Compact, mobile recycling systems have become a growing trend. RM compact crushers are very handy: thanks to their compact size, low noise level and dust emissions they can be used anywhere. Rubble Master has selected the Vacon® 100 X AC drive from Danfoss Drives to control their new mobile crusher “RM V550GO!” For Rubble Master, the Vacon® 100 X provides something no other AC drives supplier was able to offer.
Rubble Master HMH GmbH, 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. RM 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 11 kW to control the motors of the vibrating conveyor of their crushers. However, for their new crusher design they needed a 15 kW 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 Masteris also considering replacing the customized 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.
The Vacon® 100 X represents the concept of decentralized 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.
