High-performance sensors for high-performance mills
From hot rolling to heavy plate production, powerful forces are at work to re-shape steel slabs into finished sheet products. In addition to the heat of the hot slab itself, the "working" of the steel produces friction and heat, often requiring water cooling to control temperatures. Sensors applied at the rolling stand must withstand constant exposure to water, humidity, and sometimes corrosive byproducts like acids. Another area where water and corrosive effects can take their toll on sensors is the scale breaker or scale cracker, where high-pressure water is directed at the slab to remove broken scale from hot slabs, resulting in a cascade of hot water, steam, and corrosive contaminants all over the immediate vicinity.
Balluff is a leading supplier of rugged sensing technologies optimized to withstand the rigors of steel production while delivering exceptional sensing performance.
I/O is moving from the control cabinet to the machinery. Distributed I/O architectures enable faster, more error-free installation, shorter cable runs, plug-and-play connectivity, and simplified troubleshooting. Now networked I/O adds even easier setup, remote device configuration, and diagnostics to further enhance ease of installation and maintenance.
Hydraulic cylinders are capable of generating and absorbing the powerful forces involved in slab guiding and positioning. Balluff magnetostrictive linear position sensors provide continuous cylinder position feedback to maintain precise slab control through lateral guides on their way to the rolling stand.
Balluff magnetostrictive linear position sensors with enhanced temperature ratings (up to 100 °C) are specifically designed for applications in hot environments.
Balluff's wet-application linear position cylinder sensor is ideally suited for setting the roll gap with high accuracy. Rated to IP69K in a hermetically-welded, all-stainless steel housing, the HW/WB series withstands the wet, high-humidity, and acidic conditions of the steel mill and does not require additional protection against liquid ingress from rolling stand cooling water.
With the Balluff BIS M Industrial RFID system, you can automatically identify and record information about process tooling. This makes it possible to confirm that the correct rollers are being used and whether roller pairs form a matched set. The maintenance history of rollers can also be tracked to assure equipment does not remain in production beyond its maintenance interval.
Barcodes and color codes are used to clearly identify coils and other steel products. The Balluff BVS vision sensor is capable of reading these optical/visual product codes quickly and reliably, regardless of the angle of orientation when presented to the sensor.