Photo Index - Delta Specialty/Delta Mfg. Co./Delta-Rockwell/Rockwell Intl. - 9" dual grinder

Machinery Photo Index

Manufactured/Badged by:
Delta Specialty/Delta Mfg. Co./Delta-Rockwell/Rockwell Intl.
Milwaukee, WI; Jackson, TN; Tupelo, MS

Machine Specifications
Machine Class:	Metal Working Machinery
Machine Type:	Grinder, Bench
Machine Size:
Submitted By:	William Richardson

Machine Specifications
Description/Model:	9" dual grinder
Date of Manufacturer:	1959
Serial Number:	124-4286
Last Updated	10/3/2023 7:55:55 PM

Comments:

This grinder was purch'd recently - Dec '19 in Syracuse, NY. Has seen little use over the 60 yrs since its manufacture. A water pot was purch'd separately for it, from an online auction source. It is wired for three phase, but has 208-220/440 v. options. More discussion about the grinder can be found here: http://www.owwm.org/viewtopic.php?f=77&t=210036&e=1&view=unread#unread

PDF ref: http://www.vintagemachinery.org/pubs/1141/20337.pdf

I should have purchased a VFD (Variable Frequency Drive) for this, but did not. Unfortunately, the grinder was plugged into an incorrect power source and burned up some windings. So the grinder is now non-operative, but the lights work. Since the spring of 2023 I was able to switch out the burned up three phase motor for a Delta single phase motor and grinding set up. I transferred the lighted eye shields to the new motor and we are back in business.

Photo 1: