I've been banging my head against a wall these last couple of years because I just can't seem to find an appropriate electric drill for one of my machines. The machine in question is responsible for drilling 11/16" dia holes through 4" of plywood.
First, I started using Milwaukee drills such as these:
The problem with those drills is that the run at too low rpm (600, to be precise) for my application. They leave a very crappy finish in the drilled holes. I need a motor that runs at between 1500 and 4000 rpm. Anything in between is fine by me.
Then I tried these drills, which at first glance seem like the perfect device for my application:
The vendor claims 710W (about 1 HP) power at 2,800 rpm. But the drill quickly overheats and burns through its carbon brushes after a few hundred holes.
Now I'm beginning to think that perhaps it would be best if I could use a motor directly coupled to an industrial chuck mounted on heavy duty bearings instead of spending the rest of my days looking for a commercial drill that could fit my needs.
Any thoughts as to where I could find a 1HP, 1,800 rpm (or more) 220 VAC low diameter (slender) electric motor that I could use? @MaxHeadRoom
First, I started using Milwaukee drills such as these:
The problem with those drills is that the run at too low rpm (600, to be precise) for my application. They leave a very crappy finish in the drilled holes. I need a motor that runs at between 1500 and 4000 rpm. Anything in between is fine by me.
Then I tried these drills, which at first glance seem like the perfect device for my application:
The vendor claims 710W (about 1 HP) power at 2,800 rpm. But the drill quickly overheats and burns through its carbon brushes after a few hundred holes.
Now I'm beginning to think that perhaps it would be best if I could use a motor directly coupled to an industrial chuck mounted on heavy duty bearings instead of spending the rest of my days looking for a commercial drill that could fit my needs.
Any thoughts as to where I could find a 1HP, 1,800 rpm (or more) 220 VAC low diameter (slender) electric motor that I could use? @MaxHeadRoom