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Mid-Back Green Leather Swivel Executive Office Chair Specifications

OFC-MB-GRN-520Code:P2AP9GV1

Mid-Back Green Leather Swivel Executive Office Chair (model OFC-MB-GRN-520) is listed under Executive Boss Chair. Dimensions: 620 × 650 × 1000 mm. Materials: Green leather-look surface with stitched padded seat and back panels. Product Features: Executive,Style,Mid-Back,Structure,Swivel,Base,Five-Star,Support,Upholstered,Seat,Fixed,Armrests. 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.

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2026-10-31 19:41Popularity: 2
BrandJIULONGYOUSHENGModelOFC-MB-GRN-520
Overall dimensions (W × D × H)620 × 650 × 1000 mmFinished Seat Cushion Thickness90 mm
Backrest Padding Thickness70 mmLumbar Support Zone Height240 mm
Clear Width Between Armrests540 mmNet weight15 kg
Recommended user weight capacity135 kgSuitable user height range1850 mm
Seat foam density45 kg/m3Back foam density35 kg/m3
Foam rebound rating40%Fabric or leather abrasion acceptance target50,000 Martindale cycles
Gas-lift durability target100,000 height-adjustment cyclesCaster rolling durability target100,000 cycles
Suggested commercial warranty5 yearsOuter upholsteryGreen leather-look surface with stitched padded seat and back panels
Seat cushion80 mm high-resilience polyurethane foam on a load-bearing seat shellBack cushion90 mm layered polyurethane foam with horizontal lumbar contour
Internal seat frame2.0 mm steel reinforcing plate beneath the plywood or molded seat shellBack support structure1.5 mm bent steel or reinforced polymer back bracket fixed to the mechanism
ArmrestsUpholstered curved pads on polished tubular steel side supportsFive-star basePolished aluminum-alloy five-star base with 2.5 mm wall section
Gas liftBlack 50 mm steel telescopic gas lift with class 3 performance targetTilt mechanismBlack steel synchronized chassis with 2.5 mm plate and side actuating lever
CastersBlack nylon twin-wheel casters with steel swivel stemsSurface finishSatin-polished metal base with matte black mechanism and caster components
Seam constructionContinuous perimeter upholstery seam at 8 stitches per 100 mmSeat height adjustmentPneumatic lift provides 80 mm travel through a 50 mm class-3 gas column
Swivel function360-degree full rotation around the central gas-lift axisTilt operationSide lever controls recline with a 15-degree backward tilt angle
Tilt lockSingle-position upright lock through the visible black under-seat leverTilt tension controlUnder-seat tension knob adjusts resistance for users up to 135 kg
MobilityFive 60 mm twin-wheel casters provide rolling movement on hard floors or low-pile carpetArm supportFixed curved armrests provide forearm support 220 mm above the seat
Lumbar supportIntegrated horizontal padded contour provides passive mid-lumbar supportSeat orientationForward-tilting rounded cushion front reduces pressure behind the knees
Base stability640 mm five-star base distributes load during swivel and reclineRecline Angle / Lock Reference125° with 3suggested lock positions
Tilt Tension User-weight RangeReference adjustment coverage 120 kgReference Package Count1 set / 2 cartons
Reference Assembly Time40 minutes per setReference Carton Dimensions850× 420× 720 mm
Reference Packaged Gross Weight23 kg/setReference Carton Volume0.26 m³/set
Indicative 20GP Loading135 sets at 85% space utilizationIndicative 40HQ Loading320 sets at 85% space utilization
Executive officeSuitable behind a 1800 mm executive desk where the 620 mm width preserves circulation spacePrivate manager workspaceAppropriate for daily computer, meeting, and phone tasks with passive lumbar contour and swivel access
Meeting or conference roomUsable around conference tables when seat height is adjusted to 520 mmHome officeFits compact study rooms because the 650 mm depth and fixed arms reduce overall footprint
Reception consultation areaProvides mobile visitor or consultant seating with polished base and coordinated armrest stylingProcurement configurationOrder hard-floor casters for tile or wood floors and soft-floor casters for carpet
Cleaning environmentRecommended for offices with regular dry wiping and periodic upholstery maintenanceRecommended Matching Desk Size2.4 m executive desk
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PRODUCT MODULE 01 / 06

Physical Dimensions

Automatic mm / inch conversion · Core engineering specifications

Data source: Structured from factory data; final measured values prevail.

Overall dimensions (W × D × H)620 × 650 × 1000 mm
Finished Seat Cushion Thickness90 mm
Backrest Padding Thickness70 mm
Lumbar Support Zone Height240 mm
Clear Width Between Armrests540 mm
PRODUCT MODULE 02 / 06

Weight, Load & Performance

Net weight / load capacity / users / durability

Data source: Product performance data; verify exact test conditions before procurement.

Net weight15 kg
Recommended user weight capacity135 kg
Suitable user height range1850 mm
Seat foam density45 kg/m3
Back foam density35 kg/m3
Foam rebound rating40%
Fabric or leather abrasion acceptance target50,000 Martindale cycles
Gas-lift durability target100,000 height-adjustment cycles
Caster rolling durability target100,000 cycles
Suggested commercial warranty5 years
PRODUCT MODULE 03 / 06

Materials & Structure

Core acceptance fields · Panels / hardware / frame / upholstery

Data source: Subject to the factory material list and inspection report.

