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which is fitted with soldered-on or welded-on segments impregnated with diamonds.
If necessary, the flushing water is extracted through a water collecting ring (4) by means of a suction unit.
The machine may not be used for a different purpose or with a different tool.
The DK42 (B,E)/DK52 (E) is splash-water proof and thus corresponds to the protection class IP 55.
The motor is water-cooled, i.e. the cooling and flushing water for the core bit flows through the cooling
spiral of the motor before being flushed through the core bit.
On proper use water can not enter the machine. Thus it is possible to drill overhead without any further
precautions.
In the DK42 (B,E)/DK52 (E) there is an additional low voltage circuit breaker integrated, i.e. after a break
of the mains, the machine does not start unintended after return of voltage.
3.1 Specifications
Machine type
Nominal voltage
Nominal current
Nominal power
Power output
Nominal frequency
Speed (full load)
Drill Ø in Concrete
Weight
Degree of water protection
Tool fixture
* Holes of more than Ø 300 mm can only be produced with particularly stable rigs and the use of heavy duty
dowels for fastening. Upward Ø 400 it is required to use particularly aggressive core bits with low specific
pressure and high concentricity.
** If the motor is prepared for 60Hz nominal frequency the data of speed increases and the data of drillØ
decreases by the factor of 1,2.
Operating data DK42 B (E)
Gear change position/Speed
Drill Ø concrete
Water volume approx.
Operating data DK42 BL (EL)
Gear change position/Speed
Drill Ø concrete
Water volume approx.
Operating data DK42 BS (ES)
Gear change position/Speed
Drill Ø concrete
Water volume approx.
Operating data DK52 (E)
Gear change position/Speed
Drill Ø concrete
Water volume approx.
Operating data DK52 S (ES)
Gear change position/Speed
Drill Ø concrete
Water volume approx.
DK42 (B,E)
V
400/3-
A
7,2
W
3900
W
3000
Hz
50
1/min 160/310/490 130/260/410 230/460/720
mm
70 - 400 *
kg
19
1/min
mm
l/min
1/min
mm
l/min
1/min
mm
l/min
1/min
mm
l/min
1/min
mm
l/min
DK42 BL (EL) DK42 BS (ES) DK52 (E)
400/3-
400/3-
7,2
7,2
3900
3900
3000
3000
50
50
90 - 500 *
50 - 300
19
19
IP 55
1 1/4" UNC
1/160
230 - 400
1,9 - 2,6
1/130
300 - 500
2,2 - 2,9
1/230
150 - 300
1,6 - 2,2
1/130
320 - 500
2,3 - 2,9
1/160
240 - 450
2 - 2,7
11
DK52 S (ES)
400/3-
400/3-
9,5
9,5
5200
5200
4000
4000
50
50
130/260/410 160/310/490
110 - 500 *
80 - 450 *
22,9
22,9
2/310
3/490
110 - 220
70 - 150
1,3 - 1,9
1 - 1,6
2/260
3/410
130 - 270
90 - 180
1,5 - 2,1
1,2 - 1,7
2/460
3/720
75 - 150
50 - 100
1,1 - 1,6
0,9 - 1,3
2/260
3/410
160 - 320
110 - 210
1,6 - 2,3
1,4 - 1,9
2/310
3/490
120 - 240
80 - 160
1,4 - 2
1,1 - 1,6
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