Mold Base and Molded Parts

Name	Analysis and Explanation of Mold Base
Mold Base	Also known as mold base
Top Clamp Plate	Mounted on the fixed platen of the injection molding machine, also called top clamping plate, top fixed plate, or front plate
Spacer Plate	Installed on the frame plate or backing plate of the hot runner system, also called hot runner support plate
Runner Stripper Plate	Used to eject runner scrap in three-plate molds, also called runner stripper plate
“A” plate	Used to assemble the cavity insert, also called cavity plate, female mold plate
“B” plate	Used to assemble the core insert, also called core plate, male mold plate
“B1” plate	Also known as bottom support plate, backing plate
“B2” plate	When the moving mold requires core pulling, this plate may be added
Stripper Plate	Plate used for ejecting products, also called ejector plate
Support Plate	Acts as a support pad
Space Block	Usually installed between the moving platen and B-plate, also called spacer block
Ejector Plate	Also called ejector retainer plate, ejector pin plate, or ejector top plate
Ejector Retainer Plate	Also called ejector backing plate, ejector bottom plate, or ejector plate
Bottom Clamping Plate	Mounted on the moving platen of the injection molding machine, also called bottom clamping plate, bottom fixed plate
Return Pin	Used to reset the ejector assembly, also called return pin
Guide Pin	Used for guiding in the mold, also called guide pin, leader pin
Guide Bush	Used for guiding in the mold, matching with the guide pillar, also called guide bushing, guide sleeve
Ejector Guide Pin	Used for guiding the ejection system, also called support pillar, ejector guide pillar
Ejector Guide Bush	Installed on the ejector assembly plate, matching with the guide pillar, also called ejector guide bushing
Support Pin	Used for guiding between the A-plate and runner plate in three-plate molds, enabling multi-stage mold opening, also called runner guide pin
Straight Guide Bush	Shoulderless guide bushing, also called straight bushing
Shoulder Guide Pin	Shouldered guide pillar, also called leader pin, support pillar

Name	Analysis and Explanation of Molded Parts
Molding Parts	Parts that form the mold cavity
Cavity Insert	The largest forming insert mounted in the cavity plate (fixed mold half), also called cavity insert, female mold core, or front mold insert
Core Insert	The largest forming insert mounted in the core plate (moving mold half), also called core insert, male mold core, or rear mold insert
Cavity Small Insert	Small insert mounted in the cavity plate (fixed mold half)
Core Small Insert	Small insert mounted in the core plate (moving mold half)
Cavity Insert Pin	Small cylindrical insert mounted in the cavity plate, preferably modified from standard ejector pins
Core Insert Pin	Small cylindrical insert mounted in the core plate, preferably modified from standard ejector pins
Cavity Clamp	A block used to secure the cavity insert, also called cavity insert clamp block
Core Clamp	A block used to secure the core insert, also called core insert clamp block
Exchangeable Insert	High-precision, easily damaged, and interchangeable inserts
Date Indicator	Includes inserts marked with year, month, day, shift production, and blank inserts
Recycle Marked Pin	A standard component engraved with environmental certification marks
Core Pin	Standard component used for forming bosses, holes, or pins
Gas Expeller	Made from porous steel to allow gas venting, also called porous mold steel or venting insert