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OC-MB-001

Code：Q6VKJVV1
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Mid-Back Black Upholstered Ergonomic Office Task Chair Key Specifications 2026-08-02 11:08

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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 (max)540 mm
Backrest width480 mm
Backrest height520 mm
Armrest height from seat (max)200 mm
Five-star base diameter700 mm
Caster diameter60 mm
Seat height (max)540 mm
Armrest pad width80 mm
Seat cushion thickness80 mm
Backrest cushion thickness60 mm
Finished Seat Cushion Thickness90 mm
Backrest Padding Thickness70 mm
Lumbar Support Zone Height240 mm
PRODUCT MODULE 02 / 06

Weight, Load & Performance

Net weight / load capacity / users / durability

Recommended maximum user weight120 kg
Net weight range (max)18 kg
Backrest tilt lock angle (max)12 degrees
Gas lift stroke100 mm
Armrest static load rating80 kg
Caster rolling cycle rating (max)100000 cycles
Seat foam density (max)45 kg/m³
Seat Foam Density / Rebound Reference45 kg/m³ / 65%
Back Foam Density Reference38 kg/m³
Upholstery Thickness / Abrasion Reference1.4 mm / 50000 cycles
PRODUCT MODULE 03 / 06

Materials & Structure

Core acceptance fields · Panels / hardware / frame / upholstery

Seat and backrest upholsteryBlack polyurethane faux leather with matte finish
Seat cushion foamHigh-density polyurethane foam, molded construction
Backrest foamMedium-density polyurethane foam, contoured support
Internal seat framePlywood or steel reinforcement frame
Five-star baseReinforced nylon (PA) with ribbed underside structure
Gas lift cylinderChrome-plated steel Class 3 gas spring
ArmrestsHard nylon T-pad with integral support post
CastersDual-wheel black nylon with steel axle
Tilt mechanism housingBlack powder-coated steel chassis
Internal seat and back framePlywood-reinforced steel internal frame with welded support brackets
Armrest assemblyHard nylon T-shaped arm pad with one-piece integrated support post, mounted directly to seat frame
Adjustment control leversGlass-filled nylon lever handles with steel actuation rods
PRODUCT MODULE 04 / 06

Functions & Adjustment

Adjustment / rotation / tilt / mobility / storage features

Seat height adjustmentPneumatic lift via right-side lever, 100 mm total vertical travel
Backrest tilt with lockSync-style recline up to 12 degrees from upright, with position lock
Tilt tension controlRotary knob adjusts recline resistance to match user weight
Fixed T-armrestsStationary height and width, with flat horizontal arm pad
360-degree swivelFull continuous rotation around the gas lift axis
MobilityFive dual-wheel casters for rolling on carpet and hard floors
Weight distributionFive-point base load spread for stable seating under 120 kg maximum user load
Backrest tilt with position lockSync-style recline mechanism delivering up to 12 degrees of backward tilt from upright seat position, with single-position lock
Tilt tension adjustmentRotary tension knob under front of seat adjusts recline resistance to match user body weight
Fixed T-armrest supportStationary armrests with fixed height and fixed width, fitted with flat horizontal arm pads for forearm resting
360-degree swivel functionFull continuous unobstructed rotation around the vertical gas lift axis
Multi-surface mobilityFive dual-wheel swivel casters enable rolling movement on low-pile carpet and hard office flooring
PRODUCT MODULE 05 / 06

Packaging & Logistics

Verified carton / gross weight / assembly / loading data

Packaging format1 carton per unit, flat-pack knockdown configuration
Carton dimensions750 x 650 x 350 mm
Gross weight21 kg
Volume per carton0.171 CBM
Assembly time (max)30 minutes
20ft container loading quantity (max)240 units
Warranty period (commercial use)2 years
Reference Package Count1 set / 2 cartons
Reference Assembly Time40 minutes per set
Reference Carton Dimensions850× 420× 720 mm
PRODUCT MODULE 06 / 06

