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OPERATING INSTRUCTIONS - DIAMOND CORE DRILL SR35, SR75 (S)
Please read these instructions carefully before starting up the machine!
In the WEKA diamond core drilling machine you have an outstanding quality product with which you will
be very satisfied, provided you use it properly.
Specifications
Machine type SR 35 SR 75 SR75 S
Nominal voltage V 230 400 3~
Nominal current A 16 15
Nominal power W 3700 7500
Power output W 2700 5700
Nominal frequency Hz 50-60 50-60
Speed (full load)
Motor speed 1*
Motor speed 2
Motor speed 3
1/min
150/300/470
200/390/610
240/470/730
60/115/145
80/160/250
100/195/300
85/170/265
120/240/375
150/290/450
Drill Ø in concrete approx. mm 60 - 350 ** 150 - 900 ** 100 - 600
Weight kg 16 19
Degree of water protection IP 55
Tool fixture 1 1/4" UNC
* These gears are power-reduced.
** Holes of more than Ø 250 mm can only be produced with particularly stable rigs and the use of heavy
duty dowels for fastening.
SR35: Upward Ø 400 it is required to use particularly aggressive core bits with low specific pressure and
high concentricity.
SR75: Fix the machine only on an extremely stable drill rig and absolutely with 8 screws.
Please note that the machine develops a nominal torque of up to 700 Nm and that the torque can
increase up to 1000 Nm when the drill bits jams in the hole.
Operating data SR 35 - Motor speed 1 - auxiliary speed only for start drilling
Gear change position 1/min 1/150 2/300 3/470
Drill Ø concrete mm 250 - 350 130 - 250 80 - 160
water volume approx. l/min 1,9 - 2,7 1,3 - 1,9 1,1 - 1,5
Operating data SR 35 - Motor speed 2
Gear change position 1/min 1/200 2/390 3/610
Drill Ø concrete mm 190 - 380 95 - 190 65 - 125
water volume approx. l/min 1,6 - 2,3 1,2 - 1,7 1 - 1,3
Operating data SR 35 - Motor speed 3
Gear change position 1/min 1/240 2/470 3/730
Drill Ø concrete mm 150 - 300 80 - 150 50 - 100
water volume approx. l/min 1,4 - 2,2 1,1 - 1,4 0,9 - 1,2
Operating data SR 75 - Motor speed 1 - auxiliary speed only for start drilling
Gear change position 1/min 1/60 1S/85 2/115 2S/170 3/145 3S/265
Drill Ø concrete mm 500-800 400-700 250-500 220-500 200-350 140-250
water volume approx. l/min 2,5 - 3,7 2,6-3,4 1,8 - 2,5 1,9-2,9 1,3 - 2,1 1,5-2
Operating data SR 75 - Motor speed 2
Gear change position 1/min 1/80 1S/120 2/160 2S/240 3/250 3S/375
Drill Ø concrete mm 450-900 310-620 230-470 160-320 160-320 100-200
water volume approx. l/min 2,7 - 3,9 2,3-3,2 1,9 - 2,8 1,6-2,3 1,4 - 2,2 1,3-1,8
Operating data SR 75 - Motor speed 3
Gear change position 1/min 1/100 1S/150 2/195 2S/290 3/300 3S/450
Drill Ø concrete mm 380-770 39179 200-400 130-260 120-250 85-170
water volume approx. l/min 2,4 - 3,5 2-2,9 1,8 - 2,5 1,5-2 1,2 - 2 1,1-1,7
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