Insert Molding Services

Certifications: IATF16949:2016 | ISO9001:2015

Insert molding is a common manufacturing process where the insert is placed into the mold. This placement of the insert can be automated or manual, depending on the production volume of the parts. For high volumes, the placement is typically automated, and for low volumes, it is manual.

Por qué elegirnos

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Timely Production and Delivery

We pride ourselves on our timely services. From the initial quotation to the final delivery, all our services are done right on time, maybe even quicker.

Consistently Reliable Quality

We follow the highest quality standards and have strict quality assurance tests in place to ensure that the final product is the best.

Diverse Material Options

We offer a wide selection of materials for all our manufacturing procedures, including insert molding. We empower you to choose materials so that it helps accomplish the application of your product.

On-Demand Customization

We work with you as a team to provide you with a product according to your requirements. We communicate with you to understand your specifications and then manufacture a tailor-made customized product.

How Do Our Insert Molding Services Work?

Here is the typical working order to expect when you hire us for our insert molding services:

Enviar solicitud

Envíe su solicitud de presupuesto gratuito con una descripción y un dibujo técnico de su producto. Si no dispone de dibujo técnico, no se preocupe. Podemos realizar ingeniería inversa.

DFM y presupuesto

Solemos responderle en un plazo de 24 horas.

Mold-making & Machining

Once you approve the quote and make the deposit, we start working on the initial work of tooling, preparing machines, and so on.


Embalado, etiquetado y enviado a su puerta a tiempo

Find the Best Insert Molding Service?

This is where you get it all. Request your free quote today, and enjoy the best insert molding services.

Design Guidelines for Insert Molding Services

Our insert molding services allow you to manufacture parts so that they can meet a variety of functional needs. We ensure the quality of your insert molding project with the following molding design needs that are executed in a specific manner.

The Machining

We have vertical machines of wide capacities that are designed to carry out the plastic molding process through insert injection molding, and have a set of design guidelines that are accurately followed by our expert and experienced engineering team. The machines we use for our insert molding have an exceptionally tight tolerance, which ensures that the information on the plastic parts is accurate in plastic injection molding. We know that even a minor misalignment in millimeters can end up causing failure for the product, which is why we ensure no inaccuracy.

The Inserts

There are many different types of inserts used in the designing and manufacturing of molded components. These metal insert in the insert molding is usually made of brass, stainless steel, or the usual steel. The molds are placed vertically in the machine, manually or automatically through the CNC machining. The vertical position is to make sure that the mold stays safely in its place during the process of insert molding with the help of gravity. Now the molten plastic is poured into the mold, and the mold is closed.

Thread Options

Thread options allow the manufacturer to place pipes, screws, or anything else into the mold at specified locations. They aim to ensure that the mold does not make the product insert. As the product needs to be connected to external conduits in many ways, the mold will allow the final product to stay functional and useful.


Materials Used for Insert Molding

Here are the most commonly used materials for plastic injection molding:

Acetal Homopolymer/Delrin

PMMA (Acrylic, Plexiglas)


Moldeo por inyección de materiales plásticos


For our insert molding services, we are typically able to maintain a machining tolerance of +/- 0.003 in. (0.08mm) with an included resin tolerance that can be more than but not less than +/- 0.002 in. /in. (0.002mm/mm).


We offer multiple finishing options to complete the products made with the insert molding process. You can choose from any of the following depending upon your application’s requirements:

Standard Finish

Interior, non-cosmetic finish according to the geometry of the mold.

SPI Finishes

Range of SPI finishes from Grade 3 diamond / high polish to 320 stone low polish. These Finishing options include SPI A-1, SPI A-2, SPI A-3, SPI B-1, SPI B-2, SPI B-3, SPI C-1, SPI C-2, SPI C-3, SPI D-1, SPI D-2, and SPI D-3.

Threaded Inserts

We can install the most commonly used and popular standard inserts in UNF and metric sizes.

As Molded

As the name suggests, the mold will remain ‘as it is’ – without any secondary texturing or polishing.

Mold Texturing

Creating textures on the molds so that it shows on the final product. This finishing option includes matte, swirls, patterns, and lines.

Laser Engraving

Engrave part numbers, designs, logos, or any other specified printing onto your parts.

Pad Printing

Application of an ink-based design to the surface.


Painting the surface with standard colors or Pantone matching, including Primer and topcoat. Masking available; EMI (copper) paint.
insert molding

Industry Application

From manufacturing functional prototypes to large volume production runs, insert molding is used across a wide range of industries for various applications, including:

Aerospace and automotive

Insert molded parts are used in multiple aerospace and automotive environments, where they are created to meet precise industry standards and certification requirements.

Low volume production

Insert molding offers consistency and cost-efficiency, which is ideal for low-volume manufacturing projects.

Consumer-facing products

Insert molded parts can be manufactured from a variety of high-quality materials with customizable finishing options that are ideal for consumer-facing products.

Handheld devices

Insert molding is commonly used to produce handheld devices, such as scissors, remote control coverings, tools, case assemblies, knobs, and more.

Our Strengths

Quick Online

We give our customers instant quote with experienced technical team. Once a quote is submitted online, you will have a response within 24 hours.

Varied Material

We run more custom resins and diverse material options for our customers so that they make a selection according to their project needs.


We offer full-service design, manufacturing, and development support to see the customer’s project through from concept to market-ready product.

What is Insert Molding?

Insert molding refers to the process of manufacturing plastic parts around other, non-plastic parts, also known as inserts. The inserted component is typically a simple object, such as a thread or rod, but in some cases, inserts can be as complex as a battery or motor.

Once the insert is placed, the molten plastic is injected such that it surrounds the insert to form a tight and secure bond. As a result, a single joined piece of sturdy, long-lasting part is formed.

Por qué elegir el mecanizado CNC

Creates Strong Components

Injection-molded parts are manufactured in a mold cavity that does not leave room for any potential dimensional changes, guaranteeing that every part is strong and durable.

Reliable and Consistent Results

The insert molding method produces perfect products every time as it eliminates the need for manual after-production trimming and finishing.

Material Variety

The process of insert molding offers a wide selection of materials to help you choose the one that fits your needs.

The Complexity of part design

Injection molding can handle the production of extremely complex parts while ensuring uniformity and accuracy.


Overmolding refers to the process when plastic is molded over another molded part. The first component is made inside an injection mold, and it is then placed into a second mold to add the over-molded material. On the contrary, Insert molding refers to combining other parts, particularly metal parts, directly into the injection-molded product.

We want to evaluate the part using a 3D file output from any number of designing software packages. You will also have to share the material and other estimated information, including the timeframe, budget, and so on.

The material to be used for your project depends totally on the end-use application for your part.

Depending on size and complexity, we take from 4 to 12 weeks generally to complete an insert mold project.

Insert molding is suitable for plastic over other materials. If your product has a non-plastic component, then insert molding is the perfect solution for you.