A M Metalmaq Inc
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SUMMIT 20" x 80"B Lathe, NEW (no 4J chuck)   Our stock number: 4040

STANDARD ACCESSORIES:
Thread dial, Steady rest, Oversized steady rest, Follow rest,
12-1/2" dia. 3 jaw chuck with top two piece jaws, Coolant system
Turret carriage stop, Four way rapid traverse,
Taper attachment, Work light and 10 HP main motor

OPTIONAL ACCESSORIES:
FAGOR two axis digital readout system--installed. . . . . . . . . . 3,230.00
(when installed by Summit at time of purchase)

NEWALL two axis digital readout system--installed . . . . . . . . . 3,500.00
(when installed by Summit at time of purchase)

Quick change toolpost with holders. . . . . . . . . . . . . . . . . 1,250.00



ELECTRICS: 220/440/volt, 3 phase, 60 Hz.

SPECIFICATIONS: SUMMIT MODEL 20-4 x 80B LATHE
CAPACITIES:
Swing over bed 20-1/4" (515mm)
Swing over cross slide 11-7/8" (300mm)
Swing over gap 27-5/8" (700mm)
Length of gap 15" (380mm)
Length of gap in front of faceplate 8-3/8" (213mm)
Distance between centers 80" (2000mm)

HEADSTOCK:
Spindle speeds--number 15
Spindle speeds--range 11.5 to 1500 rpm
Hole thru spindle 4-1/8" (105mm)
Spindle nose type D1-8 camlock
Headstock center No 6MT
Number of bearings on spindle 3
Main spindle bearing--Outside diameter 8-1/2" (220mm)
Main spindle bearing--Inside diameter 5" (130mm)
Overall length of spindle 34" (864mm)

QUICK CHANGE GEARBOX:
Threads per inch--number 64
--range 1/4 to 60
Metric threads--number 64
--range 0.5 to 120
Module threads--number 64
--range 0.125 to 30
Diametral pitch--number 64
--range 1 to 240
Longitudinal feeds--number 124
--range .00145 to .44474
Cross feeds--number 124
--range .0007 to .22237
Leadscrew diameter/threads 2"/2 TPI
Feed rod diameter 1"


CARRIAGE & APRON:
Compound rest travel 5-3/8" (136mm)
Compound rest width 5-7/8" (150mm)
Cross slide travel 11-3/8" (290mm)
Cross slide depth of bridge 4-3/4" (120mm)
Cross slide width of bridge 8-1/4" (210mm)
Length of carriage bearing on ways 23"#" (584mm)
Graduation of apron handwheel .020" (0.5mm)
Travel of carriage per
revolution of handwheel 0.875" (22mm)
Graduation of carriage cross
slide handwheel (direct read) 0.002" (0.05mm)

TAILSTOCK:
Travel of spindle barrel 9-1/2" (241mm)
Diameter of spindle barrel 2-15/16" (75mm)
Taper #5 MT
Tailstock body--length on bed 13-3/4" (350mm)
Length of graduations on
tailstock barrel 6" (152mm)
Type of lubrication system reservoir

BED:
Width of bed 15-3/4" (400mm)
Depth of bed 16-7/8" (429mm)
Hardened & ground inserted ways 44-48 Rockwell C

TAPER ATTACHMENT:
Degrees of taper +/- 10 degrees
Maximum turning length per setting 15-3/4" (400mm)

DRIVE & MOTORS:
Main drive motor 10 HP (7.5KW)
Coolant pump motor 1/4 HP (0.18KW)

MISCELLANEOUS:
Steady rest capacity--minimum 1/2" (12.5mm)
--maximum 6-1/8" (155mm)
Oversized steady rest cap.--minimum 5" (127mm)
--maximum 11" (254mm_
Follow rest capacity--minimum 1/2" (12.5mm)
--maximum 7-7/8" (200mm)
Centerline height above floor 44-1/2" (1130mm)


SHIPPING DATA:
Overall (W x H x L) 48" x 60" x 154"
1220mm x 1525mm x 3900mm
Overall weight 7200 lbs (3370 kg)


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