Description
MONARCH ENGINE LATHE
Series 91, Model 4025, Serial Number 47845
SPECIFICATIONS
CAPACITY
Swing Over Bed, 40½” (1,028.7mm)
Swing Over Cross Slide, 25″ (635mm)
Distance Between Centers, 252″ (6,400.8mm)
SPINDLE BORE DIAMETER 3½” (88.9mm)
SPINDLE SPEEDS (36) 6 thru 750 R.P.M.
SPINDLE MOUNT, D1-11 Cam Lock
CROSS SLIDE TRAVEL, 20″ (508mm)
FEEDS (48) 0.0035″ thru 0.196″
(0.0889mm thru 4.978.4mm)
Longitudinal and Transverse (Hand and Power)
4- Way Rapid Traverse on Carriage, Cross Slide
THREADS: (Number of 48) 1/2″ thru 28 TPI
(12.7 thru 711.2 TP/mm)
TAIL STOCK QUILL, 5 MT
Travel: Two Speed, 11½” (292.1mm)
MOTOR DRIVES: wired 440 volts, 3 Phase
Main Drive 50 hp. 220/440 volts
Coolant Pump 1/3 hp. 220/440 volts
CONTROLS: wired Remote Low voltage
EQUIPPED WITH:
Taper Attachment.
Four Way Rapid Traverse.
1-Chuck, 38″ (965.2m) diameter, Four Independent Adjustable Jaws
1- Chuck, 28″ (711.2mm) diameter Three Jaws.
1-Face Plate, 32″ (812.8mm) dia
5- Steady Rest with the following thru holes.
1- Follow Rest. 1- Chase Dial.
1- Carriage Micro Stop. 1-Live Center.
1-Tool Holder 4-way. Hardened Bed Ways
1-Coolant Pump.
Miscellaneous Face Plate attachable Jaws
Full Chip Pan
COMPLETE FACTORY SAFETY GUARDS
Dimensions 90″ F-B x 408″ L-R x 72 Ht.
Approximate Weight 46,940 lbs.
40.5 inch swing x 252 inch centers Monarch Series 91 Model 4025 Engine Lathe – Swing Cross Slide 25 inch – Spindle Speed 6-750 rpm – Taper – 3 & 4 Jaw Chucks – Rapid Traverse
![40.5" sw x 252" cc, Monarch Engine Lathe Series 91, Model 34025, Swing Cross Slide 25", Speed 6-750 rpm, Taper, 3 & 4 Jaw Chucks, Rapid Traverse, Serial Number 91-4025, [L3000-10487]](https://centurymachinery.com/wp-content/uploads/2021/04/10487-1-monarch-lathe-series-91-mdl-34025-40.5-in-sw-x-252-in-cc-sw-CS-25-in-6-750-rpm-taper-3_4-J-rapid-Serial-91-4025-Head-to-Tailstock.jpg "10487-1, monarch lathe series 91, mdl 34025, 40.5 in sw x 252 in cc, sw CS 25 in, 6-750 rpm, taper, 3_4 J, rapid, Serial 91-4025, Head to Tailstock")
![40.5" sw x 252" cc, Monarch Engine Lathe Series 91, Model 34025, Swing Cross Slide 25", Speed 6-750 rpm, Taper, 3 & 4 Jaw Chucks, Rapid Traverse, Serial Number 91-4025, [L3000-10487]](https://centurymachinery.com/wp-content/uploads/2021/04/10487-2-monarch-lathe-series-91-mdl-34025-40.5-in-sw-x-252-in-cc-sw-CS-25-in-6-750-rpm-taper-3_4-J-rapid-Serial-91-4025Tailstock-to-Head.jpg "10487-2, monarch lathe series 91, mdl 34025, 40.5 in sw x 252 in cc, sw CS 25 in, 6-750 rpm, taper, 3_4 J, rapid, Serial 91-4025,Tailstock to Head")