Applications & Usage

Recommended spaces / users / usage modes

General office workstationsSuitable for 8-hour daily desk work at standard 760 mm height desks
Conference and meeting roomsAppropriate for visitor and attendee seating around conference tables
Home office and remote workCompatible with residential desk setups and mixed flooring types
Administrative and reception areasSuitable for front-desk and administrative staff seating
Co-working and flexible spacesFit for shared workstations with rotating users
Co-working and flexible workspacesFit for shared hot-desk workstations with rotating daily users
Recommended Matching Desk Size2.4 m executive desk
Reference Daily Use Duration8 hours/day; confirm by ergonomic testing
STANDARD S1

EU EN Standards

European market access and chemical requirements

EN 1335-12020
EN 1335-22019
STANDARD S2

North America ANSI/BIFMA Standards

US and Canada office-furniture standards

No standards data is available for this market.
STANDARD S3

China GB Standards

Standards applicable to China-market projects

GB/T 14728.1-2022 || Recommended Chinese national standard for office furniture - chairs - Part 1Determination of dimensions, applicable for dimensional acceptance of office task chairs
GB/T 39223.3-2020 || Recommended Chinese national standard for office furniture - Chairs - Part 3Mechanical safety requirements and test methods, applicable for structural load and durability acceptance
Standard Tender Description
This product must meet the following technical requirements:
1. GB/T 14728.1-2022 || Recommended Chinese national standard for office furniture - chairs - Part 1: Determination of dimensions, applicable for dimensional acceptance of office task chairs;
2. GB/T 39223.3-2020 || Recommended Chinese national standard for office furniture - Chairs - Part 3: Mechanical safety requirements and test methods, applicable for structural load and durability acceptance;
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

The Mid-Back Black Upholstered Ergonomic Office Task Chr (model OC-MB-001) is an unbranded entry-level task seating solution designed for versatile dly use across commercial and residential settings. Its visual profile features a sleek, uniform black aesthetic with smooth matte polyurethane faux leather upholstery on both the seat and contoured mid-back backrest, pred with a matte black reinforced nylon five-star base and fixed T-shaped hard nylon armrests for a cohesive, professional appearance. The chr’s compact mid-back form balances support and space efficiency, with flat horizontal arm pads that complement its streamlined silhouette. Constructed for durability, the chr integrates a plywood-reinforced steel internal frame with welded support brackets, a chrome-plated Class 3 gas lift cylinder, and a black powder-coated steel tilt mechanism chassis. The seat uses high-density molded polyurethane foam for cushioning, while the backrest employs medium-density contoured foam to deliver targeted lumbar support. Its five-star nylon base includes a ribbed underside structure for enhanced stability, and dual-wheel black nylon casters with steel axles provide smooth mobility. All adjustment controls are positioned under the seat for intuitive access. Functionally, the chr supports a range of posture adjustments to suit individual user needs. Pneumatic seat height adjustment is operated via a right-side lever, delivering 100 mm of vertical travel to align with standard desk heights. A sync-style backrest tilt mechanism offers up to 12 degrees of recline from the upright position, with a position lock and a rotary tension knob that adjusts recline resistance to match user weight. Fixed T-armrests provide stable forearm support, while full 360-degree swivel capability enables easy movement and collaboration. The five-point base distributes weight evenly to support a maximum user weight of 120 kg, and the dual-wheel casters roll effectively on both low-pile carpet and hard flooring surfaces. This chr is suited for a broad spectrum of spaces. In commercial settings, it works well at general office workstations for 8-hour dly use, in conference and meeting rooms for attendee seating, at administrative and reception desks, and in co-working and flexible hot-desk environments where rotating users require adjustable, easy-to-clean seating. For residential use, it fits seamlessly into home office setups, with its compact footprint and multi-surface mobility adapting well to dedicated workspaces with mixed flooring. For procurement planning, each unit ships as a flat-pack knockdown configuration in a single carton, with a gross weight of 21 kg and a volume of 0.171 CBM. Assembly takes 30 minutes for one person using standard tools, and a 20ft contner holds 240 units with standard pallet stacking efficiency. The chr carries a 2-year commercial warranty covering structural and upholstery defects, making it a cost-effective choice for bulk seating deployments across diverse work environments.

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