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Petty-Thompson CNC Toolroom
Lathes
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The TRAK TRL combines the
flexibility and simplicity of manual machining with essential
capabilities of sophisticated CNC's.
With
the TRAK TRL, you can choose the correct capability for the
job at hand. You are able to move freely between
conventional turning and CNC operation. Manual
set-ups and tooling for contours, chamfers, threading, etc.
are eliminated. The ProtoTRAK control is designed
to eliminate the complications and set-ups required to use a
production-oriented control.

TRAK TRL 1840 CSS PROTOTRAK CONTROL
* 18" swing x 40 " travel |
* 10 HP spindle motor |
* Infinite variable spindle speed |
* Constant Surface Speed (CSS) |
* Feedrate is programable in Inches per
Revolution (IPR) or Inches per Minute
(IPM) |
The TRAK TRL 1840 CSS gives you flexibility and simplicity
on a CNC lathe useful for production as well as toolroom
applications.
Features such as Constant Surface Speed, generous cross
slide travel and sliding protective door make this model ideal
for low production. At the same time, the TRAK TRL 1840 CSS is
designed to be easy to use manually for making tooling,
prototypes and other parts needed in very small quantities.

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PROTOTRAK LX2
CONTROL
A Unique Combination of CNC Technology and Manual
Flexibility That Makes Every Turning Job Easier...
...Easier to use manually than a conventional lathe,
even for basic facing and grooving.
- Servo jog controlled by jog switch.
- Tool data is applied to manual operations to
eliminate the need to set references every time a tool is
changed.
- Go To - a simple input sets a dimension in X, Z
or both. You can then machine manually and the
control will not let you go past the Go To dimension
you set, but will allow you to forget about watching the DRO
for your dimension.
- Convenient Powerfeed routines for smooth cuts
along X or Z.
- Spindle speed selection and tool changes are the same as
for a manual machine.
...A lot easier
than a conversational lathe for more complicated turning
work.
- Canned cycles for: drilling, turning,
threading, boring, contouring, roughing
- Reduced manual set-ups.
- No need for special attachments and
tooling.
...Easier than any other CNC to
understand and program.
- All your system interface is in plain language -
no codes of any kind.
- Geometry-based part programming - more natural
than the tool-path programming of other CNC's.
- Cycle - a powerful routine where you enter your
part geometry and the size of your material and the roughing
and finishing tool paths are generated for you.
- Tool compensation is easy and is automatically
applied - no need to turn it on and off.
- Prompted data inputs - eliminates errors and
enhances confidence.
- All functions are organized into modes to
eliminate the need to memorize "computer" procedures.
- Clear, consistent screen organization eliminates
confusion because you don't have to search the screen for
the information or prompts you
need.
...Easier to use as a
CNC.
- Program Run like a CNC, with prompts provided for
tool changes, etc.
- Screen graphics let you see your part before you
machine.
- Easy tool offset modifications to "sneak up" on
critical dimensions.
- TRAKing - at the press of a button during the CNC
program run, you control the feedrate for your program by
turning the handwheel - speed up, slow down,
back away, make multiple passes, whatever you
see fit - you are in control, not the CNC.
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CONTROL
HARDWARE
Slip Clutches on X and Z to prevent
damage from crashes. Digital Servo
Amplifiers custom designed for LX2 operation. 115
volt / 1 phrase / 60 Hz; 8 amps full load
current. Closed Loop Feedback with encoder
resolutions of 0.00005" on the X and 0.0001" on the
Z. Rapid Travels are 100 ipm for X and 150 ipm for
Z. Ground Ballscrews in the saddle and cross slide
for smooth, accurate contours without backlash. Modular
Design simplifies service and maximizes
uptime. Feedrate Override of programmed feedrate and
rapid. Polycarbonate Sealed Membrane Keypad and
Gasket-Sealed Enclosures to lock out
contamination. 9" CRT for clear presentation of
prompts, status information and part graphics. Jog
switch for convenient jog at rapid travels. RS232
Port for interface to computers. Dual Floppy Disk
Drive with one drive accessible for additional part
program storage.
SOFTWARE
Infinite threading range
of standard and multilead threads. Switchable Handwheel
Feeds between course and fine. Canned cycles to
make programming easy. Just choose the geometry and
the software guides you through the process of inputting the
data. Choose between the following canned
cycles:
- Position - a single point
- Drill - using the carriage and cross
slide with pecks
- Bore - any ID with a standard boring bar
- Turn - a straight line including diagonals
- Arc - A fraction of a circle
- Cycle - automatic roughing out of stock to final
shape, includes automatic finish cuts
- Thread - infinite range of standard ID or OD, may
be straight or tapered and up to 10 leads.
