AC-Tek is a global leader in the design of overland conveying systems. We provide our clients and partners with the latest in conveyor technology and engineering expertise.

Overland Conveyor Design

Our commitment is to provide high quality and innovative engineering services. We strive to be the engineering firm of choice for overland conveyor design and bulk materials handling services.

Conveyor Design Software

AC-Tek realized the industry’s need for a new, easy to use, conveyor design program filled with the latest in technology and current industry standards. Sidewinder is AC-Tek's response to this need. It represents a new standard in easy to use conveyor design software and engineering technology.

Consulting Services

AC-Tek’s core business is the design, and optimization, of complex overland conveyor systems. Everything we do, from in-house laboratory testing and software development, to commissioning and field measurements, has this single goal in mind. We strive to provide our clients with the latest in conveyor technology, resulting in a safe, reliable, and commercially competitive design.

Worldwide Expertise & Experience

Our engineering team has an extensive repertoire containing some of the most complex and challenging conveyor systems designed to date. These systems include long distance, horizontally curved, high tonnage systems, high lift, regenerative, and pipe conveyors.

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Longest Conveyor (m)
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Strongest Belt (N/mm)
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Sidewinder Users
Years in Service

Worldwide Experience

Experience is everything when designing a system, and experience is what sets AC-Tek apart.

Everyone’s got advice, AC-Tek has answers.

Long Overland Conveyor Systems

AC-Tek has designed many of the world's longest overland conveyors.

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Horizontally Curved Conveyors

AC-Tek leads the world in complex horizontally curved conveyor systems.

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Totally Enclosed Pipe Conveyor Systems

AC-Tek has designed and obtained field measurements on many pipe conveyors around the world.

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High Capacity & High Lift Conveyors

AC-Tek has designed many of the world's highest capacity conveyor systems utilizing the strongest steel cord belting every manufactured.

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Conveyor Design Software (Sidewinder)

Sidewinder was developed from the ground up using the latest software development tools and years of conveyor design experience. Let Sidewinder help you optimize your conveyor design in order to provide a safe, reliable, and economical system.

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Static & Dynamic Analysis

Dynamic analysis simulates the time transient belt tensions, velocities, and displacement that occur during starting and stopping.

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Transfer Chute Design: DEM (Newton)

Transfer Chutes

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Research & Development

AC-Tek has developed a wide range of in-house test equipment. From belt troughability testing, to a temperature controlled idler testing system, to a range of custom material characterization equipment.

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AC-Tek Takes Conveyor Technology to the Limit

One of the world’s leading experts on the design of overland conveyors, David Kruse of Advanced Conveyor Technologies Inc (AC-Tek), was recently in South Africa to speak at the Beltcon 15 conference, held in Johannesburg in early September. Modern Mining managed to catch up with him at the offices of Sandvik Materials Handling (SMH) for an interview which focused on AC-Tek’s considerable contributions to overland conveyor technology…read more here.
Modern Mining Magazine
"AC-Tek Takes Conveyor Technology to the Limit"

AC-Tek's Founders

Ryan Lemmon


Ryan Lemmon received both his Bachelor and Master of Science Mechanical Engineering from the University of Idaho. He is co-owner of Advanced Conveyor Technologies, Inc. His talents include design and analysis of complex conveyor, numerical analysis methods including discrete element method (DEM) and finite element analysis (FEA), data acquisition and field measurements, research and development, and programming.

David Kruse


David Kruse received his B.S. in Engineering Mechanics and Astronautics from the University of Wisconsin, Madison. He also has a Masters of Science in Aeronautics and Astronautics from the University of Washington. He is co-owner of Advanced Conveyor Technologies, Inc. His specific interests are in the areas of belt dynamics, data acquisition and field measurements, rubber rheology, and transfer chute design using the discrete element method (DEM). He has developed a wide variety of engineering software for the mining industry that is currently in use today.