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PM 728V-T v2 2020-10 Copyright © 2020 Quality Machine Tools, LLC
Section 2 FEATURES & SPECIFICATIONS
MODEL PM-728V-T Milling Machine
General information
The PM-728V-T is a robust “square column” mill with R8 spindle and continuously-variable spindle speed up to 4000 rpm. It is
designed for day-in, day-out use in the model shop. With a weight of 370 lbs it can handle far more than the typical machine of its
size. For precise control of cutter depth there is a worm-driven quill downfeed with graduated dial and built-in DRO, completely
independent of headstock elevation.
The reversible spindle runs in high-quality, deep-groove ball bearings enclosed in a robust quill with coarse (drilling) and ne
(milling) downfeed options. It is powered by a 1 HP (750 W) brushless dc motor. Spindle speed is continuously variable from
approximately 100 to 1500 rpm, low range, and 300 to 4000 rpm, high range. This is a gearless design with two-step pulleys on
motor and spindle coupled by a long-life ribbed belt. The headstock can be tilted 90
o
clockwise and counter-clockwise from the
vertical. Precision ground dovetailed ways for table and headstock ensure smooth, precise motion in all three axes: X = left/right
motion of table 19 in., Y = front/back motion of table 10 in., Z = headstock up/down, 16-1/4 in. (Installation of DRO scales on the
table and headstock may limit these numbers.)
PM-728V-T dimensions
41
30
32
76-1/2"
max
34-3/4
8-1/2"
3-1/4"
44-1/2"
max
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