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Dexter's magnetic couplings have no seals, no leaks and no contamination. Because our magnetic couplings can transfer motion, force or torque across a solid barrier, no seals are required between the driving motor and the harsh or hazardous operating environment. Without a seal, there is no risk of leak or contamination.
Dexter can provide linear or rotational designs and functionality to handle the harshest of environments. We can scale to any device size or performance specifications you need.
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Precise torque limitation
- torque limitation from 0,0 bis 1.000 Nm (synchronous clutch)
- easy and fast adjustable to your requirements
- application possible even at extreme high rotation
- speeds
- rated torque level is independent of age and operation
- infinitely adaptable to your requirements
- unlimited number of overload cycles
- absolutely abrasion-free
- rated torque level remains constant even at frequent
- overload cycles
Superior hygiene requirements:
- no abrasion
- no working material means or external supplies
- also available in high-grade steel
Superior transmission through the application of hysteresis clutches:
- constant and soft slipping at torque limitation
- ´soft starts´- smooth starting moments
- rated torque level remains constant even at overload status
- the shafts to be connected can be operated with different rotation speed
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Overhead mounted agitator drive:
The overhead drive prevents the escape of any hazardous gases during agitation.
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Using a bottom mounted agitator drive, the agitator is hermetically sealed, thus preventing any contamination of the product.
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Performance Spectrum:
- The broad spectrum of the DST standard construction range covers centrifugal pumps, rotating piston pumps, liquid ring pumps as well as agitators with differing torque ratings.
- Individual intermediate solutions are also available.
- Customer specific special solutions
Construction of DST permanent magnetic coupling:
- outer ring
- coupling enclosure (the cover is in Hastelloy from size 75/10)
- inner rotor completely encapsulated in 1.4571 stainless steel
- magnet material Sm2Co17
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MINEX®-S
* Permanent magnet coupling
* Hermetic separation of the driving and driven side
* Resistent to aggressive media
* Torque: 3 Nm - 80 Nm
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Magnetic mixing is a way of complete sealed , undisclosed, bear corrosion, Static dead sealing through welding isolative sleeve replace dynamic mechanical sealing, which can completely solve the leaking problem of mechanical sealing. The equipment is mainly applicated for Pharmaceutical, Food machinery heating , resolving the material.
Application range: mixing devices various stainless steel reaction tanks and liquid-compounding tanks.
Working conditions: the places need high-standard sealing such as inflammable explosible, easy to leak
Features:
1. Static dead sealing through welding isolative sleeve replace dynamic mechanical sealing, which can completely solve the leaking problem of mechanical sealing.
2. Simple structure, east to dismantle, easy to clean, no dead space.
3. a mixing unit is installed on the bottom ,which can mix under few matter ,with unique mixing oars, and can be suitable to mix various mediums
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Application range: mixing devices various stainless steel reaction tanks and liquid-compounding tanks.
Working conditions: the places need high-standard sealing such as inflammable explosible, easy to leak
Features:
1. Static dead sealing through welding isolative sleeve replace dynamic mechanical sealing, which can completely solve the leaking problem of mechanical sealing.
2. Simple structure, east to dismantle, easy to clean, no dead space.
3. a mixing unit is installed on the bottom ,which can mix under few matter ,with unique mixing oars, and can be suitable to mix various mediums.
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Magnetic Technologies Ltd. offers a complete line of coaxial and disc type magnetic couplings for transmitting torque.
• Torque range is from 0 to 2000 foot pounds.
• Speed range from 0 to 10,000 rpm.
• Couplings can transmit torque through a non-magnetic barrier, making them perfect for pumps, mixers, and actuators.
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Magnetic couplings are a hermetically tight solution for pumps and agitators. Dangerous or precious media stay put in the closed system circuit. The power transmission (up to 315 Nm) occurs contact-free through magnets from the drive to the shaft running in the product. Magnetic couplings are thus the logical consequence for ecologically conscious buyers in the chemical industry.
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Conversion units can be retro-fitted in many areas, for example:
- PU machines
- Hydraulic applications
DST conversion units allow for the combination of the majority of different leading makes of pumps and drive motors.
We will evaluate specific applications to produce a functional combination, in order to utilise the advantages of "hermetically sealed" and "wear-free" in an optimum way.
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Conventional sealing gaskets are pushed to their limits with
different applications. Typical applications are found in
polyurethane facilities, refrigerating machines and vacuum
facilities. For these applications, you have the possibility
to equip the KF 4…80 with a magnetic coupling.
The magnetic coupling serves as a shaft seal and for the
transmission of the torque. The outer rotor of the magnetic
coupling is assembled on the engine shaft and the inner
rotor is assembled directly on the pumping shaft. The
torque is transmitted through the magnetic forces between
the outer and inner rotor. Between the two rotors, you
have the split case which hermetically seals the pump.
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Conventional sealing gaskets are pushed to their limits with
different applications. Typical applications are found in
polyurethane facilities, refrigerating machines and vacuum
facilities. For these applications, you have the possibility
to equip the KF 4…80 with a magnetic coupling.
The magnetic coupling serves as a shaft seal and for the
transmission of the torque. The outer rotor of the magnetic
coupling is assembled on the engine shaft and the inner
rotor is assembled directly on the pumping shaft. The
torque is transmitted through the magnetic forces between
the outer and inner rotor. Between the two rotors, you
have the split case which hermetically seals the pump.
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The co-axial coupling consists of three parts. The outer hub consists of a series of rare earth magnets that are ground, potted and attached to the inside diameter of a steel hub. The inner hub consists of a series of rare earth magnets that are ground, potted and attached to the outside diameter of a steel rotor. The inner hub is then completely sealed in stainless steel to protect the magnets and rotor from damage or corrosive substances. Typically there is a radial air gap of up to .275" (7mm) between the inner and outer hubs. Conventional bores and keyways are used to drive the inner and outer hubs.
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