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About US
YISHUI ZHONGXIN MACHINERY CO,.LD professional manufacturer hydraulic power pack/unit, hydraulic cylinder, cylinder rod, cylinder tube, linear actuator, actuator for solar tracker, superjack linear satellite actuator for plasma lcd tv lift, penumatic linear actuator for medical bed, die casting, hydrauliv valve and manifold, wheelchair autolift, tyre mould, etc
Our hydraulic power pack widely used in our lifting equipment, agricultural machine, medical machine, marine equipment, off shore, dock leveler, car tailgate, scissor lift, etc.
We are also strong in OEM project with our innovative engineers and specialized machineries.
We also export large quantity hydraulic fitting, hydraulic hose, centridge valves, hydraulic pump, etc. Also our cofa valve series is good quality as sun hydraulics.
Our manifold and casting can make based on your drawing by our CNC equipment.
We are also strong in OEM project with our innovative engineers and specialized machineries. We passed CE.
For more info, pls contact us via email or call.







Tek Etkili Mini Hidrolik Piston Teleskopik Hidrolik Silindir
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.
1.5 Straightness 0.02mm, Cylindricity0.015mm
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.
2.3 Chrome plated 0.03mm
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
Application






Packing &Shipping
Packing:Packed by PP bag and then in wooden box,also packed according to customer' request.
Shipping:Sample can be shipped by air express or air transportation,bulk can be shipped by sea.

We are also strong in OEM project with our innovative engineers and specialized machineries. We passed CE.
For more info, pls contact us via email or call.
CONTACT INFO
YISHUI ZHONGXIN MACHINERY CO,.LD
A10-A12 XICHENG INDUSTRIAL ZONE
YISHUI COUNTY,LINYI CITY,SHANDONG ,CHINA
PHONE:0086-132 8054 9331
SKYPE :koraqin
Any other question please feel free to contact by email

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