Mid-Back Gray Upholstered Executive Swivel Office Chair (model OFC-MB-GRY-PA-01) is listed under Executive Boss Chair. Dimensions: 630 × 650 × 1010 mm. Materials: Gray smooth upholstery with tailored panel seams; leather or polyurethane alternatives require BOM confirmation. Load capacity: 500 kg. Product Features: mid-back,swivel,executive,style,upholstered,five-star,base,armrests,casters. This page consolidates 6 groups of specifications and 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-GRY-PA-01 |
| Overall dimensions (W × D × H) | 630 × 650 × 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 | 150 kg | Seat foam density | 45 kg/m3 |
| Back foam density | 35 kg/m3 | Foam rebound rating | 40% |
| Static five-star base load reference | 500 kg | Tilt mechanism cyclic durability target | 100,000 cycles |
| Caster rolling durability target | 100,000 cycles | Suggested single-user daily use | 8 hours |
| Color count | 1 visible upholstery color | Seat upholstery | Gray smooth upholstery with tailored panel seams; leather or polyurethane alternatives require BOM confirmation |
| Back upholstery | Gray upholstered contoured back with vertical recessed stitching and lumbar shaping | Seat cushion core | 80 mm molded polyurethane foam with density target 45 kg/m3 |
| Back cushion core | 35 kg/m3 polyurethane padding over a rigid load-bearing inner shell | Inner seat support board | 12 mm molded plywood or composite board bonded to the seat cushion |
| Back inner frame | 20 x 2 mm tubular steel or equivalent reinforced polymer frame | Arm pads | Black padded top pads with soft-touch surface and polished loop supports |
| Arm supports | Polished aluminum-alloy or chrome-plated steel loop brackets with 25 x 2 mm section reference | Central mechanism | Black steel multi-position tilt mechanism with 3 mm plate thickness reference |
| Gas lift | 50 mm black class 4 gas-lift cylinder with 100 mm height-adjustment stroke | Five-star base | Polished aluminum-alloy five-star base with 2.5 mm wall thickness reference |
| Casters | Five black twin-wheel nylon casters with 60 mm wheels and hard-floor treads | 360-degree swivel | Seat rotates 360 degrees around the central gas-lift bearing for workstation access |
| Gas-lift height adjustment | Pneumatic lever adjusts seat height over a 100 mm stroke from 360 to 460 mm | Synchronous tilt action | Central mechanism allows seat and back recline with a maximum 15-degree backward tilt |
| Tilt lock | One lever locks the recline mechanism in the upright position and selected intermediate positions | Tilt tension control | Front knob controls recline resistance for users within the 150 kg weight capacity |
| Fixed arm support | Loop armrests provide a 230 mm support height above the seat without height or pivot adjustment | Mobile five-point support | Five casters spread load across a 700 mm diameter footprint and enable omnidirectional movement |
| Lumbar contour support | Contoured back panel provides built-in lumbar shaping without an adjustable lumbar pump | Upholstered rotation clearance | 630 mm overall width and raised arm design allow swivel clearance beside standard 720 mm desks |
| Floor protection | Twin-wheel 60 mm nylon casters distribute load and are intended for hard floors or low-pile carpets | Recline Angle / Lock Reference | 125° with 3suggested lock positions |
| Tilt Tension User-weight Range | Reference adjustment coverage 120 kg | 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 |
| Private office | Suitable for executive desks and managerial workstations requiring a formal gray upholstered chair | Open-plan workstation | Suitable for individual task seating where swivel, tilt, and mobile casters support desk movement |
| Meeting room | Appropriate as a visitor or conference chair around 760 mm high meeting tables | Home office | Suited to daily desk work in residential offices where padded back and arm support are priorities |
| Reception or consulting room | Fits professional consultation settings with gray upholstery and polished metallic trim | Hard-floor and low-pile environments | Use on wood, tile, vinyl, or low-pile carpet subject to caster floor-rating confirmation |
| Single-user seating | Configured for one adult user with 150 kg recommended capacity and 8-hour daily-use target | 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) | 630 × 650 × 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 | 150 kg | |
| Seat foam density | 45 kg/m3 | |
| Back foam density | 35 kg/m3 | |
| Foam rebound rating | 40% | |
| Static five-star base load reference | 500 kg | |
| Tilt mechanism cyclic durability target | 100,000 cycles | |
| Caster rolling durability target | 100,000 cycles | |
| Suggested single-user daily use | 8 hours | |
| Color count | 1 visible upholstery color |
Core acceptance fields · Panels / hardware / frame / upholstery
Data source: Subject to the factory material list and inspection report.
