In plastic product, there are some under-cut structure. How many under-cut structure you have seen?

Some product only have one under-cut, some product has more than one under cut surface, some product whole four surroundings has under-cuts, some product has under-cut in the under-cut.

What's the meaning of under-cut? Under-cut means when you see from the top view, the highest point is the reference point, the under surface you can't see, the hidden surface is called the under-cut. If you have a ruler then you will see it easily.

When you are checking the draft angle from a 3d drawing, you will find the under-cut area. If your product has under-cut, you need make some structure to deal with the under-cut, the most common structure is slide, lifter, ejector pin. etc.

Green Vitality has rich experience in dealing with all kinds of under cut products, can optimize the best mold design and use the best way to demold the product. If you need make complex product with under-cuts, welcome to contact us.