Content

Raw material extraction

In addition to the here presented practical examples, our product programme includes other products and system solutions for the safe evaluation of signals, switching and detection including the necessary accessories. The application examples shown in this brochure are an excerpt of the application possibilities. For the protection of hazardous plants in the operating, service or maintenance areas of devices, machinery or plants in the mining industry, we also have a comprehensive portfolio of safety mats, solenoid interlocks and trapped key systems.

Applications

End and position detection on mobile mining equipment

End and position detection on mobile mining equipment

Wherever mining equipment is used, the switchgear of the T/M 250/422/441 family of switches safely and reliably perform, even under the roughest application and ambient conditions. Therefore, they are a perfect fit for e.g. the detection on slewing gear drive units, jibs and accessory equipment.

The large range of different actuators provides for a large degree of freedom for all necessary presence, position or end detections. Different contact variants, with gold contacts or contact tips optionally are also available, these provide for a reliable processing of electronic signals with the lowest contact resistances. The enclosure and the cover of the switchgear are made of grey cast iron and are available with protection class IP 65 to IEC/EN 60529. With the T option, the majority of our switchgear families can be used in the extended temperature range of –40 °C … +200 °C.

Control stations and command panels

Control stations and command panels

Also the command and control devices installed at the man-machine interface of machinery and plants must be designed for rough ambient conditions. The multifunctional joystick switches for up to four actuating directions feature many contacts and variants for complex applications with protection class IP65, IP67 and IP69K.

The wide-ranging programme of "R" switches for command panels for mobile and stationary plants is available optionally in a metal version with high protective collar against inadvertent contact. The oil-resistant large switch surfaces can also be operated reliably whilst wearing gloves.

The emergency stop switches are equipped with positive-locking and safe latching, optionally with increased protection against inadvertent unlocking. The message buttons and indicator lights feature bright LED's for a maximum signal effect at very low maintenance costs.

Speed monitoring in mining operations

Speed monitoring in mining operations

We have developed a customised solution for the safe standstill or speed monitoring on belt and conveyor systems in the raw materials extraction.

With the inductive, metal encapsulated proximity switches of the IFL series and the electronic specifically designed DIM 1,1 speed monitoring (standstill monitor), the speed of the conveyor plant can be safely monitored within a freely adjustable speed window. In this way, overloaded conveyor belts and drive failures can be reliably detected. The solution operates without contact, is safe and can be smoothly installed.