What You Need to Know About Military Specification Injection Molds

There are several benefits of military specification injection molds. This material is less expensive than metal and is also stronger than it. It is also easier to produce than metal. However, aluminum tooling may be more suitable if you’re not making large quantities. Hard steel is better if you need a mold with highly polished lenses. Moldmaker like the military specification injection mold supplier may use hard milling in the creation of these molds. It helps them improve their performance by reducing secondary machining steps.

Less Expensive

Injection molding is a highly efficient manufacturing process that produces precision-made parts in minutes. These components are often delivered within 15 days. In this article, we discuss some factors that affect injection mold costs. One of the most significant is tool material selection. While tool steel is more expensive than aluminum, it is more durable and has superior wear resistance. Therefore, tool steel is the material of choice for high-volume projects.

Costs of plastic injection molds vary widely depending on the number of cavities, complexity, and size of the parts. The price also depends on the surface finishes or textures applied to the mold. However, these molds may be less expensive than metal versions of a specific part. Aside from the cost, plastic injection molds are ideal for product development and rapid prototyping, as they allow manufacturers to iterate and refine designs without compromising performance.

Stronger than Metal

Several reasons why a Military specification injection mold is more robust than metal. First, steel is more challenging and more durable than aluminum, making it the better choice for high-precision areas and complex resins. Second, steel is more cost-effective than aluminum, making it the best choice for everyday items such as toys, gears, bearings, and automotive parts. Finally, steel is easier to work with in high-heat situations.

Another reason a Military specification injection mold is more vital than metal is its material. The base of a mold is the supporting structure for the part. It must resist the molding machine’s clamp force and the plastic pressure produced during the process. In addition, the mold base should be solid. The highest hardness level for a mold base is 280 BHN, while wood has a hardness of 10 BH. In addition, hardened steel mold bases are much stronger than typical steel, able to resist the constant stresses created during the molding process. This increased strength level protects the mold from damage after the molding process is complete.

Easy to Produce

To produce a Military specification injection mold, a manufacturer should be familiar with the material to be molded and the design process. This type of molding can be done with steel or aluminum molds. On the other hand, silicone requires hardened steel tooling. To produce a mold for silicone, the manufacturer must carefully measure the part to ensure that it has the proper dimensions. After this, the mold can be fabricated to produce the required details.

The first thing to consider in the design process is the parting line, the point where two halves of the mold come together. This choice will be obvious for some applications, but for others, it is not. The first step in designing a mold is determining the direction of the line of draw, which determines the direction of opening and closing the mold. For example, in Figure 1, the two halves of the mold are labeled A and B. The A-side is labeled blue, and the B-side is red. It is important to determine the parting line to ensure that the mold opens evenly.


The right mold is essential for your military-specific product. This mold is made of engineering-grade thermoplastics resistant to moisture, bacterial growth, diluted acids, and abrasion. The mold can be customized for specific colors and finishes. It will also be resistant to corrosive elements and withstand high g-forces. If you’re looking for a mold that will be durable, cost-effective, and meet military specifications, consider a military-spec mold.

Injection molding costs are primarily influenced by the complexity and time required for the mold to be built. By following design for manufacturing principles, you can keep your tooling costs to a minimum. Look for mold providers who offer 3D modeling, CAD part design, and mold fill simulation. These advanced technologies can help you identify any bottlenecks in the design process and improve manufacturability. In addition, injection molders can help you determine whether a design is feasible for manufacture.


If you’re looking for a way to make highly complex plastic components quickly and efficiently, consider the advantages of using an Adaptable Military Specification Injection Mold. This mold can be customized for different environments, including high or low temperatures, electrically intensive environments, and corrosion-prone ones. This type of mold is also available in different colors and finishes. You can even customize the mold for a specific finish.

In addition to being affordable, military-specific injection molds can be made from engineering-grade thermoplastics. These materials resist moisture, bacterial growth, diluted acids, and corrosion. They’re also lightweight and durable. In addition, some plastics can incorporate specialized compounds and coatings. Contact SEA-LECT Plastics today if you’re interested in using an Adaptable Military Specification Injection Mold.