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Martindale Super Lathe-Type
Undercutter |
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This undercutter is for handling large
armatures in a a lathe. It can be mounted directly on the lathe or on
the Slide Carriage which bolts to the lathe cross-slide.
The motor is 3/4 h.p. With Gear-belt drive it has enough power and rigidity
to use 7/8" O.D. × 5/16" I.D. Tungsten-Carbide Saws at 4,600 r.p.m. By
interchanging pulleys it will also use 7/8" O.D. × 5/16" I.D. High-Speed
Steel
Saws at 2,600 r.p.m.
An alternate spindle assembly is available with a 3/8" arbor to use 1-1/8"
O.D. × 3/8" I.D. Saws in either Tungsten-Carbide or High-Speed Steel.
It is longer and can be used with two saws to cut two slots at each pass
with commutator bars up to 1/2" wide (User furnishes spacers to fit
commutators being undercut). Both spindle assemblies include the heavy
and rigid spindle housing which
bolts to the motor mount.
The Heavy-Duty Slide Carriage runs on a variable speed, electric
motor-driven screw drive complete with
foot switch.
Speeds are adjustable in both directions. The stroke is adjustable at
both ends up to 21-3/4". It slides on "oilite" bushings on 1-1/2" hardened
steel rods. A skewed bard adjustment is provided at the left end of the
slide. |
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Left: Undercutter, for attachment to slide carriage, which is shown below, or direct to lathe |
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Super Lathe-Type Undercutter |
complete with Slide
Carriage |
for attaching directly
to the lathe: |
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Catalog
Number |
Catalog
Number |
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115 V, 50/60 Hz, 5/16"
Spindle |
LTHU200A5 |
LTHU201A5 |
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115 V, 50/60 Hz, 3/8"
Spindle |
LTHU200A3 |
LTHU201A3 |
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230 V, 50/60 Hz, 5/16"
Spindle |
LTHU200B5 |
LTHU201B5 |
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230 V, 50/60 Hz, 3/8"
Spindle |
LTHU200B3 |
LTHU201B3 |
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Extra 5/16" Spindle
Assembly |
LTHU445 |
| Extra 3/8" Spindle
Assembly |
LTHU443 |
Carriage,
Slide Only, A=115V. OR B=230V. |
LTHU210
(A) OR (B) |
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Saw Spindle length:
12-3/4"
Vertical
adjustment on support posts:
4-5/8" |
Slide Carriage
(shown below)
Electric Motor-Driven Screw-Drive |
Net Weight: Complete Unit 189 lbs.,
without Slide Carriage 62 lbs.
Shipping
Weight: Complete Unit
303 lbs.,
without Slide Carriage 83 lbs. |
Maximum Slide Travel: 21-3/4"
Base Length: 37"
Overall Length: 47-1/2" |
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| Saws
and V-Cutters |
| High Speed Steel |
O.D. |
I.D. |
Catalog Number |
| 75-HS Saws |
7/8" |
5/16" |
HSMS75 |
| 75-VHS Cutters |
7/8" |
5/16' |
HSMSV75 |
| 96-HS Saws |
1-1/8" |
3/8" |
HSMS96 |
| 96-VHS Cutters |
1-1/8" |
3/8" |
HSMSV96 |
| Tungsten-Carbide |
O.D. |
I.D. |
Catalog Number |
| 75-TC Saws |
7/8" |
5/16" |
TUNS75 |
| 75-VTC Cutters |
7/8" |
5/16" |
TUNSV75 |
| 96-TC Saws |
1-1/8" |
3/8" |
TUNS96 |
| 96-VTC Cutters |
1-1/8" |
3/8" |
TUNSV96 |
For further specifications
see H.S.S. or
Tungsten-Carbide Mica Saws |
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