Gang drill VR 4/20 B

Primary range of drilling machines are VS32B and range 20 - it means V20B - bench design, VS20B - pillar design and VR4/20B - gang design - set of four drilling machines on one table. Both mark of these machines: they combine thein havy duty frame with operational reliability. They are designed for drilling, reaming and thread cutting in both single-part and series production. The frame is formed by a cast-iron baseplate with a firm steel pillar. The headstock and the bracket with a revolving angular table are vertically adjustable and revolving 360° on the pillar.

The drive of gearbox is realised by means of a V-belt which can be tightened. The machina is eqiupped with 15 speed steps. The speed changes are realised by two hand revers in combination with the V-belt. The four power feeds are shifted by a hand lever, switched on and off by the lever of the automatic coupling. The automatic feed disconnection is set in motion with blunting or breaking the tool. The feed may also be switched off manually any time. The drilling depth is set on a milimetr scale. The spindle seeated in ball bearings returns into the upper position by a spiral spring.

The headstock is lubricated by a circulation pump installed in the headstock. The angluar table enables camping of the workpiece in the vertical as well as horizontal plane. The electric equipment is concetrated in a box on the side of the machine. It protects the motor against short-circuit and the whole machine against the spontaneous start after a voltage loss. The electric equipment complies with the EU-regulations.

The cooling liquid is supplied to the workplace by the electric pump situated in the foot of the machine. The liquid circulates in a closed circuit and is controlled by a cock.


VR 4/20 B
Drilling diameter 600 Mpa mm 20
Number of MORSE spindle
Drilling depth mm 160
Cone in MORSE spindle MORSE 3
Drilling depth indicator
Drilling depth backstop
precision setting
Clamping table area - horizontal mm 2000 x 460
- vertical
T - grooves
3 x w 14, spacing 112
Dist. from spindle end to clamp. table area max/min mm 500 / 150
Spindle reach mm 250
Diameter of column mm 110
Headstock vertical movement mm 350
Vertical movement of bracket with table mm -
Vertical movement of table and headstock
geard rack
Spindle speed
- number of steps
- range r.p.m. 71 - 2800
Direction spindle speed
right - left
Primary transmission
by hand / mechanical
- number of steps
- range mm/r. 0,08 - 0,32
Clutch type
Maximum axial pressure on spindle N 4000
Motor V 3 x 400
Electric motor speed/output r.p.m/kW 1400 / 1,5
Coolant equipment
cont. 20 l, output 30 l/min
Maximum machine dimensions W x L x H mm 2120 x 1030 x 2115
Machine weight (net/ gross) kg 2425 / 2470
Package (crating) dimensions W x L x H mm 2400 x 1210 x 2400
Gang drill VR 4/20 B