ALFRA Rotabest – RB 50 B RL-E

The RB 50 B RL-E is part of our professional series with right/left rotation function. These versatile tools for metalworkers create ideal conditions for core drilling, tapping, countersinking and twist drilling.

The motor has a soft start, full-shaft electronics and overload protection. Thanks to the electromagnet with 16,000 N holding force, you can drill extremely precisely and safely. Soft-touch handles and the infinitely adjustable carriage make working with the RB 50 B RL-E uncomplicated and pleasant, as does the self-explanatory operation.

The ALFRA Rotabest^® - RB 50 B RL-E can be combined with core drills up to a diameter of 50 mm, with step drills up to a diameter of 40 mm and with twist drills with a diameter of up to 20 mm.

You can use taps to cut threads for screws from M3 to M20 (using a tapping attachment); we recommend the use of a tapping chuck for screws from M3 to M14.

Technical details

• Core drill dimensions : Ø 12,0 - 50,0 mm
• Cutting depth: 50,0 mm
• Twist drill: Ø 1.0 bis 16.0 mm with quick-release chuck MT2 up to Ø 20.0 mm with MT2 DIN 345 direct
• Counterboring: Ø 10,0 - 40,0 mm
• Tapping: 

with tapping chucks: M3 - M14
with tapping attachment: M3 - M20

• Arbor: MT2
• Stroke: 170 mm
• Height adjustment: 100 mm
• Gearbox - on-load speed:

right/left
1. Step 100 - 250 rpm
2. Step 180 - 450 rpm

• Power consumption: 1.200 W
• Voltage:

230 V 50/60 Hz
110 V 50/60 Hz

• Magnetic holding force: 16,000 N
• Tool-Force (10 mm)*: 3,800 N
• Min. material thickness: 10 mm
• Magnetic base: 92 x 238 mm
• Weight: 16.0 kg

Art. Nr. 18612.NKO