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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)	620 × 650 × 1130 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 weight	18 kg
Recommended user weight	136 kg
Static base proof-load target	680 kg
Seat impact durability target	100,000 cycles
Caster rolling durability target	100,000 cycles
Gas-lift downward load target	204 kg
Backrest cyclic strength target	120,000 cycles
Arm vertical static load target	45 kg per arm
Seat foam density	45 kg/m3
Foam rebound resilience	40%

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 upholstery	Black ribbed upholstery with horizontal stitched/formed channels; textile or leather type requires supplier BOM confirmation
Back upholstery	Black continuous ribbed facing over a contoured high-back carrier; 12 horizontal ribs visible
Seat cushion	80 mm polyurethane foam pad wrapped under the black upholstery
Back cushioning	10 mm polyurethane comfort layer over a rigid curved back carrier
Internal seat shell	12 mm molded plywood or reinforced polymer seat board
Back support frame	2.0 mm curved steel or reinforced polymer spine behind the upholstered panel
Arm pads	Black padded or upholstered top surfaces on polished aluminum loop supports
Arm supports	Polished cast or extruded aluminum fixed arm loops with side mounting brackets
Gas lift	Chrome-plated steel telescopic gas lift with 50 mm outer tube
Base	Polished aluminum five-star base with tubular curved legs
Casters	Black nylon or polyurethane twin-wheel swivel casters, five supplied
Mechanism	Black steel tilt mechanism and seat plate beneath the cushion

PRODUCT MODULE 04 / 06

Functions & Adjustment

Adjustment / rotation / tilt / mobility / storage features

Data source: Functional configuration; the supplier specification prevails.

Seat-height adjustment	Pneumatic gas lift operated by the under-seat lever with a 100 mm total lift travel
360-degree swivel	Central gas-lift bearing allows full 360-degree seat and back rotation
Back recline	Synchronized tilt mechanism allows up to 15-degree rearward recline
Tilt lock	Locking control secures the back at the upright position or within five tilt increments
Tilt tension control	Rotating knob under the seat adjusts resistance for users up to 136 kg
Fixed arm support	Polished loop arms provide fixed upper-body support at 230 mm above the seat
Mobile movement	Five 60 mm twin-wheel casters provide rolling movement on hard floors and low-pile carpet
Recline posture support	Tall ribbed back supports thoracic and shoulder regions during task and reclined positions
Forward task posture	500 mm seat height and 470 mm seat depth support standard desk work at 760 mm desks
Floor transition	Twin-wheel design spreads load and reduces point pressure during short-distance movement
Recline Angle / Lock Reference	125° with 3suggested lock positions
Tilt Tension User-weight Range	Reference adjustment coverage 120 kg

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.

Executive office	Suitable for managers and directors because the high back, fixed arms, and polished base provide formal meeting-room appearance
Open-plan workstation	Fits standard 760 mm desks for daily computer and document work
Conference room	Can be used around meeting tables where swivel access and mobility are needed without broad arm adjustment
Home office	Suitable for users wanting a slim ribbed executive look in a dedicated study
Reception meeting area	Pairs with desks or visitor tables in professional reception and consulting spaces
Hard-floor and carpeted spaces	Twin casters are intended for short movement on office hard floors or low-pile carpet
Single-shift professional use	Recommended for users up to 136 kg in standard commercial single-shift seating
Recommended Matching Desk Size	2.4 m executive desk

STANDARD S1

EU Market Entry Requirements * EN Standards

EU Market Access Requirements* EN Standards

EN 1335-1 office furniture seating dimensions	Applies to dimensional suitability and seated clearance checks
EN 1335-2 office seating safety requirements	Applies to structural safety, stability, and mechanism integrity verification
EN 1335-3 office seating test methods	Applies to strength, durability, and caster test procedures
EN 1022 seating stability	Applies to forward, rearward, and lateral tipping tests

STANDARD S2

North America Purchasing & Inspection Reference * ANSI/BIFMA Standards

US and Canada office-furniture standards

ANSI/BIFMA X5.1 office chairs general purpose	Applies to static, dynamic, impact, fatigue, and dimensional acceptance tests
ANSI/BIFMA X5.4 lounge and executive seating	Applies if this chair is classified as executive rather than general task seating

STANDARD S3

Standards Applicable to China-Market Projects * GB Standards

Standards applicable to China-market projects

GB/T 10357.2 furniture mechanical stability	Applicable standards and test results require confirmation
GB/T 10357.3 furniture strength and durability	Applicable standards and test results require confirmation
GB/T 28001 ergonomic office chair guidance	Applies to dimensional and adjustment review for seated office work
GB 17927 upholstered furniture safety	Applies if the supplied upholstery and foam require domestic fire-safety verification

Standardized tender description text

This product must meet the following technical requirements:
1. GB/T 10357.2 furniture mechanical stability: Applicable standards and test results require confirmation;
2. GB/T 10357.3 furniture strength and durability: Applicable standards and test results require confirmation;
3. GB/T 28001 ergonomic office chair guidance: Applies to dimensional and adjustment review for seated office work;
4. GB 17927 upholstered furniture safety: Applies if the supplied upholstery and foam require domestic fire-safety verification;
Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.

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Product Description

The Ribbed High-Back Swivel Office Chair combines an executive silhouette with functional mobility for professional and residential workspaces. Its tall, contoured back presents a continuous black ribbed facing with twelve visible horizontal ribs, while the padded seat carries matching black upholstery with horizontal stitched or formed channels. Polished aluminum loop arms and a five-star base create a refined contrast with the black shell, giving the chair a formal yet streamlined appearance. The seating structure layers an 80 mm polyurethane foam cushion beneath the upholstery, supported by an internal molded plywood or reinforced polymer seat board. The back uses a 10 mm polyurethane comfort layer over a rigid curved carrier, with a curved steel or reinforced polymer spine behind the upholstered panel. Fixed arm supports are made from polished cast or extruded aluminum with side mounting brackets and black padded or upholstered top surfaces. A chrome-plated steel telescopic gas lift, steel mechanism, polished five-star base, and black twin-wheel casters complete the construction. The finished seat cushion is 90 mm thick, backrest padding is 70 mm thick, the lumbar support zone is 240 mm high, and the clear width between armrests is 540 mm. Designed for daily desk use, the chair offers pneumatic seat-height adjustment through an under-seat lever with 100 mm of lift travel, full 360-degree swivel, and synchronized tilt movement. The back can recline up to 15 degrees, and the tilt lock secures it upright or within five tilt increments. A rotating knob beneath the seat adjusts tilt resistance for users up to 136 kg. Fixed armrests provide consistent upper-body support, while five 60 mm twin-wheel casters enable short-distance movement on hard floors and low-pile carpet. The high back, polished base, and tailored ribbing make it suitable for executive offices, manager workstations, meeting rooms, reception and consulting areas, and dedicated home studies. It fits standard office desks and works well where swivel access and mobility are needed without adjustable arms. Procurement planning should note that the chair is unbranded under model OCH-RIB-HB-ALU-50B, and whether the upholstery is textile or leather requires supplier bill-of-materials confirmation. Each set ships in two cartons with a packaged gross weight of 23 kg, reference assembly time of 40 minutes, and carton volume of 0.26 cubic meters. A 20GP container can accommodate 135 sets at 85 percent space utilization. Buyers should also verify floor surface suitability, assembly resources, finish expectations, and upholstery specification before ordering.

Ribbed High-Back Swivel Office Chair Specifications

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