USED 1990 Eltee TRM-21 PULSITRON, "VMC" CNC ORBITING, 3R SET UP

    ELTEE PULSITRON "MADE IN USA"

      RAM-TYPE EDM MACHINE,

  ELTEE PULSITRON MODEL #EP300CP

  PROGRAMMABLE Z-AXIS CYCLE CONTROL

  WITH "VMC" CNC ORBITING SYSTEM

            (C-AXIS)

MODEL: TRM-21        NEW: 1990

X-TRAVEL .................. 8"

Y-AXIS TRAVEL ............. 6"

Z-AXIS TRAVEL ............. 10.5"

MAX. QUILL CLEARANCE ...... 17- 3/8"

WORK TABLE ................ 16" X 11"

MAX. TABLE LOAD CAP. ...... 300 LBS.

WORK TANK SIZE ...... 19- 3/4" x 14- 3/4" x 12"

DIELECTRIC REQUIRED ....... 55 GALS.

EQUIPPED WITH:

ELTEE PULSITRON MODEL #EP300CP PROGRAMMABLE Z-AXIS

 CYCLE CONTROL, AND POWER SUPPLY (30 AMP)

PENDANT FOR POWER "Z" AXIS, WITH RAPID UP & DOWN

 & JOG INCREMENTS

FUTABA 3-AXIS DIGITAL READOUT DISPLAY

SYSTEM 3R CHUCK ON THE PLATEN

SWITCH ON MACHINE FOR HOLD-OFF-RELEASE

 (CHUCK CONTROL)

5" x 10" O.S. WALKER "FINE-DIVISION" "LBP"

 ELECTRO-MAGNETIC CHUCK

O.S. WALKER VARIABLE HOLD NEUTROFIER CONTROL

MACHINE IS WIRED 3/60/208/8 KVA FULL LOAD

DESCRIPTION OF THE "VMC

CNC ORBITING SYSTEM (C-AXIS):

The "VECTOR MACHINING CONTROL"

 Computer Controller is a highly

 accurate and sophisticated DNC

 (Direct Numeric Control) system,

 which combines an accurate

 SYSTEM #3R mechanical unit

 with multiple microporcessors.

 The machanical portion consists

 of X-Y axis  slides, using preloaded

 linear bearings.  Each Slide (X-Y)

 is controlled by a stepping motor.  

 The stepping motors are mounted on

 the outside of the mechanical unit

 in order to minimize head built-up.  

 One Step on the motors will move the

 slide .00005 inches, which in turn

 drives a screw.  The screws are

 contained in an oil bath for

 extra lubricant protection.

 Each screw is also equipped with

 an automatic backlash eliminator.

The DNC Computer control is a

 two microprocessor system.  Unlike

 many other computer controlled

 systems, the VMC system is designed

 with the tool maker (operator)

 in mind.  Learning time is at a

 minimum because the operator is

 prompted through data entry.  

 This is also done in order

 to safeguard against the entry

 of improper information.  The VMC

 System is also inch metric switchagle.  

 This may be accomplished by using the

 switch provided on the rear panel of

 the DNC unit.  The CRT will display

 the direction of movement in direct

 relationship to the electrode.  

 For ease of viewing, the display is

 automatically scaled.

The VMC System will allow the

 operator to machine horizontally

 as well as vertically.  

 This feature will enable the

 operator to hold tighter tolerances

 and finer surface finishes while

 decreasing the overall machining time.

 With this system is is possible to

 machine up to a dimension, instead

 of having to depend on exact

 electrode dimensions and pickup.  

 This will help to avoid and

 correct pickup errors which may

 occur with conventional EDM machining.  

 The following machining functions

 are built into the VMC System:

 - Threading

 - Undercutting

 - Orbiting

 - The ability to maintain sharp corners

    on square and rectangular shapes

 - Automatic calculation of distance for

    triangular, square, and hex shapes

    through the microprocessor.

 - The ability to machine tapers for die

    clearance and mold work using a

    straight electrode.

These machining functions are described

 in detail in the instruction manual.

SPECIFICATIONS:

-The vector machining control is a

 3 axis multiple DNC system.

-Capacity in the horizontal mode

 is .200 or 5mm each side of the center.

-System is servo controlled in 3 axis.

-Horizontal movement is controlled

 in 50 millionth

  -increments.

Increment depth selection for

 cutting in poor flushing condition.

-Taper cutting with straight

 electrode can be generated within

 the movement limit of XYZ axis.

-Horizontal movement under servo

 control is possible without any

 movement of Z axis; for example

 thread cutting or straightundercut.

-Standard preprogrammed shapes are:  

 triangular, square, hex and round.  

 Under these conditions the computer

 calculates the correct distance to

 it's resulting corner.

-The unit can machine in any

 horizontal direction in 1° increments.

-VMC eliminates problems with corner

 radii.

-Center correction can be made

 without losing program.

-CRT Display of the Program

 Mode that is being performed.

** INSPECT IN OUR HARRISON, NJ WAREHOUSE **

** EXCELLENT CONDITION & APPEARANCE

        (ORIGINAL PAINT) **

FOR MORE INFORMATION: Call Andy at 973-497-7600