Weka SR 75 / SR 75 S
Diamond Drill Motor for use with drillstands up to 900mmØ capacity
This advanced motor for core drills offers 7.5kW of power for a weight of only 19.5kg. Its SR (switched reluctance) motor is of steel and copper construction, very simple and robust in design, and with very low-wearing design of parts. The power is controlled by an in-built microcomputer, which allows constant control across the full speed range (six settings for higher working speeds + 3 additional lower speeds for trouble-free start-up). The motor is protected from current overload by thermal protection switches.
The 3 speed gearing of the SR 75 allows smooth and effortless changing between drilling diameters by adjusting speed and torque accordingly. A very high torque of 628Nm is available in first gear.
With these advanced features this machine can work for 300 hours non-stop, until its microprocessor controls indicate that a maintenance check is required. Complete with its aluminium casing and carrying handles, the SR 75 is very robust, thermally stable and so well cooled to IP 55 / EN 60 529 standards that even overhead drilling can be undertaken in complete safety.
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User-friendly electronic speed settings

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3 speed gear system for effortless operation

Technical Data
SR 75
Drilling Ø (mm) 150-900 Nominal Power (W) 7500 Output Power (W) 5700 Motor Speed 1 (1/min) 60/115/145 Motor Speed 2 (1/min) 80/160/250 Weight (kg) 19.5 Length (mm) 620 Voltage (V) 400 Tool Fixture 1¼" UNC/m Foot fastening Standard 4×M8 with groove 10 × 4,3 Decibel Level (dB(A)) 72 Vibration Level (m/s2) <2.5 STOCK CODE: DMC / WSR75 SR 75 S
Drilling Ø (mm) 85-630 Nominal Power (W) 7500 Output Power (W) 5700 Motor Speed 1 (1/min) 85/170/265 Motor Speed 2 (1/min) 120/240/375 Weight (kg) 19.5 Length (mm) 620 Voltage (V) 400 Tool Fixture 1¼" UNC/m Foot fastening Standard 4×M8 with groove 10 × 4,3 Decibel Level (dB(A)) 72 Vibration Level (m/s2) <2.5 STOCK CODE: DMC / WSR75S
Documentation