Description
High-torque electric gear reduction turns 14-Inch diamond barrels through cured foundation walls without motor stall. The ICS 3420W Electric Core Drill powers through thick rebar-laden concrete slabs using 3420W motor muscle. You crank the drill stand carriage down. The massive electrical current draw requires a dedicated circuit to prevent tripping power breakers during heavy downfeed passes.
Cast aluminum forms the three-speed transmission housing, dissipating gear friction heat during deep core runs. A high-output 3420W motor connects to 230V 1-Phase circuits, drawing 15.0 full-load amps to drive 3-Gear speeds at 230, 500, and 1030 RPM through an internal oil bath. The casing mounts standard dovetail brackets for direct drill stand attachment. The motor unit weighs 28.5 lbs, measuring 22 inches long by 7.5 inches wide for compact rig mounting.
Key Features of ICS 3420W
Contractors buy ICS 3420W core drills to bore large drainage and HVAC sleeves through post-tension slabs. The 3-Speed transmission delivers brute torque to keep large diamond bits cutting through steel rebar without stalling.
- High-output 3420W motor delivers massive torque to drive core bits up to 14-Inch diameter.
- Three-speed oil-bath gearbox provides 230, 500, and 1030 RPM to match varied bit sizes.
- Standard 1-1/4-Inch-7 threaded spindle fits industrial diamond core barrels without adapter sleeves.
- Mechanical safety slip clutch breaks rotational drive during bit jams to protect gear teeth.
- Electronic soft-start motor controls ramp up spindle rotation to prevent harsh startup electrical spikes.
- Integrated water swivel feeds water through the spindle center for clean wet concrete drilling.
- In-line PRCD ground fault circuit interrupter protects operators from electrical shock in wet slurry areas.
High Output Spindle Bench Metrics
Bench dynamometer strain testing proves the 3-Speed gearbox holds spindle speed at 218 RPM in first gear while drilling a 12-Inch diamond bit through 5000 PSI cured concrete with rebar. The internal mechanical slip clutch disengages at 54 foot-pounds of torque, protecting gear teeth when diamond segments strike solid steel rods. Current draw reaches 14.8 amps under heavy downthrust without thermal trip delays. Gearbox oil temperatures remain under 134 degrees Fahrenheit after 2-Hours of continuous wet coring duty in test bays.
Stand Mounting Field Usability Limits
The quick-clamp dovetail block locks onto drill stand carriages with rigid alignment. Never attempt handheld operation with this 3420W drill motor. The immense rotational torque will cause severe operator injury if a core bit catches on rebar, requiring an anchored drill stand rig for all drilling passes. Fasten the stand base down with concrete anchor drop-in bolts before starting work.
- Check transmission oil level through the inspection sight glass and replace gear oil every 12-Months.
- Flush core drill spindle water jackets with clean water after each slurry work shift.
- Inspect carbon motor brushes every 50 hours and replace worn brushes before commutator wear occurs.
Factory Warranty Standard Package Inclusions
ICS covers the 3420W core drill motor with a 1-Year commercial warranty covering manufacturer defects. The factory kit box delivers the drill motor, a dovetail mounting spacer, an inline PRCD interrupter cord, open-end spindle wrenches, and an operating instruction manual. Drill stand and bits sold separately.

