form with rectangular cross runners | |
| frame mounting brackets | Injection-molded plastic brackets connecting seat shell to steel frame | |
| floor contact glides | Integrated plastic glide pads at base of sled runners | |
| back lumbar support pad | Integrated horizontal polypropylene support panel inside back cutout | |
| seat cushion foam | High-resilience polyurethane foam, cut to contoured shape and bonded to the seat shell substrate | |
| seat cushion upholstery | Light gray woven polyester fabric, stitched along perimeter and bonded to foam core | |
| sled base frame | Chrome-plated low-carbon tubular steel, continuous bent wire form with rectangular front and rear cross runners | |
| shell-to-frame mounting brackets | Black injection-molded glass-filled polypropylene brackets, mechanically fastened between seat shell and steel frame | |
| back lumbar support panel | Integral matte polypropylene horizontal panel, molded as part of the backrest opening structure |
Adjustment / rotation / tilt / mobility / storage features
| stacking | Chairs nest vertically when lifted from front, with sled legs fitting over rear frame of lower chair | |
|---|---|---|
| fixed seat height | Seat surface remains at constant 460 mm height with no gas lift or adjustment mechanism | |
| lumbar support | Contoured horizontal plastic panel set within backrest opening provides lower back support | |
| armless design | No armrests, allowing unobstructed access and closer positioning to tables | |
| non-marring floor protection | Plastic glide pads on sled runners reduce scratching on hard flooring | |
| lightweight maneuverability | Low overall weight allows single-hand carrying for room reconfiguration | |
| ventilated back | Central rectangular opening in backrest improves air circulation during extended sitting | |
| vertical stacking | Chairs nest vertically when lifted at the front, with sled legs fitting over the rear frame of the lower chair to form a stable stack | |
| integrated lumbar support | A contoured horizontal polypropylene panel set within the backrest opening provides lower back support at the 220 mm wide lumbar zone | |
| armless side access | No armrests are included, allowing unobstructed side entry and closer positioning to table edges | |
| lightweight manual maneuverability | Low overall 5.5 kg weight allows single-hand carrying for room reconfiguration and storage | |
| ventilated back design | A central 260 x 180 mm rectangular opening in the backrest improves air circulation across the user’s lower back during extended sitting |
Verified carton / gross weight / assembly / loading data
| units per carton | 4 chairs | |
|---|---|---|
| carton dimensions | 880 x 600 x 920 mm | |
| gross weight per carton | 26 kg | |
| carton volume | 0.486 CBM | |
| assembly time per chair | 5 minutes | |
| 20 ft container loading | 320 chairs | |
| 20 ft GP 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 |
Recommended spaces / users / usage modes
| conference rooms | Suited for boardrooms and meeting rooms with fixed or variable seating layouts | |
|---|---|---|
| training spaces | Suitable for training centers and seminar rooms requiring frequent reconfiguration | |
| visitor waiting areas | Appropriate for office reception and visitor zones with short-to-medium duration seating | |
| cafeteria and break areas | Usable in staff dining areas with hard flooring and regular cleaning needs | |
| open-plan workstations | Can serve as guest chairs beside individual desks in open office environments | |
| training and seminar spaces | Appropriate for training centers and multi-purpose seminar rooms requiring frequent layout reconfiguration | |
| office visitor waiting areas | Suited for reception lobbies and visitor waiting zones with short-to-medium duration seating use | |
| staff cafeteria and break areas | Usable in staff dining and break areas with hard flooring and regular wet cleaning routines |
EU Market Access Requirements* EN Standards
| BS EN 16139 | 2013 Furniture - Strength, durability and stability of non-domestic seating - Requirements for chairs and stools for non-domestic use | |
|---|---|---|
| BS EN 1021-2 | 2014 Furniture - Assessment of the ignitability of upholstered furniture - Part 2: Match flame equivalent source |
US and Canada office-furniture standards
| North America procurement and testing reference | ANSI/BIFMA X5.1 General-Purpose Office Chairs |
|---|
Standards applicable to China-market projects
This product must meet the following technical requirements: 1. Technical standards and test reports must be supplied during tender or purchase confirmation; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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