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Advances in Stepper Motors: The Disc Magnet Technology

From Portescap
 

 
Stepper Motors have gained tremendous success in recent years, thanks in part to the progress of the semiconductor industry. Stepper motors' advantage of speed and position control without feedback is becoming increasingly attractive to industries sensitive to cost. There are several designs that can be used for stepper motors, including rare earth permanent magnets. These magnets offer designers opportunities to obtain performance attributes that rival brushless DC technology.

Products & Services
Linear motors generate force only in the direction of travel. They are capable of extremely high speeds, quick acceleration, and accurate positioning. Search by Specification | Learn more about Linear Motors
Gearmotors consist of an AC or DC motor with an integral gearbox or gear head that steps delivered speed up or down. Search by Specification | Learn more about Gearmotors
DC motors are most commonly used in variable speed and torque applications. They include brushless and gear motors, as well as servomotors. Search by Specification | Learn more about DC Motors
Brushless motors are synchronous electric motors that have a magnetically (AC induction) or electronically (DC) controlled commutation system instead of a brush-based mechanical commutation system. Search by Specification | Learn more about Brushless Motors
DC servomotors are generally small and powerful for their size, and easy to control. Common types of DC servomotors include brushless or gear motors. Search by Specification | Learn more about DC Servomotors

Product Announcements
Portescap - Portescap Brushless DC Motors
Portescap offers the broadest miniature and specialty motor product line in the industry, including Brushless DC technology. With speeds up to 1,000 rpm and Frame sizes from 12.7 mm (.5 in.) to 58 mm... (read more)
Portescap - Stepper Digital Linear Actuators - 26DAM
Achieve your targets - Fast, Powerful and Precise positioning are available with Portescap's digital linear actuators. Simplify your design - digital linear actuators provide direct coupling to your... (read more)
Portescap - Brushed DC Motor, Brush Ironless DC Motors
The Portescap 25mm Brushed Ironless DC Motor, with a unique carbon brush commutation, renders benefits of long usage life and efficiency has excelled in applications ranging from wafer handling and... (read more)
Portescap - Sterilizable Brushless DC Slotted Motors
Portescap's sterilizable Brushless DC slotted motors are uniquely designed to meet the requirements of sterile and other demanding environments, from surgical tools to aerospace and defense... (read more)
Portescap - Stepper Motors - 40% More Torque h3 hybrid
Portescap, a Danaher Motion company, introduces the new h3 stepper, high torque housed hybrid motor. When compared with similar step motors, these housed hybrid motors provide industry-leading torque... (read more)
Ningbo Newland Magnetics Co., Ltd. - Arc Magnets
Arc magnets, known as the Third Generation of Rare Earth magnets, Neodymium-Iron-Boron (NdFeB) magnets are the most powerful and advanced commercialized permanent magnets today. Since made from... (read more)
Ningbo Newland Magnetics Co., Ltd. - Black Epoxy Coating NdFeB Magnets
Black Epoxy Coating NdFeB Magnets, known as the Third Generation of Rare Earth magnets, Neodymium-Iron-Boron (NdFeB) magnets are the most powerful and advanced commercialized permanent magnets today. (read more)
Ningbo Newland Magnetics Co., Ltd. - Coating NdFeB Magnet
Coating NdFeB Magnet, known as the Third Generation of Rare Earth magnets, Neodymium-Iron-Boron (NdFeB) magnets are the most powerful and advanced commercialized permanent magnets today. Since made... (read more)
Eriez Magnetics - Rare Earth Plate Magnets
Eriez Magnetics continues to solidify itself as the preeminent world authority in permanent magnet technology with the unveiling Xtreme™ Rare Earth Plate Magnets. Customers in the food and... (read more)
H2W Technologies - Linear Brakes
Linear permanent magnet brakes are a fail safe, power free, deceleration system that is used in conjunction with a metal reaction plate. Ceramic or rare earth magnets are bonded to a steel back iron... (read more)

Topics of Interest
Experts say the single most important advance in PM motor technology was the introduction of rare-earth magnetic materials in the mid-1970s. Samarium-cobalt and, to a lesser extent, neodymium has... (Read More)
The shaft of a stepper motor moves between discrete rotary positions typically separated by a few degrees. Because of this precise position controllability, stepper motors are excellent for... (Read More)
Specialty Motors General Principles of Operation-Stepper A step or stepper motor is one in which electrical pulses are converted into mechanical movements. A standard DC motor, for example, rotates... (Read More)
With advantages such as high efficiency, compact size, and high torque density, permanent magnet (PM) motors are becoming increasingly competitive in many applications. PM motors use permanent magnets... (Read More)
Linear Stepper Motor Systems Linear stepper motor systems are based on the principles of the stepper motors previously presented. The stepper drive system is basically a servo system, but often... (Read More)