PLAZPAKS  HEAVY DUTY  PACKAGES

 

We have divided the Plazpak Stepper Products and the Plazpak Servo products onto separate pages.  The Plazpak series is for heavy duty gantries over 100 lbs or for retro-fits where the motor mounts are for 34 frame motors.
Heavy Duty Stepper SystemsHeavy Duty Servo Packages


The decision to use stepper or servos should be tied to the requirements not to heresay or emotion.   

Generally Steppers are:
1.  Less costly
2. Easier to setup and maintain
3. Have fewer parts
4.  Lower RPM - higher torque
5.  Loses torque with RPM
6.  Have a more narrow range of torque and RPM
7. Better suited to single use type cutting
8. Open loop...no position awareness
9. Lower resolution  (due to gearing)
10  Require low ratios of final drive gearing
11.  Self limiting ...wiill not overlaod or burnout
Generally Servos are:
1. More costly
2. Harder to setup and maintain
3. Have more parts
4. Higher RPM with even torque
5. Maintain torque across full RPM
6. Have a wide range of torque and RPM
7. Better suited to multi use type cutting
8. Closed Loop .  
9. Higher resolution (due to gearing)
10. 
Requires high ratios of final drive gearing  
11. Requires added circuitry to protect
motors and drivers from overload.