17 Jan 2017

Reliable sludge removal for water jet cutting

Robust rotary lobe pump will even pump highly abrasive residual water without any damageCutting systems, which are based on high-pressure water jets and do not alter the material structure through their energy input like lasers do, are establishing themselves in more and more areas, such as robotics or automotive manufacturing. A cutting aid, an abrasive, is mixed into the water to increase cutting performance. This abrasive is frequently a fine garnet sand. After the cutting process, the water-sand mixture has to be separated again, so that the sand can be disposed of. A manufacturer of a water jet cutting systems offers an automated solution for its systems to remove and separate the sludge from the water. Because conventional pumps wear very quickly due to the abrasive medium, the company is using the particularly robust TORNADO® T2 rotary lobe pumps made by NETZSCH Pumpen & Systeme GmbH. Their condition is almost as good as new, even after double the operating time in comparison to the previous pumps. more...