How long is the delivery time?

The delivery time is typically 10-25 days.

What are your payment terms?

We usually choose T/T. Other accepted terms include LC, PayPal, D/P, and Western Union.

What is the warranty period for the hydraulic jack legs?

The warranty period is 14 months. During this time, we provide free parts replacement for maintenance or direct replacement of the new cylinder if quality issues occur.

Hydraulic Jack Legs Cylinder for Longwall Mining Powered Roof Support

Name: Hydraulic Jack Legs Cylinder for Longwall Mining Powered Roof Support
Brand: Shandong Wantong Hydraulic Co., Ltd.
SKU: 2217305205

Shandong, ChinaShandong Wantong Hydraulic Co., Ltd.

US$1,000.00-10,000.00

2 Pieces

Product profile

Customization

Available

Certification

CE, ISO9001, Ma;EAC;GOST;Aqa

Pressure

31.5-42MPa

Model NO.

280/260/200/180*1375

Work Temperature

-30~+80 Degree Centigrade

Acting Way

Double Acting

Structure

Piston Type

Material

27simn, 40cr, 30crmnsi

Warranty

14months

Work Pressure

31.5-42MPa

Estimated Time

20 Days

Color

as Customer's Requirement

Weight

538.9kg

Transport Package

Pallet, Wooden Case or as Customer's Requirement

Specification

280/180*1375

Trademark

WTJX

Origin

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-Strength Material Selection: Uses Shanghai Baosteel and Daye Steel to ensure high compressive performance under heavy loads.

Premium Seal Brands: Utilizes imported seals from Hallite, Taibao, and Youtaike for long-term stable operation.

Advanced Surface Treatment: Offers chromium plating, laser cladding, and copper melting with hardness up to 800HV and 3000h salt spray test.

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

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

Customizable Design: Supports customization based on working pressure, size specifications, and installation methods.

14-Month Warranty: Provides free parts replacement or new cylinder replacement for quality issues within 14 months.

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: ≤10.68h

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 and over 1,000 sets of production equipment.

Q:Do you support OEM and ODM?

Yes, we can accept both OEM and ODM services.

Q:What is your after-sales service policy?

Products come with a 14-month warranty. If quality issues arise, we will replace parts for free or directly replace the new cylinder. We also provide 24-hour telephone service and immediate problem-solving support.

Q:What surface treatment processes do you offer?

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

Q:How do you ensure cylinder sealing performance?

We use high-quality seals from brands like Hallite and Longli. Every cylinder undergoes pressure resistance and holding tests higher than the rated working pressure before leaving the factory to ensure no leakage.