Marine hydraulic cylinder for crane

Product Pictures:

hydraulic cylinder oil seal

raw material

hydraulic cylinder oil seal

finished products

hydraulic cylinder oil seal

transport packaging

hydraulic cylinder oil seal

package

hydraulic cylinder oil seal

Processing and inspection:

1.Cylinder Tube

According to the work pressure,work temperature,work situation and other special requirements,different cylinder tube will be choosed.

1.1 Cylinder Tube:cold drawn precision seamless steel tube,hot rolled seamless steel tube,forged tube.

1.2 Tube Material: SAE1020(20#) , SAE1045(45#) ,16Mn(Q345B),27SiMn,etc.

1.3 Surface Roughness:R0.16-0.32μm

1.4 Inside Chromating:If necessary,inside tube will be chromated.

2.Piston Rod

2.1 Rod Material:35#,SAE1045(45#),35CrMo,42CrMo4,etc.

2.1 Technical Treatment: Quenched and tempered.1.5-1mm,or 1.03mm per millimetre.

3.Seal Kits

According to customers' requirements and work condition,we will choose suitable seal kits,including:Hallite,NOK,SKF,Parker,Merker,Trelleborg,China made,Taiwan made.We will supply you suitable seal kits to ensure hydraulic cylinders a long lifetime,easy maintenance and simple repairing.

4.Inspection and Testing

4.1 We have professional quality control department,every step from raw material to finished product is in the same factory,each procedure will be tested by professional inspector.

4.2 Before hydraulic cylinder is assemblied , every spare parts would be measured and cleaned .After hydraulic cylinder is assemblied , pressure test would be carried out one by one.We ensure the testing pressure is 30%-50% higher than rated pressure in almost one hour's test.Each hydraulic cylinder must be tested without any leakage. hydraulic cylinder oil seal

Hydraulic Cylinder Types:

We specialize in design and manufacture hydraulic cylinders to satisfy multiple uses including:

• Construction Machinery cylinders for: loaders, excavator, forklift, bulldozer, dumper, roller, crane etc.
• Metallurgical Machinery cylinders for: decelerator, tile press etc.
• Mining Machinery cylinders for: crasher, coal cutter etc.
• Agricultural & forestry machinery cylinders for: soil preparation machine, harvester, weeder etc. 

About us:

Welcome come to visit our factory!

Our company is one of the biggest hydraulic cylinder manufacturer in China, specialized in design, R&D and manufacturing of hydraulic machinery products. Our factory covers an area of 180,000 square meters with 600 employees in it. Its annual production capacity is 200,000 sets with 700 sets of manufacturing equipments. hydraulic cylinders power steering

The international market has covered Eastern Asia,Southeast Asia,North America,South America and Eastern Europe. hydraulic cylinder oil seal

WORKSHOP SHOW:

WORK FLOW:

TEST EQUIPMENTS:

CERTIFICATES AND QUALIFICATIONS:

Q1:What's the brand name of your products ?

A:Generally,we use our own brand "WTJX",OEM is also available as required.

Q2:Hydraulic cylinder internal leakage?

A:3 main reasons causing internal leakage :Overload,polishing bad controlled,cheap seal kits.As is known to all,vehicles in China are often overloaded,our products all designed to  bear the overload power.We have numerical control machine  to assure the polish processing .And we use the imported seals to meet customers' demands.

Q3:Is your design reasonable?What about your product safe coefficient?

A:We have R&D team with abundant design experience.We also establish production,education,and research cooperation with universities.Rest assured.

Q4:What about the quality feedback of your products?

A:WE HAVE NEVER RECEIVED EVEN ONCE QUALITY COMPLAINT FOR MANY YEARS OF INTERNATIONAL TRADE.

Q5:Is the sample free of charge?

A:Yes.In our acceptable range, we can offer a sample by charging freight. And we will return the fee after you make an order.

Q6:How about the delivery time?

A:Over 700 sets advanced equipments and 600 skilled staffs to meet customer's large demand in short delivery time.Generally ,it's 7-15 days.

Q7:What 's the MOQ?

A:The MOQ is 1 piece. hydraulic cylinder oil seal

Q8:What's the terms of payments ?

A:L/C,T/T,D/A,D/P either is  available.

Q9:How can I contact with you ?

A:Mobile phone: +86-18769399291

    Skype: qxm1124