7PM-1440BV v3 2020-10 Copyright © 2020 Quality Machine Tools, LLC
Dimensions, approximate overall, incl. stand
Width 71-1/2 in. x Height 51 in. x Depth 31 in. (full range
cross slide motion)
Footprint: 71-1/2 in. wide x 24 in. deep
Bed length, excluding headstock: 54 in.
Spindle centerline to oor: 46 in.
Weight, approximate:1800 lb net
Power requirement 220 Vac, 60 Hz, 1Ø, 12A max
Motor 2 HP, 3Ø (1Ø to 3Ø conversion in VFD)
Work envelope
Headstock center to tailstock center 40 in. max
Swing over bed 14 in. diameter
Swing over cross slide 8.81 in. diameter
Swing over gap 18.74 in. diameter
Gap insert length 8-3/16 in.
Spindle face to tailstock quill face 43-1/4 in. max
Saddle travel along bed 38-1/2 in.
Cross-slide travel 6-1/4 in.
Compound (top slide) travel 3-3/4 in.
Drive system
VFD drive with 2-speed gearbox)
Low range, rpm 40 to 400
High range, rpm 220 to 1800
Carriage drive, thread cutting Leadscrew 8 tpi
Inch threads Choice of 34, from 4 to 56 TPI
Metric threads Choice of 26, from 0.4 mm to 7 mm pitch
Saddle drive, turning operations Choice of feed rates from 0.002 to 0.0548 in./spindle rev
Cross slide drive, facing operations Choice of feed rates from 0.0007 to 0.0187 in./spindle rev
Spindle
Chuck/faceplate attachment D1-5 Camlock
Internal taper MT6
Spindle bore 2 in. diameter
Spindle length, LH end to chuck mounting face 16-1/2 in. overall
Spindle length, LH end to chuck face (typical) 19-1/4 in. approx.
Tailstock
Internal taper MT4
Quill travel 4 in.
Work holding (typical)
3-jaw chuck, 8 in.
4-jaw chuck, 8 in.
Faceplate
Center rest (steady rest) capacity Up to 3 in. diameter
Follower rest capacity Up to 1 in. diameter
PM-1440BV SPECIFICATIONS
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