Long-Life Prop Cylinder for Coal Mining Equipment

• Customization: Available
• Certification: GS, ISO9001, ISO16949;EAC;GOST;Aqa
• Pressure: 31.5-42MPa
• 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
• Estimated Time: 20 Days
• Place of Origin: Shandong, China
• Warranty: 14 Months From Production Time
• Work Pressure: 31.5-42MPa
• Transport Package: Pallet, Wooden Case or as Customer′s Requirement
• Trademark: WTJX
• Origin: Shandong, China
• HS Code: 8412210090
• Production Capacity: 300, 000 Sets / 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. (stock code: 830839) was established in June 2004. It is a listed company in China and an international supplier of medium and high pressure hydraulic cylinders integrating R&D, production, sales and service. The company has 21 years of experience in manufacturing hydraulic cylinders and 79 R&D personnel. The leading products include special cylinders and hydraulic systems for dump trucks, cylinders for mechanical equipment, suspension cylinders, engineering machinery cylinders, electric cylinders, hydraulic components, etc.

Machining Equipmnet

Horizontal Lathe:
The maximum workpiece rotation diameter for machining is Ø 1600mm, the maximum workpiece rotation diameter for tool holder is Ø 1250mm, and the maximum workpiece length is 6m.

CNC vertical lathe:
With a maximum processing capacity of Ø 1600mm. It mainly processes large disc and cover parts. Such as the outer circle, inner hole, internal thread, external thread, sealing gear, etc. of the end face of the piston/gland.

External grinding machine:
The external grinding accuracy is IT5-IT6, the roughness is Ra 0.1-0.4, the grinding diameter is Ф 800mm, and the grinding length is within 6m.

Deep hole boring/scraping rolling machine:
It is mainly used for machining inner holes in cylinder bodies, with the ability to machine inner holes with the diameter of less than Ф 630mm and the length of less than 6m.

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.


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 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 equipments.

 

Q2. What is your greatest strength?
Our company has a complete production line and quality control system. From the start of production to packaging, all processes are manufactured in our company, ensuring quality while minimizing costs to teh greatest extent.
 

Q3. Do you have any cylinder surface treatment processes?
Our company has 6 complete surface treatment lines. We can perform chromium plating, zinc plating, copper plating, copper melting, QPQ, and laser cladding.
 

Q4.Which trade terms do you support? Is it possible to pay by installments?
All terms are acceptable, such as EXW, FOB, CIF, DDP, etc. Installment is supported, it needs to be discussed specifically based on the order amount.
 

Q5. How long is your delivery time?
10-25 days.

 

Q6. What is your payment term?

Usually, we choose T/T.

 

Q7. 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.