Solution

Rolaram Actuators and Spiracon Roller Screws provide the precision linear and vertical actuation mechanisms for the de-chocking car system in the Universal Beam Mill Plant at British Steel Teesside Works.

The de-chocking car system comprises four cars, which are operated independently and have to be controlled on three axes, all interlocked and controlled through a PLC.

Since the installation of the new de-chocking car system, the time required to prepare rolls for changing at the mill stands has been reduced by 50% of times previously achieved under the manual system and has resulted in a very significant improvement in labour utilization.

Earlier attempts using hydraulics failed to achieve these demanding performance standards of moving high loads at high speeds with a high degree of accuracy

Products Used

• Electric Linear Actuators - Rolaram
• Planetary Roller Screw - Spiracon

Solution

Laiwu Steel section steel 4300mm heavy plate mill is composed of a 4 slab continuous casting machine and a heavy plate mill. This is the largest rolled plate production line of Laiwu Steel.

The fast cooling tables on the plate mill use 16 x B075 Rolaram actuators and 16 x E-Series 300kN Screw Jacks driven via 20 x bevel gearboxes and are driven by 8 electric motors.

Laiwu Steel is a 7M tonne per year steel maker in China.

Products Used

• Screw Jacks - E-Series Machine Screw
• Bevel Gearboxes - Neeter Drive Range-PowerGear
• Electric Linear Actuators - Rolaram
• System Components - Electric Motor
• System Components - Reduction Gearbox