JDF  is  a modern manufacturing enterprises  focusing on the design and manufacture of hydraulic cylinders that are widely used in the field of mining, metallurgy, construction machinery, marine, . hope  to work with you.

we  have already brought in new test equipment for our hydraulic cylinders. All of our cylinders will be tested before sending out.

 excavators works fast cycle times and efficient operation with power hydraulic system. Power lifting capacity makes drivers to lift more material with each cycle. The high pressure common rail fuel injected engine system makes optimum and fuel efficiency. It means you will spend more time working and less time fueling

A hydraulic cylinder is a mechanical actuator used to provide unidirectional force through a unidirectional stroke. Hydraulic cylinders are used in almost every industry and are available in a variety of configurations. The two main types of hydraulic cylinders are Tie-rod and Welded. Each of these cylinder types can have unique applications due to their designs. Tie-rod cylinders are usually installed in light to medium duty applications and are generally designed to be repaired or re-packed if necessary. Welded cylinders are designed for most applications and are more complex in design but are generally more difficult to repair due to the welded design. Welded cylinders are typically a better solution due to their compact design and when a more robust design is important in an application.

How to deal with hydraulic cylinder rod surface ? A high quality hydraulic cylinder rod depends mostly on the cylinder rod's surface. And a high quality surface directly decides how long the seal kit can be used. JDF  hydraulic cylinder rods can reach to below requirements. 1, raw material rod heat treatment.  HB=215-250 2, rod face induction hardened HRC 50-62 3, ROD chrome plating. 0.03-0.05mm hardness  HV900-1100

SK07N2  BUCKET CYLINDER  Today send out SK07N2 Bucket hydraulic cylinder.