What is the warranty period?

The warranty period is 14 months from the production time.

What materials are used for the hydraulic cylinders?

We select materials from Shanghai Baosteel, Daye Steel, and other domestic high-quality steel plants, including 27simn, 30crmnsi, and 40cr.

Mining Grade Wantong Double Acting Telescopic Column Hydraulic Support for Coal Mining

Name: Mining Grade Wantong Double Acting Telescopic Column Hydraulic Support for Coal Mining
Brand: Shandong Wantong Hydraulic Co., Ltd.
SKU: 682914881

Shandong, ChinaShandong Wantong Hydraulic Co., Ltd.

US$1,000.00-10,000.00

2 Pieces

Product profile

Customization

Available

Certification

CE, Ma;EAC;GOST;Aqa

Pressure

31.5-42MPa

Model NO.

WTCOL 230/220*595

Work Temperature

-30~+80 Degree Centigrade

Acting Way

Single/Double Acting

Working Method

Straight Trip

Adjusted Form

Telescopic Type

Structure

Piston Type

Material

27simn, 30crmnsi,40cr,

Warranty

14 Months From Production Time

Maximum Stroke

595mm

Estimated Time

20 Days

Outer Tube Diameter

230mm

Rated Pressure

31.5-42MPa

MOQ

2 PCS

Color

as Customer's Requirement

Transport Package

Plywood Pallet or Box

Specification

230/220*595

Trademark

WTJX

Origin

Rizhao, Shandong, China

HS Code

8412210090

Production Capacity

300, 000 Sets / Year

Key features

Full Process Manufacturing: Covers cold drawing, electroplating, heat treatment, machining, and spraying with 1000+ sets of equipment.

High-Pressure Performance: Uses Shanghai Baosteel and high-strength materials to ensure high compressive performance under heavy loads.

Premium Sealing System: Utilizes imported high-quality polyurethane seals from brands like Hallite and Taibao for leak-free operation.

Advanced Surface Treatment: Offers chrome plating, laser cladding, and copper melting with salt spray tests up to 3000 hours.

Robot Welding Technology: Adopts robot welding for joints to ensure beautiful, reliable welds and significantly reduce leakage risks.

Comprehensive Quality Testing: Every cylinder undergoes 9 strict tests including pressure, leak, buffer, and reliability tests before shipment.

Custom Design Capability: Supports customized design based on specific working pressure, size specifications, and installation methods.

Wide Diameter Range: Capable of processing hydraulic cylinders with diameters ranging from 63mm to 630mm.

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: ≤6.32h

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:Are you a factory or a trader?

We are a factory and a leading enterprise in the hydraulic industry in China, with two factories covering 180,000 square meters, over 700 employees, and more than 1,000 sets of production equipment.

Q:Do you support OEM and ODM?

Yes, we can accept both OEM and ODM orders.

Q:What is your after-sales service?

Our products come with a 14-month warranty. If any quality issues arise during this period, we will replace the parts for free for maintenance or directly replace the new cylinder.

Q:Do you have any cylinder surface treatment processes?

We have 6 complete surface treatment production lines and can perform chromium plating, zinc plating, copper plating, copper melting, QPQ, and laser cladding.

Q:How to ensure the cylinder sealing performance?

We use high-quality imported or domestic first-line brand seals (such as Hallite, Longli, etc.). Our cylinders undergo pressure resistance and pressure holding tests higher than the rated working pressure before leaving the factory to ensure long-term stable operation without leakage.