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A bin contains black plastic fasteners with a unique design on the exterior and a screw-like interior.

Injection Molding Process: Hot Runner Systems

Plastic injection molding companies install efficient systems in their production process to stay ahead of the game. Hot runner systems cut down production time and reduce unnecessary material waste. Learn more about hot runner systems and their impact on the injection molding process.

Understanding Hot Runner Systems

Hot runner systems offer a streamlined method of delivering molten plastic to the mold cavities. They keep the plastic in a molten state throughout the process, which eliminates waste and improves cycle times.

Components of Hot Runner Systems

A typical hot runner system consists of two parts: the manifold and the nozzles. The manifold distributes the molten plastic from the molding machine’s nozzle to various points across the mold. Each nozzle directs the plastic into specific cavities.

This process is precise; it keeps the quality consistent and reduces the need for post-production modifications. To limit defects on your production line, utilize a hot runner system.

Variations in Hot Runner Design

Manufacturers can choose from various hot runner designs for different tasks. For instance, valve-gated systems offer superior control over the flow of plastic, while hot-tip gates are ideal for creating parts with a smooth finish. Selecting the right design will keep your workflow smooth as you create high-quality products.

Advantages of Using Hot Runner Systems

Injection molding manufacturers that use hot runner systems in their processes should consider part design and production volume. These systems provide numerous benefits for a production line, such as improved productivity and less material waste.

Enhancing Productivity

Eliminate time for cooling and reheating with a heat runner system. Because these systems preserve the plastic in its molten state, you can reduce cycle times, speed up the production process, boost your workflow, and maximize machinery utilization.

Reducing Material Waste

Cold systems often collect waste from the sprues and runners, incurring high material costs. Hot runners mitigate this by removing the need for these parts altogether. By using hot runners, you can practice a more sustainable manufacturing process.

Improving Product Quality

By maintaining uniform temperature control across all cavities, hot runner systems consistently create high-quality products. Uniformity reduces defects and enhances the overall reliability of the production line.

Our team at Polymer Molding incorporates these systems to optimize output on high-quality products like plastic tube plugs. Using these systems will improve your manufacturing line so you can craft products ready for distribution. Reduce material waste and utilize your outputs to maximize their potential with a heat runner system!

Connect With Us

Polymer Molding Inc.
1655 West 20th Street
Erie, PA 16502

Phone: 814.455.8085
Toll Free: 800.344.7584
Fax: 888.257.5566

Committed to a Better Customer Experience

When you call Polymer Molding Inc. during normal business hours, your call will be answered by a live person, every time. It is our sincere commitment to lead the market in exceptional customer service, because you deserve to do business with a company that truly cares about you and your product needs. Our knowledgeable, friendly and helpful sales and customer service representatives will take the time to help you select the best parts for your applications at the most competitive prices in the industry. We are here to answer questions, process your orders, and prepare your shipments quickly and efficiently. Click the button below to compare our pricing and see the Polymer Molding difference.

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