Insert Molding Services

Our Custom Insert Molding Services

NOBLE provides customized insert molding according to the specific needs of each customer. From prototype design to production, we provide customers with high-precision, stable-performance insert molding parts at competitive prices.

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Our Powerful Liquid Silicone Injection Molding Processes

Liquid silicone injection molding is a versatile and efficient solution for producing high-performance parts. NOBLE has advanced liquid silicone injection molding equipment and an experienced team of engineers to help you optimize your design, reduce injection molding costs, and get impeccable liquid silicone injection molded parts at competitive prices.The following are our powerful liquid silicone injection molding services

Standard Liquid Silicone Injection Molding

The two-component LSR material is injected into the mold under pressure, the LSR is heated and mixed, then injected into the mold and cured at a controlled temperature. After cooling and curing, the part is ejected. Due to its high precision and biocompatibility, it is widely used in the production of medical parts and automotive parts.

Two-Shot Liquid Silicone Injection Molding

It is to inject two different stages of liquid silicone materials into the mold and cool them separately to form a component that combines the characteristics of the two materials. Due to its aesthetic flexibility and improved performance, it is widely used in automotive and medical parts.

LSR Insert Injection Molding

The preformed insert is placed in the mold cavity before injecting LSR, and the liquid silicone rubber is injected into the insert and bonds with it during the curing process. Due to its strong adhesiveness and strong adhesion, it is widely used to manufacture medical equipment and automotive parts.

Multi-Cavity Liquid Silicone Injection Molding

A process that uses a mold with multiple cavities to produce multiple parts in a single cycle. It is widely used in high-volume manufacturing of medical device parts and automotive parts due to its higher production efficiency, consistency, and low cost.

Hot-Runner Liquid Silicone Injection Molding

It uses a heated flow channel system to keep the silicone material at a high temperature in the flow channel, preventing it from curing prematurely and reducing material waste. Due to its high processing accuracy, short cycle, and high surface finish, it is widely used to manufacture medical equipment and automotive parts.

Bio-Compatible Liquid Silicone Injection Molding

It uses medical-grade LSR that is biocompatible and safe for medical applications, similar to standard LSR injection molding. It is widely used in the manufacture of medical device parts and healthcare due to its sterilization compatibility and high performance.

Our Robust Insert Molding Capabilities

Molding Machines

30t- t

Surface Finishes

0 +

MOQ

0 PC

Tolerances

0 mm

From Prototyping to Manufacturing

NOBLE is your trusted one-stop custom manufacturing solution, from prototype design to manufacturing, through huge manufacturing resources, suitable technology, streamlined process, expert guidance, and perfect quality inspection process to turn your ideas into reality.

Mold Design & Engineering

Injection mold design is a key element of the injection molding process as it plays an important role in determining the quality and precision of the final injection molded parts. NOBLE has a professional design team to provide you with the best injection mold design solutions.

Mold & Prototype Manufacturing

Once the mold design is approved, we begin manufacturing the mold. We then perform prototype injection molding to quickly and efficiently produce and test them for small batch production of plastic parts.

Low-Volume & Medium Injection

NOBLE meets your small and medium batch injection molding needs through strict tolerance control, quality inspection, and complete supply chain, and quickly delivers cost-effective, high-precision parts.

Why Choose Us for Custom Custom Insert Molding Services?

NOBLE is dedicated to provide customized insert molding solutions from design to production. Our professional team quickly responds to your requirements.We provide competitive prices and strict standard production lines for high quality parts.

Optical MOQ

No restrictive MOQ is needed, which is beneficial for you to make a flexible cash flow. And make sure molded parts are efficient from prototype to production.

Rapid Lead Times

Abundant raw materials supply and adequate machines to speed up production.

Reliable Quality

Owing fully furnished certification and a complete quality inspection process, NOBLE guarantees every component is in good and high precision.

Professional Overmolding Team

Equipped with 10+ Senior Engineers and a well-structured team, making an effective turnaround from prototype to production.

Work with Us in 4 Simple Steps Only

With many years of manufacturing experience, NOBLE offers the best solutions for all rapid prototyping and low-volume manufacturing needs. We streamline the innovation cycle into four simple but effective steps.

Upload Your Design

Just simply upload your CAD files and submit RFQs with clear information online.

Receive Design Analysis

We'll send you design for manufacturability analysis and transparent pricing.

Start Manufacturing

Our experts will produce your parts with the required technologies and materials.

Receive Your Parts

Your parts will be delivered to your door directly with stringent deadlines.

What is Insert Molding Process?

Insert molding is a process that injecting plastic materials around another part so that forms a new part. As usual, the material of the inserted component could be plastic or metal. In the insert molding process, the insert is placed in the mold in advance, and then the machinist will inject plastic (thermoplastic resin is the common material) into the cavity. When cooled, parts are about to be packaged and delivered to customers.

