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Screw Jacks,Gearboxes,Actuators,Lifting Systems Manufacturers

Technical Supports

Technical Supports

Technical Notes

For JTW Series, JT Series, JTC Series, JTM Series Screw Jacks Technical Notes:
1. The recommended maximum speed is 1500rpm/50hz, 1800rpm/60hz.
2. Providing the recommended horsepower and working temperature are not exceeded. Maximum allowable power ratings are based on a 25% duty cycle. For operation at higher duty cycles or repeated use over any segment of the total travel, working temperature must be monitored and remain less than 85 degree C.
3. Overload capacity of the screw jacks is as follows: 10% for dynamic loads, 25% for static loads.
4. Screw jacks with single lead screws provide the benefits of a self-locking screw and will hold loads without backdriving in the absence of vibrations. 
5. All screw jacks are suitable for intermittent operation providing that the housing temperature including ambient is not lower than -20 degree C. or higher than +85 degree C. JACTON supplied grease in standard units will operate in this range. For higher or lower operating temperature ranges consult JACTON.
6. All screw jacks jpg, pdf, auto cad dimensions are representative only and are subject to change without notice. 
7. All screw jacks are not to be used as personnel support or movement.
 
For JTB series Ball Screw Jacks Technical Notes:
1. The recommended maximum speed is 1500rpm/50hz, 1800rpm/60hz.
2. Providing the recommended horsepower and working temperature are not exceeded. Maximum allowable power ratings are based on a 35% duty cycle. For operation at higher duty cycles or repeated use over any segment of the total travel, temperature must be monitored and remain less than 85 degree C.
3. Overload capacity of the ball screw jacks is as follows: 0% for dynamic loads, 10% for static loads.
4. All ball screw jacks can backdrive and require some means of holding the load, such as a brake on the motor, or others locking mechanism. 
5. All ball screw jacks are suitable for intermittent operation providing that the housing temperature including ambient is not lower than -20 degree C. or higher than +85 degree C. JACTON supplied grease in standard units will operate in this range. For higher or lower operating temperature ranges consult JACTON.
6. Ball  screw jacks jpg, pdf, auto cad dimensions are representative only and are subject to change without notice. 
7. Ball  screw jacks are not to be used as personnel support or movement.