![40.5" sw x 252" cc, Monarch Engine Lathe Series 91, Model 34025, Swing Cross Slide 25", Speed 6-750 rpm, Taper, 3 & 4 Jaw Chucks, Rapid Traverse, Serial Number 91-4025, [L3000-10487]](https://centurymachinery.com/wp-content/uploads/2021/04/10487-5-monarch-lathe-series-91-mdl-34025-40.5-in-sw-x-252-in-cc-sw-CS-25-in-6-750-rpm-taper-3_4-J-rapid-Serial-91-4025Headstock.jpg "10487-5, monarch lathe series 91, mdl 34025, 40.5 in sw x 252 in cc, sw CS 25 in, 6-750 rpm, taper, 3_4 J, rapid, Serial 91-4025,Headstock")
![40.5" sw x 252" cc, Monarch Engine Lathe Series 91, Model 34025, Swing Cross Slide 25", Speed 6-750 rpm, Taper, 3 & 4 Jaw Chucks, Rapid Traverse, Serial Number 91-4025, [L3000-10487]](https://centurymachinery.com/wp-content/uploads/2021/04/10487-7-monarch-lathe-series-91-mdl-34025-40.5-in-sw-x-252-in-cc-sw-CS-25-in-6-750-rpm-taper-3_4-J-rapid-Serial-91-40254-Jaw-Face-Plate.jpg "10487-7, monarch lathe series 91, mdl 34025, 40.5 in sw x 252 in cc, sw CS 25 in, 6-750 rpm, taper, 3_4 J, rapid, Serial 91-4025,4-Jaw Face Plate")
![40.5" sw x 252" cc, Monarch Engine Lathe Series 91, Model 34025, Swing Cross Slide 25", Speed 6-750 rpm, Taper, 3 & 4 Jaw Chucks, Rapid Traverse, Serial Number 91-4025, [L3000-10487]](https://centurymachinery.com/wp-content/uploads/2021/04/10487-9-monarch-lathe-series-91-mdl-34025-40.5-in-sw-x-252-in-cc-sw-CS-25-in-6-750-rpm-Serial-91-4025Tailstock-with-2-smaller-hole-Stdy-Rests.jpg "10487-9, monarch lathe series 91, mdl 34025, 40.5 in sw x 252 in cc, sw CS 25 in, 6-750 rpm, Serial 91-4025,Tailstock with 2-smaller hole Stdy Rests")
![40.5" sw x 252" cc, Monarch Engine Lathe Series 91, Model 34025, Swing Cross Slide 25", Speed 6-750 rpm, Taper, 3 & 4 Jaw Chucks, Rapid Traverse, Serial Number 91-4025, [L3000-10487]](https://centurymachinery.com/wp-content/uploads/2021/04/10487-10-monarch-lathe-series-91-mdl-34025-40.5-in-sw-x-252-in-cc-sw-CS-25-in-6-750-rpm-taper-3_4-J-Serial-91-4025CU-Carriage-Chks-on-Rack.jpg "10487-10, monarch lathe series 91, mdl 34025, 40.5 in sw x 252 in cc, sw CS 25 in, 6-750 rpm, taper, 3_4 J, Serial 91-4025CU Carriage-Chks on Rack")
![40.5" sw x 252" cc, Monarch Engine Lathe Series 91, Model 34025, Swing Cross Slide 25", Speed 6-750 rpm, Taper, 3 & 4 Jaw Chucks, Rapid Traverse, Serial Number 91-4025, [L3000-10487]](https://centurymachinery.com/wp-content/uploads/2021/04/10487-11A-monarch-lathe-series-91-mdl-34025-40.5-in-sw-x-252-in-cc-sw-CS-25-in-6-750-rpm-taper-3_4-J-rapid-Serial-91-4025-CU-Steady-Rst.jpg "10487-11A, monarch lathe series 91, mdl 34025, 40.5 in sw x 252 in cc, sw CS 25 in, 6-750 rpm, taper, 3_4 J, rapid, Serial 91-4025, CU Steady Rst")
![40.5" sw x 252" cc, Monarch Engine Lathe Series 91, Model 34025, Swing Cross Slide 25", Speed 6-750 rpm, Taper, 3 & 4 Jaw Chucks, Rapid Traverse, Serial Number 91-4025, [L3000-10487]](https://centurymachinery.com/wp-content/uploads/2021/04/10487-12-monarch-lathe-series-91-mdl-34025-40.5-in-sw-x-252-in-cc-sw-CS-25-in-6-750-rpm-taper-3_4-J-rapid-Serial-91-4025CU-Ways.jpg "10487-12, monarch lathe series 91, mdl 34025, 40.5 in sw x 252 in cc, sw CS 25 in, 6-750 rpm, taper, 3_4 J, rapid, Serial 91-4025CU Ways")
