A high performance digital electric and liquid servo system with mechanical,electric,liquid and measure technique packed together.Our company can offer perfect solutions covering design,manufacturing,commissioning and after sales service of the system.
The principle and components sf hydraulic screw down system
The system consists of screw down oil cylinders,measuring sensors(for position and pressure),electric and liquid servo valves,pump station,gauge meters and high performance PLC.
Application
All kinds of rolling mills for ferrous or non-ferrous metals,includiing single stand and multi-stand 4Hi,6Hi or multi-Hi cold rolling mills,hot rolling mills and temper mills.
Jogging adjustment and alteration for Hydraulic screw down of all kinds of old roling mills.
Control of roller bending,positive and/or negative.
Main Function
Automatic position control(APC),a closed loop control with Bulluff or Sony position sensor,its resolution reaches to ±1μ
Automatic rolling force closed loop control
Automatic APC/AFWC switch over smoothly
Rolling gap or force setting and numerical display
Adjust oil cylinder in-phase
Rolling gap slope setting and numerical display
Signal and alarm system
Optional long-distance fault diagnosis