FAQ
My application requires a very high maximum speed and a very low minimum speed. What can I use?
Can I use the Var-Spe variator in an environment with a lot of dust and humidity?
Can I move the adjustment handwheel with the motor off?
Yes, the speed adjustment handwheel can be preset with the motor off without damaging any component inside the variator.
Can I start from zero under load?
If the machine jams (e.g., material blocking the auger or the conveyor belt), is there some kind of system to protect the drive and the machine?
I need to vary speed remotely with a 4-20mA signal. What alternative is there to an inverter?
I have an internal combustion (diesel) engine instead of an electric motor. Can I use it anyway to drive the variator?
Of course. Our variator can be supplied with male input shaft to be connected via pulley ratio to the power output of the diesel engine. Contact Var-Spe for more details.
I need to send my machine to faraway countries where it is not easy to find workers specialized in electronics. What can I do?
Our variator is a system that is simple and reliable. It needs no skilled labour for use or to restart it after a machine breakdown. It is intuitive and easy to maintain (oil change).
Are Var-Spe variators available in inches (NEMA)?
Yes, the K series is available in NEMA version, with shafts and flanges in inches (56C, 143TC, 145TC, 182Tc and 184TC). Click here to see the sizes.
I am looking for an alternative to the inverter for Atex environments.
Var-Spe variators can be supplied in accordance with the ATEX directive, providing a simple and affordable solution. Click here to learn more.
My machine needs to be installed in an area where electricity is not stable or even where there is no electricity at all and it is necessary to use power generators. An inverter becomes a problem in these cases. What can I use?
The Var-Spe variator has no issues linked to poor stability of the electrical power supply. So it is a simple and reliable solution in these cases.
I have an application where it is necessary to work with dynamic braking.
Our variator can also work with dynamic braking. Contact Var-Spe for more information.
I need to do many reversals of the rotation and this involves a series of issues with the electric motor. What can I do?
Using the adjustment systems of Var-Spe variators, you can quickly reverse the output shaft without reversing the electric motor that always rotates in the same direction and at the same speed.
