| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 625 x 610 x 880 mm | |
|---|---|---|
| Seat width | 450 mm | |
| Seat depth | 450 mm | |
| Seat height from floor | 460 mm | |
| Backrest width | 450 mm | |
| Backrest height | 430 mm | |
| Writing tablet dimensions | 250 x 175 mm | |
| Armrest height above seat | 225 mm | |
| Base footprint | 610 x 520 mm | |
| Folded storage depth per chair | 300 mm | |
| Total height with tablet folded down | 680 mm | |
| Caster diameter | 50 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
| Net weight per chair | 8 kg | |
|---|---|---|
| Recommended static user weight capacity | 150 kg | |
| Writing tablet static load capacity | 20 kg | |
| Recommended number of users | 1 person | |
| Frame static load rating | 260 kg | |
| Tablet surface load distribution | Evenly distributed across 250x175mm area | |
| Caster rolling durability | 40000 cycles | |
| Warranty period for frame and components | 3 years | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% | |
| Back Foam Density Reference | 38 kg/m³ |
Core acceptance fields · Panels / hardware / frame / upholstery
| Frame construction | 2.0mm thick powder-coated light gray steel tube | |
|---|---|---|
| Backrest material | Breathable dark nylon mesh with central vertical support | |
| Seat cushion fill | 50mm thick high-density molded foam, 70 kg/m³ density | |
| Seat upholstery | Abrasion-resistant dark polyester fabric, 30000 double rub rating | |
| Writing tablet | Rigid black ABS polymer surface with steel support bracket | |
| Armrests | Curved fixed PP polymer caps matching light gray frame finish | |
| Casters | Black nylon dual-wheel swivel casters, non-marking | |
| Seat base panel | 12mm thick plywood under foam cushion with PP bottom shell | |
| Seam stitch pitch | 8 stitches per 30mm | |
| Frame finish | Scratch-resistant light gray electrostatic powder coating | |
| Seat Internal Support Board Thickness | 14 mm bent plywood or equivalent support board | |
| Backrest Internal Frame Thickness | 14 mm bent plywood/composite reinforced frame |
Adjustment / rotation / tilt / mobility / storage features
| Fold mechanism | Frame folds flat to enable compact nested stacking storage | |
|---|---|---|
| Writing tablet position | Fixed flip-up left armrest mount, 180° stowable when not in use | |
| Mobility function | Four dual-wheel casters allow easy repositioning between training sessions | |
| Backrest function | Fixed upright position for focused training and meeting use | |
| Seat function | Fixed padded position, no swivel or height adjustment hardware | |
| Armrest function | Fixed curved armrests provide upper body support during long sessions | |
| Nesting capability | Chairs nest together to reduce storage footprint by 70% when folded | |
| Caster function | 360° swivel casters roll smoothly on carpet and hard flooring | |
| 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
| Corporate training rooms | Provides flexible, mobile seating with note-taking surface for employee development sessions | |
|---|---|---|
| Conference meeting spaces | Easily reconfigured for temporary meeting setups with quick nesting storage between events | |
| Higher education classrooms | Durable, mobile seating ideal for university lectures and seminar group work | |
| Event and exhibition venues | Lightweight, stackable design supports fast setup and teardown for temporary events | |
| Co-working flexible spaces | On-demand seating that can be stored away when open floor space is required | |
| Examination rooms | Stable fixed-position seating with writing surface suitable for formal testing environments | |
| 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
| Office chair safety standard | EN 1335:2018 | |
|---|---|---|
| Seating stability standard | EN 1022:2019 |
US and Canada office-furniture standards
| Office chair durability standard | ANSI/BIFMA X2017 | |
|---|---|---|
| Caster durability standard | ANSI/BIFMA X2017Clause 17 |
Standards applicable to China-market projects
| Stability test standard | GB/T 10357.2 | |
|---|---|---|
| Strength/durability standard | GB/T 10357.3 | |
| Upholstery fabric standard | GB/T 21655.1 |
This product must meet the following technical requirements: 1. Stability test standard: GB/T 10357.2; 2. Strength/durability standard: GB/T 10357.3; 3. Upholstery fabric standard: GB/T 21655.1; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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