NEW SUMMIT 20-4 x 80A PRECISION ENGINE LATHE
Specifications
Capacities
Swing over bed 20”
Swing over cross slide 13 ¼”
Swing over gap 30”
Length of gap 11 ¾”
Length of gap in front of 4 jaw chuck 4 ¼”
Workpiece Weights
At the headstock 330 lbs.
Between centers 990 lbs.
Between centers w/ steady rest 1,760 lbs.
Headstock
Spindle speeds (no.) range RPM (12) 32-1500
Hole through spindle 4”
Spindle nose D1-8 Camlock
Headstock Center #5 MT
Quick Change Gearbox
Threads per inch (no.) range (45) 2 - 72
Metric threads (no.) range (42) .2 - 14
Module threads (no.) range (18) .3 – 3.5
Diametral Pitch (no.) range (21) 8 – 44
Longitudinal feeds (no.) range (32) .002” - .0400”
Cross feeds (no.) range (32) .001” - .0200”
Leadscrew (Dia) range (1.3/8”) 4 TPI
Feed rod diameter 1”
Carriage & Apron
Cross slide travel 11 ½”
Compound rest travel 5”
Graduation of apron handwheel .010”
Graduation of cross slide handwheel .002”
Tailstock
Travel of spindle barrel 6”
Diameter of spindle barrel 3”
Taper of center #5 MT
Bed
Width of bed 13”
Hardness of bed (Rockwell C) 44 - 50
Taper Attachment
Degrees of taper +/- 10 Degrees
Maximum turning length per setting 16”
Motors
Main Drive 10 HP
Coolant pump 1/8 HP
Steady and Follow Rest
Steady rest ½” – 5 ¾”
Follow rest 3/8” – 3”
Shipping Data
Overall width 44”
Overall height 65”
Overall length 134”
Weight 6,800 lbs
Standard Features
Big 4” thru hole
4 way rapid traverse
2 speed tailstock
4 position bed stop
Automatic lubrication system
Inch/metric threads w/single switch lever
Cuts most inch/metric threads without change gears
Hardened & ground bedways
Forced lubrication to the headstock, carriage
and bedways
Removable gap
Precision (3) bearing spindle
Included Accessories
Steady Rest
Follow Rest
Thread Dial
Coolant System
Taper Attachment
3 Jaw chuck
15-3/4" 4 Jaw chuck
Carriage stop
Work light
Full length splash guard
Chuck guard
Options
12” Steel Body Precision Chuck w/2 Piece Jaws in Lieu of Standard Chuck
20” Semi-steel 4 Jaw Chuck
20” Steel Body 4 Jaw Chuck w/2 Piece Reversible Jaws
Aloris Quick Change Tool Post w/Holders (2#1, 2#2)
Newall 2 Axis Digital Readout Installed
**Installation Assistance TBD
Electrics
220/440/3/60
FOR MORE INFORMATION: Call Terry at 973-497-7612