Plastic Injection Mold Types

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By Jeremy Losek, Sep 14th, 2021

Plastic Injection Mold Types

Mold Types to Fit Your Production Volume

ICOMold is a plastic injection molding company that offers a variety of choices in plastic injection mold types, depending on the quantity of parts you need manufactured.

Depending on how many plastic parts you want to produce with your mold, our engineers will select the appropriate steel material for it, and you’ll get a tooling life warranty for the amount of your production volume. If you choose our production mold option, we provide a lifetime warranty for unlimited production. As long as we are making the parts for you in our production facilities, we will maintain, refurbish or replace the tool as needed at our cost.

P-20 is a general purpose mold steel designed for the plastic mold industry, and it is the steel we use for production molds. However, other types of steel are also used for molds designed for fewer cycles. For in-house molds, the customer owns the tooling and mold frame. (For export molds, the customer receives the mold frame with the tooling).

The first table below lists the characteristics of the molds that we use to run your parts for you in our facility. The second table lists the different types of export molds (we make the mold and ship it to you), based on number of cycles.

In-House Molds

Mold Type Tooling
Tooling Life
Tool Ownership
(Cavity & Core)
Mold Frame
Production Mold P20 Unlimited Customer Customer

Export Molds

Mold Type Tooling Life Cycles Description
Class 101 1M Built for extremely high production. This is the highest-priced mold and is made with only the highest quality materials.
Class 102 500,000-1M Medium to high production mold, good for abrasive materials and/or parts requiring close tolerances. This is a high-quality, fairly high-priced mold.
Class 103 100,000-500,000 Medium production mold. This is a very popular mold for low to medium production needs. Most common price range.
Class 104 10,000-100,000 Low production mold. Used only for limited production preferably with non-abrasive materials. Low to moderate price range.
Class 105 Up to 10,000 Low volume only. This mold will be constructed in the least expensive manner possible to produce a very limited quantity of parts.

To learn about the advantages of steel molds over aluminum molds, visit the aluminum molds page of our website.

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