
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.
Product advantage
1. The suspension cylinder is made of high-strength alloy steel, with hard chrome plating on the surface to improve corrosion resistance and wear resistance, and adapt to harsh environments such as mining areas and extreme cold.
2. The suspension cylinder can be equipped with a displacement sensor to monitor the cylinder stroke and load in real time, improving vehicle stability and safety.
3. Long life: good fatigue resistance and long service life.
4. Strong load capacity: can withstand greater pressure and weight, and has strong load capacity.
5. Customized design can be carried out according to customer needs to provide integrated solutions.
Product Description and Application

The suspension cylinder is a core component of an intelligent hydraulic suspension system designed for heavy-duty multi-axle vehicles. It is mainly used to balance the load distribution of multiple bridges, improve the adaptability to complex road conditions and ensure transportation stability.
The main advantages of using hydro-pneumatic suspension are large load capacity, balanced pressure on each axlesafety and reliability. They are widely used in engineering fields such as equipment manufacturing, ports and docks airports, dangerous places and special operations.
Our company can customize suspension cylinders for mobile cranes, tractors, snowplows, multi-axle transport vehicles and other vehicles used in Europe, India and other countries.
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 manufacturer 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 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.
Q9: What is your main payment itme?
T/T.
Q10:What's the brand name of your products ?
A:Generally, we use our own brand "WTJX", OEM is also available as required.