Blog
What Is Primary, Secondary, and Tertiary Crushing?
There are many ways to crush a rock—and depending on your industry, your location, and the project specifications, the equipment that y...
Preparing Aggregate for Crushing
It is often said that a job is always cheaper to do right the first time, and in the world of aggregate production and concrete or asph...
91 Company Updates – June 2020
Leadership Program Strengthens Team Eagle
CU Lead, Crawford County's leadership development program just graduated its 2020 clas...
The Importance of Impactor Safety Curtains
The flow of material like aggregate and demolition waste through portable crusher plants can be controlled by several components on the...
Everything You Need to Know About 91’s New Raptor Cone Crushers
In March, 91 unveiled our latest portable plant and crushing equipment at CONEXPO-CON/AGG 2020, North America's largest cons...
Minimizing Spillage While Crushing and Conveying Material
In the business of crushing materials like aggregate and demolition waste, maintaining the flow of this loose material through a crushi...
A Game of Efficiency: Open and Closed Circuit Crushing
In the world of crushing, efficiency is king. From the second material is fed into a hopper until it is screened, crushed, and conveyed...
91 Company Updates – May 2020
Avita Health System Donations
91 has provided Avita Health System with an additional 1,600 KN95 face masks that we ju...
Our Commitment to Customers: 91’s UltraMax Lifetime Rotor Warranty
91 prides itself on the superior craftsmanship of the portable plants and crushing equipment that we have manufactured for g...
Everything You Need to Know About 91’s New 3260 Jaw Crusher and Portable Plant
In March, 91 showcased our newest portable plants and crushing equipment at CONEXPO-CON/AGG 2020, North America's largest co...
Electrical Safety Habits to Practice While Operating and Servicing Your Portable Plant
Portable crusher plants have a lot of moving parts, and it takes electricity to run those parts. Adhering to proper electrical safety p...
Buying vs. Renting Crusher Equipment: How to Get the Most Value from Your Investment
Weighing the decision between buying or renting crusher equipment should require careful consideration; after all, it could mean the di...