Non-gland seal mixer SLM RAV with a permanent magnet drive
The SLM RAV magnet drive is a completely watertight unit. High quality permanent magnets translate drive output and torque from the external magnet drive in the ambient atmosphere to the internal magnet carrier on the product side. The isolation shell between the two magnetic rotors provides the system with a completely leakproof seal.
The mixer/agitator shaft is mounted on ball bearings on the product side. The design of these bearings is determined by the product-side conditions such as temperature, rpm, product properties and the like. Oftentimes standard ball bearings can be used that are lubricated afterwards or permanently packed in grease and that are sealed using PTFE radial shaft sealing rings. The ball bearings can help protect against corrosion through realization of an inert gas overlay.
In the interest of monitoring operating status and detecting damage at an early stage, PT-100 can be used for temperature sensors, vibration measurement nipples, rpm sensors, and motor power output monitoring devices.
The SLM RAV magnet drive is available as a category 2 device for use in zones 1 and 2. If zone 0 is present inside the drive, the zone category can be reduced to 1 or 2 through the use of an inert gas overlay
The most basic version of the SLM RAV magnet drive consists of the following:
Drive carrier and magnet driver for connection to the drive motor and gearing
Riser/mixer/agitator shaft extension assembly with a junction for the tank flange
Product-side mixer/agitator shaft extending from the magnet carrier to the mixer/agitator shaft coupling
Drive motor/gearing/gearing motor
Monitoring gauges for temperature, rpm and vibration
Inert gas junction
Up to 7000 rpm
t from -120 °C up to +450 °C
p up to PN 100
Higher pressure levels and special configurations available
In order to provide you with a quote, we need information in respect to the following:
Stirring process (product, pressure and temperature)
Tank flange dimensions; mixer/agitator shaft length and diameter
Axial and radial force at the stirring element
Drive output, rpm and torque; motor/gearing data; and possibly the manufacturer and the relevant dimensions
Monitoring modalities for rpm, output and temperature