This section provides an overview for lifter pins as well as their applications and principles. Also, please take a look at the list of 9 lifter pin manufacturers and their company rankings.
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A lifter pin is one of the components of a "lifter" that raises or lowers a product or material. They are used in combination with a spring to raise or lower a workpiece.
The lifter pin is installed in the hole where it is housed together with the spring and the screw plug that serves as its fixing base, and the lifter pin raises and lowers the workpiece on the other hand.
Therefore, the diameter of the hole in which the lifter pin and spring are housed must be designed in consideration of deflection and rattling.
Lifter pins are used in factory automation production lines to position products and components as they flow by, and when processing is complete, the pin is released and naturally lifted to the next process.
Lifter pins are also used in press machining to smooth the level surface of the workpiece surface during pressing, and when the press is released, they are lifted by spring force to contribute to the removal of the finished product.
In addition, lifter pins are used to secure substrates in place in semiconductor manufacturing equipment and to move them after processing.
There are many variations of lifter pins for different applications, but the following is an example of the specifications of the most orthodox types.
An example of a standard type lifter pins specification is 10 mm in length with a shaft diameter of 2 mm (flange shaft diameter 3 mm) and a tip radius of 0.3 mm. The material is SK4, the screw is M4 x P0.7 h4, the tolerance is 0/-0.05 mm, and the hardness is 53 to 58 HRC (the flange part is annealed to 45 HRC or less).
In addition, lifter pins are available in square or block shapes (two pins) in addition to the standard cylindrical shape, and are also manufactured with a tip shape other than flat.
In addition, lifter pins are available with spring holes, pilot relief holes, air holes, magnets, etc. One type of lifter pin is the "guide lifter," which "kills two birds with one stone" by serving as a lifter and also fixing materials (thin plates) with its guide portion.
There are lifter pins that have a relief hole to prevent the pilot (used for positioning in thin plate processing) from pushing down the workpiece in the opposite direction.
*Including some distributors, etc.
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