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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 × 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

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 weight	13 kg
Recommended user weight capacity	120 kg
Gas-lift vertical stroke	100 mm
Tilt travel	12 degrees
Swivel rotation	360 degrees
Base static load verification target	1000 kg
Caster rolling durability target	100000 cycles
Seat impact durability target	100000 cycles
Backrest tensile durability target	150000 cycles
Recommended daily occupancy	8 hours

PRODUCT MODULE 03 / 06

Materials & Structure

Core acceptance fields · Panels / hardware / frame / upholstery

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

Back support mesh	Black woven polyester mesh stretched within a polymer frame
Back outer frame	Black molded polypropylene or nylon-composite back frame
Seat upholstery	Black woven polyester fabric over contoured foam cushion
Seat cushion foam	60 mm molded polyurethane foam with density 35 kg/m3
Seat inner support	12 mm molded plywood or polymer seat shell with steel reinforcing plate
Arm pads	Black soft-touch polyurethane pads on rigid polymer carriers
Arm supports	Injection-molded nylon or polypropylene fixed supports with steel mounting screws
Mechanism cover	Black stamped-steel tilt mechanism under the seat with polymer lever handles
Gas lift	Chrome-plated steel inner tube with black steel or polymer outer sleeve
Five-star base	Black glass-fiber-reinforced nylon five-star base
Casters	Black polyurethane twin-wheel casters with nylon wheel forks and steel kingpins
Seat seam construction	Sewn fabric border with 8 mm seam pitch target

PRODUCT MODULE 04 / 06

Functions & Adjustment

Adjustment / rotation / tilt / mobility / storage features

Data source: Functional configuration; the supplier specification prevails.

Seat height adjustment	Pneumatic lever raises or lowers the seat through 100 mm between 430 and 530 mm
Swivel function	Central bearing and gas lift allow 360-degree seated rotation
Back tilt control	Tilt mechanism permits 12-degree synchronized or seat-centered rocking motion
Tilt tension adjustment	Right-side rotary knob adjusts backward resistance for user weights up to 120 kg
Upright lock position	Single upright lock position secures the back at 98 degrees for task work
Fixed arm support	T-shaped non-folding armrests provide 230 mm forearm support without height adjustment
Mobile movement	Five 50 mm twin-wheel casters provide rolling and 360-degree caster steering
Lumbar contact	Framed lower mesh panel creates passive lumbar contact without an adjustable pillow
Back ventilation	Open woven mesh allows air circulation across the upper and lower back
Single-tool assembly	Back, arm supports, seat mechanism, gas lift, base, and casters separate for bolted assembly
Backrest recline angle	98 degrees
Recline Angle / Lock Reference	125° with 3suggested lock positions

PRODUCT MODULE 05 / 06

Packaging & Logistics

Verified carton / gross weight / assembly / loading data

Data source: Reference for export quotations and container planning.

Packaged gross weight	15 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

PRODUCT MODULE 06 / 06

Applications & Usage

Recommended spaces / users / usage modes

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

Open-plan office workstation	Suitable for single-shift desks where 430 to 530 mm seat height supports standard 720 to 760 mm desks
Home office	Compact 620 mm footprint fits small study rooms while retaining tilt and mobile support
Meeting and conference room	Fixed arms and neutral black finish provide consistent seating around shared tables
Hot-desk and shared workspace	360-degree swivel and rolling casters support frequent repositioning between users
Computer-based task work	Mesh back and passive lumbar contact suit keyboard and monitor tasks over an 8-hour occupancy target
Training room standardization	One-carton knockdown design and 20-minute assembly support multi-unit rollout
Hard-floor office environment	50 mm polyurethane twin wheels are appropriate for tile, wood, laminate, and low-pile carpeted floors
Recommended Matching Desk Size	2.4 m executive desk

