Welcome to

JMC Heavy Movable Structure

Component Sales

Your Trusted Partner in Power Transmission and Motion Control Components for Heavy Construction Projects

Engineered for Extremes

Components built to withstand heavy loads, harsh environments, and continuous operation.

Innovative Solutions

Cutting-edge motion control technology for seamless automation and efficiency.

Global Expertise

Decades of experience supporting landmark projects worldwide.

About Us

High Quality Components Tailored for Heavy Machinery

Headquartered in Wisconsin, serving public and private clients in the northern midwest states, powering projects that shape the future of infrastructure.

Precision Gearing

State-of-the-art equipment for more accurate, reliable gears. One-of-a-kind manufacturing capabilities offer more gearing options.

Innovation

Leading manufacturer of drive components, clamping fixtures and remote controls.

Mission Critical Applications

Broad range of high-quality industrial power transmission components for distributors and OEMs for various industries.

Proud to Represent

World Class Experienced Manufacturers

OVERTON CHICAGO GEAR

Overton Chicago Gear is a full-service manufacturer of open gearing and gearboxes. For more than 130 years we have delivered high performance, mission critical gearing and gearboxes.

RINGSPANN

Power Transmission, Clamping Fixtures, Freewheels, Brake Systems, Shaft-Hub Connections, Overload Clutches, Couplings, Precision Clamping Fixtures, RCS® Remote Control Systems.

STANDARD MIETHER

Specialty bearing housings, seals, and accessories, Standard Miether has been leading the industry in quality and value for over 75 years. SAF Series Split Housing Bearings, FCL/FCS Series Cartridges, MMW Series Solid Housings, Heavy Industrial Seals, and Custom Machining.

MOVABLE STRUCTURES

Experts in Heavy Duty Components

We Are Building Your Projects

Our journey began with a passion for engineering excellence, focusing on the unique challenges of heavy construction. Today, we collaborate with top manufacturers and engineers to deliver components that exceed industry standards like ISO 9001 and ASME certifications.

 

Our engineers understand the unique requirements of government-funded construction: strict compliance, long service life, seismic resilience, remote operability, and minimal downtime in mission-critical applications.

We deliver high-performance components that power the nation’s most demanding infrastructure projects—including U.S. Army Corps of Engineers (USACE) locks and dams, state and federal Department of Transportation (DOT) movable bridges, federal flood control systems, and major government-led civil works. From massive spillway gates and lock miter gates to drawbridges, vertical lift bridges, and bascule mechanisms, our solutions provide the precision, extreme durability, and reliable motion control required for public-sector excellence.

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