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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)	670 × 670 × 1290 mm
Seat width	500 mm
Seat depth	480 mm
Seat height (adjustable range maximum)	546 mm
Backrest height	750 mm
Headrest height adjustment stroke	100 mm
Lumbar support depth adjustment	30 mm
Five-star base diameter	350 mm
Caster diameter	60 mm
Armrest height above seat	230 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 maximum user weight	181 kg
Net weight	20 kg
Five-star base static load rating	1136 kg
Caster rolling durability cycles	100000
Seat foam density	45 kg/m³
Seat foam durability	6000 hours
Mesh back abrasion resistance	50000 rubs
Back frame static load capacity	120 kg
Seat Foam Density / Rebound Reference	45 kg/m³ / 65%
Back Foam Density Reference	38 kg/m³

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 upholstery	Breathable black 3D woven polyester mesh
Backrest internal frame	Reinforced nylon (PA66) with fiberglass additive
Seat cushion core	45 kg/m³ high-density cold-cured polyurethane foam
Seat upholstery	Black wear-resistant woven fabric over foam
Armrest construction	Black PP (polypropylene) frame with padded PU top surface
Central support column	Chrome-plated steel Class 3 gas lift cylinder
Five-star base	Injection-molded black nylon (PA)
Casters	60mm diameter black PU (polyurethane) soft roller
Tilt mechanism plate	2.5mm thick stamped steel with black powder coat
Seat underside shell	Black molded PP (polypropylene)
Headrest upholstery	Matching black breathable mesh over curved PP frame
Seat Internal Support Board Thickness	14 mm bent plywood or equivalent support board

PRODUCT MODULE 04 / 06

Functions & Adjustment

Adjustment / rotation / tilt / mobility / storage features

Data source: Functional configuration; the supplier specification prevails.

Seat height adjustment	100mm vertical travel via right-side underseat lever, pneumatic gas lift
Backrest tilt function	25° recline from 90° upright, single-position tilt lock
Headrest adjustment	100mm vertical height adjustment + 60° tilt rotation
Lumbar support adjustment	30mm depth projection adjustment, height-aligned with lower back
Armrest adjustment	80mm vertical height adjustment via side release button
Caster mobility	Smooth omnidirectional rolling on all floor types
Tilt tension control	Variable resistance adjustment via underseat rotary knob
Headrest rotation angle	60°
Backrest tilt range (maximum)	115°
Recline Angle / Lock Reference	125° with 3suggested lock positions
Tilt Tension User-weight Range	Reference adjustment coverage 120 kg
Rotation / Mobility Configuration	360° swivel with 5-caster multidirectional movement

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 office workstations	Suitable for 8-hour daily seated work, breathable mesh reduces heat buildup
Home office setups	Compact footprint fits standard 1600 mm wide desks, swivel eases multitasking
Meeting room task seating	Professional black finish matches modern office interiors, easy rolling for repositioning
Administrative staff workspaces	Adjustable features fit 5th-95th percentile adult users for shared desk use
Light-duty executive offices	Padded seat and ergonomic support suit extended computer work sessions
Co-working spaces	Durable components withstand frequent user adjustment and movement
Recommended Matching Desk Size	2.4 m executive desk
Reference Daily Use Duration	8 hours/day; confirm by ergonomic testing

STANDARD S1

EU Market Entry Requirements * EN Standards

EU Market Access Requirements* EN Standards

EN 1335-1:2020	Applicable to office work chair dimensional and safety requirements
EN 1335-2:2018	Applicable to office chair strength, durability and stability testing
EN 1335-3:2020	Applicable to office chair test methods for structural verification

STANDARD S2

North America Purchasing & Inspection Reference * ANSI/BIFMA Standards

US and Canada office-furniture standards

ANSI/BIFMA X5.1-2017	Applicable to general-purpose office chair safety and performance requirements
Gas lift durability cycles	120000

STANDARD S3

Standards Applicable to China-Market Projects * GB Standards

Standards applicable to China-market projects

GB/T 35607-2017	Applicable to green product evaluation for office furniture, for procurement environmental criteria
GB 28007-2011	Applicable to office chair stability and strength requirements, for structural acceptance
GB/T 10357.3-2013	Applicable to mechanical performance test methods for chairs and stools

Standardized tender description text

This product must meet the following technical requirements:
1. GB/T 35607-2017: Applicable to green product evaluation for office furniture, for procurement environmental criteria;
2. GB 28007-2011: Applicable to office chair stability and strength requirements, for structural acceptance;
3. GB/T 10357.3-2013: Applicable to mechanical performance test methods for chairs and stools;
Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.

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Product Description

This high-back black mesh ergonomic office task chair delivers structured, professional seating built for extended daily use across shared and dedicated workspaces. Its unified, streamlined silhouette pairs a contoured tall mesh backrest with a generously proportioned cushioned seat, curved height-adjustable headrest, and padded armrests, all anchored to a stable five-star base with smooth-rolling casters. The consistent matte black finish creates a cohesive, understated look that aligns with a broad range of modern interior design schemes, while its swivel function supports easy movement between adjacent work surfaces without requiring users to stand or reposition the chair manually. The chair is constructed for long-term durability and consistent comfort. Its backrest uses breathable black 3D woven polyester mesh stretched over a reinforced fiberglass-enhanced nylon frame, designed to promote consistent air flow to reduce heat buildup during long seated sessions. The seat features a high-density cold-cured polyurethane foam core wrapped in wear-resistant black woven fabric, paired with a 2.5mm thick powder-coated stamped steel tilt mechanism and chrome-plated steel Class 3 gas lift column for reliable structural support. The five-star base is formed from injection-molded black nylon, fitted with soft polyurethane casters that roll smoothly across all floor types without causing surface damage. Armrests use rigid polypropylene frames topped with padded polyurethane surfaces for soft forearm support. Full ergonomic adjustability lets users tailor the chair to their individual preferences: seat height adjusts via a right-side underseat lever, the backrest reclines 25 degrees from its upright position with a single-position tilt lock, and tilt resistance can be fine-tuned with an underseat rotary knob. The headrest offers both vertical height adjustment and tilt rotation, while the built-in lumbar support adjusts for depth to align properly with the lower back. Armrests adjust vertically via a side release button to match varying desk heights and seated postures. This chair is well suited for open office workstations, home office setups, meeting rooms, administrative shared workspaces, light-duty executive offices, and co-working environments. It accommodates a wide range of adult body types for shared desk use, fits standard desk configurations, and holds up to frequent adjustment and repositioning common in high-traffic shared spaces. For procurement planning, note that each unit ships in two cartons, requires on-site assembly, and carries a recommended maximum user weight aligned with commercial use standards. Its durable components are tested to withstand regular daily use, making it a practical choice for both permanent installation and flexible, reconfigurable work environments.

High-Back Black Mesh Ergonomic Office Task Chair with Adjustable Headrest Specifications

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