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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)	630 × 650 × 1020 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.

Recommended occupant weight	120 kg
Chair net weight	13.5 kg
Seat foam density	45 kg/m3
Back mesh tensile support rating	120 kg
Seat static load verification target	102 kg
Gas-lift cycle durability	100000 cycles
Caster rolling durability	100000 cycles
Seat sliding resistance	70 N
Recommended daily occupancy	8 hours
Seat Foam Density / Rebound Reference	45 kg/m³ / 65%

PRODUCT MODULE 03 / 06

Materials & Structure

Core acceptance fields · Panels / hardware / frame / upholstery

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

Backrest support fabric	Black flexible polyester mesh stretched over a contoured polymer frame
Back frame	Injection-molded black polypropylene outer frame with integrated ergonomic curve
Seat upholstery	Black woven polyester fabric over foam with stitched perimeter seams
Seat cushion	70 mm molded polyurethane foam on a load-bearing seat shell
Seat inner support shell	8 mm molded polypropylene load-distributing seat pan
Armrest posts	Black powder-coated steel tubular supports with polymer arm pads
Armrest pads	Injection-molded polyurethane or polypropylene contact pads with matte black finish
Mechanism cover and bracket	2.5 mm black powder-coated steel tilt plate with polymer shroud
Gas lift	50 mm black telescoping steel gas-lift cylinder with polymer telescopic shroud
Five-star base	Black glass-fiber-reinforced nylon star base with five radial legs
Casters	Black nylon twin-wheel swivel casters with steel mounting stems
Fasteners and joinery	Zinc-plated steel bolts, washers, and locking hardware with black finished covers

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 and lowers the seat over a 100 mm stroke between 440 and 540 mm
360-degree swivel	Central gas-lift swivel enables full 360-degree rotation while maintaining the five-point support footprint
Back tilt movement	Center-tilt mechanism reclines the seat and back together to a 12-degree rearward angle
Tilt tension control	Rotary tension knob adjusts backward-recline resistance for occupant weights up to 120 kg
Upright tilt lock	Single-position lock secures the chair in the upright working posture
Fixed arm support	Non-folding T-armrests provide continuous forearm support at 230 mm above the seat
Lumbar contact zone	Contoured lower mesh panel provides passive lumbar contact without a separate adjustable pillow
Rolling mobility	Five twin-wheel casters provide omnidirectional movement on hard floors and low-pile carpet
Knockdown assembly	Back, seat, armrests, gas lift, base, and casters assemble into one swivel chair
Floor contact stability	Five-star base distributes load over five contact points with a 650 mm support diameter
Recline Angle / Lock Reference	125° with 3suggested lock positions
Tilt Tension User-weight Range	Reference 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 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 workstation	Use at individual bench or panel workstations where 8-hour task support, swivel access, and compact 630 mm width are required
Private office desk	Pair with a 1200 to 1600 mm desk for daily computer, writing, and meeting tasks
Meeting and training room	Deploy around conference or training tables where rolling access and quick repositioning are needed
Home office	Use in residential study spaces with hard floors or low-pile carpet and standard 720 to 750 mm desk height
Hot-desking area	Assign to flexible desks used by different occupants because seat height adjusts over a 100 mm stroke
Reception or administrative counter	Use behind standard-height reception desks rather than fixed stools or high-counter seating
Project procurement configuration	Specify in batches for 120 kg-rated commercial seating with mesh backs and fixed arms
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 dimensional safety, including seat adjustment and stability clearances
EN 1335-2 applicability	Use as the safety and structural-performance acceptance basis for strength and stability
EN 1335-3 applicability	Use for structural durability and fatigue test methods on back, seat, arms, and base
EN 1021-1 applicability	Use for upholstery smouldering-cigarette ignition assessment if fabric fire testing is specified
EN 1021-2 applicability	Use for match-flame ignition assessment when contract seating requires enhanced fabric fire tests