![40.5" sw x 252" cc, Monarch Engine Lathe Series 91, Model 34025, Swing Cross Slide 25", Speed 6-750 rpm, Taper, 3 & 4 Jaw Chucks, Rapid Traverse, Serial Number 91-4025, [L3000-10487]](https://centurymachinery.com/wp-content/uploads/2021/04/10487-13-monarch-lathe-series-91-mdl-34025-40.5-in-sw-x-252-in-cc-sw-CS-25-in-6-750-rpm-taper-3_4-J-rapid-Serial-91-4025-Monarch-61-tag.jpg "10487-13, monarch lathe series 91, mdl 34025, 40.5 in sw x 252 in cc, sw CS 25 in, 6-750 rpm, taper, 3_4 J, rapid, Serial 91-4025, Monarch 61 tag")
![40.5" sw x 252" cc, Monarch Engine Lathe Series 91, Model 34025, Swing Cross Slide 25", Speed 6-750 rpm, Taper, 3 & 4 Jaw Chucks, Rapid Traverse, Serial Number 91-4025, [L3000-10487]](https://centurymachinery.com/wp-content/uploads/2021/04/10487-14-monarch-lathe-series-91-mdl-34025-40.5-in-sw-x-252-in-cc-sw-CS-25-in-6-750-rpm-taper-3_4-J-rapid-Serial-91-4025CU-Feed-Chart.jpg "10487-14, monarch lathe series 91, mdl 34025, 40.5 in sw x 252 in cc, sw CS 25 in, 6-750 rpm, taper, 3_4 J, rapid, Serial 91-4025CU Feed Chart")
![40.5" sw x 252" cc, Monarch Engine Lathe Series 91, Model 34025, Swing Cross Slide 25", Speed 6-750 rpm, Taper, 3 & 4 Jaw Chucks, Rapid Traverse, Serial Number 91-4025, [L3000-10487]](https://centurymachinery.com/wp-content/uploads/2021/04/10487-15-monarch-lathe-series-91-mdl-34025-40.5-in-sw-x-252-in-cc-sw-CS-25-in-6-750-rpm-taper-3_4-J-rapid-Serial-91-4025-Spdl-Spd-Dial.jpg "10487-15, monarch lathe series 91, mdl 34025, 40.5 in sw x 252 in cc, sw CS 25 in, 6-750 rpm, taper, 3_4 J, rapid, Serial 91-4025, Spdl Spd Dial")
![40.5" sw x 252" cc, Monarch Engine Lathe Series 91, Model 34025, Swing Cross Slide 25", Speed 6-750 rpm, Taper, 3 & 4 Jaw Chucks, Rapid Traverse, Serial Number 91-4025, [L3000-10487]](https://centurymachinery.com/wp-content/uploads/2021/04/10487-16-monarch-lathe-series-91-mdl-34025-40.5-in-sw-x-252-in-cc-sw-CS-25-in-Serial-91-4025CU-Face-Plate.-Chuck-wrapped-_-Steady-Rest-on-Rack.jpg "10487-16, monarch lathe series 91, mdl 34025, 40.5 in sw x 252 in cc, sw CS 25 in, Serial 91-4025CU Face Plate. Chuck wrapped _ Steady Rest on Rack")
![40.5" sw x 252" cc, Monarch Engine Lathe Series 91, Model 34025, Swing Cross Slide 25", Speed 6-750 rpm, Taper, 3 & 4 Jaw Chucks, Rapid Traverse, Serial Number 91-4025, [L3000-10487]](https://centurymachinery.com/wp-content/uploads/2021/04/10487-17monarch-lathe-series-91-mdl-34025-40.5-in-sw-x-252-in-cc-sw-CS-25-in-6-750-rpm-Serial-91-4025Follow-Rest-_-Misc-behind-Lathe.jpg "10487-17,monarch lathe series 91, mdl 34025, 40.5 in sw x 252 in cc, sw CS 25 in, 6-750 rpm, Serial 91-4025Follow Rest _ Misc behind Lathe")
