1. More secure, rigid integrated limit prove inner tube take out; 
2. More efficient, high-low pressure sealing is adapting to frequent operation;
3. More widely, adapt to different regions and different working situations;
4. More powerful, system pressure reaches 20-24Mpa;
5. More durable, cylinder barrel uses seamless steel pipe, chrome plated on the surface is more reliable;

Complete set of hydraulic system include:

 Lifting valve: small size, steady pressure, safe and reliable

•  
• gear pump: small size, strong power, long life
•  
• hydraulic oil tank: multiple cleaning protection
•  
• gas valve:   proportional control and easy manipulation
•  
• limit valve: to optimize the process of use and improve the lifting frequency
•  
• high-pressure oil tube:durable, dust proof, not rust.
•