A permanent magnetic sine chuck has extremely powerful magnet chucks. It is equipped with stationary magnets in the top plate along with a movable magnet core. The holding power of the magnetic sine chuck is magnificent. The average power provided by the sine plates can be up to 110 pounds per square inch, which is nearly 2 times greater than a traditional chuck.
In the metalworking industry, magnetic sine chuck applies electromagnetic, electro-permanent, and permanent magnetic materials to help the work of clamping and unclamping of the target components. It saves time and protects the products that are under process. Usually, the use of the components of the magnetic plates varies. Also, most of the chucks are compatible with one another. It provides flexibility and convenience to those working in a factory. It has become a commonly seen tool in the metalworking industry. The mechanisms allow the processing work to be done much easier.
The device resembles a rectangular box, or is sometimes circular. The top surface is usually flat and smooth with a few control buttons or keys inserted on their side. Inside the workholder, a series of components are placed and arranged to increase the pulling strength, or the “flux” of the device. Usually, the designer arranges the inserts (the components) in parallel to maximize the flux. This is to make the chuck secure any materials placed on the device.
The magnetic sine chucks are available in different designs, which can be categorized into the permanent, electrically activated, and electric-permanent magnets chucks.
1. Permanent sine chucks.
The permanent magnetic sine chucks are the best choice for the purpose of holding lighter work pieces. It does not require power to active, which is how it gets its name. During the operating phase, the user can activate the whole system (not the chuck) with a key. When it slides into an insert of the device, the alignment of the conductive material built inside the device will be turned on, and the whole setting can be turned on/off with a simple action. However, the permanent insert is more suitable for smaller scaled objects since the holding power is limited. For larger devices, it would take much more physical power to lift and hold.
2. Electrically-activated sine chucks
Unlike the previous type, the electrically-activated chucks are not switched on by a key. Instead, the activation relies on an electrical switch that allows a great current to provide the gripping power required in the working site. That is why they are sometimes referred to as the keyless chucks.
Generally, this kind of device can provide stronger power. However, it also requires a constant supply of power source to function continuously. If power is interrupted or disconnected, the holder will cease to function immediately, which can pose safety issues. Thus, with the implementation of such devices, backup power options are required.
3. Electric-permanent sine chucks
The design of the device combines the advantages of the previous two. As a hybrid product, it is usually more powerful, can be switched on and off with an electrical switch. However, the price is usually higher than the two above.
When dealing with shaping, turning, drilling, or grinding work, the magnetic sine chuck allows the work to be done more smoothly and precisely. Different from mechanical clamping, the device provides constant and stable gripping power that matches heavy-duty works.
The mechanism of sine plates is fairly easy to understand as well. It only accommodates the function of “turn on” and “turn off,”. The smart design actually makes the whole process safer and more secure. On the entire body of the target, the chucks provide an equal amount of pressure so that you won’t need to worry about the object falling. You can operate one of these devices safely without hurting yourself. In the milling process of cutting or shaping., the chucks provide full and strong support that reduces physical feedback to the object itself, which makes the whole working process faster and more precise.
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