Optimum Crush was founded in 2013 by Jerrod Dulmes in New Berlin, Wisconsin, with one clear mission: improving cone crusher efficiency for mining operations worldwide. Jerrod began his career at Excel™ Crusher Technologies — later acquired by FLSmidth® — where he served as a Product Design Engineer and ultimately Chief Engineer. During that time, he led the design and commissioning of the FLSmidth® Raptor® 200, 300, 400, 600, 900, 1100, 1300, and 2000 cone crushers, including direct responsibility for the Raptor® 900 and 2000.
When FLSmidth® closed its Wisconsin design office, Jerrod transitioned to independent consulting. Mining operations across North America quickly sought him out to train maintenance teams and troubleshoot performance issues on their cone crushers. Working directly on-site, he diagnosed problems and engineered improved replacement parts that solved them — parts that outperformed the OEM components they replaced. As word spread, Optimum Crush grew from a consulting practice into a full-scale aftermarket cone crusher parts supplier serving mines across the USA, Canada, Chile, Peru, Australia, and beyond.
To meet growing demand, Jerrod assembled a team of crushing industry veterans with unmatched collective experience. Walt Repinski, Senior Designer for every Raptor® crusher developed in Wisconsin, holds the same role at Optimum Crush. Dale Holzhausen, formerly a Senior Service Engineer at FLSmidth®, now serves as Account and Service Manager. Steve Starke, former Purchasing Manager at FLSmidth®, leads Operations. The team is further supported by retired engineers and specialists from FLSmidth®, Metso®, and Telsmith® — giving Optimum Crush a depth of machine-specific knowledge that no purely commercial aftermarket supplier can match.
Together, this team of cone crusher engineering veterans supplies nearly every component for FLSmidth® Raptor® XL500, XL600, XL900, XL1100, XL1300, and XL2000 cone crushers — as well as Metso® and Telsmith® machines. Their custom-engineered parts and on-site support have measurably improved crusher uptime, reduced operating costs, and increased crusher efficiency at mining operations across the USA, Canada, Chile, Peru, Australia, and beyond.
Lower Operating Costs. Longer Wear Life. Maximum Crusher Uptime.
Our Brand Promise: Radically Responsive, Relentlessly Reliable
Fractional Crusher Engineering Expertise On Demand
Our cone crusher engineers and technical specialists bring decades of hands-on experience designing, rebuilding, and optimizing FLSmidth® Raptor®, Metso®, and Telsmith® cone crushers. Whether you need on-site troubleshooting, a free liner analysis, or a dedicated engineering contact embedded in your operation, we scale our support to match your production demands — not the other way around.
Radically Responsive Crusher Support & Same-Day Shipping
We provide on-site crusher service and support whenever you need it, respond to quote requests within 24 hours, and maintain the largest Mining-Duty FLSmidth® Raptor® aftermarket parts inventory in the world to eliminate lead time delays. When your crusher goes down, you need answers and parts fast — not a ticket queue. That’s the difference between a parts vendor and an engineering partner.
Company Culture Built Around Crusher Performance
Built From the Ground Up by FLSmidth Raptor Design Engineers
Building Optimum Crush into the world’s most trusted aftermarket cone crusher parts supplier has taken the right people, the right engineering mindset, and an unwavering commitment to client success. What sets us apart isn’t just the quality of our custom-engineered crusher parts — it’s how we operate. Same-day responses. On-site presence when it matters. A willingness to solve problems that other suppliers walk away from.
That commitment is what has expanded our reach to mining and quarry operations across the USA, Canada, Chile, Peru, Australia, Papua New Guinea, Mauritania, and beyond. Our goal has never changed: to be the number one custom-engineered parts provider for mining-duty cone crushers worldwide — and to earn that position one crusher at a time.
Core Values That Drive Crusher Engineering Excellence
Put the Crusher First: Engineering for Uptime & Profitability
Offer engineered products and services that IMPROVE crusher efficiency to boost mine profitability.
Be RADICALLY RESPONSIVE in all facets of our business to keep the crusher running.
Teamwork Across Clients, Suppliers & Mining Communities
TEAMWORK extends beyond just our employees; it includes our FAMILIES, CLIENTS, SUPPLIERS, CONTRACTORS, and COMMUNITIES as we work as one team. It takes good communication, planning, forward thinking, and compromise from all to succeed.
Work-Life Harmony That Drives Field-Ready Performance
WORK HARD, SUPPORT CLIENTS, SUPPLIERS, and ONE ANOTHER while keeping focus on the values and people you work hard for.
A healthy home life allows for clear mind and a healthy work life.
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