Do your products come with a warranty?

Yes, we have 14 months from production time. In this time, if the quality problem we will free repair for you.

Heavy-Duty Hydraulic Roof Cylinder for Longwall Coal Mining

Name: Heavy-Duty Hydraulic Roof Cylinder for Longwall Coal Mining
Brand: Shandong Wantong Hydraulic Co., Ltd.
SKU: 2108211392

Shandong, ChinaShandong Wantong Hydraulic Co., Ltd.

US$4,000.00-10,000.00

2 Pieces

Sample price:US$6000.00/piece.Request sample

Product profile

Customization

Available

Certification

GS, ISO9001, ISO/Ts 16949;EAC;GOST;Aqa

Pressure

31.5-45MPa

Model NO.

250*920*880-1375

Work Temperature

-30~+80 Degree Centigrade

Acting Way

Double Acting

Working Method

Straight Trip

Adjusted Form

Telescopic Type

Structure

Piston Type

Material

27simn,40cr,30crmnsi

Delivery Time

20 Days

Outer Tube Diameter

250mm

Maximum Stroke

1800mm

Warranty

14 Months From Production Time

Working Pressure

31.5-45MPa

Color

as Customer's Requirement

Transport Package

Pallets/Plywood

Specification

250*920*880-1375

Trademark

WTJX

Origin

Shandong, China

HS Code

8412210090

Production Capacity

300, 000 Sets / Year

Key features

Customizable Dimensions: Outer tube diameter and maximum stroke can be customized to customer requirements.

Customizable Color: Color is available as per customer's specific requirement.

High-Quality Materials: Constructed from 27simn, 40cr, and 30crmnsi with superior wear and corrosion resistance.

Comprehensive Certification: Certified with GS, ISO9001, ISO/Ts 16949, EAC, GOST, and Aqa standards.

14-Month Warranty: Includes free repair for quality issues within 14 months from production time.

100% Quality Testing: Every cylinder undergoes nine rigorous tests including leak and full stroke tests before delivery.

Wide Temperature Range: Operates effectively in extreme environments from -30 to +80 degrees Celsius.

Fast Delivery: Standard delivery time is 20 days for customized orders.

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: ≤10.24h

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 are the same aspects of your cylinder with Hyva cylinder?

Same inside structure. Same outside dimension and same mounting sizes. It can be interchangeable with Hyva's

Q:Are you a manufacture or a trade company?

Manufacture, we are the leader manufacturer of hydraulic industry in China with over 21 years' experience and technology accumulation. With strong technical team we could solve any annoyance of you.

Q:Do you have quality control system?

Yes, The quality management system introduced is: ISO/TS 16949:2009-certified by NQA and IATF cert.

Q:How can I get a booklet and buy a cylinder from you?

Very easy! Just leave me a message or email or call me directly, let me know you are interesting in our products. I will talk with you for the details soon!

Q:Can you tell me the price for the cylinder?

1. Please advice the drawing with technical requirement. 2. Please advice the model No. after you check our booklet. 3. Please advice the tipping capacity, number of stages, closed length, mounting type and size. 4. Please also help advice the quantities, this is very important.