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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 × 1260 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 user weight capacity	136 kg
Net weight reference	16 kg
Seat loading area	0.24 m2
Back support height coverage	680 mm
Headrest support area	0.061 m2
Recommended user height range	160 to 190 cm
Seat foam density	45 kg/m3
Foam rebound resilience	40%
Seat impact durability acceptance	100000 cycles
Caster rolling durability acceptance	100000 cycles

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 and headrest	Black woven polyester mesh tensioned in a molded polymer frame
Seat cushion	Fabric-upholstered high-resilience foam on a molded plywood or polymer seat pan
Armrests	Black molded polymer T-arms with padded or polymer contact surfaces
Gas lift	Chromed steel telescopic tube with a black outer shroud and polymer actuator
Five-star base	Black glass-filled nylon spider base with five radiating legs
Casters	Black polymer twin-wheel swivel casters with steel fork axles

PRODUCT MODULE 04 / 06

Functions & Adjustment

Adjustment / rotation / tilt / mobility / storage features

Data source: Functional configuration; the supplier specification prevails.

Pneumatic height adjustment	Right-side lever raises or lowers the seat through a 100 mm stroke via the 50 mm gas lift
Swivel function	360-degree swivel around the central gas-lift axis
Backrest recline	Center-rate tilt mechanism reclines to 15 degrees with tension control and lockout
Headrest adjustment	Headrest provides 80 mm height adjustment and 20-degree angular tilt

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

PRODUCT MODULE 06 / 06

Applications & Usage

Recommended spaces / users / usage modes

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

Office workstation use	Suitable for individual workstations, computer desks and 760 mm office surfaces because the seat adjusts from 450 to 550 mm
Managerial and shared workspaces	Appropriate for private offices, hot desks and administrative areas requiring head, lumbar and arm support

STANDARD S1

EU Market Entry Requirements * EN Standards

EU Market Access Requirements* EN Standards

EN 1335-1 office furniture seating dimensions	Use dimensional safety, adjustability and clearance requirements for task-office seating
EN 1335-2 office chair safety	Require structural safety verification for seat, back, arms, gas lift and base components
EN 1335-3 office chair test methods	Use standardized strength, durability and stability test methods for acceptance verification
EN 1021-1 upholstered furniture ignition resistance	Require smouldering-cigarette ignition testing for fabric and foam seating components

STANDARD S2

North America Purchasing & Inspection Reference * ANSI/BIFMA Standards

US and Canada office-furniture standards

ANSI/BIFMA X5.1 office chairs	Use back, seat, arm, base, caster and stability tests for commercial task-chair acceptance

STANDARD S3

Standards Applicable to China-Market Projects * GB Standards

Standards applicable to China-market projects

GB/T 10357.3 furniture mechanical test	Apply back and seat strength/durability test methods to office-chair procurement verification
GB/T 3324 general technical requirements	Use wooden furniture general requirements where molded seat boards or wood components are supplied
GB 17927 upholstered furniture safety	Use as the safety acceptance reference for the upholstered seat and back cushion
GB 18584 indoor furnishing material limits	Require formaldehyde and heavy-metal release limits for any wood-based furniture components

Standardized tender description text

This product must meet the following technical requirements:
1. GB/T 10357.3 furniture mechanical test: Apply back and seat strength/durability test methods to office-chair procurement verification;
2. GB/T 3324 general technical requirements: Use wooden furniture general requirements where molded seat boards or wood components are supplied;
3. GB 17927 upholstered furniture safety: Use as the safety acceptance reference for the upholstered seat and back cushion;
4. GB 18584 indoor furnishing material limits: Require formaldehyde and heavy-metal release limits for any wood-based furniture components;
Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.

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Product Description

The Black High-Back Mesh Ergonomic Office Chair with Headrest, model U-EMH-650-BK, offers a practical seating solution for professional work settings. Presented in black without a branded label, its tall mesh profile, integrated headrest, padded seat and five-star base create a structured appearance suited to standard office interiors. The chair’s visual form is defined by a high black woven polyester mesh back and matching headrest tensioned within molded polymer frames. Its overall dimensions are 650 by 650 by 1260 mm, with a 680 mm back support height coverage and a 240 mm lumbar support zone. The seat uses fabric-upholstered, high-resilience foam over a molded plywood or polymer seat pan. The finished cushion is 90 mm thick and uses 45 kg per cubic meter foam, while backrest padding thickness is 70 mm. Black molded polymer T-arms provide a clear width of 540 mm between armrests and use padded or polymer contact surfaces. A black glass-filled nylon five-star base, black twin-wheel casters with steel fork axles, and a chromed steel gas lift with a black outer shroud complete the construction. Functional adjustment supports a range of seated tasks. A right-side lever controls pneumatic seat height through a 100 mm stroke using the 50 mm gas lift, giving a seat height range suitable for 760 mm office surfaces. The chair rotates 360 degrees around the central gas-lift axis. Its center-rate tilt mechanism reclines to 15 degrees and includes tension control and lockout. The headrest adjusts 80 mm in height and tilts through 20 degrees, helping support the head and neck during reclined or upright working postures. The chair is rated for a recommended user weight capacity of 136 kg and is intended for users from 160 to 190 cm tall. This model is appropriate for individual workstations and computer desks, as well as private offices, hot desks, administrative zones and other shared workspaces where head, lumbar and arm support are required. Its neutral black finish also allows coordinated use in residential study areas or home offices. Procurement planning should account for delivery as one set packed in two cartons, with a packaged gross weight of 23 kg per set and reference carton dimensions of 850 by 420 by 720 mm. The reference carton volume is 0.26 cubic meters per set, and reference assembly time is 40 minutes. At 85 percent space utilization, the indicative 20GP loading is 135 sets. Buyers should also review the fixed armrest layout, adjustment features and user fit range against the intended workspace and occupant requirements before specification.

Black High-Back Mesh Ergonomic Office Chair with Headrest Specifications

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