![40.5" sw x 252" cc, Monarch Engine Lathe Series 91, Model 34025, Swing Cross Slide 25", Speed 6-750 rpm, Taper, 3 & 4 Jaw Chucks, Rapid Traverse, Serial Number 91-4025, [L3000-10487]](https://centurymachinery.com/wp-content/uploads/2021/04/10487-18-monarch-lathe-series-91-mdl-34025-40.5-in-sw-x-252-in-cc-sw-CS-25-in-Serial-91-4025CU-Boring-Bar-Holder-_-Misc-behind-Lathe.jpg "10487-18, monarch lathe series 91, mdl 34025, 40.5 in sw x 252 in cc, sw CS 25 in, Serial 91-4025CU Boring Bar Holder _ Misc behind Lathe")
![40.5" sw x 252" cc, Monarch Engine Lathe Series 91, Model 34025, Swing Cross Slide 25", Speed 6-750 rpm, Taper, 3 & 4 Jaw Chucks, Rapid Traverse, Serial Number 91-4025, [L3000-10487]](https://centurymachinery.com/wp-content/uploads/2021/04/10487-19-monarch-lathe-series-91-mdl-34025-40.5-in-sw-x-252-in-cc-sw-CS-25-in-6-750-rpm-taper-3_4-J-rapidSerial-91-4025-CU-mfg-tag.jpg "10487-19, monarch lathe series 91, mdl 34025, 40.5 in sw x 252 in cc, sw CS 25 in, 6-750 rpm, taper, 3_4 J, rapid,Serial 91-4025, CU mfg tag")
![15½" sw x 50" cc, Leblond Makino Regal Servo Shift Engine Lathe, Spindle 2.375", Speed 45-1800 rpm, in-mm, Taper, Serial Number 14C-411, [L3000-10261]](https://centurymachinery.com/wp-content/uploads/2021/04/10261-6-leblond-makino-regal-servo-shift-lathe15.5-in-x-50-in-ccspdl-2.375-in1800-rpmin-mmtaperSerial-14C-411baldor-grinder-LOCATED-IN-POD-Lathe-_-Tlg-300x300.jpg "15½\" sw x 50\" cc, Leblond Makino Regal Servo Shift Engine Lathe, Spindle 2.375\", Speed 45-1800 rpm, in-mm, Taper, Serial Number 14C-411, [L3000-10261] - Century Machinery")
![22½" sw x 120" cc, Monarch Engine Lathe, Series 60, Swing Cross Slide 10", Taper Attachment, 4-Jaw Chuck, Serial Number 44042, [L3000-6713]](https://centurymachinery.com/wp-content/uploads/2021/04/6713-1-monarch-lathe-series-60-22.5-inch-swing-x-120-inch-cc-swing-over-cross-slide-10-inch-taper-attachmentSerial-44042-300x217.jpg "22½ inch sw x 120 inch cc Monarch Series 60 Engine Lathe Swing Cross Slide 10 inch, Taper Attachment, 4-Jaw Chuck, Serial Number 44042, Inventory Reference L3000-6713 - Century Machinery")
![13" swing x 20" centers Rivett Engine Lathe, Model 1020S, Swing Over Cross Slide 7", Variable Spindle Speed thru 3,000 rpm, Thru Spindle Hole 1.250" diameter, Serial Number 220 [L3000-6675]](https://centurymachinery.com/wp-content/uploads/2021/04/6675-1-rivett-engine-lathe-13-inch-swing-x-20-inch-cc-model-1020S-swing-cross-slide-7-inch-spindle-speed-varable-thru-3000-rpm-thru-hole-1.250-inch-Serial-220-300x300.jpg "13 inch swing x 20 inch centers Rivett 1020S Engine Lathe Swing Over Cross Slide 7 inch, Variable Spindle Speed thru 3000 rpm, Thru Spindle Hole 1.250 inch diameter, Serial Number 220, Inventory Reference L3000-6675 - Century Machinery")
