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Mammoth SK & SE Lathes - Willis Machinery
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Mammoth
SK & SE Lathes |
STANDARD
ACCESSORIES |
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4" spindle bore, A-2-8 |
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6" spindle bore, A-11, optional SE series |
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Gap bed |
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Totally enclosed universal gear box provides inch, metric, modular and diametral pitch threads |
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Automatic longitudinal bed stops |
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2-speed tailstock quill |
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Inch/metric dials and graduations |
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Manual foot brake |
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Adjustable feed overload & safety clutch on apron & carriage |
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Manual / automatic lubrication for slides |
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Hardened and ground gears |
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Induction hardened and ground bed-ways |
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Rotary dial system for quick and easy spindle speed changes |
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Inch threading dial |
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Flood coolant system |
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Four-way tool post |
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Halogen work-light |
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12" Steady rest with roller jaws |
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Center sleeve & 5mt center |
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Tool box & tools, tool-post wrench |
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Anchor bolts with leveling screws and pads |
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110 volt operating controls with no-volt release & e-stop |
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| OPTIONAL
ACCESSORIES |
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Longitudinal rapid traverse |
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3-jaw & 4-jaw chucks |
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Faceplates |
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Taper turning attachment |
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15 HP motor SK series, 20 HP motor SE series |
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6" A2-11 rear chuck adapter for double chuck with guard |
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full length rear splash guard or traveling splash guard |
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"Newall" or "Acu-rite" digital readouts (DRO) |
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Chuck guard |
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Additional steady rests |
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Follower rests |
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4-way rapid traverse for SE series |
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"Aloris" quick change tool-post |
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The heavy duty “Willis” Mammoth SK & SE series lathes are extremely robust, well built, dependable machines. The SK & SE lathes have precision ground spindles supported at three points by high
precision bearings. These lathes incorporate a straight forward, low maintenance design. “Willis” Mammoth SK & SE series lathes feature large, widely spaced bed ways and a large diameter lead screw for maximum rigidity and minimum vibration. These lathes have a standard 4⅛” spindle bore, and offer
an optional 6” spindle bore for the SE series. In addition, an optional rear chuck adaptor, specifically
designed for large diameter pipes and shafts requiring maximum holding power for applications like oil field work, ship building, conveyor manufacturing, roller manufacturing, and hydraulic cylinder manufacturing.
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WILLIS MAMMOTH |
SK 22 |
SK26 |
SE28 |
SE32 |
| Capacity |
Swing Over Bed |
22 |
26 |
28 |
32 |
| Swing Over Crosslide |
13 |
17 |
20 |
23 |
| Swing in Gap |
33 |
37 |
40 |
44 |
| Distance Between Centers |
40, 60, 80, 100, 120, 160, 200 |
40, 60, 80, 100, 120, 160, 200 |
| Headstock |
Spindle Bore |
4 |
4 (6opt) |
| Spindle Noxe |
A2-8 |
A2-8 (AA11 opt) |
| Taper of Center |
5 MT |
| Range of Spindle Speed |
20-1200 |
15-1000 |
| Number of Spindle Speeds |
12 |
| Feeds & Thread Cutting |
Longitudinal Feeds |
0.0002" - 0.016"/rev |
| Cross Feeds |
0.0001" - 0.008"/rev |
| Inch Threads |
2-28 T.P.I. (36) |
| Metric Threads |
0.8-14 mm/thread (37) |
| Carriage |
Cross Slide Travel |
14-3/8" |
16-1/2" |
| Compound Test Travel |
9 |
10 |
| Tailstock |
Quill Diameter |
3 |
3-1/8" |
| Quill Travel |
7 |
9 |
| Taper of Quill |
5 MT |
| Width of Bed |
15 |
18-1/8" |
| Main Moter |
10 (15 option) |
15 |
15 (20 option) |
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