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Underground Colliery Longwall Hydraulic Roof Support Cylinders

Name: Underground Colliery Longwall Hydraulic Roof Support Cylinders
Brand: Rizhao Junrui Trading Co., Ltd
SKU: 2138797505

Shandong, ChinaRizhao Junrui Trading Co., Ltd

US$200.00-5,000.00

1 Piece

Sample price:US$500.00/piece.Request sample

Product profile

Customization

Available

Certification

GS, CE, ISO9001

Pressure

Medium Pressure

Model NO.

custom

Work Temperature

Normal Temperature

Acting Way

Single Acting

Working Method

Straight Trip

Adjusted Form

Regulated Type

Structure

Piston Type

Material

Alloy Steel

Technology

Parker, Custom Hoist, Hyco, Hyva, Meiller

Temperature Range

-50 to +100

Raw Material

Carbon Steel, Alloy Steel, 27simn, 45#, 20#, etc

Mounting Style

FC, Fe, Fee, Fse, Tpin, Pin-Eye, Trunnion Mount

Base End Mount Type

Cross-Tube

Cylinder Function

Dump Hoist, Body Raise, Tipping

OEM/ODM

Yes

Surface Treatment

Hard Chrome, Zinc,Copper

Honed Tube

Heat Treatment, Honing, Rolling

Stage

Multi Section Telescopic Hydraulic Cylinder

Acting Type

Single Action Hydraulic Cylinder

Transport Package

Pallet, Wooden Case or as Your Requirement

Specification

430 lbs

Trademark

Origin

China

HS Code

8412210090

Production Capacity

200000

Key features

Wide Bore Size Range: Bore size available from 90mm to 220mm for versatile applications.

High Pressure Capacity: Maximum working pressure up to 210 bar (3000 PSI) for heavy duty use.

Customizable Mounting Styles: Offers CC, DC, DB and other mounting options to fit specific needs.

Premium Seal Kits: Compatible with Hallite, NOK, Parker, Trelleborg, and other top brands.

Multi-Stage Design: Available in 2 to 6 stages with stroke up to 12000mm.

OEM/ODM Services: Full customization available for technology, materials, and surface treatment.

Rigorous Quality Control: Every product undergoes 3 QC inspections before delivery.

Advanced Manufacturing: Equipped with CNC boring, laser cutting, and robot welding stations.

Company profile

Rizhao Junrui Trading Co., Ltd

Shandong, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2024-02-19Nearest Port: Qingdao, ShanghaiAverage Response Time: ≤2.59hTerms of Payment: LC, T/T, D/P, etc.International Commercial Terms(Incoterms): FOB, EXW, CFR, CIF, DAT, FAS, DDP, DAP, CIP, CPT, Others, FCA

AI-Powered supplier vetting

SummaryRizhao Junrui Trading Co., Ltd is identified as both a trading company and manufacturer/factory in China, offering hydraulic cylinders, pumps, power units, and related components. The supplier reports multiple dedicated hydraulic, tank, pipe, cold-processing, and stamping production lines, plus more than 600 employees in one company description; however, another slice states only three total employees, creating a material inconsistency. It provides OEM and extensive customization services and generates 71%–90% of sales from exports, with six years of export experience and self-operated import/export rights. Innovation evidence is limited: no SDK is available, only one R&D engineer is reported, and R&D audit documentation is unavailable. No overseas showrooms, agents, branches, or offline trade-show participation are reported. Financial data only identifies years, not financial performance, so credibility cannot be assessed. No customer cases or certifications are provided.

Supplier typeThe supplier is described as both a trading company and manufacturer/factory, while its company type is also listed as a trading company. Its stated business scope covers hydraulic cylinders, mine columns, jacks, hydraulic components, systems, pump stations, and related metal and plastic products. This indicates a mixed trading-and-manufacturing profile, although the records are not fully consistent.

R&D capabilityThe supplier describes hydraulic R&D and an engineering team providing technical support, but reports no available SDK, only one R&D engineer, and no R&D audit documentation covering design inputs, outputs, reviews, verification, or validation. These records show some technical capability but do not establish strong innovation systems.

Production capacityThe supplier reports four high-pressure hydraulic-cylinder lines, two coal-machine cylinder lines, one telescopic-cylinder line, one high-pressure oil-pipe line, two construction-machinery tank lines, four agricultural-machinery tank cold-processing lines, and an advanced stamping workshop. It also states that it has multiple hydraulic and power-unit workshops, but the reported employee count conflicts sharply between more than 600 and three; production scale is therefore supported by claimed facilities but not fully consistent across records.

Customization capabilityThe supplier explicitly provides OEM services for well-known brands and supports customization from samples, designs, full customization, minor customization, and flexible customization. This is direct evidence of broad customization capability.