July 14, 2022

The Quality of Tool Making

blog injection molding

The “Quality” of a mold can be looked at 2 ways. The tool lacks “quality” if there is a defect in tool making. The tool is built to a “quality” level based upon the budget and needs of the customer.

The Society of Plastics Engineers outlines mold standards from Class 105 to Class 101 based on the tolerances the finished part needs to achieve and the number of parts the mold needs to produce.

Each class has a specific list of features and characteristics that allow the tool to achieve the desired number of shots.

There is no difference in part quality from a class 105 or 101 tool. Errors in tool making that lead to defects in parts are errors in tool making not a reflection of standard to which the tool is built.

Class 101: exceeding one million cycles.
Class 102: not to exceed one million cycles.
Class 103: not to exceed 500,000 cycles.
Class 104: not to exceed 100,000 cycles.
Class 105: not to exceed 500 cycles.

When 2 tool shops in the same area quote on the same tool to the same standards the pricing is usually within a few dollars. The difference in quoted prices comes from one company quoting a class 104 tool and another quoting a class 102 tool for the same part.

The quality mold tool should be the one that attends the customer requirements. There are many kind of injection molds. If you need a short cycle it must have conditions to give you a short cycle. If you need good surface quality in your product, the tool must be done with good steel and must have a good polish or treatment. In fact your question is a little bit subjective.
The good quality of tool depends of your expectations, and you must specify it when you are buying a mold.

Related Blogs

P03 Low Volume Manufacturing
How to Identify a Good Injection Mold Supplier?

Finding some resources is just the first step, how to identify a good one and choose one out of many to work with is the most important part

blog injection molding
Injection Molding Process Monitoring

The injection molding machine outputs cannot be set, but the inputs can be each time you set the injection mold. Some of these set points, like mold temperature and barrel …

blog injection molding
Why precision injection mold cost is high?

To address the question: Extremely high capital investment Several hundred if not 1000’s of labor hours required— highly skilled Every single piece/part of a mold is a one of a …

blog injection molding
Tooling and Molding is unique for each company

Each company has a unique set of requirements for tooling and molding. The tooling and molded part cost is always a significant consideration for most companies. When dealing with budgetary …

Tell us your request right now and contact us today about getting started on your next project together!


Or Fill Out The Contact Form Below:

Support Your Business with Better Molding Solution

Contact Info
Copyright © 2023, ACO Mold. Terms of Service and Privacy Policy. All rights reserved.  Powered by ACO MOLD.
1 1.png

Join Our Network

Please email to sales@acomold.com
or fill out the contact form below: