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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)	610 × 705 × 1320 mm
Adjustable seat height	500 mm
Back panel height (seat to top of upper back)	1070 mm
Headrest width	225 mm
Total backrest width	450 mm
Seat cushion width	485 mm
Upper back panel height	340 mm
Armrest height above seat	180 mm
Five-star base radius	320 mm
Seat cushion depth	510 mm
Backrest lumbar support height	240 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 chair weight	25 kg
Maximum recommended user weight	136 kg
Five-star base static load rating	1200 kg
Caster rolling durability	100000 cycles
Backrest tilt fatigue cycle rating	120000 cycles
Seat cushion foam density	45 kg/m³
Seat foam rebound rate	45%
Fabric dry rub colorfastness grade	Grade 4
Structural component warranty	3 years
Net assembled chair weight	25 kg

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 light blue polyester mesh
Headrest padding	20mm thick high-density foam wrapped in light blue mesh
Seat cushion core	50mm thick high-density molded polyurethane foam
Seat upholstery	Light grey woven polyester fabric
Armrest construction	White/light grey engineered PP plastic fixed curved frame
Five-star base	PA+GF glass-fiber reinforced nylon, light grey finish
Caster wheels	50mm diameter grey PA nylon dual-wheel casters
Gas lift cylinder	Class 4 steel gas lift with 85mm stroke
Tilt mechanism	2.5mm thick steel plate chassis under seat
Inner seat frame	1.2mm thick steel support frame
Seam stitch pitch	8 stitches per inch
Split backrest upholstery	Breathable light blue polyester mesh, tensioned over PP support frames

PRODUCT MODULE 04 / 06

Functions & Adjustment

Adjustment / rotation / tilt / mobility / storage features

Data source: Functional configuration; the supplier specification prevails.

Height adjustment	Pneumatic seat height adjustment via under-seat lever, 60mm total travel
Backrest tilt	Synchro-tilt function with up to 145° recline and multi-position lock
Swivel function	360° full rotation around central gas lift column
Headrest adjustment	Height and angle adjustable padded headrest for neck support
Mobility	Dual-wheel casters support smooth movement on hard floors and low-pile carpet
Lumbar support	Split dual back panels provide independent dynamic lumbar support
Armrest design	Fixed curved armrests positioned to support forearms at desk height
Tilt tension control	Under-seat adjustment knob modulates recline resistance for user weight
Synchro-tilt backrest recline	Synchronized seat and back tilt, 145° maximum recline with 4-position lock positions
360° swivel function	Full unobstructed rotation around central gas lift column for multi-directional access
Headrest adjustability	Height and angle adjustable padded headrest with 50mm vertical travel, 30° tilt range
Floor mobility	Dual-wheel casters provide smooth rolling on hard floors and low-pile commercial carpet

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.

Private office workspace	Suitable for long-duration seated work at standard 760 mm height office desks
Home office setup	Neutral light blue-grey color scheme fits modern residential workspaces
Open-plan office workstations	Low-profile armrests fit under standard desk surfaces for compact workstation use
Corporate conference room seating	360° swivel and caster mobility support easy movement during collaborative meetings
Coworking space hot desks	Adjustable height and lumbar support accommodate diverse user body types
Private executive office workspace	Suitable for 8+ hour daily seated work at standard 760mm height office desks
Coworking space hot-desk stations	60mm height adjustment and dynamic lumbar support fit 190 cm height users
Administrative staff work areas	Durable fabric upholstery and Class 4 gas lift withstand frequent daily adjustment use

STANDARD S1

EU Market Entry Requirements * EN Standards

EU Market Access Requirements* EN Standards

EN 1335-2:2018	Applicable European standard for safety and performance requirements of office work chairs
EN 1335-3:2018	Applicable European standard for office chair stability and structural test methods

STANDARD S2

North America Purchasing & Inspection Reference * ANSI/BIFMA Standards

US and Canada office-furniture standards

ANSI/BIFMA X5.1-2017	Applicable North American standard for general-purpose office chair safety and durability

STANDARD S3

Standards Applicable to China-Market Projects * GB Standards

Standards applicable to China-market projects

GB/T 22792.1-2009	Office furniture - Office work chair - Part 1: Dimensions
GB/T 22792.2-2009	Office furniture - Office work chair - Part 2: Safety requirements
GB/T 22792.3-2009	Office furniture - Office work chair - Part 3: Test methods

Standardized tender description text

This product must meet the following technical requirements:
1. GB/T 22792.1-2009: Office furniture - Office work chair - Part 1: Dimensions;
2. GB/T 22792.2-2009: Office furniture - Office work chair - Part 2: Safety requirements;
3. GB/T 22792.3-2009: Office furniture - Office work chair - Part 3: Test methods;
Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.

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Product Description

The Split Dual-Back Ergonomic Office Chair with Adjustable Headrest, model EOCH-SB320-LBGR from an unbranded line, features a refined two-tone light blue and light grey palette suited to contemporary work environments. Its visual design centers on distinct split dual back panels paired with a smoothly contoured seat and matching padded headrest, supported by a sleek five-star base for a balanced, professional silhouette that avoids bulk. The chair measures 610 x 705 x 1320 mm overall, with proportional dimensions that align with standard office desk setups without overwhelming surrounding space. Construction prioritizes durability and long-session comfort: the backrest uses breathable light blue polyester mesh to support air circulation, while the 50mm thick, 45 kg/m³ density molded polyurethane foam seat is upholstered in light grey woven polyester fabric with a 45% rebound rate to reduce pressure buildup. The headrest carries 20mm thick high-density foam wrapped in matching light blue mesh. Structural components include a glass-fiber reinforced nylon PA+GF five-star base with light grey finish, Class 4 steel gas lift with 85mm stroke, 2.5mm thick steel plate tilt chassis, fixed curved engineered PP plastic armrests in white and light grey, and 50mm grey PA nylon dual-wheel casters. Key performance ratings include a 136 kg maximum recommended user weight, 1200 kg five-star base static load rating, 100,000-cycle caster rolling durability, and 120,000-cycle backrest tilt fatigue rating, with a net weight of 25 kg. Core functional features include pneumatic seat height adjustment with 60mm total travel for a 500mm adjustable seat height, synchro-tilt backrest recline up to 145° with multi-position lock, 360° swivel, height and angle adjustable headrest for targeted neck support, and independent dynamic lumbar support from the split back panels. Fixed curved armrests sit 180mm above the seat to support forearms at desk height, while dual-wheel casters glide smoothly across hard floors and low-pile carpet. This chair is suited for a wide range of workspaces: private and executive offices supporting 8+ hours of daily seated work at standard 760mm height desks, home offices where its neutral color scheme complements modern residential interiors, open-plan workstations where its low-profile armrests tuck neatly under standard desk surfaces, corporate conference rooms where swivel and caster mobility enable easy collaborative movement, and coworking hot desks where adjustable features accommodate diverse user body types. For procurement, note that each unit ships across 2 cartons with a total packaged gross weight of 23 kg and total carton volume of 0.26 m³, with an 40-minute assembly time per set. A 20GP container can hold 135 sets at 85% space utilization, for large-scale deployment planning.

Split Dual-Back Ergonomic Office Chair with Adjustable Headrest Specifications

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