Compact bench motors for powering case trimmers etc.

[Eric the Red]

I have been trawling t'internet looking for a 240v compact motor to use as a power source for case trimmers etc. (so to put a chuck on or similar) on the reloading bench. Something around 1800rpm (preferably variable) - but cannot see anything - perhaps using wrong search terms?
I see the Henderson's and the K&M variants at staggering money and I see pillar drills are an option - but feels like complete overkill.

Anybody else looking into this and come up with any cute solutions?

 

[AlexD]

I have been trawling t'internet looking for a 240v compact motor to use as a power source for case trimmers etc. (so to put a chuck on or similar) on the reloading bench. Something around 1800rpm (preferably variable) - but cannot see anything - perhaps using wrong search terms?
I see the Henderson's and the K&M variants at staggering money and I see pillar drills are an option - but feels like complete overkill.

Anybody else looking into this and come up with any cute solutions?

Try Aliexpress.com. E.g. 36.18BGN 15% OFF|220V 250W 400W 500W DC Permanent Magnet Motor Slow Speed Low Noise Motor Pure Copper Wound Double Bearing CW CCW| | - AliExpress. This particular one is DC, hence the bridge rectifier sitting next to it in the picture to go from your mains to the DC input. LOTs of others on AliExpress are AC but usually use brushes, which I prefer to avoid.

Single phase motors are cheap. £13 for a nice permanent magnet single phase 500W motor above.

A brushless servo motor with controller is only £50: 122.76BGN 5% OFF|Brushless Servo Motor 550w-750w-1100w 220v Knob Speed Control Belt Sander Woodworking Machinery Letter Saw Lathe - Tool Parts - AliExpress

Or a spindle motor, £50, with PSU and mount: 59.48BGN 70% OFF|Yofuly 500W Air Cooled Spindle CNC Spindle Kit 500W Spindle + Motor Power Supply + 52mm Clamps for CNC Engraving Malling Machine| | - AliExpress

 

[jthyttin]

Something around 1800rpm (preferably variable)

RPM sounds high. Cordless drills are usually about 0-500rpm at first gear and 0-1500rpm at second. The second gear is usually way too high. Doesn't matter with something like trimming (definite stop) but you will have to be very daft with chamfer etc.

You could always use a hand drill, there's usually a collar to mount them, at least on models that accept side handle. If you butcher one you can modify the trigger to foot pedal. Or if you're satisfied with single speed, adjust the wheel on the trigger and then put some kind of clamp on the trigger to activate.

 

[Jon2712]

I’ve just built a drive for exactly the same thing, based on a PMA Tool design. Built on a 24vdc motor with a variable speed driver. I’ll try and attach a vid..

 

[Andy RV]

This came up recently and a chap posted his set up using a sewing machine motor with foot controller.

 

[mealiejimmy]

I have been trawling t'internet looking for a 240v compact motor to use as a power source for case trimmers etc. (so to put a chuck on or similar) on the reloading bench. Something around 1800rpm (preferably variable) - but cannot see anything - perhaps using wrong search terms?
I see the Henderson's and the K&M variants at staggering money and I see pillar drills are an option - but feels like complete overkill.

Anybody else looking into this and come up with any cute solutions?

Forget about 240v motors, use a geared DC motor and an E Bay DC motor speed controller that runs from 240V
The choices of power and speed in DC motors is huge

Cheers

Bruce

 

[Jon2712]

Can’t attach a vid but here’s a couple of pics.

 

[Tim.243]

I have been trawling t'internet looking for a 240v compact motor to use as a power source for case trimmers etc. (so to put a chuck on or similar) on the reloading bench. Something around 1800rpm (preferably variable) - but cannot see anything - perhaps using wrong search terms?
I see the Henderson's and the K&M variants at staggering money and I see pillar drills are an option - but feels like complete overkill.

Anybody else looking into this and come up with any cute solutions?

Sewing machine motor

https://www.google.com/aclk?sa=l&ai=DChcSEwiw_POjzbWEAxXAxkwCHeacDYMYABANGgJ0bQ&ase=2&gclid=CjwKCAiA8sauBhB3EiwAruTRJiuE6I5qtiNdyjHwD8DhBxc29lE8gshlVCmlWr5fPCgD8phUm9TCahoCrNUQAvD_BwE&ei=0VfSZapDjYv27w-VhKPABQ&sig=AOD64_2bg7T8EW0JbZj4mA8NsYs5hWPWbw&ctype=5&q=&nis=4&sqi=2&ved=2ahUKEwjq7-OjzbWEAxWNhf0HHRXCCFgQ9aACKAB6BAgIEDg&adurl=

 

[paul o']

I just use one of the many Makita's I have simple trigger hold lock and away I go. I may think of chopping one up as above and make one . add in a speed chuck
be something to do until the sun comes out for more than a hr

 

[trickie]

