Mid-Back Black Upholstered Executive Swivel Chair with Polished Aluminum Base (model OFC-MB-PA-01) is listed under Executive Boss Chair. Dimensions: 620 × 620 × 1010 mm. Materials: Black smooth upholstery over 90 mm polyurethane foam, with stitched front and side borders. Load capacity: 160 kg. Product Features: Black,upholstery,mid-back,structure,padded,seat,fixed,armrests,polished,metal,five-star,base,swivel,caster. This page consolidates 6 groups of specifications and GB / EN / ANSI/BIFMA standard references, with metric and imperial units. 1 supplier(s) are listed and you can request a quote online.
| Brand | JIULONGYOUSHENG | Model | OFC-MB-PA-01 |
| Overall dimensions (W × D × H) | 620 × 620 × 1010 mm | Finished Seat Cushion Thickness | 90 mm |
| Backrest Padding Thickness | 70 mm | Lumbar Support Zone Height | 240 mm |
| Clear Width Between Armrests | 540 mm | Chair net weight | 18 kg |
| Recommended user weight capacity | 160 kg | Seat foam density | 45 kg/m3 |
| Back foam density | 35 kg/m3 | Foam rebound performance | 40% |
| Upholstery abrasion resistance | 50,000 Martindale cycles | Seat static-load acceptance target | 160 kg |
| Caster rolling durability | 100,000 cycles | Tilt mechanism cycle life | 300,000 cycles |
| Warranty period | 5 years | Seat upholstery | Black smooth upholstery over 90 mm polyurethane foam, with stitched front and side borders |
| Backrest upholstery | Black upholstered panel over a padded internal board, with a squared top and stitched perimeter | Internal seat board | 15 mm molded plywood or composite seat carrier attached to the steel mechanism |
| Internal back frame | 12 mm shaped plywood or engineered board with edge reinforcement | Seat foam | 90 mm polyurethane foam at 45 kg/m3 density and 40% rebound target |
| Back foam | 50 mm polyurethane padding at 35 kg/m3 density | Armrest pads | Black padded pads bonded to curved polished metal arm supports |
| Arm supports | Polished aluminum or chrome-plated steel loop supports fixed between seat and back | Gas lift | 50 mm diameter class-4 steel gas lift with chrome outer tube |
| Tilt mechanism | Black powder-coated steel multi-position tilt plate with side control levers | Five-star base | Polished aluminum five-star base with 700 mm footprint and five twin-wheel casters |
| Casters | Black nylon twin-wheel casters with 60 mm wheels and metal mounting stems | Swivel function | 360-degree continuous swivel around the central gas-lift bearing for workstation access |
| Seat height adjustment | Pneumatic lever adjusts seat height over a 100 mm stroke, with 540 mm maximum seat height | Backrest recline | Synchronized tilt movement provides a 15-degree recline from upright working posture |
| Tilt lock | Side lever locks the recline mechanism in the upright position and one rear position | Tilt tension control | Under-seat rotary knob adjusts recline resistance for users up to 160 kg |
| Fixed arm support | Curved padded armrests provide 230 mm forearm support above the seat and do not adjust in height or width | Mobility | Five twin-wheel casters allow omnidirectional movement on a 700 mm polished aluminum base |
| Seating orientation | Mid-back design supports upright desk work and short recline breaks without a headrest | Floor contact | Twin-wheel casters distribute load across 10 wheels and are intended for hard office floors |
| Recline Angle / Lock Reference | 125° with 3suggested lock positions | Tilt Tension User-weight Range | Reference adjustment coverage 120 kg |
| Rotation / Mobility Configuration | 360° swivel with 5-caster multidirectional movement | 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 |
| Executive office | Suitable behind an executive desk where black upholstery and polished metal trim match a formal management office | Meeting and conference rooms | Appropriate for conference seating requiring swivel access, caster mobility, and consistent 540 mm maximum seat height |
| Private workstation | Fits daily computer work with adjustable seat height, 15-degree recline, and fixed padded forearm support | Consultation or reception areas | Usable in client meetings where a professional black chair is preferred without a high headrest |
| Hard-floor office interiors | Best suited to tile, wood, laminate, or low-pile carpet floors using the visible 60 mm twin-wheel casters | Single-user allocation | Recommended for one assigned user because fixed arms and upholstered contact surfaces require individual adjustment and care |
| Project procurement package | Can be specified in multiples with desks of 760 mm working height for uniform office fit-outs | Recommended Matching Desk Size | 2.4 m executive desk |
| Time | Field | Original Value | Corrected Value | Note / Status |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
Data source: Structured from factory data; final measured values prevail.
| Overall dimensions (W × D × H) | 620 × 620 × 1010 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
Data source: Product performance data; verify exact test conditions before procurement.
| Chair net weight | 18 kg | |
|---|---|---|
| Recommended user weight capacity | 160 kg | |
| Seat foam density | 45 kg/m3 | |
| Back foam density | 35 kg/m3 | |
| Foam rebound performance | 40% | |
| Upholstery abrasion resistance | 50,000 Martindale cycles | |
| Seat static-load acceptance target | 160 kg | |
| Caster rolling durability | 100,000 cycles | |
| Tilt mechanism cycle life | 300,000 cycles | |
| Warranty period | 5 years |
Core acceptance fields · Panels / hardware / frame / upholstery
Data source: Subject to the factory material list and inspection report.
