“I have a longstanding customer relationship with Grondverzetbedrijf’s owner Bert van den Brink,” said Ophof Recycling director Gerrit Ophof. “He is open for new ideas and has an excellent sense of the market and his business. He knows the crusher industry very well and has already tested equipment from different producers. Since there were no Rockster crushers in Holland, we went to Austrian customers to see the plants in operation and test them.”

Almost all operations with crushing plants are calculated on cost/t of final material, therefore the optional weighing system was essential for Grondverzetbedrijf. The majority of their jobs are handling demolition waste and is important to easily move the plant from site to site. Thanks to its compact size and weight the crusher, including screen box and return belt, can be transported on a semi-trailer without permits.

A main reason for choosing a Rockster crusher was the ease of use and the good accessibility, so any maintenance work can to be carried out quickly. “The hydraulic drive, the continuously variable rotor speed and the sophisticated screening system convinced me immediately,” said Van den Brink. “I can therefore adjust the quality of the final grain to my customer’s requirements very accurately. The machine also features an innovative main belt wear protection, which guarantees the durability of the belt. We were able to immediately operate after delivery, producing about 140t/h of 650mm to 0-31.5mm.”

As the Dutch government requires the possibility to control the location and use of a construction machine at all times, the R1100DS had to be equipped with a GPS device.