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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)	660 × 660 × 1020 mm
Seat width	470 mm
Seat depth	470 mm
Maximum seat height from floor	580 mm
Minimum seat height from floor	460 mm
Fixed armrest height from floor at lowest seat position	760 mm
Backrest total height	440 mm
Five-star base outer diameter	620 mm
Caster diameter	60 mm
Cushion padding thickness	110 mm
Lower lumbar back pad thickness	90 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	125 kg
Five-star base static load rating	1136 kg
Net weight (product only)	20 kg
Gas lift durability rating	200000 lift cycles
Seat foam density	40 kg/m³
Foam rebound rate	60%
Upholstery abrasion resistance	30000 Martindale cycles
Net product weight	20 kg
Tilt mechanism fatigue life	100000 recline cycles
Seat Foam Density / Rebound Reference	45 kg/m³ / 65%

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	Black breathable woven mesh/fabric
Seat cushion core	40D high-density polyurethane foam
Back support frame	Fiberglass-reinforced PP/nylon
Fixed armrests	Rigid PP with flat hard top surface
Central gas lift cylinder	Chrome-plated steel, Class 3 rated
Five-star base	Black reinforced nylon composite
Rolling casters	Black PA dual-wheel hard floor casters
Tilt mechanism plate	2.5mm thick stamped steel with black powder coat
Upholstery seam stitch pitch	8 stitches per inch
Back support internal frame	Fiberglass-reinforced PP/nylon composite
Fixed T-style armrests	Injection-molded rigid PP with flat hard top surface
Upholstery seam construction	Bonded polyester thread with 8 stitches per inch

PRODUCT MODULE 04 / 06

Functions & Adjustment

Adjustment / rotation / tilt / mobility / storage features

Data source: Functional configuration; the supplier specification prevails.

360-degree swivel rotation	Full rotation around central gas lift axis
Pneumatic seat height adjustment	120mm vertical travel via side lever
Spring-loaded tilt function	12-degree rearward recline with upright position lock
Split dual upper back support	Two separate padded panels to distribute upper back pressure
Integrated lower lumbar support	Contoured fixed pad aligned to lower back curve
Fixed height armrests	Static non-adjustable support positioned for standard desk height
Dual-wheel caster mobility	Smooth rolling on hard and low-pile carpet office floors
Integrated fixed lumbar support	Contoured lower pad aligned to natural lumbar curve
Tilt tension adjustment	User-adjustable spring tension to match user body weight
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.

Home office workstations	Fits standard 750mm height desks for daily remote work and computer use
Open plan office cubicles	Compact footprint suitable for high-density task seating arrangements
Small meeting rooms	Rolling swivel design supports quick repositioning for collaborative discussion
Student study desks	Mid-back support suitable for extended seated study and homework sessions
Reception and admin areas	Consistent black finish matches neutral commercial office decor schemes
Co-working hot desks	Adjustable height range accommodates diverse user body sizes for shared use
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	Applies to office work chair dimensional and safety requirement verification for European markets
EN 1335-2:2018	Applies to mechanical safety, strength and durability testing for office task chairs
EN 1335-3:2009	Applies to stability test methods for caster-based office seating

STANDARD S2

North America Purchasing & Inspection Reference * ANSI/BIFMA Standards

US and Canada office-furniture standards

ANSI/BIFMA X5.1-2017	Applies to general-purpose office chair safety, durability and performance requirements
Caster rolling durability	100000 cycles

STANDARD S3

Standards Applicable to China-Market Projects * GB Standards

Standards applicable to China-market projects

GB/T 3326-2016	Applies to office chair dimension measurement and tolerance verification for procurement inspection
GB/T 10357.3-2013	Applies to mechanical strength and durability testing for office seating stability
GB 28007-2011	Applies to upholstered furniture formaldehyde emission limits for indoor use

Standardized tender description text

This product must meet the following technical requirements:
1. GB/T 3326-2016: Applies to office chair dimension measurement and tolerance verification for procurement inspection;
2. GB/T 10357.3-2013: Applies to mechanical strength and durability testing for office seating stability;
3. GB 28007-2011: Applies to upholstered furniture formaldehyde emission limits for indoor use;
Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.

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Product Description

The Black Split-Back Ergonomic Office Task Chair (model TASK-SB-FA-001, unbranded) is a streamlined, no-headrest mid-back task seating solution designed for flexible use across commercial and residential work spaces. Its understated all-black profile creates a clean, cohesive visual that integrates seamlessly with neutral decor palettes, while its compact footprint supports efficient layout planning in shared environments. Constructed for long-term regular use, the chair pairs black breathable woven mesh and fabric upholstery with a fiberglass-reinforced PP/nylon back support frame. Its seat cushion uses 40D high-density polyurethane foam for consistent support, finished with tight, uniform stitching. The structure is anchored by a black reinforced nylon five-star base fitted with black PA dual-wheel hard floor casters, connected via a chrome-plated Class 3 rated steel gas lift. A 2.5mm thick powder-coated stamped steel tilt mechanism provides core structural stability, while fixed rigid PP armrests with flat hard top surfaces offer consistent upper limb support aligned to standard desk heights. Functional features are tailored to seated comfort and ease of use: full 360-degree swivel rotation enables easy access to surrounding work surfaces, pneumatic seat height adjustment delivers vertical travel via a convenient side lever, and a spring-loaded tilt function allows 12-degree rearward recline with a lock for upright working positions. The signature split dual upper back support uses two separate padded panels to evenly distribute upper back pressure, paired with an integrated contoured fixed lumbar pad aligned to the natural lower back curve for sustained posture support during long seated sessions. The dual-wheel casters roll smoothly across hard flooring and low-pile carpet common in office settings. This chair is well suited for home office workstations paired with standard height desks for daily remote work, open plan office cubicles where high-density seating arrangements are required, small meeting rooms where quick repositioning supports collaborative discussion, student study desks for extended homework and study sessions, reception and admin areas requiring consistent, decor-friendly seating, and co-working hot desks serving diverse user groups. Procurement teams should note the chair ships in two cartons per set, with a reference assembly time of 40 minutes per unit, and is packaged to support efficient bulk shipping for large fit-out projects. The fixed armrest height and non-adjustable lumbar support should be aligned with intended user needs and existing desk dimensions prior to purchase, and its weight capacity supports use across a broad range of adult users.

Black Split-Back Ergonomic Office Task Chair, No Headrest Specifications

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