| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 620 x 610 x 865 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
| Product net weight | 8 kg | |
|---|---|---|
| Maximum static user load | 120 kg | |
| Underseat basket load capacity | 5 kg | |
| Recommended continuous seating duration | 4 hours | |
| Frame static load rating | 180 kg | |
| Caster rolling durability | 20000 cycles | |
| 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 upholstery | 280g/m² breathable black polyester fabric | |
|---|---|---|
| Seat core | 40mm thick high-density polyurethane foam | |
| Backrest panel | 5mm thick injection-molded black polypropylene | |
| Frame structure | 1.5mm thick powder-coated matte black steel tube | |
| Writing tablet | 12mm thick matte black ABS composite panel | |
| Armrest pads | Injection-molded black polypropylene, fixed position | |
| Underseat basket | 4mm diameter black epoxy-coated steel wire mesh | |
| Caster wheels | Hard-wearing black nylon, dual-wheel non-braking design | |
| 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 mechanism | Single-action gravity lock fold, folds to 150mm flat thickness | |
|---|---|---|
| Writing tablet operation | Left-side 90-degree flip-up tablet, rotates flush to back when stored | |
| Mobility function | 360-degree swivel casters on all four legs, no brake mechanism | |
| Underseat storage | Open wire mesh basket fixed between front and rear legs | |
| Stacking capability | Nested stacking up to 10 units high when folded | |
| Armrest design | Fixed curved armrests aligned with seat edge, no height adjustment | |
| Backrest ergonomics | Contoured lumbar curve with slight backward tilt | |
| 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 | Suits daily employee training, workshops, and onboarding sessions | |
|---|---|---|
| Conference and seminar spaces | Ideal for multi-attendee meetings, lectures, and breakout sessions | |
| Educational institutions | Appropriate for college classrooms, continuing education, and exam venues | |
| Temporary event spaces | Used for trade shows, recruitment fairs, and pop-up events | |
| Co-working flexible spaces | Supports hot-desking and collaborative small-group work | |
| Community and public facilities | Suitable for library meeting rooms, community centers, and public halls | |
| 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 recommendation | EN 1335:2018 | |
|---|---|---|
| Foldable furniture structural recommendation | EN 1729:2015 |
US and Canada office-furniture standards
| General office chair recommendation | ANSI/BIFMA X2017 |
|---|
Standards applicable to China-market projects
| Office chair mechanical safety recommendation | GB/T 3326 | |
|---|---|---|
| Upholstered furniture durability recommendation | GB/T 26706 |
This product must meet the following technical requirements: 1. Office chair mechanical safety recommendation: GB/T 3326; 2. Upholstered furniture durability recommendation: GB/T 26706; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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