Objective to satisfy domestic people are now making higher and higher demands on drilling equipment,objective to improve further automatic level of power tong.

Constructional and Technical Features of Hydraulic Nine-roller Hot Plate Leveler in Shaogang;

Improving of the Hydraulic System for Ladle Turntable;

The leak of the machine tool hydraulic system and solutions of it;

GK400N mixer hydraulic pressure and lubrication system analysis;

Y3180H gear-hobbing machine hydraulic pressure principle of work and fault analysis;

Design of round wood non-center peeling machine based on thickness detecting and hydraulic pressure;

Study on the Arm Structure and Hydraulic System of Intelligent Bridge_detection Vehicle;

The design means of the hydraulic system and the circuitry were introduced .

This paper analyzes the working processes of hydraulic and mechanical driving systems in caterpillar combines and focuses on the configuration method of the hydraulic driving system, the selection of the hydraulic components, the specification of the hydraulic system, the calculation and testing of the performance of the hydraulic system in some combines.

Method In ordinary traction beds designed by mechanical－ electrical－ microprocessor controlling method,this paper put a new method useing hydraulic transmission.

The CAT Improvement on CSP Line Hydraulics Testing Stand;

To design electromotor seat which can be moved by x-axis or y- a xis for dragging the five ton s electromotor and eliminating anti-influence ca used by dragon crane, the paper studied on this subject and made designing wor k for achieving the goal which could realize automation through the close combin ation of machinery and hydraulics and electronics.

This paper presents an intelligent coiling machine with advanced skills of machine,electric,hydraulics,electron and computer designed for manufacting motor windings with thick flat wires.