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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)	650 × 650 × 1180 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	18 kg
Recommended user weight	150 kg
Static seat verification load	1020 kg
Backrest cyclic test target	150000 cycles
Seat slider or cushion fatigue target	100000 cycles
Caster rolling durability	100000 cycles
Gas-lift stroke cycles	200000 cycles
Seat foam density	45 kg/m3
Foam rebound	40%
Color options	1 color

PRODUCT MODULE 03 / 06

Materials & Structure

Core acceptance fields · Panels / hardware / frame / upholstery

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

Central backrest fabric	Breathable black mesh woven over a flexible load-bearing zone
Outer back shell	Black upholstered or polymer-faced surround forming the tall ergonomic frame
Seat cushion	Molded polyurethane foam, 80 mm thick at front edge, covered in black upholstery
Seat upholstery	Black woven fabric or synthetic leather with sewn border and 8 mm seam pitch
Upholstery abrasion target	50000 Martindale cycles
Internal seat frame	12 mm molded plywood or steel-reinforced polymer seat pan with bolted mechanism plate
Back support frame	20 x 1.5 mm steel tube or reinforced polymer spine inside the upholstered surround
Arm supports	Black painted steel tubular uprights with molded polymer T-pads
Gas lift	50 mm class-4 steel gas-lift cartridge with black telescopic shroud
Tilt mechanism	2.5 mm stamped-steel central mechanism with tension control and single lever
Five-star base	Black painted steel or glass-filled nylon five-star base with 2.5 mm wall section
Casters	Black nylon twin-wheel casters with 60 mm wheels and steel grip-neck stems

PRODUCT MODULE 04 / 06

Functions & Adjustment

Adjustment / rotation / tilt / mobility / storage features

Data source: Functional configuration; the supplier specification prevails.

Seat height adjustment	Pneumatic lift provides 100 mm travel from 450 to 550 mm using the right-side lever
360-degree swivel	Seat and back rotate freely around the gas-lift swivel bearing for multitasking access
Back recline movement	Synchronous-style tilt allows 18-degree rearward recline from upright working position
Recline lock	One-position tilt lock secures the chair in the upright working posture
Tilt tension control	Rotary knob adjusts resistance over 5 turns for user weight and recline preference
Fixed arm support	T-shaped fixed armrests maintain a 230 mm forearm support height with no height or pivot adjustment
Mobility	Five 60 mm twin-wheel casters provide omnidirectional movement on carpet, wood, and hard floors
Back ventilation	Central mesh zone allows airflow across the upper and lower back
Lumbar contact	Contoured lower back edge provides passive lumbar contact without a separate adjustable pillow
Floor protection	Twin-wheel nylon treads spread contact load and reduce point loading on hard floors
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 office workstation	Suitable for individual desk work where swivel, height adjustment, and caster mobility support frequent task changes
Private office or manager desk	High back and fixed armrests provide a formal all-black solution for daily computer and paperwork tasks
Home office	Compact 650 mm footprint fits standard desks and residential study floors with 700 mm desk knee clearance
Meeting and collaboration zones	Usable at conference tables where users turn between screens, documents, and attendees
Hot-desking environment	Easy rolling and gas-lift height change suit shared users across 550 mm seat heights
Hard-floor and low-pair carpet areas	Twin nylon casters are appropriate for routine office floors; soft-floor wheels may be specified for sensitive surfaces
Commercial procurement project	Suitable for batch fit-out where EN, GB, or BIFMA laboratory tests are requested before award
Recommended Matching Desk Size	2.4 m executive desk

STANDARD S1

EU Market Entry Requirements * EN Standards

EU Market Access Requirements* EN Standards

Office seating safety applicability	EN 1335: applicable to safety, stability, and structural requirements for office task chairs
Office seating dimensions applicability	EN 1335: applicable to office chair dimensional determination and adjustment ranges
Office seating durability applicability	EN 1335: applicable to test methods for safety and strength of office seating
Upholstered furniture flammability applicability	EN 1021and EN 1021: applicable to smouldering cigarette and match ignition resistance