| Seat upholstery | Gray smooth upholstery with tailored panel seams; leather or polyurethane alternatives require BOM confirmation | |
|---|---|---|
| Back upholstery | Gray upholstered contoured back with vertical recessed stitching and lumbar shaping | |
| Seat cushion core | 80 mm molded polyurethane foam with density target 45 kg/m3 | |
| Back cushion core | 35 kg/m3 polyurethane padding over a rigid load-bearing inner shell | |
| Inner seat support board | 12 mm molded plywood or composite board bonded to the seat cushion | |
| Back inner frame | 20 x 2 mm tubular steel or equivalent reinforced polymer frame | |
| Arm pads | Black padded top pads with soft-touch surface and polished loop supports | |
| Arm supports | Polished aluminum-alloy or chrome-plated steel loop brackets with 25 x 2 mm section reference | |
| Central mechanism | Black steel multi-position tilt mechanism with 3 mm plate thickness reference | |
| Gas lift | 50 mm black class 4 gas-lift cylinder with 100 mm height-adjustment stroke | |
| Five-star base | Polished aluminum-alloy five-star base with 2.5 mm wall thickness reference | |
| Casters | Five black twin-wheel nylon casters with 60 mm wheels and hard-floor treads |
Adjustment / rotation / tilt / mobility / storage features
Data source: Functional configuration; the supplier specification prevails.
| 360-degree swivel | Seat rotates 360 degrees around the central gas-lift bearing for workstation access | |
|---|---|---|
| Gas-lift height adjustment | Pneumatic lever adjusts seat height over a 100 mm stroke from 360 to 460 mm | |
| Synchronous tilt action | Central mechanism allows seat and back recline with a maximum 15-degree backward tilt | |
| Tilt lock | One lever locks the recline mechanism in the upright position and selected intermediate positions | |
| Tilt tension control | Front knob controls recline resistance for users within the 150 kg weight capacity | |
| Fixed arm support | Loop armrests provide a 230 mm support height above the seat without height or pivot adjustment | |
| Mobile five-point support | Five casters spread load across a 700 mm diameter footprint and enable omnidirectional movement | |
| Lumbar contour support | Contoured back panel provides built-in lumbar shaping without an adjustable lumbar pump | |
| Upholstered rotation clearance | 630 mm overall width and raised arm design allow swivel clearance beside standard 720 mm desks | |
| Floor protection | Twin-wheel 60 mm nylon casters distribute load and are intended for hard floors or low-pile carpets | |
| 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
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.
| Private office | Suitable for executive desks and managerial workstations requiring a formal gray upholstered chair | |
|---|---|---|
| Open-plan workstation | Suitable for individual task seating where swivel, tilt, and mobile casters support desk movement | |
| Meeting room | Appropriate as a visitor or conference chair around 760 mm high meeting tables | |
| Home office | Suited to daily desk work in residential offices where padded back and arm support are priorities | |
| Reception or consulting room | Fits professional consultation settings with gray upholstery and polished metallic trim | |
| Hard-floor and low-pile environments | Use on wood, tile, vinyl, or low-pile carpet subject to caster floor-rating confirmation | |
| Single-user seating | Configured for one adult user with 150 kg recommended capacity and 8-hour daily-use target | |
| Recommended Matching Desk Size | 2.4 m executive desk |
EU Market Access Requirements* EN Standards
| EN 1335-1 applicability | Use EN 1335for office chair dimensional verification, including seat height, depth, backrest, and clearance | |
|---|---|---|
| EN 1335-2 applicability | Use EN 1335for safety, stability, structural strength, and caster performance acceptance | |
| EN 1335-3 applicability | Use EN 1335for test methods supporting safety and structural verification of the chair | |
| EN 1022 applicability | Use EN 1022 as an additional seating stability reference where specified by the purchaser |
US and Canada office-furniture standards
| ANSI/BIFMA X5.1 applicability | Use ANSI/BIFMA X5.1 for back, seat, base, arm, caster, and durability verification of 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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