Newsletter   FREE GlobalSpec e-Newsletters
Receive the latest news, trends, and technology relevant to your work.
(See Titles)

Electromagnets Reject Residual Magnetism

From GEEPLUS Inc.
 

 

Electromagnets are designed with ejector pins to enable them to overcome the problems of residual magnetism occurring when power to the device is switched off.

A new range of electromagnets from Geeplus have been designed with ejector pins to enable them to overcome the problems of residual magnetism occurring when power to the device is switched off Residual magnetism is common in electromagnetic devices due to unavoidable very small air gaps which occur within the unit

In a frame measuring only 20mm square, the new DSM2032H and DSM2035H hybrid stepping motors from Geeplus offer 200 steps per revolution, making them ideal for applications requiring precise position.

Although the use of the ejector pin slightly reduces the holding force of the magnet, benefits are gained from using a device which suits applications where full release and separation of the armature from the device is critical.

Product Announcements
Integrity Testing Laboratory Inc. - UltraMARS
UltraMARS forUltrasonic Measurement of Applied and Residual Stress... (read more)
Bunting Magnetics Co. - Grab and Release Materials on Command
Electromagnets provide an efficient and economical solution for holding and handling parts safely and securely. Available in a number of shapes and sizes, Bunting Electromagnets require little... (read more)
ZF Industries Inc. - Industrial Drives Group - Hysteresis Brakes, Clutches & Control Units
Hysteresis Brakes, Clutches & Control Units from ZF Industries, Inc. ZF Tiratron, i.e. the combination of the brake with the electronic control unit or the clutch with the electronic control unit,... (read more)
AGI - American Grippers Inc. - Tips on tooling automated seal assembly equipment
A way to control o-ring seal placement is to step the spreading tooling jaws. On the six jaw unit every other spreading jaw will be shorter. The ejector jaws push the o-ring off the first three... (read more)
Lepel Corporation - Cap Inspection System
The Cap Inspection System is specifically designed to be used with any induction heating cap sealing equipment. The advanced features and the flexibility of the system allow it to monitor a wide range... (read more)
Lambda Technologies - Residual Stress Analysis
Residual stresses are vital to the overall strength and life of critical components. Most processes involved in the manufacture of a component can cause residual stresses that will be either... (read more)
Ningbo Newland Magnetics Co., Ltd. - Magnetic Hooks-Customized Designs
Magnetic Hooks-Customized Designs, we specialize in producing and assembling NdFeB and Ferrite Magnet Hooks, which can hold about anything you need to keep within easy reach. You also use those strong... (read more)
 
Topics of Interest
PRINCIPLES, CHARACTERISTICS, AND MANAGEMENT OF DC GENERATORS (DYNAMOS) 1. Direct-current generators impress on the line a direct or continuous emf, one that is always in the same direction. (Read More)
Overview The development of underwater electroacoustic transducers expanded rapidly during the twentieth century, and continues to be a growing field of knowledge, with many significant... (Read More)
Magnetic ordering, such as ferromagnetism, antiferromagnetism and ferrimagnetism, arises from the broken symmetry of time-reversal or spin-rotation. There are two physical models to describe the... (Read More)
THE MAGNETIC CIRCUIT 34 Fundamental Concepts A piece of iron is said to be magnetized, to possess magnetism, to be in a magnetic state, or to be a magnet if it is capable of attracting or... (Read More)
1.1 Motivation The history of electronics has been inextricably linked with the growth of the communications industry. Electronic communication served as a major enabling technology for the... (Read More)