Types of Guide Bushes Used in Injection and Stamping Molds

Digging out guide bushes on injection and stamping molds can be a real adventure. These little but critical pieces help molds perform well for product making. We will go through the various types of guide bush, consider what it is that makes them so important, weigh up their pros and cons and share with you some tips for picking the best guide bush for your job.

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Guide bushes are available in different shapes and sizes and can be made from various materials. Each variety is designed to do a specific job in the mold. Some common types include:

Straight guide bushes: They are pure and bite in the mold for straight-line movement.

Shouldered guide bushes – These Guide Pin And Guide Bush have a shoulder that supports and guides the mold components.

Collar guide bushes : These also feature a collar which assists in alignment of mating mold parts during use.

The Importance of Guide Bushes

Guide bushes assist in keeping the mold pieces in proper position during product production. They help prevent parts from getting stuck, wearing out too fast or breaking. Which means better quality products, and less time wasted. Without guide  guide bush, molds run the risk of getting stuck or jammed, which can cause expensive repairs and delays.

Comparing Guide Bushes

There are pros and cons to each type of guide bush:

Straight guide bushes: Easy to work with and inexpensive, but may not provide as good support as others.

Shouldered guide bushes: Gives better guidance but are generally more difficult to make.

Collar guide bushes: They can help to line up parts, but they are more expensive and require more space.

Consider what your mold requires before selecting a guide bush.

How to Select Guide Bushes

When choosing a guide bush for your mold application, consider:

What kind of material are you using?

The mold design—how intricate it is

X How much you plan to produce

Consult a mold designer or maker as to which guide bush would work best for you. And don't forget to check and maintain guide bushes so they run smoothly and have a long life.