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Main page » Metal » Bernardo drilling machine » Bernardo gear drilling machine » Gearhead drills with stepless speed Bernardo GB 50 NC Vario












Gearhead drills with stepless speed Bernardo GB 50 NC Vario
The GB 50 NC Vario column drilling machine comes with stepless speed setting, allowing ideal adjustment of cutting speed to each workpiece. The solid, large construction of this model attracts primarily professional engineers as well at the machine constructions or in workshops.
Scope of delivery Gearhead drills with stepless speed Bernardo GB 50 NC Vario
MT- 3 / 1
- Motoric table stroke
- Coolant device
- Electromagnetic spindle feed
- Automatic tool release device
- Thread cutting device
- LED machine light
- Initial filling with Shell Tellus 46
- Digital speed indication
- Digital drill depth indication
- Height adjustable protective cover
Features Gearhead drills with stepless speed Bernardo GB 50 NC Vario
- Motorized table height adjustment included
- 6 automatic drill feeds are controlled by electromagnetic clutch
- Solid, grey cast iron, surface treated drill table can be tilted from -45º to +45º
- Polished base features T-slots for clamping of larger workpieces
- Guaranteed concentricity of ≤ 0.02 mm, measured at spindle
- Automatic tool release device and tapping device as standard equipment
- Smooth gear wheels, in oil bath, allow for a smooth run
- Solid, polished steel column, heavy-duty design
- Membrane keyboard ensures user-friendly operation
Technical details Gearhead drills with stepless speed Bernardo GB 50 NC Vario
Drilling capacity in steel | 50 mm |
Drilling capacity in cast iron | 60 mm |
Thread cutting max. | M42 |
Drill chuck | 1 - 13 mm / B 16 |
Morse taper | MT 4 |
Spindle speeds / 2 steps | 50 - 316 / 316 - 2200 rpm |
Feed range | 0,08 / 0,12 / 0,17 / 0,24 / 0,35 / 0,50 mm/rev. |
Distance spindle to column | 360 mm |
Distance spindle to table max. | 575 mm |
Distance spindle to base | 1165 mm |
Spindle stroke | 220 mm |
Column diameter | 180 mm |
Table size / T-Slot size | 570 x 480 mm / 14 mm |
Working surface of base | 435 x 445 mm |
Motor power | 3,0 kW |
Machine dimension (W x D x H) | 750 x 950 x 2380 mm |
Weight approx. | 575 kg |