In gland / mechanical sealing the gland / seal need replacement after every 200-1000 hrs depending on application & gland seal & mechanical seals have limitation of maximum pressure where as magnetic drive can be designed for pressure upto 5000psi & also magnetic drive coupling has no spares that wears out & needs replacement.

Very useful for long or round the clock reactions as in gland sealing if there is any leakage midway, the whole batch may go waste.

Zero leakage implies zero breakdown & zero maintenance, hence large savings in maintenance cost for years.

Safe while using toxic & hazardous chemicals as its leakage is totally prevented.
No waste of expensive liquids through leakage.

Almost no losses since these are friction free in synchronous operations.
Minimum vibration transmission & hence smooth running.

The coupling is flexible & hence any over load results in coupling slippage, thus preventing any breakage of coupling, shaft or failure of motor.

It is a zero leakage maintenance free coupling directly driven by the motor. It consists of external magnet rotor, which is driven by the motor. A stationary shell is threaded / bolted to reactor head & completely isolates the external rotor from the inner rotor. As the external rotor rotates, the internal also rotates in synchronism. The reactor's shaft is threaded to the inner rotor. High energy permanent (rare earth) magnets are fixed inside the inner & outer rotors. A water cooling jacket protects the magnets & other components from excessive temperature arising from the reactor.