Latching-typed of electromagnet is kind of open frame type but with advantage of permanent magnet. Plunger will move toward to the center of solenoid body while energizing, but it will be still “holding” at the same position even after de-energizing because of the existing of generated magnet field. With the characteristic, customer could get the benefit of power saving, and also avoid the risk of coil being burnt out.
| Category | Insulation Class | Coil Temperature | Insulation Resistance | Insulation Dielectric | Range of ambient temperature | Lifespan |
|---|---|---|---|---|---|---|
| MTOK series | A class (105°C) |
Under 100% duty cycle, temp. increasing range could up to 65°C |
100MΩ/DC 500V (Room temperature / Room humidity) |
AC 1000V, 50/60 Hz, 1Min (Room temperature / Room humidity) |
-20°C ~ +40°C | More than 500,000 |
| Category | MTOK series |
|---|---|
| Insulation Class | A class (105°C) |
| Coil Temperature | Under 100% duty cycle, temp. increasing range could up to 65°C |
| Insulation Resistance | 100MΩ/DC 500V (Room temperature / Room humidity) |
| Insulation Dielectric | AC 1000V, 50/60 Hz, 1Min (Room temperature / Room humidity) |
| Range of ambient temperature | -20°C ~ +40°C |
| Lifespan | More than 500,000 |
Depends on client’s mechanism mounting design, shape of latching-typed electromagnet could be re-designed as open-frame, tubular, or any other type. There are also various style of coil design, such as “single coil”, “double-layered coil”, “double coil”, or some other tailored design.
Single Coil (Customization)
Single Coil (Customization)
The latching type single coil design is to maintain a single group of coil design. When the current is passed, it passes through the coil, a magnetic field is generated and the plunger is drawn in. After the device is opened or closed by the action of the plunger, the coil can be powered off at that time, and the permanent magnet is used to hold and maintain the plunger in the same position to achieve the function of power saving. If the plunger needs to be returned, it can be used by reverse voltage energizing.
Double-layered Coil (Customization)
Double-layered Coil (Customization)
Usually a double-layered coil electromagnet has three lead wires to control the pull-in and release action. The coil structure is divided into inner-coil and outer-coil, and one of the lead wire is called collinear. By this kind of design, customer could switch the plunger status as they wish.
Double Coil (Customization)
Double Coil (Customization)
Double-coiled electromagnet is specific designed for the requirement of long-termed energizing. First coil is used to generate pull-in force by giving high current; second coil is used to maintain the plunger position at zero stroke by giving tiny current. With this kind of design, electromagnet could work with 100 duty cycle with chronic energizing status.
Holding force will be affected by surface flatness, smoothness, or even the thickness of electro-plating. Except to control the quality and accuracy of incoming materials, Magtek also considers the different using condition and manufacturing process, customized relevant test fixture, incorporate the range of holding force and releasing current into standard inspection in stream line.
100% inspection with weight loading
Customized fixture for releasing current test
Automated pull-in force tester and AQL inspection report
100% inspection with weight loading
Customized fixture for releasing current test
Automated pull-in force tester and AQL inspection report
