How long is your delivery time?

The delivery time is 10-25 days.

What is your payment term?

Usually, we choose T/T. Other terms include LC, PayPal, D/P, and Western Union.

What is the warranty period for your products?

We provide a 14-month warranty. During this period, we will replace parts for free for maintenance or replace the new cylinder if quality issues arise.

Double Telescopic Hydraulic Prop Cylinder for Coal Mining Equipment

Name: Double Telescopic Hydraulic Prop Cylinder for Coal Mining Equipment
Brand: Shandong Wantong Hydraulic Co., Ltd.
SKU: 2191724155

Shandong, ChinaShandong Wantong Hydraulic Co., Ltd.

US$1,000.00-10,000.00

2 Pieces

Product profile

Customization

Available

Certification

GS, CE, ISO9001, ISO16949

Pressure

31.5~45MPa

Model NO.

250*920*880-1375

Work Temperature

-30~+80 Degree Centigrade

Acting Way

Double Acting

Structure

Piston Type

Material

27simn, 40cr, 30crmnsi

Rod Diameter

160mm

Maximum Stroke

1800mm

Estimated Time

20 Days

Color

as Customer's Requirement

Transport Package

Pallet, Wooden Case or as Customer's Requirement

Specification

250/160*1800

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 100% inspection.

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

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

Premium Seal Selection: Utilizes imported high-quality polyurethane seals from brands like Hallite and Taibao for leak prevention.

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

Customizable Dimensions: Supports customized rod diameter, maximum stroke, and color based on customer requirements.

Wide Processing Capacity: Capable of processing cylinder diameters from 63mm to 630mm with lengths under 6 meters.

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

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: ≤6.65h

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

Q:Do you support OEM and ODM?

We can accept both OEM and ODM.

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. We also provide pre-sale communication, sale training, and 24-hour telephone service.

Q:Do you have any cylinder surface treatment processes?

Our company has 6 complete surface treatment production lines. We 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 will undergo pressure resistance tests and pressure holding tests higher than the rated working pressure before leaving the factory to ensure long-term stable operation without leakage within the rated pressure range.