Top efficiency when grinding cast iron components
Make savings of over 30% using a turbine grinder with high quality abrasives
Grinding as a geometrically undetermined machining process is widely employed, whether processing moulds or removing sprues in foundries, in machinery, tool or jig construction, in industrial steel construction or the automobile industry. Abrasives are used to process the surfaces of widely varied materials such as metal, wood or plastics or used to separate materials. Every grinding process is based on two components, whether manual or used in stationary applications, the grinder and the abrasive, and they must be carefully matched to obtain an optimal end result.
Dr. Michal Hubálek, Head of Development at DEPRAG CZ a.s. and responsible for the pneumatic tool product area DEPRAG INDUSTRIAL gives us the inside story and reveals that it is this balance in particular which is indispensable for efficient and ergonomic processing within industry. When this balance is right, it can mean enormous savings in time and costs for many applications.
“Our customer, a well-known manufacturer of cast iron pump housings, came to us requesting that we re-examine their working procedures and find out where they can optimise” recalled Dr. Hubálek. “First of all we analysed the current situation on site. It is important at this point to not only inspect the grinder but also the abrasive used in the customer’s application” explained Dr. Hubálek. His customer could reach a max. grinding speed of 32 m/s. Upon closer inspection of the technical details it was discovered that an abrasive was being used which allowed for a maximum speed of 15,000 rpm. For the processing of cast iron parts the customer opted for the straight design grinder with vane motor GDS100-190BX from the comprehensive standard catalogue of DEPRAG INDUSTRIAL tools. This grinder with its power output of 1 kW and an idle speed of 19,000 rpm is the optimal solution for that abrasive previously in use.
After examination of the current situation the DEPRAG technicians become active. “Our goal is to increase productivity. This is basically attained by increasing the grinding speed. For optimal processing of the cast iron parts we selected the straight design grinder type GDST100-280 BX with power output 1 kW and idle speed 28,000 rpm for the customer”. In order to enable this turbine grinder to be effective a suitable abrasive which allows higher speeds is also required.
