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Injection Molding

Browse our injection molding articles and technical guides.

Injection Mold Maintenance: How to Extend Mold Life

Disciplined injection mold maintenance can double your mold s rated life and cut per-part tooling cost in half. This guide covers PM interva...

April 9, 202610 min read

Rapid Tooling vs Bridge Tooling vs Production Tooling: Which Do You Need?

Choosing the wrong tooling tier costs programs $40,000 or more in avoidable rework and tooling replacement. This guide breaks down cost, lea...

April 9, 202610 min read

Hot Runner vs Cold Runner Systems: Cost, Performance, and When to Choose Each

The hot runner vs cold runner decision swings tooling budgets by $15,000 to $40,000 and per-part cost by 8% to 22%. This guide breaks down u...

April 9, 20269 min read

DFM for Injection Molding: Complete Checklist for Wall Thickness, Draft, Ribs, and Bosses

Late-stage design changes after T1 sampling cost $8,000 to $22,000 per revision. This complete DFM checklist for injection molding covers wa...

April 9, 202612 min read

Injection Mold Steel Selection: P20, H13, S136, and NAK80

Choosing the wrong injection mold steel adds thousands in rework and cuts tool life short. This guide compares P20, H13, S136, and NAK80 acr...

April 9, 20269 min read

SPI Mold Classification: Class 101 Through 105 Explained

SPI mold classification defines five tiers of injection mold construction, from Class 101 production tools rated for 1,000,000-plus cycles t...

April 9, 20269 min read

Injection Molding Consultants: What They Do and What They Charge

Injection molding consultants catch design and tooling problems before they become expensive fixes. This guide covers scope, fee structures,...

April 9, 20268 min read

Brinell Hardness Calculator and Conversion Table (ASTM E140)

A complete ASTM E140 Brinell to Rockwell conversion table with Vickers and tensile strength equivalents, plus hardness callout specs for the...

April 9, 20268 min read

Plastic Shrinkage Calculator: Rates by Material (Full Table)

Plastic Shrinkage Calculator: Rates by Material (Full Table) A plastic shrinkage calculator is only as good as the input data feeding it. Us...

April 9, 20268 min read