Belts for Small Machines (www.sdp-si.com)

Belts for Large Machines (www.kaman-ind-tech.com)

Using a spindle motor inverter to control a three phase spindle
motor is the way to go! You’ll get true programmable spindle
speed and on-the-fly spindle speed override. On a lathe, the
inverter combined with a spindle encoder allows you to utilize
constant surface speed machining for superior finishes and
tool life.

We have used a whole bunch of different types of inverters over the
years, and it is hard to beat the Hitachi SJ100 series. They
are available in a wide range of sizes, from 1/4 HP to 10
HP.

The SJ100 can also run on single phase 220, which eliminates the need for a problematic phase converter!

Hitachi SJ100 inverters are available at www.automationdirect.com.

Hitachi part numbers and approx. cost for common sizes.

SJ100-015NFU SJ100, 2 HP DRIVE,230V $365.00

SJ100-022NFU SJ100, 3 HP DRIVE,230V $435.00

SJ100-037LFU SJ100, 5 HP DRIVE,230V $445.00

SJ100-055LFU SJ100, 7.5 HP DRIVE,230V $728.00

SJ100-075LFU SJ100, 10 HP DRIVE,230V $975.00

Elrod Machine:

www.elrodmachine.com

(928) 526-9032

Ballscrew conversion kits and motor mounts for Bridgeport knee mills and Bridgeport clones.

Hiwin Techincal Corp:

www.hiwin.com

Ballscrew kits for knee mills and other applications.