Improved design for the cylinder of MG463-WD type electrical haulage shearer;

Designing calculation of cylinder on MG400/985-WD electrical haulage shearer;

Choose of the technology parameter of cylinder's rolled metal;

Analysing hydraulic cylinder systems on lifter frameworks;

Technical Innovation of Sealing Devices for the Main Hydraulic Cylinder of the Foil Mill;

In order to increase efficiency and maintain a consistent quality,it is suggested that combined boring-rolling machining technique should be used instead of former scalping boring,precise boring and rolling processes in the machining of hydraulic cylinder bore.

A finite element analysis for extruding oil cylinder and shatter oil cylinder of NZ·LJZ20-8 heavy-duty rubbish transport equipment;

By analyzing welding effect of test bars,guide rails,oil cylinders and crankshafts,the results show the casting defect repair machine is feasible in repairing sand holes and dispersed shrinkage of castings.

A new core-pulling mechanism propelled by oil cylinder was introduced.

Selecting and using of loose core hydrocylinder in injection mold;

In overhauling process,undermaintenance of individual hydraulic prop will be not propitious for highly efficient and safe production,and the sealing of hydrocylinder influences directly quality of maintenance.