Home / Design / Crusher control

Crusher control

Compact, mobile recycling systems have become a growing trend

Rubble Master, located in Linz, Austria, develops and manufactures mobile compact crushers and mobile screens, which are used globally.

RM crushers are cost-effective, simple to transport and operate and can be used anywhere thanks to their compact size, low noise level and dust emissions.

The crushers enable construction companies and disposal operations to process small to medium quantities of waste building materials themselves, wherever and whenever they want, cost effectively.

Until recently, Rubble Master had used a custom-made drive up to 11kW to control the motors of the vibrating conveyor of their crushers. 

However, for their new crusher design they needed a 15kW drive, which could withstand demanding environments. 

Gerald Hanisch, CEO from RM, explains: “As our mobile crushers are used all around the world, we needed a robust drive which endures a wide range of operating temperatures and is able to withstand dust, moisture, humidity and vibrations. Additionally, the drive must tolerate high altitudes.”

RM uses VACON 100 X drives in their new RM V550GO to control two unbalanced motors in parallel. These motors run a vibrating conveyor, which transports the material to be crushed (for example, demolition material) to the crushing section. CAN bus is used for communication with their internal control system.

The VACON 100 X fits perfectly and provides all the features Rubble Master needs within one standard drive. Due to the IP66 rating, RM was also able to remove the extra enclosure which was required by the previous solution.

Now Rubble Master is also considering replacing the customised solution used in their existing products with VACON AC drives. 

Additionally, they’re also planning to start using VACON AC drives to control other parts of their machines.

Rubble Master has selected the VACON 100 X AC drive from Danfoss Drives to control its new mobile crusher RM V550GO

The VACON 100 X represents the concept of decentralised drives: products that can be mounted directly on the motor or machine or wherever the most convenient location for the drive is. 

Significant savings can be achieved in cabling costs, space and energy when the installation does not require the drives to be mounted in a separate electrical room or enclosure.

A die-cast metal enclosure provides the best protection available, and a breathable Gore vent protects the sealings and a heatsink cooling system which isn’t dependent on motor airflow. 

On top of all this, it has built-in harmonic filtering chokes, making it easy to see why this is the ideal motor mountable solution for all sorts of applications.

“We received all the service and support we needed during our testing and piloting phase, and we are very happy and satisfied with the solution,” Gerald Hanisch, CEO from RM.

Check Also

Inner or outer? Rotor position specification for miniature DC motors

To get the most from miniature motion technology, a key design specification is whether to …

Polycarbonate enclosures protect crane control architecture in corrosive atmospheres

Galvanising plants need heavy lifting capabilities, but these systems must be able to endure an …

Firmware enables faster drive-to-drive communication and more flexible exchange of CANopen process data

The COMBIVERT F6 and S6 drive controllers from KEB Automation are now available with new …