STANDARD S2

North America Purchasing & Inspection Reference * ANSI/BIFMA Standards

US and Canada office-furniture standards

Office chair safety applicability	ANSI/BIFMA X5.1: applicable to office chairs for safety, static load, fatigue, stability, and swivel testing
Durability test scope	ANSI/BIFMA X5.1 back, seat, arm, pedestal, and caster clauses apply to the visible load-bearing components
Sustainable furniture applicability	ANSI/BIFMA e3: applicable to sustainable material, energy, human-health, and social-impact scoring

STANDARD S3

Standards Applicable to China-Market Projects * GB Standards

Standards applicable to China-market projects

Office chair safety applicability	GB/T 28004.1: applicable to swivel office chairs for safety, stability, and structural testing
Furniture mechanical testing applicability	GB/T 10357.3: applicable to chair strength and durability test methods
Furniture emissions applicability	GB/T 35607: applicable to furniture volatile organic chemical screening
Fabric colorfastness applicability	GB/T 3920: applicable to upholstery textile rubbing colorfastness testing

Standardized tender description text

This product must meet the following technical requirements:
1. Office chair safety applicability: GB/T 28004.1: applicable to swivel office chairs for safety, stability, and structural testing;
2. Furniture mechanical testing applicability: GB/T 10357.3: applicable to chair strength and durability test methods;
3. Furniture emissions applicability: GB/T 35607: applicable to furniture volatile organic chemical screening;
4. Fabric colorfastness applicability: GB/T 3920: applicable to upholstery textile rubbing colorfastness testing;
Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.

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Product Description

The High-Back Mesh Ergonomic Office Task Chair presents a formal all-black silhouette with a tall central backrest, upholstered or polymer-faced outer surround, padded seat, and fixed T-shaped armrests. Its five-star base and twin-wheel casters give the chair a conventional task-chair profile suited to individual workstation layouts and meeting areas. The 540 mm clear width between armrests supports a roomy seating position, while the 650 mm footprint allows use beneath standard desks with 700 mm knee clearance. Construction combines a breathable black mesh load-bearing back zone with molded foam and black woven fabric or synthetic leather upholstery. The finished cushion is 90 mm thick, with an 80 mm front-edge profile and sewn border at an 8 mm seam pitch. Backrest padding is 70 mm thick, and the lumbar support zone is 240 mm high. Internally, the seat uses a 12 mm molded plywood or steel-reinforced polymer pan with a bolted mechanism plate, while the back is supported by a 20 by 1.5 mm steel tube or reinforced polymer spine. Painted steel tubular arm uprights, molded polymer pads, a class-4 50 mm steel gas-lift cartridge with black telescopic shroud, and painted metal five-star base complete the structure. The chair weighs 18 kg and is intended for users up to 150 kg. Functional adjustment is centered on daily desk work. The right-side lever controls 100 mm of pneumatic seat-height travel, from 450 to 550 mm. A full swivel supports movement between tasks, and synchronous-style tilt permits an 18-degree rearward recline. The one-position lock secures the upright posture, while a five-turn tension knob lets the user tailor recline resistance. Armrests remain fixed at a 230 mm forearm support height. Five 60 mm nylon twin-wheel casters provide omnidirectional movement on carpet, wood, and hard floors; soft-floor wheels can be specified for sensitive surfaces. The chair is appropriate for open-plan workstations, private offices, manager desks, home studies, conference settings, and hot-desking floors. Durability targets include 150000 backrest cycles, 100000 seat-slider or cushion fatigue cycles, 100000 caster rolling cycles, 200000 gas-lift stroke cycles, and 50000 Martindale upholstery abrasion cycles. Procurement teams should note the unbranded HB-MESH-TASK-01 model ships as one set in two cartons with a packaged gross weight of 23 kg and 0.26 cubic meter total volume. Reference assembly time is 40 minutes per set, and a 20GP container can accommodate 135 sets at 85 percent space utilization.

High-Back Mesh Ergonomic Office Task Chair Specifications

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