Advantages of Insert Molding Process

As insert molding makes metal, plastics, and other materials form a combination together, improving the mechanical properties of the plastic parts or thermoplastic elastomer products. Besides, the advantages of insert molding are as follows:

No assembly

Various materials are combined into one component during insert molding. The produced parts are the final components. Thus, it speeds up the production process.

Reduce labor costs

No need to assemble in the process of insert molding contributes to reducing labor costs. Therefore, production efficiency is enhanced.

Improve parts durability

Plastic is injected around the parts in insert molding. The strength of engineering plastics is given play to improve wear resistance and tensile strength. At the same time, the properties of metallic materials are also made good use of because the strength and conductivity of final parts from insert molding are also enhanced.

Decrease the weight

Because the final component combines plastic and metal. The weight is less than the corroding metal parts.

Insert Molding Tolerances and Standards

For your convenience and to solve your problem more efficiently, refer to the following information to improve part manufacturability and reduce lead times. Let’s unlock the potential of your insert molding project.

Standards	Metric Units	Imperial Units
Maximum Part Size	800×1000×400mm	31.50×39.37×15.75in.
Minimum Part Size	2×2×2mm	0. 08×0. 08×0. 08in.
Substrate Wall Thickness	From 0. 5 to 3mm	From 0. 20 to 0. 12 in.
Tolerance	+/- 0. 025 mm	+/- 0. 00098 in.
Inserts	Inserts can be female and male. They both can improve a product’s appearance and utility.
Mold Validation	Provide T0, T1, T2 samples before mass production
Inspection and Certification Options	First Article Inspection, ISO 9001, ISO13485
Lead Time	From mold making to sample delivery: 15-45 business days

Materials for Insert Molding

Advanced injection molding machines ensure up-to-date and available insert molding options. A range of materials are supported to support your custom requirements in various fields. There are some common materials:

Tooling Materal

High-tolerance CNC machined molds are required before the insert molding process can begin small or high-volume production. The most commonly used materials include:

Tool Steel:	P20, H13, S7, NAK80, S136, S136H, 718, 718H, 738
Stainless Steel:	420, NAK80, S136, 316L, 316, 301, 303, 304
Aluminum:	6061, 5052, 7075

Plastic Materials

Plastic injection molding services offer a variety of materials with different properties such as impact strength, stiffness, heat resistance, and chemical resistance.

ABS	Nylon (PA)	PC	PVC
PU	PMMA	PP	PEEK
PE	HDPE	PS	POM

Additives and Fibers

Additives and fibers usually be added to standard plastic materials to improve their properties. Such as aesthetics.

UV	absorbers	Colorants
Flame	retardants	Glass fibers
Plasticizers

Inserts

The insert is put into the mold and then closed the mold. Plastic pellets will be plasticized. After the plastic has cured, the part is ejected from the mold, and the insert will be sealed into the part.

Brass

Stainless Steel

Aluminum

Surface Finishes for Insert Molding

Surface finishing is also be used to improve the part’s function and aesthetics. Common surface finishing is supported for your choice:

Glossy

A grade finishes are made using a diamond buffing process and yield shiny and glossy surfaces on injection molded parts.

Semi-glossy

B grade finishes use grit sandpaper to produce parts with a slightly rougher finish than grade A parts. Custom molded plastic parts that undergo B grade finishing have a matte surface texture.

Matte

C grade finishes use grit sanding stones to produce a rough, uneven surface. Injection plastic parts that undergo C grade finishing have a matte surface texture.

Textured

D grade finishes use grit and dry glass beads or oxide to produce a very rough textured finish. Depending on the type of material used, products can have a satin or dull finish.

Custom Insert Molded Parts Display

Our custom insert molded parts are designed to enhance performance and durability. Check out our precision custom insert molded parts, including our valued customers’ precision parts.

See What Our Customers Say About Us

NOBLE’s insert molding solutions manufacture parts with different functional and aesthetical needs. You can check our valuable customer’s feedback.

NOBLE has been our quality supplier of insert molded parts. Fast delivery is essential for our business, and NOBLE always offers short lead time and competitive pricing. Andy responds quickly to all our emails and questions. This has improved our working relationship, and we continue to value this partnership.

We asked NOBLE to fabricate parts for an acritical supplier demo, and you came through with a short lead time. Your work is alwayshigh quality, and we are grateful for your precision in insert molded parts. The help in checking our designs and material selection has also saved our company from making expensive errors.

We look forward to doing future projects with you guys.

From the instant and accurate quotation to the production process to the timely delivery of parts, NOBLE responded to our demands with complete professionalism. They handled every aspect of this insert molding project quickly and cost-effectively. We will surely work with them again in the future.

I’ve worked with the NOBLE team in the past, they always do a perfect job. The responsiveness and ability to quote within a day make them my first choice to work with. They also are very good communicators and understand my design needs on a deep level or ask pertinent questions to ensure they do a perfect job.

Applications of Insert Molding

Because CNC machining can achieve high precision without changing the material structure with good manufacturing speed, it is becoming growing common as the range of machines, control systems, and tools for CNC machining continues to expand.NOBLE is dedicated to providing precision machining services for various industries and our precision CNC-crafted parts can be found in all areas of the industry, including.

