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Underground Coal Mining Longwall Face Coal Mining Roof Support Cylinder
US$200.00-1,000.00
1 Piece
Sample price:US$2000.00/piece.Request sample
Product profile
Customization
AvailableCertification
GS, CE, ISO9001Pressure
Medium PressureModel NO.
yuxiaowen02Work Temperature
Normal TemperatureActing Way
Single ActingWorking Method
Straight TripAdjusted Form
Regulated TypeStructure
Piston TypeMaterial
Alloy SteelTechnology
Parker, Custom Hoist, Hyco, Hyva, MeillerTemperature Range
-50 to +100Raw Material
Carbon Steel, Alloy Steel, 27simn, 45#, 20#, etcMounting Style
FC, Fe, Fee, Fse, Tpin, Pin-Eye, Trunnion MountBase End Mount Type
Cross-TubeCylinder Function
Dump Hoist, Body Raise, TippingOEM/ODM
YesSurface Treatment
Hard Chrome, Zinc,CopperHoned Tube
Heat Treatment, Honing, RollingStage
Multi Section Telescopic Hydraulic CylinderActing Type
Single Action Hydraulic CylinderTransport Package
Pallet, Wooden Case or as Your RequirementSpecification
430 lbsTrademark
JROrigin
ChinaHS Code
8412210090Production Capacity
200000Key features
Customized Technology Options: Supports Parker, Custom Hoist, Hyco, Hyva, and Meiller technologies.
Wide Temperature Range: Operates effectively from -50 to +100 degrees Celsius.
Multiple Mounting Styles: Available in FC, Fe, Fee, Fse, Tpin, Pin-Eye, and Trunnion Mount.
OEM/ODM Services: Full OEM and ODM customization capabilities available.
High-Quality Materials: Constructed from Alloy Steel, Carbon Steel, 27simn, 45#, and 20#.
Advanced Surface Treatment: Features Hard Chrome, Zinc, and Copper plating options.
Multi-Stage Telescopic Design: Available in 2-6 stages with bore sizes from 90mm to 220mm.
Rigorous Quality Control: Every product undergoes 3 QC inspections before delivery.
Company profile

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2024-02-19Nearest Port: Qingdao, ShanghaiAverage Response Time: ≤5.20hTerms 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.
Product Q&A
Q:Are you a trading company or a manufacturer?
A:
We have our own factory.
Q:Are you able to make Non-standard or customized products?
A:
Yes, we can.
Q:How long is your delivery time?
A:
Normally, the delivery time is 7 days if we have stock, 15-30 working days if we don't. but it also depends on the product requirements and quantity.
Q:Do you provide samples? are the samples free or not?
A:
Yes, we can provide samples.
Q:What are your payment terms?
A:
30% deposit T/T or Irrevocable L/C at sight, If you have any questions, please feel free to contact us.
Send Inquiry
*To:
Rizhao Junrui Trading Co., Ltd
Rizhao Junrui Trading Co., Ltd*Content:
Supplier replies will be sent to your registered email
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