Rotary Magnets  Manufacturers, Traders, Suppliers

Magnetic Separation is one of the most common and important physical separation techniques and there are many varieties of magnetic separation equipment available. The basic concept of a Magnetic Separation is that magnetically susceptible particles or bodies are separated from non-magnetic particles. However, the simplicity stops there. To enable different levels of separation from a wide range materials, there is a extensive range of different Magnetic Separator designs.
Depending on the magnetic susceptibility, minerals can be paramagnetic, ferromagnetic, or diamagnetic.
Magnetic Separator Applications: Recycling, Mineral Processing and Ceramics, Mining and Quarrying, Food Production,ect.

All synchronous motors & solenoids that we offer on our website are characterized by maximum performance and excellent product quality. We offer high quality synchronous motors as well as solenoids in a wide variety of designs.

The electromagnets listed below are examples of solutions implemented in series.
Magnetbau Schramme develops customised solutions. If you are looking for a suitable electromagnet for your series project, simply contact us.
Our team is guaranteed to help you.

Schramme offers you everything from one source Development and design of the optimum electromagnet: * Proportional solenoids for control * Lifting and holding solenoid systems for switching, holding and moving * Electromagnetic clutches or brakes for power transmission * Electronics for controlling and signal processing of the electromagnet * Integrated sensor technology * Embedding in your system * Mechanics around the actuator

A permanent magnet rotor assembly is a crucial component in various applications, including BLDC motors, generators, and magnetic couplings. It consists of a rotor with permanent magnets, such as neodymium magnets, mounted on it to ensure an efficient and reliable magnetic field generation. The interaction between the magnetic field produced by the rotor and the stator (the stationary part of the motor or generator) enables the conversion of electrical energy into mechanical energy or vice versa.
The rotor assembly portfolio includes rare-earth magnets such as neodymium magnets and Samarium-Cobalt to ensure maximum magnetic field strength and excellent performance. And the multipole ring magnets provide a uniform magnetic field and contribute to enhanced motor efficiency.
The permanent magnet rotor assembly, featuring neodymium magnets and multipole ring magnets, is the ideal choice for those seeking high-quality, reliable, and efficient magnetic solutions for their BLDC motors and other applications.

Neodymium Magnets Features & Characteristics
Grades & Materials - Neodymium magnet materials in both standard and premium grades for reduced production and lead times. We offer sintered neodymium magnets in grades ranging from N30 to N55.
Sizes & Shapes - Sizes for standard Neodymium Iron Boron rare-earth magnets range from a few millimeters to approximately 150 mm, while assemblies can weigh up to several tons. Standard shapes include discs, blocks, rings, and arc segments in various sizes and grades. Non-standard shapes and sizes can be custom fabricated exact specifications from raw stock.
Temperature Considerations - Neodymium magnets are temperature sensitive. For applications in which the magnet may be exposed to temperatures in excess of about 250°F (120°C), careful consideration must be given to the choice of magnet grade and the magnetic circuit.
Manufacturing Methods - Due to the relatively brittle nature and high-magnetic strength of NdFeB magnets, cutting and grinding should be done prior to magnetization. We are fully equipped to machine these materials to virtually any shape and size for your project’s specialty requirements using our in-house grinding and EDM facilities. Finishing to tolerances of +/-0.05mm can be achieved, as required.
Surface Treatments - Neo magnets are susceptible to oxidation, so painting, epoxy coating, or plating is highly recommended to prevent corrosion. The common surface treatments include nickel plating, zinc, or epoxy coatings.
Handling & Storage - Neodymium materials are relatively brittle, but are magnetically very strong. They must therefore be handled carefully to avoid injury to personnel and damage to the magnets.

Neodymium magnets have replaced alnico and ferrite magnets in many of the myriad applications in modern technology where strong permanent magnets are required, because their greater strength allows the use of smaller, lighter magnets for a given application. Some examples are:

• Head actuators for computer hard disks
• Mechanical e-cigarette firing switches
• Locks for doors
• Loudspeakers and headphones
• Mobile phone speakers, taptic feedback and auto focus actuators
• Magnetic bearings and couplings
• Benchtop NMR spectrometers
• Electric motors
• Electric generators for wind turbines (only those with permanent magnet excitation)
• Voice coil
• Retail media case decouplers
• In process industries, powerful neodymium magnets are used to catch foreign bodies and protect product and processes
• Identifying precious metals in various objects (cutlery, coins, jewelry etc.)