What is the maximum working pressure of the cylinder?

The working pressure is 31.5MPa.

What is the estimated delivery time for orders?

The estimated time is 20 days. Peak season lead time is within 15 workdays or one month, and off-season lead time is within 15 workdays.

What certifications does the product have?

The product has GS, CE, ISO9001, ISO/Ts 16949 certifications and passed the safety mark certification of the Chinese Academy of Coal Sciences.

Customized Hydraulic Jack Cylinder of Roof Support for Coal Mining Equipment

Name: Customized Hydraulic Jack Cylinder of Roof Support for Coal Mining Equipment
Brand: Shandong Wantong Hydraulic Co., Ltd.
SKU: 717466012

Shandong, ChinaShandong Wantong Hydraulic Co., Ltd.

US$300.00-1,000.00

5 Pieces

Sample price:US$400.00/piece.Request sample

Product profile

Customization

Available

Certification

GS, CE, ISO9001, ISO/Ts 16949

Pressure

31.5MPa

Model NO.

110/85*250

Work Temperature

-30~+80 Degree Centigrade

Acting Way

Single Acting

Working Method

Straight Trip

Adjusted Form

Telescopic Type

Structure

Piston Type

Material

27simn,40cr,30crmnsi

Warranty

14 Months From Production Time

Work Pressure

31.5MPa

Estimated Time

20 Days

Working Temperature

-30 to 80 Degree Centigrade

Transport Package

Plywood Case; Pallet

Specification

110/85*250

Trademark

WTJX

Origin

Shandong China

HS Code

8412210090

Production Capacity

300, 000sets/Year

Key features

Customizable Design: Full customization from samples or designs is available to meet specific client requirements.

High Durability: Features high wear and corrosion resistance with a long service life and low maintenance cost.

Strict Quality Control: 100% inspection including 9 rigorous tests before shipment to ensure reliability.

Certified Safety: Passed safety mark certification of the Chinese Academy of Coal Sciences and holds CE/ISO certifications.

Global Export Experience: Exported to North America, Australia, Asia, Middle East, and Africa with 13 years of experience.

OEM/ODM Service: OEM is available as required, allowing for brand customization and tailored solutions.

Professional Support: 24-hour telephone hotline and comprehensive pre-sale, sale, and after-sale technical support.

Advanced Manufacturing: Equipped with 700 sets of manufacturing equipment including CNC and electroplating lines.

Company profile

Cooperated with Fortune 500Importers and ExportersYears of Export ExperienceExperienced Team

Shandong Wantong Hydraulic Co., Ltd.

Shandong, China

Business Type: Manufacturer/Factory, Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 13 years CertifiedNearest Port: Qingdao PortAverage Response Time: ≤9.37h

AI-Powered supplier vetting

SummaryThe supplier manufactures hydraulic cylinders and hydraulic lifting systems for dump trucks, engineering machinery, and other mechanical equipment. It provides customized design, development, selection, technical training, and after-sales support, with stated ODM and OEM capabilities. Evidence indicates structured quality, supplier-service, inspection, and corrective-action procedures, alongside multiple management and product certifications. Production resources include five production lines, 50 years of combined R&D engineer experience, 11–20 quality-control staff, and stated hydraulic-cylinder output of 300,000 sets. Overseas support is limited: no overseas warehouse, showroom, agent, branch, or offline trade-show participation is reported, although installation, training, repair, maintenance, and debugging services are listed. Financial information is represented only by year labels, so credibility cannot be assessed from the provided data.

Supplier typeThe supplier is a manufacturer of telescopic, engineering-equipment, mechanical-equipment, and hydro-pneumatic suspension cylinders, hydraulic lifting systems, and hydraulic components. Its five production lines and stated hydraulic-cylinder output support classification as a specialized hydraulic equipment manufacturer.

CertificationsThe supplier reports QHSE, OHSAS/OHSMS 18001, TS 16949, and ISO 9001 supplier-management certifications, plus China safety and environmental, occupational health and safety, integrated management, and DCMM Level 2 certifications. Products are stated to have IATF16949 and Coal Mine Safety Mark certifications, with additional ISO45001:2018, ISO14001, and CE-related capability reported.

After-Sales capabilityThe company states that it provides technical training and after-sales service, and lists equipment installation, training, repair, maintenance, and debugging among its overseas service offerings. Service management has written procedures, records, approved-supplier information, and corrective/preventive-action procedures, but no overseas warehouse, showroom, agent, branch, or offline trade-show participation is reported.

R&D capabilityThe supplier reports new products within the past year, ODM capability, broad R&D customization services, and 50 years of combined R&D-engineer experience. However, no SDK is available; this limits evidence for software or platform integration capability but does not negate the demonstrated product-development capability.

Production capacityProduction evidence includes numerical-control machine tools, a Longmen machining center, five production lines, 11–20 quality-control staff, and stated hydraulic-cylinder output of 300,000 sets. The supplier also reports finished-product inspection instructions that are uniformly followed and an off-season average lead time within 15 workdays.

Customization capabilityThe supplier explicitly offers customization from samples, designs, full customization, minor customization, and flexible customization. Its company description also covers customized preliminary design, development, product selection, and design-scheme finalization, indicating broad engineering customization support.

Client casesThe product portfolio is identified for dump trucks, mechanical equipment, engineering machinery, and hydraulic systems, and the supplier states that it provides OEM services for well-known brands. Specific customer names, project references, order histories, or verifiable case studies are not provided.

Product Q&A

Q:What is the brand name of your products?

Generally, we use our own brand 'WTJX', OEM is also available as required.

Q:What causes hydraulic cylinder internal leakage?

There are 3 main reasons causing internal leakage: Overload, polishing is not well controlled, bad seal kits. As is known to all, vehicles in China are often overload, our products all designed to bear the overload power. We have numerical control machine to assure the polish processing. And we use the imported seals to meet customers' demands.

Q:Does your piston rod get broken easily?

Hard chrome plating quenched and tempered 45# steel for piston rod to assure sufficient hardness and toughness.

Q:What about the quality feedback of your products?

Guarantee the quality from the raw material. We have cold drawing production line and nickel-chrome electroplating production line, so we can produce cold-drawing pipe and hard-chrome pipe used for hydraulic cylinder!

Q:What is the warranty period for the hydraulic cylinder?

The warranty is 14 months from production time.