The Importance of Venting in Injection Mold Design

When it comes to producing flawless plastic parts, proper venting is often overlooked. Yet, it’s one of the most critical design considerations. Venting allows trapped gases to escape during the injection process, preventing defects like burn marks, incomplete filling, and flash. At Dongxinda Mould Technology Co., Ltd., we integrate optimal venting channels into every mold design. The result? Clean, high-quality parts from the first shot.

Quick Tips:

• Always allow gas escape paths in complex cavities.

• Use fine venting for transparent or precision parts.

• Combine with vacuum systems for thick-wall molds.

Trust Dongxinda to engineer not just molds—but success.

FAQs
Q1: Can venting be added to an existing mold?
A: Yes, with careful re-machining, venting can be retrofitted into existing molds.

Q2: How do you test venting efficiency?
A: We use flow simulation software and test molding to confirm gas release performance.