If you are looking for a rapid prototyping manufacturer or a CNC machine shop to fabricate small, medium-volume, or mass-production products, NOBLE is an ideal choice.Our well-trained and experienced staff manufactures parts in line with drawings on modern CNC machines, with the highest accuracy and processing quality in all sizes.In addition, we provide professional design considerations for your CNC machining projects.

Want to get the most professional and fastest service for your CNC machining project? Upload your CAD files now and obtain a quote!

Insert Molding FAQs

What materials are used in insert molding?

In general, most moldable thermoplastic resins are compatible with the insert molding process. Usually, the insert is made of metal, usually brass, aluminum, or stainless steel.

How does insert molding work?

Insert molding is a manufacturing process that involves molding a plastic or metal insert into a plastic part during the molding process. Here is a summary of how insert molding works:

1.A metal or plastic insert is placed into the mold cavity before the plastic material is injected. The insert is positioned in a specific location and held in place by the mold.

2.The mold is closed and the plastic material is injected into the cavity. The plastic material flows around the insert and fills the mold cavity, bonding with the insert and forming a composite part.

3.Once the plastic has cooled and solidified, the mold is opened and the finished part is removed.

How do you design an insert molding?

Designing an insert molding involves several considerations to ensure that the final product meets the desired performance and aesthetic requirements. Here are some key steps to designing an insert molding:

Define the part requirements:Identify the functional, aesthetic, and performance requirements of the part, including the material properties, dimensional tolerances, surface finish, and assembly requirements.

Choose the insert material:Select the appropriate insert material based on the part requirements, such as the strength, stiffness, conductivity, and compatibility with the molding process and the plastic material.

Determine the insert geometry:Define the shape, size, and location of the insert in relation to the plastic part, taking into account the mold design, the injection molding process, and the assembly requirements.

Design the mold:Create a mold design that incorporates the insert and allows for proper plastic flow and bonding with the insert. The mold design should consider the molding process, the material properties, and the part geometry.

Optimize the molding process:Determine the appropriate molding parameters, such as the temperature, pressure, and cooling time, to ensure proper bonding between the insert and the plastic material. The molding process should be optimized to prevent defects, such as sink marks, voids, and warpage.

Test and validate the design:Perform testing and validation to ensure that the part meets the desired performance and aesthetic requirements, including dimensional accuracy, mechanical properties, and assembly fit.

Refine the design:Incorporate any necessary design changes based on the testing and validation results, and repeat the testing and validation process as needed.

What is the difference between insert molding and overmolding?

Insert molding and overmolding are both plastic molding processes that involve molding one material over another to create a composite part. However, there are several differences between these two processes, including:

The placement of the insert material:In insert molding, the insert material is placed into the mold cavity before the plastic material is injected, whereas in overmolding, the plastic material is molded over the substrate material after it has been formed.

The purpose of the process:Insert molding is typically used to add strength, functionality, or aesthetics to the part, whereas overmolding is used to create a soft-touch grip, improve ergonomics, or add color or texture to the part.

The materials used:Insert molding typically involves metal or plastic inserts that are molded into a plastic part, whereas overmolding involves a variety of plastic materials that are molded over a substrate material.

The molding process:Insert molding can be performed using various molding processes, such as injection molding, compression molding, and transfer molding, whereas overmolding is typically performed using injection molding.

What is insert molding?

Insert molding is the process of molding or forming plastic parts around other non-plastic parts or inserts. The biggest difference between insert molding and overmolding is that overmolding involves two injections of material to form the substrate, while insert molding involves only one injection of molten plastic.

Here is a summary of how to insert molding works:

1.A metal or plastic insert is placed into the mold cavity before the plastic material is injected. The insert is positioned in a specific location and held in place by the mold.

3.Once the plastic has cooled and solidified, the mold is opened and the finished part is removed.

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Insert Molding Services

Our Custom Insert Molding Services

Our Powerful Liquid Silicone Injection Molding Processes

Our Robust Insert Molding Capabilities

From Prototyping to Manufacturing

Mold Design & Engineering

Mold & Prototype Manufacturing

Low-Volume & Medium Injection

Why Choose Us for Custom Custom Insert Molding Services?

Work with Us in 4 Simple Steps Only

What is Insert Molding Process?

Advantages of Insert Molding Process

Insert Molding Tolerances and Standards

Materials for Insert Molding

Tooling Materal

Plastic Materials

Additives and Fibers

Inserts

Surface Finishes for Insert Molding

Glossy

Semi-glossy

Matte

Textured

Custom Insert Molded Parts Display

See What Our Customers Say About Us

Piscary Herskovic

Hari Mackenzie

Mark Alford

Kris Olarte

Applications of Insert Molding

Oil & Gas

Automation Equipment

Automotive

Aerospace

Medical Devices

Robotics

Insert Molding FAQs

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