There are different types of ejector pins. To understand these facts, you need to comprehend the definition of an ejector pin, which in this case, is a pin often used in the process of injection molding when it comes to pushing the actual finished plastic product or die.
The pins may be made of alloys as well as stainless steel. They may also be made of iron. This highly depends on their functionality coupled with structure. One vital criterion for selecting an ejector pin is the type of work it shall be performing in the long run. In this case, you will realize that there are:
- Through Hard Pins
The ejector pins have a consistent hardness throughout the diameter of the ejector pin. This pin is ideal for plastic injection molds with working environment temperatures below 200 degrees Centigrade.
- Nitride H13 Pins
Nitride H13 ejector pins have a better life expectancy in environments above 200 degrees centigrade. The pins are ideal for die casting. However, these might not be ideal in temperatures approaching 1000 degrees centigrade.
- Black Ejector Pins
Black ejector pins are ideal in temperature environments above 1000 degrees centigrade due to a specialized black surface coat on the entire pin. The black surface also doubles up as lubrication hence is ideal for automobile injection molding. In comparison to the other types, the black ejector pins are pricier
Another criterion that is important in choosing the type of ejector pin is in its application. For these criteria we have
- Straight Ejector Pins: As their name suggests, they take a straight shape in general. This implies that even in the machine, it will take a straight shape.
- Stepped ejector pins: Stepped ejector pins help in keeping the die-cast parts from bending and are ideal for aluminum mold casts.
- Mold Ejector Pins: These are commonly plastic mold parts that are used for the separation of products away from the mold.
There are various kinds of pins found on the market. As with any product, it becomes challenging for users to choose the right ones. Selecting the wrong ejector pin would only brew your trouble. For that reason, the selection process needs to be appropriate. Many people will only comprehend the value of material when choosing an ejector pin. But, in our blog post, we have focused our discussion on the working temperature.
Typically, the working temperature of an ejector pin is important as it impacts the durability of the device. If the temperature happens to be high, and the pin is designed to work in a low-temperature environment, then the pin will not last long. This implies that durability has been interfered with.
Final Thoughts
With the rise in different types of ejector pins, there is the need to select one that suits your needs carefully. The three major types of pins are commonly found on the market. That is why you should always be familiar with them. While they can all be utilized, it is essential to comprehend the facts appended to a typical ejector pin, just like in this article.
