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;

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.

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.

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.