Weka SR38 - Specifications

15
The SR38/68/75 are fitted with a 3-speed gear box. Besides the three gear speeds, the motor can
additionally be operated in different speeds. Thus the different speeds according to the table below can
be selected.
The speeds of the SR25/65 are only changed via the motor, thereby six motor speeds can be chosen,
which can also be changed while drilling.
3.1 Specifications
Machine type SR25 SR25S SR38 SR38S SR 65 SR65S SR68 SR 75 SR75S
Nominal voltage V 230 400 3~
Nominal current A 16 15
Nominal power W 3700 7500
Output power W 2700 5700
Nominal frequency Hz 50-60 50-60
Nominal speeds 1/min 230 -
570
300 -
740
180 -
1370
340-
2580
140 - 305 260 - 560 205 - 1370 60 - 300 80 - 435
Drill Ø in concrete
approx.
mm 70 - 370 65 - 300 50 -
400
20-280 125 - 540 80 - 330 50 - 350 150 - 900 100 - 600
Weight kg 14,7 14,7 16 18,3 14,7 16 19,5
Protection class IP 55
Tool fixture 1 1/4" UNC, M33/3
Operating data SR25 Step 1 Step 2 Step 3 Step 4 Step 5 Step 6
Speed 1/min 230 280 340 410 490 570
Drill Ø concrete mm 200 - 370 170 - 310 140 - 260 110 - 210 100 - 180 70 - 150
Water supply l/min 1,4 -2,0 1,3 - 1,8 1,2 - 1,6 1,0 - 1,5 1,0 - 1,4 0,9 - 1,2
Operating data SR25 S Step 1 Step 2 Step 3 Step 4 Step 5 Step 6
Speed 1/min 300 360 430 530 630 740
Drill Ø concrete mm 160 - 300 130 - 240 110 - 200 90 - 160 75 - 140 60 - 120
Water supply l/min 1,3 -1,9 1,1 - 1,6 1,0 - 1,4 1,0 - 1,3 0,9 - 1,2 0,8 - 1,1
Operating data SR38 - Gear step 1
Motor step/Speed 1/min 1/180 2/220 3/260 4/320 5/380 6/440
Drill Ø concrete mm 400 310 255 210 175 150
Water supply l/min 2,0 1,8 1,6 1,4 1,3 1,2
Operating data SR38 - Gear step 2
Motor step/Speed 1/min 1/360 2/430 3/520 4/630 5/755 6/880
Drill Ø concrete mm 190 155 130 105 90 75
Water supply l/min 1,4 1,2 1,1 1,0 0,9 0,9
Operating data SR38 - Gear step 3
Motor step/Speed 1/min 1/560 2/670 3/810 4/980 5/1180 6/1370
Drill Ø concrete mm 120 100 80 70 55 40
Water supply l/min 1,1 1,0 0,9 0,8 0,7 0,6
Operating data SR38S - Gear step 1
Motor step/Speed 1/min 1/340 2/410 3/490 4/600 5/715 6/835
Drill Ø concrete mm 280 160 135 110 90 80
Water supply l/min 1,7 1,3 1,2 1,0 0,9 0,9
Operating data SR38S - Gear step 2
Motor step/Speed 1/min 1/680 2/810 3/970 4/1180 5/1410 6/1650
Drill Ø concrete mm 100 80 70 60 50 40
Water supply l/min 1,0 0,9 0,8 0,8 0,7 0,6
Operating data SR38S - Gear step 3
Motor step/Speed 1/min 1/1060 2/1260 3/1520 4/1840 5/2210 6/2580
Drill Ø concrete mm 60 50 40 35 30 20
Water supply l/min 0,8 0,7 0,6 0,6 0,5 0,4