Hydraulic Jack Legs for Longwall Mining Powered Roof Support

• Customization: Available
• Certification: ISO9001, 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

Product Description

Product Description

The hydraulic cylinder for hydraulic support produced by Wantong Hydraulic includes single telescopic pillar, double telescopic pillar and various jacks, with high quality, special processing technology, high wear resistance and corrosion resistance, excellent working performance, meeting extremely harsh environmental requirements, long service life and low maintenance cost.
Our product advantage lies in:
1. The raw materials we have selected are relatively good, with special processing techniques. The product has high wear resistanceand corrosion resistance, which can meet various usage environments.
2. The product has a long service life and low maintenance costs.
3. Our company's products have passed the safety mark certification of the Chinese Academy of Coal Sciences.

To better ensure the safety of your goods, professional, environmentally friendly, convenient and efficient packaging services will be provided.

Specification

Single Telescopic Column of Hydraulic Support

ITEM	Cylinder Specification	Bore (mm)	Rod (mm)	stroke(mm)	Closed Size (mm)	Rated Working Pressure (mm)
1	160/150	160	150	720	1100	39.8
2	180/160	180	160	1050	1397	31.5
3	200/185	200	185	790	1290	35
4	200/170	200	170	537	1068	≤42
5	230*220	230	220	1805	2185	31.5
6	230*220	230	220	595	1066	31.5
7	230/210	230	210	1200	1590	39.7
8	250/235	250	235	1285	1705	40.8
9	280/260	280	260	1300	1710	≤42
10	320*295	320	295	1300	2060	37.3
11	320/295	320	295	1145	2006	37.3
12	320*295	320	295	1278	1690	40.4
13	360/340	360	340	1395	1870	36.86

Company Profile

Shandong Wantong Hydraulic Co., Ltd. (Stock Code: 830839), founded in June 2004, is a domestic medium and high pressure hydraulic cylinder supplier integrating R&D, production, sales and service. Its main products include three series of hydraulic cylinders for dump trucks, hydraulic cylinders for mechanical equipment and hydropneumatic springs. The company's management team and main technical personnel are stable. We has constantly innovated from the actual needs of customers, has gradually positioned the medium and high-end market, and has provided high-quality products for customers in automobile, coal mine, petroleum, engineering machinery and other industries with high-quality service.

>Experience in export North America, Australia, Asia, Middle East, Africa.
>Hydraulic Cylinders can be made according to client's requirements.
>The Hydraulic Cylinders can be used for Dump Truck, Agricultural Machinery, Engineering Machinery, Garbage Truck, Landing Platform etc.


Production Process


Special Process


Quality Guarantee System

1. Trial Operation Test
2. Start-up Pressure Test
3. Pressure-Tight Test
4. Leak Test
5. Full Stroke Test
6. Buffer Test
7. Testing the Effect of Limit
8. Load Efficiency Test
9. Reliability Test
Every piece of hydraulic cylinder are tested and will send out only after they are pasted the each test. Our company has abundant technical force and perfect testing means. By making wide technical and business cooperation with many related enterprises, universities, colleges and institutes both at home and abroad, and employing senior engineers and software engineers, we have greatly strengthened and improved our designing, processing, and testing abilities.


Machining Equipment

Our company have 700 sets manufacturing equipment, such as cold drawing production line, heat treatment production line, surface treatment production line, testing equipment, various digital-control machining equipment, gantry style linear electroplating production line.

Certificate


Our Customers

Domestic Marketing Locations
The company's products are widely sold in Shandong, Shaanxi, Shanxi, Henan, Hebei, Hubei, Beijing, Inner Mongolia, Gansu and other more than 20 provinces, municipalities and autonomous regions.

Foreign Marketing Locations
Our products are exported to the United States, Canada, Mexico, Russia, South Africa, Indonesia and other Europe, America, South America, Southeast Asia.
 


After Service
1.Pre-sale service: Keep communicating with the truck manufacturers , including selection of product model , design of hydraulic system, test of performance and analysis of the accident. Once the problems occur, we will solve them immediately together with truck manufacturers.

2.The sale service: Provide training and technical support for users.

3.After-sale service: Solve the problem firstly, then analyse responsibility ; Replace the system components immediately if any need.

4.24 hours telephone service hotline.

FAQ

Q1: 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.

Q2: Do you support OEM and ODM?
We can accept both.

Q3:What is your after-sales service?
Our products come with a 14-month warranty.lf any quality issues arise during this period,We will replace the parts for free for maintenance, or directly replace the new cylinder.

Q4: 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.

Q5: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.