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Injection molding relies on having the right amount of molten plastic, or “shot size”, to completely fill the mold cavity. The cushion refers to extra shot capacity beyond what is required to fill the mold. This plastic cushion serves the vital purpose of maintaining pressure against the cooling, shrinking material in the mold during the […]

Injection molding and extrusion are two of the most common manufacturing processes for producing plastic parts. At a glance, they may seem similar – after all, both processes involve melting down plastic and forming it into custom shapes. However, injection molding and extrusion utilize different equipment and techniques to serve unique applications. As a professional

What exactly is a parting line? And why does its placement matter when designing parts for injection molding? As a professional plastic injection molding manufacturer, I’ll explain everything in this comprehensive guide.

Injection molding can produce high volumes of plastic parts efficiently and precisely. However, the high initial costs make small batch production expensive. Is injection molding ultimately a cost-efficient process? As with most manufacturing processes, the cost dynamics depend greatly on the production volume. As a professional plastic injection molding manufacturer, I will help you find

In injection molding, tonnage refers to the clamping force of the injection molding machine. It determines how much pressure can be applied to keep the mold closed during the injection of molten plastic. Understanding tonnage is key for producing high-quality plastic parts efficiently. In this complete guide, as a professional plastic injection molding manufacturer, I’ll

Transfer position is one of the most crucial yet often overlooked aspects of the injection molding process. As a professional plastic injection molding manufacturer, I want to lift the veil on this key technique and explain precisely what the transfer position is and why it matters so much. What is Transfer Position in Injection Molding?

Undercut is one of the most common yet confusing concepts in injection molding. As a professional plastic injection molding manufacturer, I often get questions from customers about what undercuts are and how to design parts with them. In this complete guide, I’ll explain everything you need to know about undercuts in injection molding – from

Injection molding is one of the most common manufacturing processes for creating plastic parts. However, warpage is a common defect that occurs during injection molding, causing parts to bend, twist, or deform after they’ve been ejected from the mold. So what exactly causes warpage? And what can you do to prevent it? In this complete

Weld lines, also known as knit lines, are a common injection molding defect that can affect the appearance and performance of molded plastic parts. In this complete guide, as a plastic injection molding manufacturer, we’ll cover everything you need to know about weld lines, including what causes them, how to prevent them, and how to

Sink marks are a common injection molding defect that leads to uneven surfaces and poor aesthetics. As a professional plastic injection molding manufacturer, I’ve worked with manufacturers who’ve struggled with sinks. By optimizing materials selection, process parameters, tooling design, and part geometry, you can avoid sinks altogether. What Causes Sink Marks in Injection Molding? Before