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LATHES, ENGINE, GAP, Sliding Bed

20.25" x 80" Summit #20-4X80, engine lathe, 20" 4-Jaw chuck, 11.5-1400 RPM, steady rest, clnt, tpr attach, new, #071857

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General Specifications


Swing: 20.2"
Centers: 80.0"
Manufacturer: Summit
Model: 20-4X80
Stock #: 071857
Price: Request a Price

Dealer Information


Sominn Machinery Sales
210 South St SE
Dodge Center, MN 55927
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Contact: J.J. Francis
Tel: 800-770-5638
Fax: 507-374-6824
Email: jj@sominn.com
  
Gold Level Dealer Since 1991
Website: www.sominn.com

View our Equipment Listings

Detailed Product Description


SUMMIT (NEW) MODEL 20-4-80 ENGINE LATHE



CAPACITY

20-1/4" SWING OVER BED

11-7/8" SWING OVER CROSS SLIDE

27-5/8" SWING OVER GAP

15" GAP

8-3/8" GAP IN FRONT OF FACEPLATE



WORKPIECE WEIGHTS

400 LBS AT THE HEADSTOCK

2,000 LBS BETWEEN CHUCK AND TAILSTOCK

4,000 LBS CHUCK & TAILSTOCK WITH STEADY REST



HEADSTOCK

15 SPINDLE SPEEDS 11.5-1400 RPM

4-1/8" HOLE THROUGH SPINDLE

D1-8 SPINDLE NOSE

MT#6 HEADSTOCK CENTER



QUICK CHANGE GEARBOX

64 THREADS PER INCH 1/4 - 60

64 METRIC THREADS 0.5 - 120

64 MODULE THREADS 0.125 - 30

64 DIAMETRAL PITCH 1 - 240

124 LONGITUDINAL FEEDS 0.00145 - 0.44474

56 CROSS FEEDS 0.0007 - 0.22237

2" LEADSCREW DIAMETER 2 TPI

1" FEED ROD DIAMETER



CARRIAGE AND APRON

11-3/8" CROSS SLIDE TRAVEL

5-3/8" COMPOUND REST TRAVEL

0.020 GRADUATION OF APRON HANDWHEEL

0.002 GRADUATION OF CROSS SLIDE HANDWHEEL



TAILSTOCK

9-1/2" SPINDLE BARREL TRAVEL

3-1/2" SPINDLE BARREL DIAMETER

MT#5 CENTER TAPER

TWO SPEED 1:1 4:1



BED

15-3/4" WIDE

16-7/8" DEEP

42-48 BED HARDNESS (ROCKWELL C)



TAPER ATTACHMENT

 /- 10 DEGREES OF TAPER

15-3/4" MAXIMUM TURNING LENGTH PER SETTING



MOTORS

10 HP MAIN

1/8 HP COOLAND PUMP



STEADY AND FOLLOW REST

1/2" - 6-1/8" STANDARD STEADY REST

5" - 11" EXTRA CAPACITY STEADY REST

1/2" - 7-7/8" FOLLOW REST



FEATURES

INCH AND METRIC THREADS WITH SINGLE SWITCH LEVER

CUTS MOST INCH/METRIC THREADS W/O GEAR CHANGE

HARDENED AND GROUND BEDWAYS

FORCED LUBE TO HEADSTOCK, CARRIAGE AND BEDWAYS

MECHANICAL DISC CLUTCH

REMOVAVBLE GAP

PRECISION 3-BEARING SPINDLE

CROSSFEED AND THREADING SAFETY INTERLOCK

FEED REVERSING AT THE APRON

4-WAY RAPID TRAVERSE

SINGLE LEVER CONTROL FOR FEEDS AND SPEEEDS

2-SPEED TAILSTOCK



ACCESSORIES INCLUDED

STANDARD STEADY REST

EXTRA CAPACITY STEADY REST WITH ROLLERS

FOLLOW REST

THREAD DIAL

COOLANT SYSTEM

TAPER ATTACHMENT

12" 3-JAW CHUCK WITH 2-PIECE JAWS

CARRIAGE STOP

WORK LIGHT

FULL LENGTH SPLASH GUARD

SERVICE WRENCHES AND SPANNERS



OPTIONS INCLUDED

12" STEEL BODY PRECISION CHUCK UPGRADE

20" SEMI-STEEL 4-JAW CHUCK

ALORIS QUICK CHANGE TOOL POST WITH HOLDERS

NEWALL 2-AXIS DIGITAL READOUT - INSTALLED