Five Reasons to Select Plastic Molding Manufacturing as ...

Plastic Molding Manufacturing owns the largest base of Two-Shot injection machines in New England. PMM believes Two-Shot Injection Molding is one of the most efficient methods for molding plastics with multiple materials and unique requirements.

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Plastic Molding Manufacturing, a top supplier of Two-Shot multi-component and material moldings, considers Two-Shot Injection Molding the most efficient method for creating plastic products from multiple materials due to specific requirements. Here are five key reasons to choose PMM for its Two-Shot Molding capabilities.

Five Reasons:

1. Cost Efficiency: Two-Shot molding eliminates extra costs and secondary operations.

2. Reduced Time and Labor: Instead of requiring two separate machines, Two-Shot molding performs the task with one, reducing the time and labor necessary for product completion.

3. Enhanced Product Quality: This method significantly improves quality control and integrity of the final product.

4. Compatibility and Material Options: PMM's extensive experience in selecting the right materials increases product safety and component adhesion, improving compatibility and expanding material options.

5. Innovative Design Possibilities: Two-shot molding allows for complex designs with multiple colors, materials, and components. Enhanced end-user performance includes benefits like non-slip grips, reduced vibration, noise dampening, water shields, drop protection, moveable components, and family molds. Mold Flows also provide added insights into product integrity.

To understand these advantages fully, it’s crucial to differentiate between Two-Shot Molding and traditional Over-Molding processes.

Traditional Over-Molding Process:

1. The base product is molded using a horizontal injection molding machine.

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2. The molded base is manually placed into a second mold for processing by a specialized vertical molding machine.

3. Insert molding and other secondary components are completed using different machines, tools, and manual labor.

Two-Shot Molding Process:

1. Two mold cavities are integrated into one rotary molding machine equipped with two injection units.

2. The top mold cavity acts as the base mold while the bottom cavity handles the secondary molding, including the over-mold process.

3. Materials are injected into the corresponding cavities.

4. The mold rotates 180 degrees after opening.

5. Finished molds from the bottom cavity are ejected, and the process starts again.

Examples of products created via Two-Shot Injection Molding include:

Two Color Decorative Housing

Safety Button

Filter Cover with Molded Seals

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