STANDARD S2

North America Purchasing & Inspection Reference * ANSI/BIFMA Standards

US and Canada office-furniture standards

ANSI/BIFMA X5.1 backrest test applicability	Use back-rest strength and fatigue test methods for the mesh back and frame

STANDARD S3

Standards Applicable to China-Market Projects * GB Standards

Standards applicable to China-market projects

GB/T 10357.3 applicability	Use for chair strength and durability acceptance testing of seat, back, arms, and frame
GB/T 3324 applicability	Use for general wooden furniture technical requirements only if wood-based panels are present in the supplier BOM
GB 17927 applicability	Use for upholstered furniture fire-safety evaluation if the project requires domestic fire acceptance

Standardized tender description text

This product must meet the following technical requirements:
1. GB/T 10357.3 applicability: Use for chair strength and durability acceptance testing of seat, back, arms, and frame;
2. GB/T 3324 applicability: Use for general wooden furniture technical requirements only if wood-based panels are present in the supplier BOM;
3. GB 17927 applicability: Use for upholstered furniture fire-safety evaluation if the project requires domestic fire acceptance;
Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.

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Product Description

The Black Mesh Swivel Task Chair with Fixed Armrests and Five-Star Base is a practical mid-back office seating solution with a disciplined black finish. Its visual character comes from the flexible mesh backrest set within a contoured black polymer frame, paired with a black woven fabric seat and matte fixed T-armrests. The five-star base, twin-wheel casters, central gas lift, and compact proportions create a familiar task-chair profile suited to orderly workstation layouts, meeting rooms, and home studies. Clear width between the armrests is 540 mm, while the arm pads remain fixed at 230 mm above the seat for continuous forearm support. Construction combines breathable and structured materials. The back uses black flexible polyester mesh stretched over an injection-molded polypropylene outer frame with an integrated ergonomic curve. The lower mesh forms a passive lumbar contact zone 240 mm high, without a separate adjustable pillow. The seat features black woven polyester upholstery with stitched perimeter seams, molded polyurethane foam, and a molded polypropylene load-distributing seat pan. Cushion thickness is 90 mm at the finished seat and 70 mm at the padded backrest area. Steel appears in the powder-coated armrest posts, tilt plate, and telescoping gas-lift cylinder, while nylon and polymer components are used for structural parts, arm pads, caster construction, and protective shrouds. Functionality is centered on daily task use. A pneumatic lever adjusts seat height across a 100 mm stroke, from 440 to 540 mm. The central gas lift provides full 360-degree swivel while retaining the five-point support footprint. A center-tilt mechanism reclines the seat and back together to a 12-degree rearward angle, and a rotary knob lets the user adjust recline resistance. The single-position tilt lock secures the chair in an upright working posture. Fixed armrests offer stable support, and twin-wheel casters allow rolling access and quick repositioning. The published specification supports occupants up to 120 kg, with seat foam density of 45 kg per cubic meter and durability targets recorded at 100,000 cycles for both the gas lift and casters. This unbranded model, OC-MESH-FA5-BLK, fits open-plan bench or panel workstations, private offices, conference and training rooms, hot-desking areas, reception or administrative counters, and residential home offices. For desk pairing, the scene guidance indicates compatibility with standard home office desk heights and private office desks from 1200 to 1600 mm. At home, it is intended for hard floors or low-pile carpet. Procurement teams should note that each set is supplied in two cartons with a packaged gross weight of 23 kg and reference carton volume of 0.26 cubic meter. Reference assembly time is 40 minutes per set, making installation planning important for large training-room or floor-wide rollouts. The fixed armrests and mid-back form should be checked against each user population and table height, while the black-only finish should be evaluated alongside existing interior schemes. The indicative loading figure is 135 sets in a 20GP container at 85 percent space utilization.

Black Mesh Swivel Task Chair With Fixed Armrests and Five-Star Base Specifications

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