Big Bore Diameter Hydraulic Support Leg Cylinder for Coal Mining Equipment

• Customization: Available
• Certification: GS, ISO9001, ISO/Ts 16949
• Pressure: 31.5~42 MPa
• Model NO.: 230/220/180/160-963-920
• Acting Way: Single/Double Acting
• Working Method: Straight Trip
• Adjusted Form: Telescopic Type
• Structure: Piston Type
• Material: 27simn,40cr,30crmnsi
• Maximum Stroke: 1883mm
• Warranty Time: 14 Months From Production Time
• Delivery Time: 20 Days
• Outer Tube Diameter: 230mm
• Certificate: ISO9001, Ts/16949
• Transport Package: Pallets
• Specification: TS/16949
• Trademark: ODM / OEM / WTJX
• Origin: Shandong, China
• HS Code: 8412210090
• Production Capacity: 300, 000 PCS/Year

Product Description

Product Description

Hydraulic cylinders for hydraulic supports produced by Wantong Hydraulic include single telescopic props and double telescopic props, which are of high quality, special processing technology, high wear resistance and corrosion resistance, excellent working performance, meeting the requirements of extremely harsh environment, long service life and low maintenance cost. The cylinders have passed the complete coal safety certification and officially recognized by the industry.

Wantong Hydraulic has been committed to serving domestic large-scale coal mining equipment manufacturers, major mining companies, coal machinery equipment maintenance manufacturers, maintaining a good long-term strategic cooperative relationship. The products have been exported to the United States, Australia, Russia, Africa and other regions, and have won wide market acclaim after years of market validation.

 

Product Model

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

 

Our products are designed with the following advantages:

1.There are many product models, which can meet the needs of most customers;
2.We have a professional design team, they are one of the driving forces for our development;
3.Our design team can customize products according to the needs of customers to meet the needs of different customers.

About Us

Shandong Wantong Hydraulic Co., Ltd is one of the biggest hydraulic cylinder manufacturer in China, specialized in design, R & D and manufacturing of hydraulicmachinery products etc, with its annual production capaciy of 200000 sets.My company with 600 employees in it ,covers an area of 180000 square meters.There are 700 sets of mnufacturing equipment. Our company invested 10 million RMB in two cold drawing lines, one is 200 tons and the other is 320 tons with acid cleaning, phosphatization, heat treatment and alignment cutting.

All production steps are finished in the same factory, and this guarantees good quality and short lead time. All the products are ISO/TS16949, CCRI, CCS, and DNV and ABS certified. We passed ISO/TS16949 International Quality System Certification, and we are an "AAA Level Standardization and Good Behavior Enterprise". The technology center of our company was rated as Provincial Technology Center, and our company has become the base of production, education and research of Shandong University of Science and Technology.Advanced equipment, excellent talents and strict management help us develop first-class products.

The company has been deeply rooted in the hydraulic field for 20 years, with a stable management team and key technical personnel. Adhering to the corporate philosophy of "creating hydraulic products for customers", the company has persisted in research and development investment for many years, mastering core production process technologies such as cold drawing technology, sealing structure optimization technology, piston rod heat treatment and surface treatment technology, mirror polishing roughness control technology, and accumulator dual chamber technology. Starting from the actual needs of customers, the company continuously innovates and gradually positions itself in the mid to high end market, providing high-quality products for customers in industries such as automobiles, coal mines, petroleum, and engineering machinery with high-quality services.

Production Process & Equipmnet

Cold Drawing

The utilization rate and performance of the material are improved through the cold drawing process.

Heat Treatment
The surface hardness of the material is improved by heat treatment.

Boring
Through boring treatment, the finish of the inner hole of the material is improved.

Hard Chrome
Through chrome plating treatment, the corrosion resistance of the material is improved and the service life is prolonged.

Every piece of hydraulic cylinder are processed through dozens of steps, including raw material processing, cylinder assembly, painting, etc. Each step is indispensable, and we also have advanced processing equipment to ensure that the processing dimensions of raw materials meet the requirements of product production.

Quality Inspection

Raw Material Inspection:
The material of raw materials is detected by carbon and sulfur analyzers and spectrometers.

Material Performance Inspection:
The tensile strength, yield strength, hardness and other properties of the material are tested by the material tensile test bench,Brinell hardness tester, Vickers hardness tester and other equipment.

Process Inspection:
The geometric shape, shape and position tolerance and finish of semi-finished products are detected by three coordinates,
profilometer and ultrasonic roughness meter.

Chrome Plating Control:
The thickness, hardness and corrosion resistance of the product coating are tested by ultrasonic hardness tester, ultrasonic thickness gauge and salt spray test bench.

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.

Packaging

To better ensure the safety of your goods, professional, environmentally friendly, convenient and efficient packaging services will be provided. Plywood Case, or according to your requirements, We will pack and ship the products in strict accordance with the requirements to ensure that they can be delivered to our esteemed customers in perfect condition.

Credentials & Collaborations
 

Shandong Wantong Hydraulic Co., Ltd. is a very excellent enterprise in all aspects, so we have gained a lot of honors and certificates at home and abroad, and we are the partners of many leading enterprises in China, we provide them with first-class hydraulic products and services, deeply trusted by them, at the same time and in the right place, we will also participate in various exhibitions to promote our latest products, I believe your choice will make us more successful.

FAQ

Q1: Are you a manufacture or a trade company?
Manufacture, we are the leader manufacturer of hydraulic industry in China with 20 years experience and technology.
 
Q2: Do you have quality control system?
Yes, The quality management system introduced is: ISO/TS 16949:2009-certified by NQA and IATF cert.
 
Q3: How can i get a booklet and buy a cylinder from you?
Very easy! Just leave me a message or email and tell me your requirement, let me know you are interesting in our products.I will talk with you for the details soon!
 
Q4: Can you tell me the price for the cylinder?
1. Please help inform your drawing with detail requirement.
2. Please help inform the cylinder NO. after you check our booklet.
3. Please help inform the tipping capacity, strokes, number of stages, closed length, mounting type and size and other information.
4. Please also help inform the quantities, this is very important.
5. Your destination port.
 
Q5: Do your products come with a warranty?
Yes, we have 14 months warranty. In this period, if the quality problem we will free repair for you.
 
Q6: Can I customize our products from you?
Yes, we can make products according to your requirements. Please kindly send me your specifications and drawings.
 
Q7: Can you help me to install or give me advice about what kind of hydraulic cylinder or power pack should I use for specific machine?
Yes, we have 25 experienced engineers who are always ready to help you. If you do not know what kind of hydraulic cylinders should be used in your machine, please just contact us, our engineers will help you to design the exact products you need.
 
Q8: What is the delivery time?
25-30 days for mass production, which is depend on quality, production process and so on.