Mold Maintenance

Exploring the: Mold Maintenance Zone

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Published: 10/1/2018

Tooling: Why Ejector Pins Break and How to Prevent It, Part 3
Here we focus on forces, friction, surface finish, and lubrication.

Published: 8/28/2018

Tooling: Why Ejector Pins Break And How to Prevent It, Part 2
Here’s the when and how to reduce the unsupported length of pins.

Published: 8/1/2018

Tooling: Why Ejector Pins Break...and How to Prevent It, Part 1
In part one of this four-part series, we focus on the molding machine and the ejection system as culprits.

Published: 3/2/2018

Tooling: Hot Sprues—Mold a Disk or Not?
Having a hot sprue shut off against the parting line versus intentionally molding a thin disk has been the subject of controversy for many years.

Published: 12/1/2017

How Sprue Pullers Help Prevent Molding Issues: Part 2
A vital secondary function of sprue pullers is to act as a cold well to trap solidified material left in the machine-nozzle tip.

Published: 9/25/2017

Tooling: Dealing with Sprue Bushings On the Production Floor
Causes of and solutions to some problems you probably deal with every day.

Published: 4/25/2017

Locating Rings, Platen Damage, and the Center of Gravity: Part 3
Selecting the right locating ring and putting it to good use takes careful consideration.

Published: 3/26/2017

Locating Rings and Platen Damage: Part 2
Selecting the right locating ring and putting it to good use takes careful consideration.

Published: 10/1/2016

A Better Way
A well-run preventive maintenance program can actually help you make money.

Published: 9/27/2016

Solving Issues with Gloss
Your problem may be related to tooling, material, processing, or combinations thereof. Here’s how to find the root cause.