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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)	640 × 620 × 1110 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	14 kg
Maximum static user weight capacity	120 kg
Seat foam density	45 kg/m³
Back foam density	38 kg/m³
Foam rebound rate	55%
Caster rolling durability cycles	40000
Seat surface static load rating	136 kg
Maximum recommended static user weight capacity	120 kg
Seat high-resilience foam density	45 kg/m³
Back and lumbar foam density	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.

Seat cushion core	High-resilience molded polyurethane foam
Back cushion core	Medium-density molded polyurethane foam
Upholstery fabric	100% polyester woven mesh fabric, 0.8mm thick
Structural back frame	Glass-fiber reinforced white polypropylene, 5mm wall thickness
Armrest structure	Injection-molded white polypropylene with padded TPU top surface
Height adjustment gas lift	Chrome-plated steel Class 3 gas cylinder, 50mm diameter
Tilt mechanism chassis	2.5mm thick stamped steel with black powder coat finish
Five-star base	Glass-fiber reinforced white nylon, 4mm wall thickness
Casters	Dual-wheel polyurethane casters with black nylon bracket
Seat support pan	1.2mm thick molded plywood under seat cushion
Dual upper back cushion cores	Molded medium-density polyurethane foam, 40mm thick
Lumbar support cushion core	Molded medium-density polyurethane foam, 35mm thick

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 Class 3 gas lift, operated by right-side lever
360-degree swivel	Full rotation around central gas lift axis for flexible workspace access
Back tilt function	12-degree backward tilt with tension adjustment, lockable in upright position
Dual-panel back support	Two independent upper back panels flex to conform to spinal curvature
Fixed armrest support	Non-adjustable padded armrests positioned to support forearm at typing height
Smooth mobility	Five dual-wheel casters enable low-effort movement across hard floor surfaces
Dual-panel back flex	Two independent upper back panels flex 5 degrees outward to conform to spinal curvature
Lumbar support	Fixed contoured lumbar cushion applies even pressure to the 3rd-5th lumbar vertebrae
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-plan office workstations	Suitable for 8-hour daily desk work for general office staff
Home office study spaces	Compact 640mm footprint fits small home desks without excessive space use
Meeting and conference rooms	Unobtrusive design works for short to medium duration meeting seating
Start-up co-working spaces	Durable construction withstands frequent use by rotating members
Training room seating	Lightweight frame and smooth mobility support quick room reconfiguration for training sessions
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

Office furniture safety strength	EN 1335:2018
Office furniture dimensional stability	EN 1335:2020
Office chair caster performance	EN 12529:1998
Office furniture safety, strength and durability	EN 1335:2018
Office chair ergonomic dimensional requirements	EN 1335:2018
Office furniture VOC emission limits	EN 16516

STANDARD S2

North America Purchasing & Inspection Reference * ANSI/BIFMA Standards

US and Canada office-furniture standards

General purpose office chair standard	ANSI/BIFMA X2017
General purpose office chair performance standard	ANSI/BIFMA X2017

STANDARD S3

Standards Applicable to China-Market Projects * GB Standards

Standards applicable to China-market projects

Office chair structural strength	GB/T 10357.3
Office chair safety requirement	GB 28007
Upholstered furniture formaldehyde limit	GB 18584
Office chair structural strength testing	GB/T 10357.3
General office chair safety requirements	GB 28007
Upholstered furniture formaldehyde emission limit	GB 18584

Standardized tender description text

This product must meet the following technical requirements:
1. Office chair structural strength: GB/T 10357.3;
2. Office chair safety requirement: GB 28007;
3. Upholstered furniture formaldehyde limit: GB 18584;
4. Office chair structural strength testing: GB/T 10357.3;
5. General office chair safety requirements: GB 28007;
6. Upholstered furniture formaldehyde emission limit: GB 18584;
Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.

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Product Description

The Dual-Back Ergonomic Swivel Office Chair with Height Adjustment (model OFC-DB-GR-001) is an unbranded ergonomic office task chair designed for balanced support and versatile workspace use, with a clean, contemporary visual profile defined by light grey upholstered seating surfaces paired with crisp white structural components. Its layout features a split dual-panel backrest positioned over a contoured padded seat, with fixed padded armrests spaced to leave clear access to desk surfaces, mounted atop a smooth five-star caster base for a streamlined, unobtrusive presence in professional and personal work settings. Built for consistent long-term use, the chair combines targeted material selection across every structural and contact point. The seat uses a 90mm thick high-resilience molded polyurethane foam core with 45 kg/m³ density, wrapped in 0.8mm thick 100% polyester woven mesh fabric, while the 70mm thick backrest uses medium-density molded polyurethane foam with 38 kg/m³ density and matching mesh upholstery. The structural back frame is constructed from 5mm thick glass-fiber reinforced white polypropylene, armrests feature injection-molded white polypropylene bases with soft padded TPU tops, and height adjustment is delivered via a 50mm diameter chrome-plated Class 3 steel gas cylinder. The tilt chassis is made from 2.5mm thick black powder-coated stamped steel, the five-star base uses 4mm thick glass-fiber reinforced white nylon, and dual-wheel polyurethane casters with black nylon brackets support smooth movement. All foam components deliver a 55% rebound rate for consistent comfort over extended seating periods. Functional features are tailored to dynamic work needs: the right-side lever controls 100mm of vertical seat height adjustment, the chair enables full 360-degree swivel for easy access to surrounding workspace areas, and the backrest offers 12 degrees of lockable backward tilt with adjustable tension to suit user preference. The independent dual back panels flex 5 degrees outward to conform to natural spinal curvature, delivering targeted support across the 240mm tall lumbar zone, while fixed armrests are positioned to support forearms at standard typing height. The casters are rated for 40000 rolling durability cycles, the chair supports a maximum static user weight of 120 kg with a 136 kg seat surface static load rating, and the unit weighs 14 kg net for easy repositioning. This chair is suited for a broad range of settings: it supports 8-hour daily desk work for general staff in open-plan office workstations, its 640mm wide footprint fits compact home office study spaces without crowding small desks, its understated design works for short to medium duration seating in meeting and conference rooms, its robust build withstands frequent rotating use in start-up co-working spaces, and its lightweight frame and smooth casters enable quick room reconfiguration for training room layouts. It pairs ideally with 2.4m executive desks for coordinated workspace setups. For procurement planning, note that each unit ships as one set across two cartons, with a packaged gross weight of 23 kg per set and total carton volume of 0.26 m³.

Dual-Back Ergonomic Swivel Office Chair with Height Adjustment Specifications

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