Description
Summit 20″ x 60″ Precision Engine Lathe
Inventory # 8057
Model: 20 x 60 B
European Quality Machine
Specifications:
Capacities:
Swing Over Bed: 20 1/4″
Distance Between Centers: 60″
Swing Over Cross Slide: 11 7/8″
Workpiece Weights:
@ the Headstock: 400 lbs.
Between Chuck and Tailstock: 2,000 lbs. (4,000 lbs. with Steady Rest)
Headstock:
Spindle Speeds: 11.5 – 1,400 RPM (15)
Hole Through Spindle: 4 1/8″
Spindle Nose: D1-8 Camlock
Headstock Center: #6 MT
Quick Change Gearbox:
Threads per Inch: 1/4 – 60 (64)
Metric Threads: .5 – 120 (64)
Module Threads: .125 – 30 (64)
Diametral Pitch: 1 – 240 (64)
Longitudinal Feeds: .00145 – .44474 (124)
Cross Feeds: .0007 – .22237 (56)
Leadscrew Range: 2 TPI (2″ Diameter)
Feed Rod Diameter: 1″
Carriage & Apron:
Cross Slide Travel: 12 1/2″
Compound Rest Travel: 5 3/8″
Graduation of Apron Handwheel: .020
Graduation of Cross Slide Handwheel: .002
Tailstock:
Travel of Spindle Barrel: 9 1/2″
Diameter of Spindle Barrel: 3 1/2″
Taper of Center: #5 MT
Two Speed: 1:1, 4:1
Bed:
Width of Bed: 15 3/4″
Depth of Bed: 16 7/8″
Hardness of Bed (Rockwell C): 42 – 48
Taper Attachment:
Degrees of Taper: +/- 10°
Max. Turning Length per Setting: 15 3/4″
Steady and Follow Rest:
Standard Steady Rest: 1/2″ – 6 1/8″
Extra Capacity Steady Rest: 5″ – 11″
Follow Rest: 1/2″ – 7 7/8″
Motors:
Coolant Pump: 1/4 HP
Main Drive: 10 HP
Standard Features:
Inch/metric threads with single switch lever
Cuts most inch/metric threads without change gears
Hardened and ground bedways
Force lubrication to the headstock, carriage, and bedways
Mechanical disc clutch
Precision (3) bearing spindle
Crossfeed and threading safety interlock
Feed reversing at the apron
4-way rapid traverse
Single lever control for feeds and rapids
Two-speed tailstock
Standard Equipment:
Standard Steady Rest
Extra Capacity Steady Rest with Rollers
Follow Rest
Thread Dial
Coolant System
Taper Attachment
12″ 3-Jaw Chuck with Two Piece Jaws
Carriage Stop
Work Light
Full Length Splash Guard
Service Wrenches & Spanners
Mechanical Specifications:
Shipping Dimensions: 136″ x 48″ x 60″ H
Shipping Weight: approx. 7,200 lbs.
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