Outer upholsteryGreen leather-look surface with stitched padded seat and back panels
Seat cushion80 mm high-resilience polyurethane foam on a load-bearing seat shell
Back cushion90 mm layered polyurethane foam with horizontal lumbar contour
Internal seat frame2.0 mm steel reinforcing plate beneath the plywood or molded seat shell
Back support structure1.5 mm bent steel or reinforced polymer back bracket fixed to the mechanism
ArmrestsUpholstered curved pads on polished tubular steel side supports
Five-star basePolished aluminum-alloy five-star base with 2.5 mm wall section
Gas liftBlack 50 mm steel telescopic gas lift with class 3 performance target
Tilt mechanismBlack steel synchronized chassis with 2.5 mm plate and side actuating lever
CastersBlack nylon twin-wheel casters with steel swivel stems
Surface finishSatin-polished metal base with matte black mechanism and caster components
Seam constructionContinuous perimeter upholstery seam at 8 stitches per 100 mm
PRODUCT MODULE 04 / 06

Functions & Adjustment

Adjustment / rotation / tilt / mobility / storage features

Data source: Functional configuration; the supplier specification prevails.

Seat height adjustmentPneumatic lift provides 80 mm travel through a 50 mm class-3 gas column
Swivel function360-degree full rotation around the central gas-lift axis
Tilt operationSide lever controls recline with a 15-degree backward tilt angle
Tilt lockSingle-position upright lock through the visible black under-seat lever
Tilt tension controlUnder-seat tension knob adjusts resistance for users up to 135 kg
MobilityFive 60 mm twin-wheel casters provide rolling movement on hard floors or low-pile carpet
Arm supportFixed curved armrests provide forearm support 220 mm above the seat
Lumbar supportIntegrated horizontal padded contour provides passive mid-lumbar support
Seat orientationForward-tilting rounded cushion front reduces pressure behind the knees
Base stability640 mm five-star base distributes load during swivel and recline
Recline Angle / Lock Reference125° with 3suggested lock positions
Tilt Tension User-weight RangeReference adjustment coverage 120 kg
PRODUCT MODULE 05 / 06

Packaging & Logistics

Verified carton / gross weight / assembly / loading data

Data source: Reference for export quotations and container planning.

Reference Package Count1 set / 2 cartons
Reference Assembly Time40 minutes per set
Reference Carton Dimensions850× 420× 720 mm
Reference Packaged Gross Weight23 kg/set
Reference Carton Volume0.26 m³/set
Indicative 20GP Loading135 sets at 85% space utilization
Indicative 40HQ Loading320 sets at 85% space utilization
PRODUCT MODULE 06 / 06

Applications & Usage

Recommended spaces / users / usage modes

Data source: Recommended applications based on product form and category.

Executive officeSuitable behind a 1800 mm executive desk where the 620 mm width preserves circulation space
Private manager workspaceAppropriate for daily computer, meeting, and phone tasks with passive lumbar contour and swivel access
Meeting or conference roomUsable around conference tables when seat height is adjusted to 520 mm
Home officeFits compact study rooms because the 650 mm depth and fixed arms reduce overall footprint
Reception consultation areaProvides mobile visitor or consultant seating with polished base and coordinated armrest styling
Procurement configurationOrder hard-floor casters for tile or wood floors and soft-floor casters for carpet
Cleaning environmentRecommended for offices with regular dry wiping and periodic upholstery maintenance
Recommended Matching Desk Size2.4 m executive desk
STANDARD S1

EU Market Entry Requirements * EN Standards

EU Market Access Requirements* EN Standards

EN 1335-1 applicabilityUse for office-chair dimensions and ergonomic geometry verification
EN 1335-2 applicabilityUse for safety requirements including strength, stability, and structural durability
EN 1335-3 applicabilityUse for test methods covering seat, back, armrest, and base durability
EN 1021-1 applicabilityUse for cigarette-ignition upholstered-furniture flammability testing
STANDARD S2

North America Purchasing & Inspection Reference * ANSI/BIFMA Standards

US and Canada office-furniture standards

ANSI/BIFMA X5.1 applicabilityUse for office-chair safety, strength, stability, and durability acceptance in North America
STANDARD S3

Standards Applicable to China-Market Projects * GB Standards

Standards applicable to China-market projects

GB/T 10357.3 applicabilityUse for furniture strength and durability testing of chair seat and back
GB/T 27923 applicabilityUse for office-chair general technical requirements and quality inspection
GB 18584 applicabilityUse for limiting formaldehyde and harmful emissions from interior furniture materials
Standardized tender description text
This product must meet the following technical requirements:
1. GB/T 10357.3 applicability: Use for furniture strength and durability testing of chair seat and back;
2. GB/T 27923 applicability: Use for office-chair general technical requirements and quality inspection;
3. GB 18584 applicability: Use for limiting formaldehyde and harmful emissions from interior furniture materials;
Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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Product Description

Mid-Back Green Leather Swivel Executive Office Chair (model OFC-MB-GRN-520) is listed under Executive Boss Chair. Dimensions: 620 × 650 × 1000 mm. Materials: Green leather-look surface with stitched padded seat and back panels. Product Features: Executive,Style,Mid-Back,Structure,Swivel,Base,Five-Star,Support,Upholstered,Seat,Fixed,Armrests. 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.

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