Two-Mass refers to a style of vibratory equipment where one mass (an exciter) is used to drive a second mass (trough). The exciter mass typically contains a motor and is connected to a trough using a combination of springs. Combining the two masses and the springs, a resonant frequency can be calculated. When the operating frequency of the motor is close to this calculated natural frequency, the resonance that takes place within the system requires less horsepower to achieve the same amount of work as a single mass (brute force) system. The closer the frequency to the operating speed, the less horsepower required.

BENEFITS: Two-Mass over Brute Force

• Two-Mass drive uses significantly less energy than brute force.
• Impact into equipment is reduced, causing equipment to last longer.
• As load increases, so does conveyability of product.
• Equipment does not bog down and dampen out under load like brute force.
• More stroke can be achieved with less energy with a Two-Mass drive system.