About Us

Our Company

“Growth through Superior Customer Service and Excellent Design”

Dyno Tech Services’ team is very excited about our new dynamometers, the DT1055, DT843 and DT526. Currently we have many units in operation from coast to coast and beyond. The feedback we have received from current owners of the DT843 and DT526 have been phenomenal! Take your time, look over our website, contact us when you have further questions, even if you currently are not in the market for a new unit. We would love to give you any information you are needing, we enjoy talking about the new 21st century choices you now have.




Remember, our designer Aaron Warsaw, was born into the dynamometer business, as his father, Art Warsaw, founded AW Dynamometer in 1957. Aaron worked side by side with his father until the sale of the business in 2002, to the current owners. During this time, Aaron was involved with design, testing, and manufacturing of many types of dynamometers. Mike Grems, owner of Dyno Tech Services, worked with Art and Aaron and has been in the ag pto market for over 30 years. Mike has knowledge in rebuilding, repairing, servicing, and manufacturing ag dynamometers. There isn’t anything our team can’t do in this market.

Our customers and employees are our #1 assets, without customers we wouldn’t need employees, without employees we wouldn’t have customers!!

We have had 100% positive feedback from our customers. Dyno Tech is able to boast the most knowledgeable team in the prony brake ag pto market to date with a combined 150 years of experience.

Also, keep in mind, we are still very active in service, parts, and repairs on the AW ag pto dynamometers out in the field. Dyno Tech uses OEM equivalent parts and oil as we have for the past 40+ years.


We look forward to serving you in your dynamometer needs now, and far into the future!

Our Vision

A customer is the most important visitor to our business.

He is not dependent on us, we are dependent on him.

He is not an interruption in our work, he is the purpose of it.

He is not an outsider in our company, he is part of it.

We are not doing him a favor by serving him, he is doing us a favor by giving us an opportunity to do so.


Brief History of Our Company

MAY, 1980

Merv Grems founded Dyno Tech Services as a service and repair center for PTO dynamometers.

Merv was also a sales rep for Arthur Warsaw of AW Dynamometer.

JAN, 1990

Mike Grems joined his father at Dyno Tech Services doing repairs on dynamometers.

JAN, 1992

Merv passed away suddenly leaving Mike with Dyno Tech Services.

Mike became sales rep for Arthur Warsaw of AW Dynamometer.

FEB, 2002

Mike Grems becomes sales rep for the new owner of AW Dynamometer – Delbert Robinson.

FEB, 2005

Dyno Tech Services becomes a corporation.

FEB, 2012

Mike parts company with Delbert Robinson and AW Dynamometer.

MAY, 2012

Dyno Tech Dynamometers were in designing stage.

OCT, 2014

Thousands of hours of testing finished and the 1st DT843 was put in operation.

MAR, 2016

DT526 was born and put in to operation.

JAN, 2016

DT1055 prototype in testing stage.

20 April 2017

Utility Patent application is published.

20 March 2018

Utility Patent #9921117 is issued – Dynamometer for measuring power output of a prime mover driving a rotating shaft having plural torque drive bars arranged around an outer periphery of a stator plate.

April 16 2020

Patent # 2 applied for by Aaron Warsaw

January 26 2021

Utility Patent #2 issued to Aaron Warsaw – A dynamometer is a device for measuring mechanical force, or power, transmitted by a rotating shaft. Amongst the various types are “absorption dynamometers,” which produce the torque they measure by creating a constant restraint to the turning of a shaft by mechanical friction, fluid friction, or electromagnetic induction.