STANDARD S1

EU Market Entry Requirements * EN Standards

EU Market Access Requirements* EN Standards

EN 1335-1 applicability	Use for office chair dimensions, including seat height, depth, clearance, and adjustment ranges
EN 1335-2 applicability	Use for office chair safety, strength, and durability test requirements
EN 1021-1 applicability	Use for upholstered seating ignitability assessment with a smouldering cigarette
EN 1021-2 applicability	Use for upholstered seating ignitability assessment with a match flame

STANDARD S2

North America Purchasing & Inspection Reference * ANSI/BIFMA Standards

US and Canada office-furniture standards

ANSI/BIFMA X5.1 back strength applicability	Use for static and cyclic back-rest load evaluation of office chairs
ANSI/BIFMA e3 applicability	Use for material, energy, human-health, and social-impact credits when sustainable procurement is required

STANDARD S3

Standards Applicable to China-Market Projects * GB Standards

Standards applicable to China-market projects

GB/T 10357.2 applicability	Applicable standards and test results require confirmation
GB/T 10357.3 applicability	Use for chair and stool strength and durability loading tests
GB/T 27927 applicability	Use for evaluating formaldehyde and other emissions from upholstered furniture materials

Standardized tender description text

This product must meet the following technical requirements:
1. GB/T 10357.2 applicability: Applicable standards and test results require confirmation;
2. GB/T 10357.3 applicability: Use for chair and stool strength and durability loading tests;
3. GB/T 27927 applicability: Use for evaluating formaldehyde and other emissions from upholstered furniture materials;
Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.

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Product Description

The Mid-Back Mesh Swivel Task Chair with Fixed Arms and Nylon Base is an unbranded office task chair, model MBM-TASK-50-BLK, presented in a consistent black finish. Its clean, functional form combines a contoured fabric seat, mid-height mesh back, fixed T-shaped armrests, and a five-star caster base. The open mesh back is stretched within a molded polymer frame, giving the chair a lighter visual profile than fully upholstered seating while maintaining a structured, professional appearance suitable for shared and individual work areas. The fixed arms define a clear seating width and create an orderly, uniform look when multiple chairs are arranged at desks or conference tables. Construction balances comfort, support, and durable movement. The back uses black woven polyester mesh set in a black molded polypropylene or nylon-composite frame. The seat is upholstered in black woven polyester fabric over a contoured cushion built with molded polyurethane foam and supported by a molded plywood or polymer seat shell with a steel reinforcing plate. Arm pads are soft-touch polyurethane on rigid polymer carriers, while fixed arm supports are injection-molded nylon or polypropylene and secured with steel mounting screws. Under-seat components include a stamped-steel tilt mechanism with polymer lever handles, a chrome-plated steel gas-lift inner tube with a black outer sleeve, a nylon five-star base, and polyurethane twin-wheel casters. The chair weighs 13 kg and is rated for a recommended user weight of 120 kg. Everyday operation is centered on flexible task support. A pneumatic lever adjusts seat height through a 100 mm stroke, from 430 to 530 mm. The central bearing and gas lift enable 360-degree swivel rotation, and five twin-wheel casters allow smooth rolling and steering. The tilt mechanism provides 12 degrees of synchronized or seat-centered rocking motion, with a right-side rotary knob to adjust backward resistance. A single upright lock secures the back at 98 degrees for focused task work. Fixed armrests offer 230 mm of forearm support without height adjustment, and the mid-back mesh provides passive lumbar contact for computer-based work. This chair is appropriate for open-plan workstations, home studies, meeting rooms, hot-desk environments, training rooms, and other desk-based spaces. Its black appearance coordinates with standard office furniture, while swivel and mobile features support frequent repositioning. The seat-height range suits standard desk heights, and the compact footprint is useful where space is limited. Procurement teams should plan around delivery as one set across two cartons, with on-site assembly required. The supplied logistics details list differing packaged weight references, so shipment planning should confirm freight figures and packaging configuration with the supplier before bulk ordering. Fixed arms and non-adjustable lumbar geometry should also be checked against user needs, and caster choice should be matched to the intended floor type.

Mid-Back Mesh Swivel Task Chair with Fixed Arms and Nylon Base Specifications

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