Following the curing process, we cool the material to solidify the thermoset plastic prior to ejecting the finished part. From there, we can perform any secondary operations such as machining, assembly, finishing and quality control before sending the thermoset components to our customer.

Heating the compression or injection molded part then creates a chemical reaction that permanently sets its shape. (This distinguishes thermoset plastics from thermoplastics, which can be melted and re-molded.)

Whether you need to transfer an existing mold set or design and build a new mold, allow us to demonstrate our thermoset molding capabilities at Leech and highlight how you can benefit from our one-stop contract manufacturing services.

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The 3D CAD models within the final mold design are then used within our CAM software. Our CAM programmers can tell the software how to machine the raw metal into the final mold shape and the software creates the commands to execute in our CNC machines.

Our expertise in designing, building and repairing molds sets us apart from most other plastic molders and reduces the time to bring new products into production. Because we handle mold design, building and maintenance in-house, we have:

Consider Leech Industries for your thermoset molding solutions. Contact us for a reliable, comprehensive approach to your unique needs.

At Leech, we offer a range of plastic molding capabilities due to our highly capable technicians and cutting-edge contract manufacturing facilities. Because we have in-house design, tool making and a complete suite of plastic molding capabilities, we are aligned to provide one-stop production manufacturing services.

At Leech Industries, we offer capabilities to produce either thermoset or thermoplastic parts ranging from high mix/low volume to low mix/high volume parts. We pride ourselves on having the capability to handle repetitive work, ranging from tens of thousands to millions of parts annually. We’re committed to reducing lead times and turning around projects efficiently, all while providing a seamless experience for OEMs eager to switch from an overseas thermoset molding vendor to a US-based partner.

This process involves using a copper or graphite electrode to electrically burn the specified mold shape into the mold component. EDM machining is slower and more costly than CNC machining, and it is only used for mold features that are not practical to cut with a CNC machine, such as sharp corners and very thin rib features. The steps of this method include:

Whatever type of plastic injection mold you need, we understand that your injection mold purchase will become a significant asset to your business. For that reason, we warranty the production life of molds we build for our customers for the life of their production requirements.

All of MSI customer molds are built right here inside of our Michigan manufacturing facility. Our mold build area is staffed with experienced designers and machinists using the most modern software and CNC machinery. After customer part designs are finalized and approved for manufacturing our team will design and build robust trouble free plastic injection molds for your production requirements.

High-quality plastic parts start with a quality built injection mold. The mold for your custom parts can be a big investment, so we’ll work with you every step of the way to ensure you’re familiar with the different types of molds for plastic injection that are available, and we’ll make sure you’re completely informed before you invest. Below we provide you with a valuable understanding of basic injection mold construction types and the benefits of each.

Our customers view Leech as their go-to partner, whether they need diversification in supply or they’re seeking a reliable shop to help them kick off a new project. At Leech, we take on complex challenges and respond strategically thanks to our diverse range of in-house capabilities.

Thermoset plastic molding creates intricate, durable, heat-resistant parts from thermosetting plastic materials, which are typically processed using compression or injection molding techniques.

We will help you better understand plastic injection mold construction and their cost. The quality of your custom plastic parts will first depend on the quality of your mold. Let us quote your next injection molding project and we will work closely with you to make your project a success!

We provide high-quality contract manufacturing services to OEMs looking to reshore to the United States their thermoset-based part needs. Our investments in specialized thermoset molding equipment make us an excellent partner for customers seeking a reliable, sophisticated and timely supplier. What sets us apart from our offshore competitors?

CNC machining uses advanced computer technology to cut complex and precise surface shapes into the mold materials. Our mold designers create a 3D model with the required mechanical dimensions and shapes of the mold details using CAD software. Final mold designs that are ready for machining can take one or two weeks to complete.