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 application scenarios
Energy mining equipment mainly includes various mechanical devices used for energy extraction such as coal, oil, and natural gas.
Product Model
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), 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.
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?
A: 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?
A: We can accept both.
Q3: What is your after-sales service?
A: 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?
A: 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 is about working life of powered roof support hydraulic cylinders?
A: European standard EN1804-2 requires that the functional reliability of props and supporting jacks including their extensions should not be damaged after 21,000 loading cycles.Chinese national standard GB 25974.2-2010 Hydraulic supports for coal mines Part 2: Technical conditions for props and jacks 4.5.8 Durability, columns (including extensions) and supporting jacks should not fail after 21,000 loading cycles. Jacks should not fail after 10,000 loading cycles.
The working life of our props and jacks can reach European standard EN1804-2 and Chinese national standard GB 25974.2-2010.
After Service
Audited Supplier 
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