Industry Consultants


Note:The names that appear on this list have been volunteered by persons who have identified themselves as fluid power consultants. The names are in alphabetical order. Appearance on this list should not be construed as either a recommendation or endorsement by NFPA or an affirmation of professional competence.

If you'd like your name included on this list, please contact Carrie Berger at cberger@nfpa.com or (414) 778-3359.

Rance Herren, CFPSD, AI                                                                                                              
Director - Technical Services
Fluid Power SME
Houston, TX
(281) 888-6460

Rance Herren is the Director of Technical Services and founder of Fluid Power SME, a Houston, TX based Hydraulic and Pneumatic design and consulting company. He is a Certified Fluid Power System Designer and Accredited Instructor with over 38 years of hydraulic and pneumatic application experience in a variety of roles and industries (including 24 years in Oil and Gas). Mr.Herren is the former chair of the Fluid Power Hall of Fame; past President (2016) and board member of the International Fluid Power Society where he continues as a lifetime member, technical contributor, and advisor. 

Areas of Expertise Include:

  • Hydraulic, Electrohydraulic, and Pneumatic System Design and Component Specification
  • Software Driven Circuit Simulation and Analysis
  • Integrated Manifold Design
  • Documentation and Technical Writing
  • Component Sourcing Services
  • Hydraulic and Pneumatic Technical Training as well as IFPS Certification Preparation and Testing
  • Failure Analysis and Subject Matter Expert Witness
  • General Fluid Power Technical Consultation

Rance Herren is widely recognized as a Subject Matter Expert in fluid power system design, troubleshooting and failure analysis. He is a graduate of the Industrial Controls Technology program at California State University Fullerton, the Industrial Electrical Technology program at Chaffey College in Rancho Cucamonga, California and holds multiple advanced fluid power certifications.

        Mark Keller Headshot

Mark A. Keller, PE                                                                                                              
Engineering Consultant
Jasper, AL
(205) 538-0205


20 plus years of experience in fluid power design on mobile equipment, technical support, troubleshooting, training, warranty, legal and intellectual property support, manufacturing, and aftermarket sales.

Undergraduate and Graduate Degrees in Engineering from Auburn University.

Registered Professional Engineer, certified by the International Fluid Power Society as a Fluid Power Engineer, Pneumatic Specialist and Hydraulic Specialist.

Available for troubleshooting difficult hydraulic problems, design recommendations, vendor recovery, warranty assistance, technical support, training and legal and Intellectual Property support.

        Medhat K, Bahr Khalil Headshot

Medhat K, Bahr Khalil Ph.D.                                                                                                              
Director of Professional Education and Research Development
Applied Technology Center - Milwaukee Schoolf of Engineering
Milwaukee, WI
(414) 277-2232


Dr. Medhat Khalil, Director of Professional Education & Research Development at MSOE. Medhat has 25+ years of experience in fluid power. Medhat was the recipient of the “Otto Maha Pioneers in Fluid Power” award in 2012 and the “IFPS-Hall of Fame” award in 2021. Medhat is an author of 8 textbooks in the field of fluid power. He participated in many technical conferences and published several reviewed technical papers. Medhat has been certified by the International Fluid Power Society (IFPS) as: Certified Fluid Power Hydraulic Specialist (CFPHS) and Certified Fluid Power Accredited Instructor (CFPAI). Medhat is a member of many grand institutions such as Center for Compact and Efficient Fluid Power Engineering Research Center (CCEFP), listed Fluid Power Consultant by the National Fluid Power Association (NFPA), and listed professional instructor by the American Society of Mechanical Engineers (ASME), and National American Die Casting Association (NADCA). Medhat has been assigned as the chair of the education committee for the International Fluid Power Exposition since 2017. Medhat is the designer of the Universal Fluid Power Trainer. Medhat developed and taught countless courses for industry professionals worldwide. He has a balanced academic and industrial experience. Medhat had worked for several world-wide recognized industrial organizations such as Rexroth in Germany and CAE in Canada. 

Medhat is offering the following services:

 Expert witness in fluid power related cases

 Medhat is a nationwide recognized expert in fluid power professional education including instruction, developing curriculums; train the trainers, design training and test stands and developing E-learning modules. 

 Modeling and simulation of fluid power components and systems

 Design reviews for fluid power components and systems, 

 Electrohydraulic control systems conceptual design

         Thomas J. Labus
Engineering Consultant
SCIRE Corporation
1012 Tarrant Drive
Fontana, WI 53215
(262) 745-3157

Experienced (47+ years) engineer, educator and business entrepreneur in the area of fluid power component/systems design, development and application. Capabilities include:

  • Modeling and simulation of hydraulic components and systems using various commercial and custom software packages
  • Provide in-house training/education in the design and use/application of hydraulic and electro-hydraulic components and systems
  • Design of hydraulic cylinders for industrial and mobile applications including sealing technology
  • Design/development of hydraulic pumps, valves, motors, cylinders, accumulators, and pressure vessels for a wide operating range of pressures, flows and power
  • Short and long term product development based on application requirements
  • Litigation support services in product liability and patent infringement cases

Contact Info

6737 W. Washington Street, Suite 2350

Milwaukee, WI 53214

(414) 778-3344 (o)

(414) 778-3361 (f)