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OC-MB-001

Code：18A5C8V1
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Mid-Back Mesh Office Task Chair with Fixed White Armrests and Chrome Base Key Specifications 2026-08-02 11:19

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OC-MB-001

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PRODUCT MODULE 01 / 06

Physical Dimensions

Automatic mm / inch conversion · Core engineering specifications

Overall dimensions620 x 600 x 1050 mm
Seat width500 mm
Seat depth480 mm
Seat height range (floor to top of seat)520 mm
Backrest width490 mm
Backrest height540 mm
Armrest height above seat210 mm
Armrest pad width60 mm
Chrome 5-star base diameter600 mm
Caster diameter50 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

Recommended maximum user weight120 kg
Chair net weight reference14 kg
Seat foam density reference45 kg/m³
Gas lift class referenceClass 3
Caster rolling durability reference100000 cycles
Stitch pitch on seat upholstery8 stitches per 50 mm
Seat foam density45 kg/m³
Gas lift classClass 3
Backrest tilt tension range120 N
Seat Foam Density / Rebound Reference45 kg/m³ / 65%
PRODUCT MODULE 03 / 06

Materials & Structure

Core acceptance fields · Panels / hardware / frame / upholstery

Backrest panelGrey breathable mesh fabric stretched over rigid plastic inner frame
Seat cushionGrey woven fabric upholstery over molded polyurethane foam core with plywood inner support
Armrest assemblyWhite/light grey rigid nylon frame with integrated flat arm pad, fixed to seat pan side brackets
Height adjustment mechanismBlack steel control chassis under seat with single-side adjustment lever, paired with chrome-plated pneumatic gas lift cylinder
Base structureChrome-plated steel 5-star base with tapered leg profile and polished finish
CastersBlack dual-wheel casters with dark outer tread, fitted into base leg sockets
Backrest frame edgeDark grey plastic outer frame border holding mesh tension and connecting to seat tilt mechanism
Backrest outer frameDark grey ABS plastic outer frame border holding mesh tension and connecting to seat tilt mechanism via lower mounting brackets
Gas lift cylinderChrome-plated steel outer tube with internal nitrogen-filled pneumatic structure, connecting seat mechanism to base center hub
Control mechanism housingBlack engineering plastic outer cover enclosing internal steel tilt and height control components, mounted to underside of seat pan
Seat Internal Support Board Thickness14 mm bent plywood or equivalent support board
Backrest Internal Frame Thickness14 mm bent plywood/composite reinforced frame
PRODUCT MODULE 04 / 06

Functions & Adjustment

Adjustment / rotation / tilt / mobility / storage features

Seat height adjustmentPneumatic gas lift operated by left-side lever, providing vertical height change to match desk surface height
Swivel function360-degree continuous rotation around central gas lift axis, supported by bearing at base connection
Backrest tilt functionLimited rocker recline with tension adjustment, allowing backrest to flex backward with user weight during seated movement
Fixed armrest supportRigid fixed-position armrests mounted to seat pan sides, providing stable forearm support without height or width adjustment
Mobility functionFive dual-wheel casters enable smooth rolling on hard or low-pile carpet surfaces and easy chair repositioning across office floors
Breathable back supportStretched mesh backrest distributes back pressure and promotes air circulation for extended seated work
Tilt tension adjustmentRotary knob under seat front adjusts backrest tilt resistance to accommodate user weights between 50kg and 120kg, with clockwise rotation increasing tension
Recline Angle / Lock Reference125° with 3 suggested lock positions
Tilt Tension User-weight RangeReference adjustment coverage 120 kg
Rotation / Mobility Configuration360° swivel with 5-caster multidirectional movement
PRODUCT MODULE 05 / 06

Packaging & Logistics

Verified carton / gross weight / assembly / loading data

Packing configuration1 chair per carton, flat-pack knockdown with seat, backrest, armrests, base, gas lift and casters separated
Carton dimensions650 x 350 x 600 mm
Gross weight per carton16 kg
CBM per carton0.137 m³
Assembly time per unit20 minutes
20ft container loading quantity280 units
20ft general purpose container loading quantity280 units
40ft general purpose container loading quantity600 units
Reference Package Count1 set / 2 cartons
Reference Assembly Time40 minutes per set
PRODUCT MODULE 06 / 06

