B-LINE - Core drilling machines with electromagnet

The products at a glance

	ALFRA Rotabest® – RB 35 B	ALFRA Rotabest® – RB 35/50 B Piccolo	ALFRA Rotabest® – RB 50 B	ALFRA Rotabest® – RB 80 B	ALFRA Rotabest® – RB 130 B
Prod.-No.	230 V: 18400 \| 110 V: 18400.110	230 V: 18401 \| 110 V: 18401.110	230 V: 18451 \| 110 V: 18451.110	230 V: 18781 \| 110 V: 18781.110	230 V: 18645
Core drill dimensions	Ø 12.0 - 35.0 mm	Ø 12.0 - 35.0 mm	Ø 12,0 - 50,0 mm	Ø 12,0 - 80,0 mm / Ø 20,0 - 50,0 mm (cutting depth 110 mm)	Ø 12,0 - 130,0 mm / Ø 20,0 - 50,0 mm (cutting depth 110 mm)
Cutting depth	50.0 mm	50.0 mm	50,0 mm	50,0 mm / 110,0 mm	50,0 mm / 110,0 mm
Twist drill	Ø 1.0 - 13.0 mm DIN 1897 short	Ø 1.0 - 13.0 mm DIN 1897 short	Ø 1.0 to 16.0 mm with quick-release chuck MT 2 up to Ø 20.0 mm with MT2 DIN 345 direct	Ø 1.0 - 16.0 mm with drill chuck up to Ø 32.0 mm with MT3 DIN 345	up to Ø 45.0 mm with MT4 DIN 345
Counterboring	Ø 10.0 - 40.0 mm	Ø 10.0 - 40.0 mm	Ø 10,0 - 40,0 mm	Ø 10,0 - 55,0 mm	Ø 10,0 - 80,0 mm
Tapping	-	-	with tapping attachment: M3 - M20	with tapping attachment: up to M30	with tapping attachment: up to M42
Arbor	19 mm Weldon shank	19 mm Weldon shank	MT2	MT3	MT4
Stroke	120 mm	129 mm	190 mm	190 mm	230 mm
Height adjustment	-	86 mm	100 mm	100 mm	100 mm
Gearbox - on-load speed	450 U/min.	450 rpm	1. Step 250 rpm 2. Step 450 rpm	1. Step 110 rpm 2. Step 175 rpm 3. Step 245 rpm 4. Step 385 rpm	1. Step 30 - 80 rpm 2. Step 50 - 120 rpm 3. Step 130 - 350 rpm 4. Step 210 - 550 rpm
Power consumption	1.100 W	1,100 W	1.200 W	1.800 W	2.500 W
Voltage	230 V 50/60 Hz 110 V 50/60 Hz	230 V 50/60 Hz 110 V 50/60 Hz	230 V 50/60 Hz 110 V 50/60 Hz	230 V 50/60 Hz 110 V 50/60 Hz	230 V 50/60 Hz
Magnetic holding force	10,000 N	10,000 N	12,000 N	16,000 N	33,000 N
Tool-Force (10 mm)*	2,100 N	2,100 N	3,500 N	4,000 N	5,000 N
Min. material thickness	6 mm	6 mm	6 mm	10 mm	10 mm
Magnetic base	70 x 185 mm	70 x 185 mm	92 x 220 mm	92 x 220 mm	90 x 400 mm
Weight	10.6 kg	11.5 kg	15.0 kg	21.8 kg	37.0 kg
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