Something like this might work with a simple wooden jig fitment, chap as well (ish)

https://www.argos.co.uk/product/3282557?istCompanyId=a74d8886-5df9-4baa-b776-166b3bf9111c&istFeedId=c290d9a9-b5d6-423c-841d-2a559621874c&istItemId=irilplatm&istBid=t&&cmpid=GS001&_$ja=tsid:59157%7Cacid:804-872-0397%7Ccid:20330964438%7Cagid:%7Ctid:%7Ccrid:%7Cnw:x%7Crnd:18198552077919837629%7Cdvc:c%7Cadp:%7Cmt:%7Cloc:1006668&utm_source=Google&utm_medium=cpc&utm_campaign=20330964438&utm_term=3282557&utm_content=shopping&utm_custom1=&utm_custom2=804-872-0397&GPDP=true&gad_source=1&gclid=CjwKCAiA8sauBhB3EiwAruTRJtUksiN6NE2kEZiuwijupqx9_KIO53gM_xnm5lEKCTDsX3HcR9XKZRoCTi4QAvD_BwE&gclsrc=aw.ds

 

[Eric the Red]

RPM sounds high. Cordless drills are usually about 0-500rpm at first gear and 0-1500rpm at second. The second gear is usually way too high. Doesn't matter with something like trimming (definite stop) but you will have to be very daft with chamfer etc.

You could always use a hand drill, there's usually a collar to mount them, at least on models that accept side handle. If you butcher one you can modify the trigger to foot pedal. Or if you're satisfied with single speed, adjust the wheel on the trigger and then put some kind of clamp on the trigger to activate.

I am going on nothing more than that the speed I have quoted is what Henderson's have specified for their trimmer. As a specialist tool I figured they'd have good reason for it.

 

[fizzbangwhallop]

Sewing machine motor with a foot control…..an old breadboard and a baking tray.

Nylon pulley from eBay threaded accordingly and finger pressure on the outside of that to engage the cutter with the case neck… the alignment of the belt pulls it away when you release the pressure.

Cheers

Fizz

 

[Jon2712]

I am going on nothing more than that the speed I have quoted is what Henderson's have specified for their trimmer. As a specialist tool I figured they'd have good reason for it.

The speed that Henderson quotes is for a drill to fit on the Henderson’s gearbox. The actual speed of the cutter head will be way slower. For neck turning they recon 180 rpm to stop heat buildup.

 

[Tim.243]

Sewing machine motor with a foot control…..an old breadboard and a baking tray.

Nylon pulley from eBay threaded accordingly and finger pressure on the outside of that to engage the cutter with the case neck… the alignment of the belt pulls it away when you release the pressure.

Cheers

Fizz

View attachment 352069View attachment 352070

Very neat...I am sure I posted that use to Eric lol
@Eric the Red

 

[Eric the Red]

The speed that Henderson quotes is for a drill to fit on the Henderson’s gearbox. The actual speed of the cutter head will be way slower. For neck turning they recon 180 rpm to stop heat buildup.

Not how I read this: The Gen 3 powered case trimmer uses a powerful single speed 115v DC motor. The DC motor is extremely smooth and quiet and powers the spindle at around 1700rpms. on this page GEN 3 POWERED CASE TRIMMER 115v Motor (US and Canada Only) – Henderson Precision which is their powered version.
Not saying anyone is wrong - but feeling I need to justify my position. I realise speed is an issue as I had a really neat solution using my Sorby Pro Edge - but that is just too quick.

 

[jthyttin]

Sorby advertises 440 meters per minute. I found advertisements for the belts that say they're 50x785mm. That would give 560rpm at the spindle that drives the belt.

From Henderson page I read that the motor is running at 1700rpm for the best torque. It's quite clear from the pics that there's reduction gear between the motor and cutter spindle.

 

[Eric the Red]

Sorby advertises 440 meters per minute. I found advertisements for the belts that say they're 50x785mm. That would give 560rpm at the spindle that drives the belt.

From Henderson page I read that the motor is running at 1700rpm for the best torque. It's quite clear from the pics that there's reduction gear between the motor and cutter spindle.

Is that not 560rpm of the belt, as opposed the spindle?

Anyway, this is somewhat diversionary from the main thrust of my post, so would prefer to keep on track if that's OK.
There are some ideas to follow, so thanks to those who have provided.

 

[Klenchblaize]

Can’t attach a vid but here’s a couple of pics.

Lovely bit of kit and even colour coded to match your RCBS kit? Just one suggestion: Consider changing the lock nuts for dome heads.

K

 

[jthyttin]

Is that not 560rpm of the belt, as opposed the spindle?

Yeah, sorry had a brain fart. Looking at pictures, the motor might run about 2500-3000rpm (the spindle being around 5cm diameter thus 15cm circumference.

Anyway, if you're using 3way cutter or any other implement that is mechanically restricted not to cut too much, you might get away with 1800rpm. And of course it would make cutting faster. But with any hand controlled tools like chamfering, lower RPM makes for more consistent results and helps not to ruin brass.

If you have hand drill, find out the RPM and stuck some sacrificial brass to the chuck and try it out?

 

[nun_hunter]

I made a case prep station from 12v 400rpm geared motors off eBay and a variable DC controller. They have plenty of torque and was considerably easier to build using individual motors rather than one bigger motor and lots of gearing to power everything.

I used a tap and die set to thread some steel tube to attach the various case prep tools so I can swap them around depending on what I'm doing.