Our Roots


Optimum Crush was started in 2013 by Jerrod Dulmes. Jerrod had worked for Excel™ Crusher Technologies (later purchased by FLSmidth) as a product Design Engineer and later as Chief Engineer. He was involved with the design of the Raptor® 200, 300, 400, 600, 900, 1100, 1300, and 2000 cone crushers. This included leading the design and commissioning of the Raptor® 900 and 2000.

After FLSmidth closed the design office in Wisconsin, USA Jerrod began doing independent consulting. While consulting, several mines asked him to train their employees and troubleshoot issues with their Cone Crushers. He worked hand-in-hand with the customers at their mine sites to troubleshoot the issues and then create designs for improved parts that solved them. Word spread to other mines that had similar Cone Crushers and soon Optimum Crush was providing several solutions and products for various mines and crusher sizes.

Crusher Engineering 100 / 100
On-site Training 92 / 100
Crusher Consulting 86 / 100
Repair & Rebuilds 85 / 100

Our skills

We are crusher experts and our team has the track record to prove it. Most of our team members started with OEM’s and were major contributors to the design of the crushers used in mines all over the world. 

We pride ourselves on quality engineering and strive for perfection in everything we do. We know the importance of maximizing output and minimizing downtime at your mine or quarry. 

Our Typical Process


Analysis & Consulting

We learn about your issue and visit your machine on site to take measurements so we can build out our detailed recommendation.

Learn About Our Free Analysis


Review Our Findings

After learning more about your inefficiencies we will create a full report of your machine and give you a detailed recommendation.

See Sample report


We Get To Work

Upon approval we start your project using internal resources as well as external partners (typically local to your mine) to complete.

Get Started Here

Frequently Asked Questions

What services do you offer?

Our service include:

  • Custom Engineering
  • On-site training
  • Off-site training (virtual)
  • 24 hour support
  • Crusher Machine repairs & rebuilds
  • Flow Sheet Analysis
Do you have replacement parts in stock?

We have a massive inventory of parts in stock that can ship same day. While we may not have the exact part you need, we have an established pipeline that can get any part we don’t have in stock, fast. 

What makes you different then other OEM part companies?

We all started our careers at an OEM so we not only have very specific machine knowledge, but in some cases we actually designed the machines you are currently using. 

How many parts have you custom engineered?

We have made vast improvements through custom engineering to over 50 cone crusher parts. These re-engineered parts have saved mines thousands of hours of downtime.



years of combined mining experience

Our team

The staff of our company is fully equipped with qualified builders, designers, engineers, tile makers. All have extensive experience in successful implementation of various projects.

Jerrod Dulmes
Jerrod Dulmes President
Steve Starke
Steve Starke Operations Manager
Dale H
Dale Holzhausen Account Manager
Web final - Jennifer2
Jen Enright Executive Assistant
Jeff Inman2
Jeff Inman Product Engineer
Leary Peterson Inventory Manager
Kurt O'Bryan Comminution Consultant
kurtM - OC
Kurt Mazzoni Product Specialist
Ken Olson2
Ken Olson Mining Consultant
Griffin Robjohns Product Engineer I
Wang Ke
Wang Ke Manufacturing Engineer
Amy Pepin Controller
Chris Wade
Chris Wade Product Specialist
Steve Lovell Mining Consultant