Heavy-Duty FabricatiOn fOr Reliable Mining Equipment Manufacturing
Horizontal Machining & Manufacturing Inc. (HMMI) entered the oversized manufacturing market in the early 1990s to provide homegrown solutions for heavy-duty mining operations throughout the upper Midwest. For decades, we have dedicated ourselves to proactively anticipating the growing needs of our customers requiring robust mining equipment manufacturing through investing in some of the largest, most advanced capabilities in the industry. These powerful, custom-designed machines are capable of rapidly producing high-quality precision components strong enough to withstand the rigors of the mining industry. We are passionate about meeting and exceeding the needs of our customers through innovative solutions designed to ensure cost-effective and on-time delivery of custom mining equipment components from excavators to drills and everything in between.
LOng-Length Metal FOrming
As the area's most trusted boom manufacturer, we maintain extensive forming capabilities that quickly bend metal to exacting requirements in materials up to 26’ long, reducing welding requirements for superior durability.
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Advanced Large-Scale Welding
The longer a component is, the more likely it is to become warped, twisted, and distorted during the welding process. However, HMMI custom-built a specialized four-seam welding machine that rapidly and simultaneously welds up to four seams in parts up to 50’ long.
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Cutting-Edge Machining POst-Weld
After decades of producing custom oversized components used across diverse industries, HMMI understands the unique challenges of maintaining tight tolerances during the welding process. Instead, we have invested in advanced post-weld machining capabilities that quickly produce precision results post-weld in components up to 21’ long.
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Oversized Finishing Capabilities
The robust machines used throughout the mining industry are subjected to some of the harshest conditions, which can degrade and corrode unprotected metals, leading to increased maintenance costs and a lower average lifespan. At HMMI, we maintain comprehensive oversized finishing capabilities that protect the metal from exposure with visually appealing results.
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