Rotational Mold Inserts / Roto Mold Inserts

If you've ever seen a Rotational Mold Machine it's a sight you wont forget because they are not only big but they look kind of like a large gyroscope.

Basically a Rotational Mold Machine operates by spinning the mold while molten plastic is moved by centrifugal force into the far reaches of the mold. Plastic kayak's, large plastic bins and storage units are examples of products formed by Rotational Molding.

Oftentimes a fastener is desired on the product to attach handles, knobs, closures etc. So like a molded in insert, the rotational mold insert is installed in place on the removable stud attached to the mold. When the finished product is removed from the mold the fastener is then in place. The dumbbell shape is common for rotational molding because it allows for a large gap for the plastic to fill in to provide excellent retention. The rotational mold process doesn't always allow for a high degree of precision regarding the wall thickness and placement of the plastic because of the use of centrifugal force to move the plastic.

Apex Fasteners provides a variety of Rotational Mold inserts in both brass and stainless steel. We begin with both hex and square bar stock to optimize retention. We can also manufacture specials to print. Please follow the link below for more specific information:
http://www.apexfasteners.com/Rotational_Mold_Inserts.htm