Specifications:
The ALFRA Rotabest® RB 50 B is a metal core drilling machine available in two voltage options: 230 Volt and 110 Volt. It supports core drill dimensions ranging from Ø12.0 to Ø50.0 mm with a cutting depth of 50.0 mm. Twist drills can be used from Ø1.0 to 16.0 mm with a quick-release chuck MT2, and up to Ø20.0 mm with MT 2 DIN 345 direct. Counterboring is possible from Ø10.0 to 40.0 mm, and tapping with a tapping attachment is supported for M3 to M20. The machine features a stroke of 170 mm and height adjustment of 100 mm.

Performance:
The RB 50 B has a 2-speed gearbox with load speeds of 250 rpm and 450 rpm. It consumes 1,200 W of power and operates at voltages of 230 V or 110 V with a frequency of 50/60 Hz. The magnetic adhesion strength is 16,000 N, and the tool force at 10 mm is 3,800 N. The magnetic base measures 92 x 238 mm, and the machine weighs 16.0 kg.

Features:
The motor includes an oil bath gearbox, and the slides are infinitely adjustable with a self-adjusting guide. The operation is enhanced with soft-touch grips and an ergonomic switch keyboard. The cable length is 5 meters, and the magnet includes metal rings for performance and weight optimization.

Scope of Delivery:
The package includes the RB 50 B metal core drilling machine, a coolant device, an MT2 tool holder with internal cooling, a carrying case, drill spray, a seat belt, and operating instructions. Additionally, one core drill is included free of charge.