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 "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, Serial Number 91-4025, Inventory Reference L3000-10487 - Century Machinery")
![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 "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, Serial Number 91-4025, Inventory Reference L3000-10487 - Century Machinery")
![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 "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, Serial Number 91-4025, Inventory Reference L3000-10487 - Century Machinery")
![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 "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, Serial Number 91-4025, Inventory Reference L3000-10487 - Century Machinery")
![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 "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, Serial Number 91-4025, Inventory Reference L3000-10487 - Century Machinery")
![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 "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, Serial Number 91-4025, Inventory Reference L3000-10487 - Century Machinery")
![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 "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, Serial Number 91-4025, Inventory Reference L3000-10487 - Century Machinery")
![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 "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, Serial Number 91-4025, Inventory Reference L3000-10487 - Century Machinery")
![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 "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, Serial Number 91-4025, Inventory Reference L3000-10487 - Century Machinery")
![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 "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, Serial Number 91-4025, Inventory Reference L3000-10487 - Century Machinery")
![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 "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, Serial Number 91-4025, Inventory Reference L3000-10487 - Century Machinery")
![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 "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, Serial Number 91-4025, Inventory Reference L3000-10487 - Century Machinery")
![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 "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, Serial Number 91-4025, Inventory Reference L3000-10487 - Century Machinery")
![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 "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, Serial Number 91-4025, Inventory Reference L3000-10487 - Century Machinery")
![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 "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, Serial Number 91-4025, Inventory Reference L3000-10487 - Century Machinery")
![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")
![13" sw x 40" cc, Turnmaster Engine Lathe, Thru Hole 1.5", Spindle Speed 45-900 rpm, Inch-MM, Taper, 1.5 hp, Serial Number 1340F08850259 [L3000-10393]](https://centurymachinery.com/wp-content/uploads/2021/04/10393-1-turnmaster-lathe13-inch-sw-x-40-inch-cchole-1.5-in45-900-rpmin-mmtaper-1.5-hpSerial-1340F08850259-F-300x300.jpg "13 inch swing x 40 inch cc Turnmaster Engine Lathe with Thru Hole 1.5 inch Spindle Speed 45- 900 rpm - Inch-Metric - Taper Att 1.5 hp, Serial Number 1340F08850259, Inventory ReferenceL3000-10393 - Century Machinery")
![12" sw x 30" cc, Turnmaster Engine Lathe, Swing Cross Slide 7", Speed 85-1400 rpm, Hole 1.5" diameter, in-mm, Taper Attachment, Serial Number 2056 [L3000-9717]](https://centurymachinery.com/wp-content/uploads/2021/04/9717_turnmaster-engine-lathe_12-in-sw-x-30-in-cc_SCS-7-in_85-1400-rpm_bore-1.5-in-dia_in-mm_taper_Serial-2056.jpg "12 inch swing x 30 inch cc Turnmaster Engine Lathe Swing Cross Slide 7 inch - Speed 85 thru1400 rpm with Inch-Metric Threading - Taper Attachment, Serial Number 2056, Inventory Reference L3000-9717 - Century Machinery")