- Repeat - of any previous event(s) with or without
offsets
Math Help routines for finding
program data gives you access to CAD-like capabilities during
programming. Automatic Cutter Compensation is easy
and applies to manual as well as CNC work. Icon
Prompted entry of tool data makes setting tools
easy. Tool Modifications - simple adjustments to the
tool offsets to compensate for part deflection and tool wear
or to do finish cuts. Circular Interpolation to
machine arcs. Linear Interpolation to machine
diagonals. Conrad/Chamfer blends straight lines or
arcs together in a precise radius or chamfer with one data
input. Incremental and Absolute programming can even
be mixed within an event. Error Messages to identify
programming mistakes. Fault Messages for system
self-diagnostics. Program Downloading from off-line
CAD/CAM systems via a modified FANUC 6
post-processor. Part Graphics to show entire program
or tool path, before you machine or during program
run. Software Programmable keys to keep procedures
uncomplicated. Powerfeed routines for smooth cuts
along the X or Z axis. Manual Go To - Dimensions
that can be set while working manually and the control will
not allow you to go past them.
STANDARD Rear
splash guard Leveling screws Coolant
pump
OPTIONAL Precision tool holders Steady rest
and follow rest Chuck Collet
Closer
SPECIFICATIONS
Lathe |
1440P |
1745P |
1840CSS |
CONTROL |
ProtoTRAK LX2 |
ProtoTRAK LX2 |
ProtoTRAK
LX3 |
Capacity |
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Height of Centers |
7" |
8 7/8" |
9" |
Distance between Centers |
40" |
45" |
40 1/4" |
Swing over bed |
14" |
17 11/16" |
18 1/2" |
Swing over Saddle Wings |
13 3/16" |
16 1/8" |
17" |
Swing over Cross-Slide |
7 13/16" |
10 15/32" |
9" |
Cross-Slide Travel |
8" |
9" |
13" |
Tool Section Max |
3/4" |
1" |
1" |
Coolant |
2.5 gal. |
4 gal. |
13 gal. |
Bed |
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Width |
10" |
12" |
14 1/2" |
Height |
10 1/4" |
11 1/2" |
13 3/8" |
Headstock |
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Spindle Nose (Camlock) |
D1-5 |
D1-6 |
D1-6 |
Spindle through Hole |
1 5/8" |
2" |
2.36" |
Spindle Taper |
1 deg., 29 min.
15 sec. |
Taper in Reduction Sleeve |
MT-4 |
MT-4 |
MT-4 |
Spindle Dia./Front Bearin |
2.76" |
3.15" |
3.35" |
Number of Spindle Speed |
18 |
12 |
infinitely
variable |
Spindle Speed Range(RPM) |
35-2400 |
40-2200 |
50-2500 |
Tailstock |
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Quill Travel |
5 1/2" |
6 1/4" |
6 1/4" |
Quill Diameter |
1 7/8" |
2 5/16" |
2.95" |
Quill Taper Hole |
MT-3 |
MT-4 |
MT-5 |
Moter-Main |
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HP |
2.5/4.5 |
7.5 |
10 |
Volt |
220 |
220/440 |
220 |
Amps full load current |
22 |
31/16 |
36 |
Phase/Hz |
3/60 |
3/60 |
3/60 |
Dimensions |
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Net inches - l/w/h, lbs |
78/33/56/2000 |
87/36/57/2600 |
91/53/70/4500 |
Ship inches - l/w/h, lbs |
90/45/62/2225 |
100/48/63/2850 |
97/58/72/5170 |
Other |
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Coolant Pump Motor |
.07 HP |
.07 HP |
.25 HP |
Spindle Motor Brake* |
Electro-magnetic
with adjustable stopping speeds |
Way surface hardness |
400-450
HB |
Gear box lubrication |
Oil bath with
sight level indicator |
Emergency Stop Button* |
2 - headstock
and at tailstock |
Safety disconnect |
For both machine
and control at single electrical box |
Additional features on
the TRL 1840 CSS |
Spindle Motor Brake |
Injection
braking |
Safety Disconnect |
Single point
disconnect |
Emergency Stop
Button |
Located on the boor control
panel |
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Standard |
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Optional |
Rear Splash Guard |
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Precision Tool
Holders |
Leveling Screws |
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Steady Rest |
Collant Pump |
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Follow Rest* |
Chuck Guard* |
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Chuck |
Protective Door** |
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Collet Closer |
Worklight** |
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Tool Indexer
Interface** |
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Gang Tooling
Interface** |
* TRAK TRL 1440P and 1745P only **
TRAK 1840 CSS
only |
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