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Rotation Mechanism

MELLEN produces a Rotation Mechanism featuring a heavy duty frame and a precision actuator.  The system is  designed to be positioned below the vertical furnace system ( with a linear drive mechanism).

The actuator drive system has a lifting capacity of 10 pounds.   The drive train  is supplied with a size 34 1.8^o step, precision stepping motor including a low backlash, in-line gear reducer.

The minimum speed capability is 0.17 mm/day and the maximum speed is 7.6mm/minute.  The maximum translation is 36 inches.

A second stepper motor and micro-stepping controller/indexer permits the rotation of the crucible.  The crucible support rod is capable of being rotated from .01 to 100 rpm by the second stepper motor, drive train.  Both C.W. and C.C.W. motion are possible.

The crucible rotation mechanism includes a versatile micro-stepping controller featuring multiple speed resolutions from full step to 256 micro-steps per motor step allowing for a drive resolution of 51,200 steps per revolution of the motor output shaft.  The indexer control module is operated directly from the serial port of the PC based computer. 

• Power requirements are 120 VAC. 
• All cables between the crystal puller's indexer control module and the stepper motor; and between the control module and the computer control system (15 feet) are supplied.

This system allows the operator to rotate the ampoule clockwise, stop & counterclockwise over 9,999 times or as many as the user requires.

 Frame

The furnace is mounted on top of a rugged frame that is fabricated from aluminum structural tubing (rectangular) and is painted with MELLEN black and teal catalyzed enamel.

Contact MELLEN for more information or complete a Request for Additional Information.

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