What is the working resistance range?

The working resistance options are 150kN, 200kN, 250kN, and 300kN.

What is the lead time for production?

Peak season lead time is one month, while off-season lead time is within 15 workdays.

Can the prop be used with water instead of emulsion?

Yes, the prop can alternate emulsion with water as the working medium.

DN Single Hydraulic Prop for Underground Mining Supporting Equipment

Name: DN Single Hydraulic Prop for Underground Mining Supporting Equipment
Brand: Rizhao Junrui Trading Co., Ltd
SKU: 2159365245

Shandong, ChinaRizhao Junrui Trading Co., Ltd

US$200.00

1 Piece

Sample price:US$100.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

Our Team Is Dedicated to Addressing Customer Queri

Warranty

12 Months

Model NO.

DN series

Certification

CE, ISO 9001:2000

Surface Treatment

Galvanized

Material

Alloy Steel

Max Height

3500 mm

Min Height

2700mm

Working Stroke

800 mm

Working Resistance

150kN; 200kN; 250kN; 300kN

The First Sustaining Load

118--157kN

Pump Station Pressure

15 to 20 MPa

Column Lifting Speed

>=60mm/S

Diameter of Oil Cylinder

100mm

Working Liquid

Coal 10 M10 Emulsifier or Mdt10 Emulsifier 2% Emul

Transport Package

Carton Box, Plastic Bags, Wooden Cases

Specification

Trademark

Origin

China

HS Code

8412210090

Production Capacity

1000 Boxes Per Month

Key features

Weld-Free Construction: Avoids arc weld to prevent leakage and strength reduction, ensuring higher reliability.

Seal Compensation Technology: External sealed points allow direct observation and timely replacement to prevent hazards.

Enhanced Safety Design: Three-use valve design reduces operator danger and improves stability coefficient to 5.

Low Maintenance Cost: Low damage rate reduces spare parts demand and reserve quantity compared to DZ pillars.

Flexible Working Medium: Can alternate emulsion with water as working medium to save costs.

Wide Seam Applicability: Suitable for both thin coal seam and thick seam mining operations.

Rigorous Quality Control: All products undergo 3 QC checks before delivery by skilled engineers.

CE and ISO Certified: Certified with CE and ISO 9001:2000 standards for quality assurance.

Company profile

Rizhao Junrui Trading Co., Ltd

Shandong, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2024-02-19Nearest Port: Qingdao, ShanghaiAverage Response Time: ≤4.73hTerms 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.