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Machinery Photo Index
Manufactured/Badged by:
Atlas Press Co.
Kalamazoo, MI

Machine Specifications
Machine Class: Wood Working Machinery & Metal Working Machinery
Machine Type: Drill Press
Machine Size: 12¾"
Submitted By: Mike Fendley
Machine Specifications
Description/Model: 620
Date of Manufacturer: 1950s
Serial Number: 000227
Last Updated 2/11/2013 6:29:49 AM

Comments:
Acquired off C-List for $40. Included the stand, double shaft 3/4hp Dayton motor, & machinist made steel drill press vise. Usable as purchased but I cleaned, painted, and polished it up. I also installed a single shaft Baldor 3/4hp motor. The model 620 bench top is similar to an Atlas Model 54, since Atlas built the Power King line (see ad below.) Capacity: 0-1/2” Jacobs 6A, can drill to the center of a 12 3/4” disk, has 12 speeds, 240 to 7,650 rpm. I put a speed chart on the side of the motor. The slow speed attachment was machined and installed, but the original machine was not altered in any way. An aluminum plug with tightening wedge goes inside the column and the attachment is anchored to it. The model 620 has a ball bearing spindle. The 3/4 hp, Baldor ball bearing motor had a chewed up 5/8" shaft. It was disassembled and the armature was turned on a lathe to get it down to a usable 1/2" shaft for the multi-speed pulley. The power cord and a quick disconnect was added to the motor. The original switch from the press is then functional through the quick disconnect. This way the motor can be taken off to service it without any un-wiring / re-wiring. It lightens the load when moving the press as well. Although the press can run at all 12 speeds (including the 7,650 rpm speed) the highest 3 speeds are in all practicality not needed nor used. The other 9 speeds gives the press a wide range from drilling big holes in steel, to running a drum sander. It was a fun project.

Photo 1:

Comments: Front
Source: Canon SX20 is
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Photo 2:

Comments: Left Side
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Photo 3:

Comments: Right Side - Note speed chart
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Photo 4:

Comments: Slow Speed Attachment
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Photo 5:

Comments: Drilling 1" hole in 1/2" plate steel
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Photo 6:

Comments: Model 620 Catalog page
Source: off eBay item
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