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.

All kinds of rolling mills for ferrous or non-ferrous metals, including 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 rolling mills.

Control of roller bending, positive and/or negative.

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