| Seat upholstery | Black smooth upholstery over 90 mm polyurethane foam, with stitched front and side borders | |
|---|---|---|
| Backrest upholstery | Black upholstered panel over a padded internal board, with a squared top and stitched perimeter | |
| Internal seat board | 15 mm molded plywood or composite seat carrier attached to the steel mechanism | |
| Internal back frame | 12 mm shaped plywood or engineered board with edge reinforcement | |
| Seat foam | 90 mm polyurethane foam at 45 kg/m3 density and 40% rebound target | |
| Back foam | 50 mm polyurethane padding at 35 kg/m3 density | |
| Armrest pads | Black padded pads bonded to curved polished metal arm supports | |
| Arm supports | Polished aluminum or chrome-plated steel loop supports fixed between seat and back | |
| Gas lift | 50 mm diameter class-4 steel gas lift with chrome outer tube | |
| Tilt mechanism | Black powder-coated steel multi-position tilt plate with side control levers | |
| Five-star base | Polished aluminum five-star base with 700 mm footprint and five twin-wheel casters | |
| Casters | Black nylon twin-wheel casters with 60 mm wheels and metal mounting stems |
Adjustment / rotation / tilt / mobility / storage features
Data source: Functional configuration; the supplier specification prevails.
| Swivel function | 360-degree continuous swivel around the central gas-lift bearing for workstation access | |
|---|---|---|
| Seat height adjustment | Pneumatic lever adjusts seat height over a 100 mm stroke, with 540 mm maximum seat height | |
| Backrest recline | Synchronized tilt movement provides a 15-degree recline from upright working posture | |
| Tilt lock | Side lever locks the recline mechanism in the upright position and one rear position | |
| Tilt tension control | Under-seat rotary knob adjusts recline resistance for users up to 160 kg | |
| Fixed arm support | Curved padded armrests provide 230 mm forearm support above the seat and do not adjust in height or width | |
| Mobility | Five twin-wheel casters allow omnidirectional movement on a 700 mm polished aluminum base | |
| Seating orientation | Mid-back design supports upright desk work and short recline breaks without a headrest | |
| Floor contact | Twin-wheel casters distribute load across 10 wheels and are intended for hard office floors | |
| Recline Angle / Lock Reference | 125° with 3suggested lock positions | |
| Tilt Tension User-weight Range | Reference adjustment coverage 120 kg | |
| Rotation / Mobility Configuration | 360° swivel with 5-caster multidirectional movement |
Verified carton / gross weight / assembly / loading data
Data source: Reference for export quotations and container planning.
| 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
Data source: Recommended applications based on product form and category.
| Executive office | Suitable behind an executive desk where black upholstery and polished metal trim match a formal management office | |
|---|---|---|
| Meeting and conference rooms | Appropriate for conference seating requiring swivel access, caster mobility, and consistent 540 mm maximum seat height | |
| Private workstation | Fits daily computer work with adjustable seat height, 15-degree recline, and fixed padded forearm support | |
| Consultation or reception areas | Usable in client meetings where a professional black chair is preferred without a high headrest | |
| Hard-floor office interiors | Best suited to tile, wood, laminate, or low-pile carpet floors using the visible 60 mm twin-wheel casters | |
| Single-user allocation | Recommended for one assigned user because fixed arms and upholstered contact surfaces require individual adjustment and care | |
| Project procurement package | Can be specified in multiples with desks of 760 mm working height for uniform office fit-outs | |
| Recommended Matching Desk Size | 2.4 m executive desk |
EU Market Access Requirements* EN Standards
| Office furniture safety standard | EN 1335:2018, applicable to safety requirements for office work chairs | |
|---|---|---|
| Office chair dimensions | EN 1335:2020, applicable to dimensional determination for office work chairs | |
| Office chair stability | EN 1335:2020, applicable to test methods for safety and structural performance | |
| Upholstered furniture flammability | EN 1021:2014, applicable to ignition resistance of upholstered seating by smouldering cigarette | |
| Formaldehyde panel emissions | EN 13986:2004+A1:2015, applicable to wood-based panels used in building applications where relevant |
US and Canada office-furniture standards
| Office chairs standard | ANSI/BIFMA X2017(R2022), applicable to general-purpose office chair safety, strength, and durability | |
|---|---|---|
| Base and caster load tests | Recommended references: ANSI/BIFMA X2017 | |
| Formaldehyde emissions | ANSI/BIFMA e2019applicable as an optional furniture sustainability and emissions framework for panel and seating components |
Standards applicable to China-market projects
| Office chair safety standard | GB/T 28002applicable to safety, stability, durability, and static-load testing of swivel work chairs | |
|---|---|---|
| Furniture structural safety | GB/T 10357.2applicable to chair and stool stability test methods | |
| Furniture durability test | GB/T 10357.3applicable to chair and stool strength and durability test methods | |
| Upholstered furniture chemical limits | GB/T 28481applicable to plastic furniture and related material limits where plastic components are used | |
| Furniture labeling | GB/T 5296.6applicable to furniture instruction and product labeling information |
This product must meet the following technical requirements: 1. Office chair safety standard: GB/T 28002applicable to safety, stability, durability, and static-load testing of swivel work chairs; 2. Furniture structural safety: GB/T 10357.2applicable to chair and stool stability test methods; 3. Furniture durability test: GB/T 10357.3applicable to chair and stool strength and durability test methods; 4. Upholstered furniture chemical limits: GB/T 28481applicable to plastic furniture and related material limits where plastic components are used; 5. Furniture labeling: GB/T 5296.6applicable to furniture instruction and product labeling information; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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