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Insert Molding
Improved Part Reliability
Reduced Assembly Time
Stronger Assemblies
Cost-Effective Manufacturing
Wide Material Compatibility
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About Insert Molding Service
Insert molding is a precision injection molding process that integrates metal or other components into plastic parts during molding. It improves structural integrity, reduces assembly, and boosts part performance.
Insert Molding Materials

Brass C360

Brass

Brass is an alloying consisting of both copper and zinc. The gold materials is a weather- and corrosion- resistant metal, it's also an easy to machine material, so feedrates can remain high and coolant need is minimal.

Brass C272

Brass Grades For CNC Machining:

Brass C260

Titanium alloy – Ti6Al4V

Titanium Grade 2

Titanium

Titanium is an amazing material. It has high strength, is lightweight, is resistant to corrosion and chemicals, and can even maintain its strength when exposed to incredibly high temperatures.

Titanium Grades For CNC Machining:

Titanium Grade 1

Stainless Steel

Stainless steel is well-suited for a wide array of CNC machining projects, due to its excellent machinability and outstanding uniformity. It also has good workability and weldability to match your machining needs.

Stainless Steel Grades For CNC Machining:

Stainless Steel 15-5

Stainless Steel 303

Stainless Steel 304

Aluminum

Aluminum is a popular choice for machining due to its low density, good mechanical properties, high thermal and electrical conductivity, and resistance to corrosion. 


Aluminum Grades For CNC Machining:

Aluminum 6061-T651

Aluminum 2024-T351


Aluminum 7075-T651

Manufacturing Analysis and Fast Quotes
When you upload your 3D CAD file to request a quote, we'll analyze your part geometry to identify any features that may be difficult to machine such as tall, thin walls or holes that cannot be threaded.
Iterate part designs quickly and accelerate product development with quick-turn parts. Our automated design analysis will help spot any difficult to machine features before your design is sent to the manufacturing floor and save you from costly reworks further down the product development cycle.
Fast And Reliable Delivery
Domestic Production And Support
Work with a trusted manufacturer and eliminate the risk of sending parts overseas. You can also call or email us at any time and we'll help with ordering parts, design feedback, material recommendations, and answer any questions.
Why Choose BERGEK For Custom Insert Molding?
Material Selection
We stock more than 30 engineering-grade plastic and metal materials that are suitable for various part applications and industries. Materials range from plastics like ABS, polycarbonate, nylon, and PEEK to aluminum, stainless steel, platinum, and copper.
Infinite Capacity
Liminate downtime spent waiting for parts and safeguard in-house machining with on-demand relief and infinite manufacturing capacity.
Advanced Capabilities
We are optimized for speed, flexibility, and superior quality no matter the volume of parts. Here's what sets us apart.  tolerances down to ±0.001 in. (0.020mm); and cost-efficient machined parts at higher volumes to lower piece-part price.
Advantages Of Insert Molding
Enhanced Structural Strength
Reinforces plastic parts with embedded metal elements for long-term performance.
Compact Design Possibilities
Allows for more efficient use of space by integrating multiple components in a single part.
High Precision and Alignment
Maintains tight tolerances during insert placement and molding for reliable performance.
Material and Component Compatibility
Works with various insert types such as brass, steel, or electronic elements for diverse applications.
Insert molding is a process where metal or pre-manufactured components—such as threaded bushings, pins, or electrical parts—are placed into a mold and then encapsulated with molten plastic. As the plastic cools and solidifies, it forms a single integrated component with the insert locked securely inside. This technique is commonly used in electronics, automotive, and medical industries to enhance part strength, minimize assembly, and improve functional performance.

What Is Insert Molding?
Forming and Shaping
Brakes, punches, and dies are used to create angular bends and detailed features.
Assembly and Finishing
Parts are welded, fitted with inserts, or finished based on specific requirements.
Material Cutting
Laser, waterjet, or plasma machines accurately remove sheet metal material.
How Insert Molding Works?
CAD files and drawings are converted into machine code to prepare for precise cutting.
Data Conversion
Insert Molding Surface Finishes

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