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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)	680 × 640 × 1205 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	150 kg
Net weight	21 kg
Seat-foam density	45 kg/m3
Back-foam density	35 kg/m3
Seat-foam thickness	80 mm
Back padding thickness	40 mm
Foam rebound performance	45%
Gas-lift stroke	55 mm
Tilt-mechanism static verification load	450 kg
Warranty period	36 months

PRODUCT MODULE 03 / 06

Materials & Structure

Core acceptance fields · Panels / hardware / frame / upholstery

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

Seat and back upholstery	Burgundy leather-look surface over a contoured padded shell; material grade requires supplier BOM confirmation.
Rear back shell	Black molded rear shell with a smooth curved profile supporting the upholstered front.
Five-star base	Polished silver aluminum-alloy five-prong swivel base with reinforced spoke section.
Center column and gas lift	Black steel outer column enclosing a class-4 gas lift with 50 mm nominal tube diameter.
Tilt mechanism	Black steel multi-lever synchro-tilt plate under the seat, with an 3 mm plate thickness.
Arm construction	Black padded arm pads on black vertical supports with polished silver side brackets.

PRODUCT MODULE 04 / 06

Functions & Adjustment

Adjustment / rotation / tilt / mobility / storage features

Data source: Functional configuration; the supplier specification prevails.

Pneumatic height adjustment	Side lever operates the gas lift through a 55 mm stroke, setting seat height from 430 to 485 mm.
Recline and tilt-lock control	Multi-lever under-seat mechanism supports 105-degree recline and three selectable lock positions.
360-degree swivel seating	Gas-lift turret and five-star base allow full 360-degree seat rotation without moving the base.
Independent tension adjustment	Rear under-seat paddle changes tilt resistance for user weight and recline preference.

PRODUCT MODULE 05 / 06

Packaging & Logistics

Verified carton / gross weight / assembly / loading data

Data source: Reference for export quotations and container planning.

Gross weight per carton	24 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

PRODUCT MODULE 06 / 06

Applications & Usage

Recommended spaces / users / usage modes

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

Executive and private offices	Suits managers and professionals using a 760 mm desk because the 485 mm seat height supports standard desk posture.
Meeting rooms and reception workstations	Fits formal conference or reception settings where swivel access, padded arm support and a polished appearance are required.

STANDARD S1

EU Market Entry Requirements * EN Standards

EU Market Access Requirements* EN Standards

Office furniture structural safety	EN 16139:2013+A1:2022
Upholstered furniture flammability	EN 1021:2014 and EN 1021:2014
Office-chair wheel friction	EN 12529:1999
Surface human-contact chemical safety	EN 17191:2021
Non-domestic seating safety	EN 16139:2013+A1:2022
Upholstered seating ignitability	EN 1021:2014 and EN 1021:2014

STANDARD S2

North America Purchasing & Inspection Reference * ANSI/BIFMA Standards

US and Canada office-furniture standards

Office chair durability and safety	ANSI/BIFMA X2017(R2022)
Low-chemical office furniture	ANSI/BIFMA e2019e
Sustainable furniture assessment	ANSI/BIFMA e2019e

STANDARD S3

Standards Applicable to China-Market Projects * GB Standards

Standards applicable to China-market projects

Office-chair safety applicability	GB/T 28004
Furniture upholstery formaldehyde control	GB 18580
Furniture panel formaldehyde control	GB 18580
Upholstery leather limit	GB 20400

Standardized tender description text

This product must meet the following technical requirements:
1. Office-chair safety applicability: GB/T 28004;
2. Furniture upholstery formaldehyde control: GB 18580;
3. Furniture panel formaldehyde control: GB 18580;
4. Upholstery leather limit: GB 20400;
Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.

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Product Description

This high-back executive office chair presents a formal seating profile with a burgundy leather-look seat and back, a black molded rear shell, padded black arm pads, and a polished silver aluminum-alloy five-star base. The contoured backrest includes an integrated headrest and a defined lumbar support zone, giving the chair a structured executive appearance suited to private offices and representative business settings. Its black steel center column, multi-lever mechanism, polished side arm brackets, and black twin-wheel casters combine dark functional components with a reflective metal base. The clear width between the armrests is 540 mm, while the finished seat cushion is 90 mm thick and the backrest padding is 70 mm thick. Seat foam is specified at 45 kg/m3 and back foam at 35 kg/m3, supporting the padded, layered build of the upholstered shell. The chair has a recommended user weight capacity of 150 kg and a net weight of 21 kg. The base uses a five-prong swivel design with reinforced spoke sections, and the black steel outer column encloses a class-4 gas lift with a 50 mm nominal tube diameter. Under the seat, a black steel synchro-tilt plate with multi-lever controls manages movement. Practical adjustment is centered on the under-seat controls. A side lever operates pneumatic height adjustment through a 55 mm stroke, setting seat height from 430 to 485 mm. The reclining mechanism supports a 105-degree recline and three selectable lock positions, while a separate rear paddle adjusts tilt tension to suit user weight and recline preference. The gas-lift turret and five-star base also enable full 360-degree swivel movement without repositioning the base. Twin-wheel casters add mobility across typical office floor arrangements. The model is appropriate for executive and private offices, especially for managers and professionals using a 760 mm desk, where the 485 mm maximum seat height supports standard desk posture. It also fits meeting rooms, conference areas, and reception workstations that call for padded arm support, swivel access, and a polished formal look. For procurement, buyers should note the unbranded model number EOCH-PU-640-ALB and confirm the precise upholstery material grade through the supplier bill of materials, because the supplied record describes a leather-look surface rather than a confirmed leather grade. Each set is supplied in two cartons, with reference assembly time of 40 minutes, packaged gross weight of 23 kg per set, and carton volume of 0.26 m3 per set. These logistics should be reviewed alongside delivery access, assembly allocation, replacement parts availability, and whether the color and finish complement existing desks, storage, and reception furniture.

High-Back Leather Executive Office Chair with Integrated Headrest and Reclining Mechanism Specifications

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