About Whirlwind Engineering, Inc.
Founded in 1994, Whirlwind Engineering Inc. has established itself as a leader in the design, development and manufacturing of innovative process solutions and equipment. Based in Grand Rapids, Michigan our state of the art technical center and manufacturing facilities produce bag dump stations, sifters, declumpers, singulators, grinders, modular conveyors, and blenders. We serve diverse industries including food, consumer products, pharmaceutical, chemical, automotive and aerospace with our multi-functional and custom solutions.
Our Rich Heritage
While Whirlwind Engineering was founded in 1994, our story begins much earlier with our sister company, Mulco Engineering, in the United Kingdom. Mulco’s legacy of innovation stretches back to 1912 when it was established as Mulco Specialties in Aberdeen, Scotland by Adolf Muller.
In 1948, Ernie Muller of Mulco developed the first generation elevator sifter which became the forerunner of the revolutionary ES4 process system. This technology initially modernized bakeries in the U.K. and Europe and ultimately transformed processing and material handling in various industries.

30 YEARS STRONG
1994-2024

The Birth of Whirlwind Engineering
Our founder, Steve Cencich, recognized the immense potential of the Mulco system when he met Mike Muller, grandson of Adolf Muller of Mulco and a key figure in its development. Impressed by the machine’s capabilities and envisioning its applications for custom machines across various industries, Steve was inspired to establish Whirlwind Engineering in 1994.
This fortuitous meeting and Steve’s visionary approach led to the adaptation and evolution of the ES4 process system for the North American market, setting the foundation for Whirlwind Engineering’s success in multi-functional processing and material handling equipment.
Our Expertise
With over 30 years of experience in North America and drawing on the seven-decade legacy of Mulco Engineering, Whirlwind Engineering brings a wealth of knowledge and innovation to solve your processing challenges. Our team of skilled engineers and technicians work tirelessly to develop multi-functional, space-saving, cutting edge solutions that optimize efficiency, improve product quality, and streamline operations for our clients.

Adolf Muller, founder of Mulco Specialties
Customer-Driven Innovation
At the heart of Whirlwind Engineering’s success is our unwavering commitment to customer satisfaction. We believe that the best solutions, whether it’s a food declumper, milling machine, sifter, or a custom machine, come from a deep understanding of our clients’ challenges and aspirations. Our approach includes:
- Collaborative Consultation: We work closely with each client to thoroughly understand their unique requirements.
- Tailored Solutions: Rather than offering off-the-shelf products, we design and engineer solutions that perfectly fit each client’s specific needs.
- Continuous Improvement: We maintain ongoing relationships with our clients, constantly seeking feedback and looking for ways to enhance our products and services, from food grinders to material handling systems.
- Responsive Support: Our dedicated support team ensures that our clients receive prompt assistance whenever needed, minimizing downtime and maximizing productivity across all our equipment.
Our machines are designed to handle a wide range of processing needs, offering unmatched versatility and efficiency. To learn more about the full capabilities of our equipment, visit our dedicated page for detailed information. Also, be sure to explore our Test Lab page for an inside look at the cutting-edge work we do every day.
Looking to the Future
As we look to the future, we remain committed to our founding principles of innovation, quality, and customer satisfaction. We continue to build upon the rich legacy of the Mulco system, adapting and evolving it to meet the changing needs of modern industries, whether you’re in food processing, pharmaceuticals, chemical manufacturing, automotive/aerospace, and consumer products
Whether you’re looking to optimize your current operations with a new food sifter or declumping machine or revolutionize your production process with a custom machine, Whirlwind Engineering is your trusted partner in achieving your goals.
Connect with us today to discover how our customer-driven approach can propel your business forward.

Whirlwind Engineering proudly received the prestigious Inaugural Award for Innovation in Powder and Bulk Technology.
Customer-Driven Innovation
