| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 840 x 840 x 970 mm | |
|---|---|---|
| Seat height from floor | 480 mm | |
| Seat width | 520 mm | |
| Seat depth | 520 mm | |
| Backrest height from seat | 610 mm | |
| Seat cushion thickness | 100 mm | |
| Integrated armrest height from seat | 210 mm | |
| Leveler foot height | 10 mm | |
| Armrest width | 100 mm | |
| Backrest width at shoulder level | 580 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 weight capacity | 136 kg | |
|---|---|---|
| Net product weight | 20 kg | |
| Seat foam density | 40 kg/m³ | |
| Foam rebound rate | 45% | |
| Back foam density | 35 kg/m³ | |
| Frame static load rating | 180 kg | |
| Seam tensile strength | 120 N | |
| Base static load rating | 200 kg | |
| Warranty period | 3 years | |
| Seat Foam Density / Rebound Reference | 45 kg/m³ / 65% |
Core acceptance fields · Panels / hardware / frame / upholstery
| Outer upholstery | 1.0 mm thick faux leather (PU leather) with matte cream finish | |
|---|---|---|
| Seat padding core | High-resilience polyurethane foam block wrapped in polyester batting | |
| Backrest padding | Contoured polyurethane foam with molded lumbar indentation | |
| Internal support frame | 1.5 mm thick welded steel tube frame for seat and back structure | |
| Swivel base structure | Matte black powder-coated 2.0 mm thick steel 4-prong spider frame | |
| Leveling glides | Chrome-plated steel adjustable feet with non-marking rubber contact pads | |
| Swivel mechanism | Steel ball-bearing 360° rotation hub between base and seat frame | |
| Upholstery stitching | Matching cream polyester thread with 8 mm seam pitch | |
| Armrest structure | Integrated padded arm panel connected to seat and back frame | |
| 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
| Rotation function | 360° smooth swivel rotation via central ball-bearing hub | |
|---|---|---|
| Leveling adjustment | Individual adjustable chrome glides on each base leg to compensate for uneven floors | |
| Seating posture support | 12° fixed relaxed back angle for casual lounge seating | |
| Arm support design | Curved wrap-around integrated arms provide elbow and forearm support at seated height | |
| Floor protection | Non-marking rubber pads on glide feet prevent scratching hard flooring surfaces | |
| Upholstery maintenance | Faux leather surface supports spot cleaning with mild detergent and damp cloth | |
| Stability design | Wide 4-prong base footprint prevents tipping during swivel or seated movement | |
| Assembly requirement | Minimal attachment of base to seat shell with included hardware | |
| Adjustment features | No height adjustment, casters, or recline locking mechanisms included | |
| 4-prong swivel base diameter | 700 mm | |
| Recline Angle / Lock Reference | 125° with 3suggested lock positions | |
| Tilt Tension User-weight Range | Reference adjustment coverage 120 kg |
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
| Office reception lounge | Use in waiting areas and visitor seating zones for modern corporate environments | |
|---|---|---|
| Residential living room | Place as accent seating in living rooms or reading nooks for casual relaxation | |
| Hotel lobby seating | Deploy in hotel lobbies, club lounges and guest waiting areas for high-traffic use | |
| Executive breakout space | Install in office breakout zones and informal meeting areas for relaxed seating | |
| Apartment open-plan area | Use as standalone accent chair in studio or open-plan residential spaces | |
| Quiet room seating | Place in office quiet rooms and meditation spaces for relaxed individual seating | |
| 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 1022:2018 | Furniture seating stability test standard, applicable for static and swivel stability verification | |
|---|---|---|
| EN 1335-2:2009 | Office furniture seating safety requirements, applicable for contract lounge seating structural strength reference |
US and Canada office-furniture standards
| ANSI/BIFMA X5.4-2020 | Lounge seating standard, applicable for static load, durability and stability acceptance |
|---|
Standards applicable to China-market projects
| GB/T 3324-2017 | General technical requirements for wooden and upholstered furniture, applicable for structural safety and finish quality | |
|---|---|---|
| GB/T 16799-2008 | Standard for polyurethane synthetic leather used in furniture upholstery, applicable for faux leather material quality | |
| GB 28007-2011 | Safety standard for upholstered furniture, applicable for structural stability and harmful substance limits |
This product must meet the following technical requirements: 1. GB/T 3324-2017: General technical requirements for wooden and upholstered furniture, applicable for structural safety and finish quality; 2. GB/T 16799-2008: Standard for polyurethane synthetic leather used in furniture upholstery, applicable for faux leather material quality; 3. GB 28007-2011: Safety standard for upholstered furniture, applicable for structural stability and harmful substance limits; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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