News & Innovations

News and innovations published by German exhibitors

  back to overview

Core drilling with a permanent magnet

Core drilling in all positions – backed by the name Alfra. The German manufacturer is going to present i.a the core drilling machines RB 35 SP and RB 50 SP at the Marintec in Shanghai (N2B7A-04). Unique: the patented permanent magnet with preload-capacity is developing large adhesive forces, even with small mass application. Due to the concept for magnet alignment, the 2 machines can be used on thin-walled materials from a thickness of 3 mm. They are suitable for the work on thin lining sheets, such as are usual in facade-, container- and ship construction – no matter if the machine is in an overhead position or the power supply is being interrupted. Machines fitted with an electromagnet unfold their full adhesive forces only from a thickness of 6 to 8 mm. The Rotabest-models with a permanent magnet can be used for wholes with a diameter from 35 up to 80 mm. A version with right/left rotation enables threading by means of an optional tapping device.

Further reading

Exhibitor: Alfra GmbH


We use cookies and the web analysis tool Matomo in order to optimally design and continuously improve our website for you. By continuing to use our website, you agree to this. Further information and an objection possibility can be found here: Data protection