Contact Us

TEL: +86-755-27225419
Mob: +86-13640983275
E-mail: sales@hlmold.com.cn
Address: Building 3th, 6 Th, No.3 Industrial Zone, Da Wang Shan Village, Shajing Town, Bao'an District, Shenzhen, China

Home > Knowledge > Content
Gate Types of plastic injection mold
Jan 26, 2018



The two main gate systems are manually trimmed gates and automatically trimmed gates. The following examples show where they are used:

· Sprue gate: Used for large components, the gate mark is visible in component and no runner is required. e.g.: bucket molding (backside cylindrical gate mark visible and can be felt).

· Edge gate: Most suitable for square, rectangular components

· Ring gate: Most suitable for cylindrical components to eliminate weld line defect

· Diaphragm gate: Most suitable for hollow, cylindrical components

· Tab gate: Most suitable for solid, thick components

· Submarine gate: Used when auto de-gating is required to reduce cycle time

· Reverse taper sprue gate (Pin gate): Generally used in three plate molds.


Previous: Ejection system types

Next: Design considerations of plastic injection mold