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PM-1440BV v3 2020-10
Copyright © 2020 Quality Machine Tools, LLC
Section 2 FEATURES & SPECIFICATIONS
MODEL PM-1440BV Lathe
PM-1440BV Floor plan: approximate dimensions (not to scale)
General information
The PM-1440BV is a robust, heavy duty gap-bed lathe designed for day-in, day-out use in production and in the
larger model shop. It features a 2 HP motor with variable frequency single-phase/three-phase converter (VFD)
giving smoothly variable spindle speeds from 40 to 400 rpm and 220 to 1800 rpm. Power requirement is 220 Vac
1Ø.The lathe ships fully assembled, with foot brake, on cast iron stands (all-up weight 1800 lb).
The spindle has a 2-inch bore, and is unusually short — just 16-1/2 inches, ideal for through-spindle work such as
gunsmithing. Long service life is assured by high precision taper-roller spindle bearings, together with hardened
and ground bed ways, shafts and headstock gears. All gears in the machine are oil-bath lubricated.
A saddle-feed gearbox, together with a set of external change gears, provides for a full range of UNC and UNF
threads from 4 to 56 TPI, and metric threads from 0.4 to 7 mm pitch.
In addition to the leadscrew for thread-cutting operations the saddle-feed gearbox drives an independent feed shaft
that powers both the saddle and cross-slide. A friction clutch allows the saddle to be stopped precisely at any point
along the bed. The VFD comes with an electrical braking system, triggered by the footbrake, that stops the spindle
almost instantly, even at the highest speeds. A circulating coolant system is installed in the right hand stand cabinet.
