Electric motors with permanent magnets - Import export

Politubes, in conjunction with DuPont, has developed a special spiral-wound tube made of heat-shrinkable polyester (Mylar HS), which enables automated fixing of permanent magnets, thereby reducing the cost of assembling these motors.Important advantages are: 1.Unlike very expensive steel rings, the spiral-wound tube also wraps around and protects the ends of the magnets, which are also subject to corrosion. 2.The trimming that often has to be done during the assembly process when using rigid rings is avoided; the Politubes spiral-wound tube adheres perfectly to the magnets, taking their shape and protecting them from cracking and scratching; this also guarantees perfect balancing of the rotor. 3.Part of the assembly process is removed, since potentially costly and often manual bandage with tape impregnated with epoxy resins can be eliminated; this avoids as well lenghty resin activation time in oven; productivity is thereby increased and hidden production costs reduced.

Test facility for the development and quality control of electric motors. The holding torque of the permanent magnet is tested, plotted and evaluated. Customized Solution Request of our customer: The motor is used to drive / open and close a car tailgate. In the event of a power failure, the holding force of the permanent magnet must be greater than the weight of the tailgate so that it stops safely. For this purpose, the cogging torque of the permanent magnet poles is measured over one revolution depending on the angle of rotation. Acquisition of torque via rotation angle Graphic recording of the test sequence Storage of the test results in Excel Simultaneous viewing of up to 20 variable test sequences from the database, shown in color. Variable test speed Reproducible test process thanks to constant speed independent of torque.

Applications: •Magnetic rollers for copier and laser printer •Permanent motor magnets (rotors & other components) •Magnetic rings for aerodynamic component •Color Monitor/TV purity convergence magnet •Binders: PA6, PA12, PPS Characteristics •Binders: PA6, PA12, PPS •Can be magnetized in any direction, suitable for the radial or axial(face) multi-polar magnetized magnet. •One time forming the complex shape. •Forming the shape with the shaft or bushing one time to reduce assembly processes and improve assembly accuracy. •No surface treatment.

PMmotors with rotorcage for line start The pmexcited reluctance motors are an alternative to the reluctance motors and can be used in identical applications typical for synchronous motors.

The synchronous servomotors of the series MN are brushless permanent magnet synchronous servomotors with sinusoidal back EMF and with neodym permanent magnets at the rotor. Therefore they are particulary suitable for high-quality servo applications, for example positioning demanding high standards of dynamics and accuracy. Standard configuration of the motors: 2-pole resolver feedback connectors, straight, 1" flange design B5 thermo protection PTC protection class IP65 plain shaft RAL 9005 Further options and equipment are available on request. Maybe options and non-standard equipment can have an effect on the dimensions of the motors. We therefore recommend to consult about it with us before ordering.

We supply permanent and plastic-bonded magnets made of ferrite, neodymium, AlNiCo, samarium cobalt. Our magnets meet the correct magnetic specifications. Reliability, quality and safety start at the source. That’s why we work with a network of inspected and certified manufacturers and suppliers of permanent magnets. We hold the following certificates: ISO 9001, IATF16949 and AS9120. We guarantee the traceability of all our magnets.

Submersible motors from oddesse are used as pump drive for applications with special requirements, such as in mining, utilisation of geothermal energy as well as in offshore and marine technology. EXECUTIONS - Three-phase asynchronous motors for 50 or 60 Hz and voltages up to 1,000 V - Water-filled motors with rewindable stators, dynamically balanced and with high resistance to thermal stress High-quality thrust bearings that operate in both rotation directions and possess a high load-bearing capacity - Water-lubricated radial bearings for a horizontal and vertical motor application - Windings for temperatures up to 80° C of the pumped medium available - Speed regulation between 30 and 60 Hz via frequency converter possible - High-quality materials for application in service, industrial and seawater PERFORMANCE RANGE (AT 50 HZ) Up to 45 kW/60 HP with 6" motors Up to 132 kW/175 HP with 8" motors Up to 220 kW/300 HP with 10" motors Up to 400 kW/550 HP with 12" motors