FLSmidth Krebs is the world leader in the development and manufacturing of hydrocyclone separation equipment. We have been serving the industrial, water treatment, power utilities, automotive manufacturing, recycling, food & beverage, and pulp & paper industries along with mining industries since 1952. FLSmidth Krebs, is part of FLSmidth Minerals worldwide operations. Krebs is recognized around the world for its knowledge and expertise in the use of hydrocyclones (cyclones) for the recovery and classification of solids, removal of oil from water and severe-duty slurry pumping. Krebs works with an unrelenting focus on customer satisfaction and technical excellence. If you have an application that requires liquid/liquid separation, liquid/solid separation or in the case of recycling solid/solid separation we are the answer to your separation application.

Company details

5505 W. Gillette Road , Tucson , Arizona 85743 USA

More Office Locations Locations Served

Business Type:
Industry Type:
Water and Wastewater - Water Treatment
Market Focus:
Globally (various continents)
Year Founded:

This company also provides solutions for other industrial applications.
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FLSmidth Krebs has 63 years experience designing and manufacturing equipment for separation, classification, and dewatering. FLSmidth Krebs has built an unsurpassed reputation for technical expertise, quality products, and customer service.


For over 63 years, FLSmidth Krebs has worked with an unrelenting focus on customer satisfaction and technical excellence.

Our experience and knowledge gained through the successful completion of challenging worldwide projects has resulted in unique capabilities for problem solving in such diverse fields as aggregates, chemicals, alumina, mining, oil and gas, pulp and paper, pollution control, power generation, water, and wastewater.


Krebs is committed to consistently striving to make product improvements that will better serve our current and future customer needs in all industries and various applications through the application of hydrocyclone and pumping technology.

Focusing on correct design, and selection, FLSmidth Krebs utilizes the best materials to optimize equipment for your particular application. Our high quality cyclones, slurry pumps, and valves create finer separations, higher capacities, require less downtime, and help reduce maintenance costs.

Rely on proven brand names like KREBS gMAX hydrocyclones and KREBS millMAX™ severe-duty centrifugal slurry pumps to complement your equipment and complete your process flowsheet.

Production sites of FLSmidth Krebs include Tucson, Arizona to Feng Xian, China and many locations in between

Global Manufacturing and Production Locations

  • Tucson, Arizona
  • Feng Xian, China
  • Votorantim, Brazil
  • Santiago, Chile
  • Queensland, Australia
  • Neusiedl am See, Austria
  • Johannesburg, South Africa

Services Provided

  • Design
  • Spare parts
  • Repair and retrofit mining separation and slurry handling equipment
  • Customizing equipment to fit the customer's needs

Product Range

FLSmidth Krebs product range includes various millMAX pumps, Technequip Knifegate valves, and Tech-Taylor ball valves, and KREBS Hydrocyclones and customized manifold systems.


Richard Krebs and Kelly Krebs founded Krebs Engineers in 1952 and today FLSmidth Krebs is the world’s leading supplier of hydrocyclones, with offices in eight countries. Read how it all began.

Richard Krebs and Kelly Krebs founded Krebs Engineers

In 1950, Bob Clarkson and Kelly Krebs created a partnership called 'The Clarkson Company', for the sole purpose of manufacturing and selling Bob’s reagent feeder. In December of 1950, they purchased the rights to a cyclone like device called the Centriclone from an inventor named Norris Goodwin.

The Company was incorporated as Equipment Engineers in 1952, Dick Krebs, Kelly’s brother, was brought into the company later that year. In 1953, Equipment Engineers sold the rights to the Centriclone to Oliver Filters, a company that was later merged into The Dorr Company to become Dorr-Oliver. With the money from the sale of the Centriclone, the Company was able to develop the concept of the first heavy-duty mining cyclone, which had cast metal housings and replaceable
molded gum rubber liners.

Equipment Engineers sold its first commercial cyclone in 1953. It was a Model EE10-4 Cyclone sold to Sandy Muller Aggregate in Orange, California with serial no. 1000 (I guess they didn’t want Sandy Muller to feel like they were buying the first cyclone). In 1959, Kelly and Bob decided to split the Company into two separate companies.

Bob Clarkson took the valve and reagent feeder products and incorporated as The Clarkson Company.

Krebs Products and Logo in the Early Days

Richard and Kelly kept the cyclone line and the Company grew into what we know it as today, the world’s leading supplier of hydrocyclones, with offices in eight countries.

The Company changed its name from Equipment Engineers to Krebs Engineers in 1965 in honor of Dick and Kelly Krebs. Kelly died in 1959, and Dick died in 1962.

Dick and Kelly Krebs took a revolutionary approach to the calculation, design, and production of hydrocyclones and laid the base for the success of FLSmidth KREBS products today.

Quality Policy

FLSmidth Krebs is committed to providing the highest quality products and services that represent the greatest value to our customers and their continued success.  Quality is the responsibility of each employee and requires the pursuit of continuous improvement through the involvement of our employees, suppliers, and customers.

“The success of a Quality program depends on the employees understanding that their daily actions contribute to the quality of our products, even if their job title doesn’t include the word 'Quality'.”

Safety is No Accident

Krebs Tucson facility has over 1,000 Days Zero Lost Time Accidents. 

We are proud of our safety record and strive to do more every day to make our workers safe and our facility safe.

'The success or failure of a Safety Program is based on a safety culture that is created, maintained, and continuously improved by all employees.'