€1,232 + VAT @ 23%

Alfra GmbH RB 50B (230V)



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Alfra Drilling Machines RB 50B (230V)

The Magnetic Core Drilling Machine can be fixed with a switchable electromagnet on ferromagnetic work pieces. The electromagnet (C) and the motor (A) can be switched on and off with the large buttons of the control panel (E). A self-adjusting dovetail guide on which the motor is mounted can be adjusted in height with the star handle (F). On the back of the machine is the nameplate including the serial number.

This machine is destined to cut material with magnetisable surface with core cutters and twist drills in sheltered environment for commercial use in industry and craft. The device is suitable for drilling vertical, horizontal and overhead.

Technical Specifications:

Core drill dimensions: Ø 12.0 - 50.0 mm

Cutting depth: 50.0 mm

Twist drill: Ø 1.0 to 16.0 mm with quick-release chuck MT 2 up to Ø 20.0 mm with MT2 DIN 345 direct

Counterboring: Ø 10.0 - 40.0 mm

Tapping: with tapping attachment: M3 - M20

Arbor: MT2

Stroke: 190 mm

Height adjustment: 100 mm

Gearbox – on-load speed: 1. Step 250 rpm 2. Step 450 rpm

Power consumption: 1.200 W

Voltage: 230 V 50/60 Hz 110 V 50/60 Hz

Magnetic holding force: 12,000 N

Tool-Force (10 mm): 3,500 N

Min. material thickness: 6 mm

Magnetic base: 92 x 220 mm

Weight: 15.0 kg



Oil bath gearbox



Stepless adjustment

Self-adjusting guide



Soft-touch grips

Cord length 5 m



Permanent magnet


ManufacturerAlfra GmbH
ModelRB 50B (230V)
Tappingwith tapping attachment
Cutting depth50.0 mm
Stroke190 mm
Height adjustment100 mm
Power consumption1.200 W
Magnetic holding force12,000 N
Tool-Force (10 mm)3,500 N
Min. material thickness6 mm
Magnetic base92 x 220 mm
Weight15.0 kg