Applications & Usage

Recommended spaces / users / usage modes

Open-plan office workstationSuitable for daily computer work at standard 750 mm height desks in open office environments
Staff task seatingDesigned for regular full-time office workers performing administrative, data entry or general desk tasks
Meeting and conference roomsAppropriate for conference room seating where swivel mobility and neutral modern appearance are required
Home office setupCompatible with home office desks for remote work or study use, with compact footprint for smaller rooms
Shared workstation areasSuitable for hot-desking or shared workstations due to easy height adjustment and durable easy-to-clean mesh surface
Shared workstation hot-desk areasSuitable for hot-desking or shared workstations in co-working spaces due to quick pneumatic height adjustment and easy-to-clean mesh surface
Training room seatingSuitable for corporate training rooms with modular desk layouts, where mobile swivel seating supports group activities and frequent layout changes
Reception and visitor areasAppropriate for office reception area visitor seating with a professional modern appearance that matches standard office furniture aesthetics
STANDARD S1

EU EN Standards

European market access and chemical requirements

EN 1335-12020: Office furniture - Office work chair - Part 1: Dimensions - Determination of dimensions
EN 1335-22019: Office furniture - Office work chair - Part 2: Safety requirements
STANDARD S2

North America ANSI/BIFMA Standards

US and Canada office-furniture standards

BIFMA X5.1-2017General Requirements for Office Chairs
STANDARD S3

China GB Standards

Standards applicable to China-market projects

GB/T 14728-2010Office furniture - Chairs - Determination of strength, durability and stability
GB/T 39223.3-2020Furniture - Environmental evaluation of furniture - Part 3: Office furniture
GB/T 26705-2011Furniture - Classification and coding of office furniture
Standard Tender Description
This product must meet the following technical requirements:
1. GB/T 14728-2010: Office furniture - Chairs - Determination of strength, durability and stability;
2. GB/T 39223.3-2020: Furniture - Environmental evaluation of furniture - Part 3: Office furniture;
3. GB/T 26705-2011: Furniture - Classification and coding of office furniture;
Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
GENERATED EXPORTS

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Technical Report PDF

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PDF · OC-MB-001

Complete Parameter Workbook

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XLSX · OC-MB-001

International Listing Template

English title, specifications, materials, standards and purchasing fields.

XLSX · LISTING

Customs Declaration Data

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CUSTOMS · OC-MB-001Open Export Tool

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Product Overview & Construction Details

This mid-back mesh office task chair presents a clean, modern silhouette defined by a grey mesh backrest framed in dark grey plastic, paired with a grey woven fabric seat, fixed white armrests, and a polished chrome 5-star base. The chair’s compact footprint positions it as a versatile seating solution for both commercial and residential work settings. The fixed armrests sit at a consistent height above the seat, while the tapered chrome base and black dual-wheel casters create a balanced, functional visual profile suitable for a range of interior decor schemes. Constructed with a breathable mesh back stretched over a reinforced inner frame, the chair delivers targeted back support and promotes air circulation during extended seated periods. The seat features a molded foam core with internal plywood support, upholstered in durable grey woven fabric for long-term comfort. The armrests are built from rigid white nylon, mounted securely to the seat pan sides for stable forearm support. Height adjustment is handled by a chrome-plated pneumatic gas lift paired with a black steel control mechanism under the seat, while the chrome steel base provides a stable foundation for movement and rotation. Functional features include pneumatic seat height adjustment operated by a left-side lever, 360-degree continuous swivel, and limited backrest tilt with adjustable tension to accommodate different user weights. The fixed armrests offer consistent support without additional adjustment, and the five dual-wheel casters enable smooth mobility across hard floors and low-pile carpet. The mesh back design distributes back pressure evenly, making the chair well-suited for regular daily use. This chair fits seamlessly into open-plan office workstations, staff task seating areas, meeting and conference rooms, training rooms, and shared hot-desking or co-working spaces. It also works effectively in home office setups and reception or visitor areas, thanks to its neutral color palette, compact size, and professional appearance. The quick height adjustment feature supports easy reconfiguration between multiple users in shared environments. For procurement planning, the chair ships as a flat-pack knockdown unit with all components separated, requiring assembly with standard tools. Each unit is packed in a single carton with foam protection for transit. The chrome base, mesh back, and fixed arm configuration make the model a cost-effective choice for bulk office seating deployments, and its neutral aesthetic allows for easy coordination with existing office furniture collections.

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