Alfa Main Catalogue Pagina 84
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ALFRA ROTABEST® CORE DRILLING MACHINES WITH ELECTROMAGNET B-LINE Ø 35 mm Page Prod.-No. Core drill dimensions Ø 130 Ø 80 Ø 50 RB 35 B RB 35/50 B PICCOLO RB 50 B RB 80 B 90 - 91 92 93 94 230 V: 18400 110 V: 18400.110 230 V: 18401 110 V: 18401.110 230 V: 18451 110 V: 18451.110 230 V: 18481 RB 130 B 95 110 V: 18481.110 230 V: 18646 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) 50.0 mm 50.0 mm / 110.0 mm 50.0 mm / 110.0 mm 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 Ø 12.0 - 35.0 mm Ø 12.0 - 35.0 mm 50.0 mm 50.0 mm Ø 1.0 - 13.0 mm DIN 1897 short Ø 1.0 - 13.0 mm DIN 1897 short 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 - - 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 - 86 mm 100 mm Cutting depth Twist drill Counterboring Tapping Height adjustment Gearbox – on-load speed Power consumption 450 rpm 450 rpm Ø 12.0 - 50.0 mm 1. Step 2. Step 250 rpm 450 rpm 100 mm 1. 2. 3. 4. Step Step Step Step 110 175 245 385 100 mm rpm rpm rpm rpm 1. Step 2. Step 3. Step 4. Step 30 50 130 210 - 80 120 350 550 rpm rpm rpm rpm 1,100 W 1,100 W 1,200 W 1,800 W 2,500 W 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 6 mm 6 mm 6 mm 10 mm 10 mm 70 x 185 mm 70 x 185 mm 92 x 220 mm 92 x 220 mm 90 x 400 mm 10.6 kg 11.5 kg 15.0 kg 21.3 kg 37.0 kg - - ✔ - ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ - Soft-touch grips ✔ ✔ ✔ ✔ ✔ Ergonomic switch keyboard ✔ ✔ ✔ ✔ ✔ Cord length 5 m ✔ ✔ ✔ ✔ ✔ - ✔ ✔ ✔ ✔ ✔ Voltage Min. material thickness Magnetic base Weight Motor Oil bath gearbox Mechanical slipping clutch Slide Stepless adjustment Self-adjusting guide Operation Magnet Sensor/LED Metal rings ✔ * Lift-off force directly on the tool/core drill machine 84
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