This document summarizes the benefits of using an eddy current chassis dynamometer over a water brake dynamometer. An eddy current dyno has lower operating costs since it does not require water cooling systems or risk of flooding. It also has lower maintenance costs since components like gearboxes are not needed and eddy current brakes last indefinitely. Overall, an eddy current dyno is a more cost-effective and environmentally friendly solution for vehicle testing compared to a water brake dyno.

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Why a Chassis Dyno Makes
(Dollars &) Sense
PowerTestDyno.com

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4. Chassis Dynamometers
Eddy Current and water brake chassis dynamometers
for dyno testing heavy-duty on and off-highway
vehicles.
• Single-, Double-, and Triple-axle designs

5. Chassis Dynamometers

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• Engine Dynamometer testing
• Chassis dynamometer testing (pictured below)
• Transmission and Hydraulic component test stands

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9. Chassis Dynamometers
• WHY a Chassis Dyno?
• How do I know it Pays Back?
• Why an Eddy Current Chassis Dyno?
• Why buy NOW?

10. Why A Chassis Dyno?
• Fix it right the first time
• Create HAPPIER customers that STAY LOYAL
• Prove your quality with professional reports
• Diagnose more problems
• Sell more parts
• Bill more labor
•Generate MORE PROFIT

11. How Do I know it Pays Back?

12. Why an Eddy Current Dyno?
• Dramatically reduced Operating
Costs and Headaches
• SIMPLE installation
• NO cooling system needed
• “Green” Technology

13. Why an Eddy Current Dyno?
• LOW Maintenance Costs
• HIGH Reliability
• FEW headaches
• Increased PROFITS

14. Why an Eddy Current Dyno?
Typical Water Brake Chassis Dyno:
 Water supplied to water brakes provides resistive force, or “load”
 Water is heated rapidly and needs to be continuously cooled or drained to sewer
“Non-Green” Water Brake Cooling Solution: Utilize municipal water and dump hot water to sewer
 Water usage: approx. 400 gal per test
 For 80 tests per month (20 per week, or 4 per day) = 390,000 gal per year
 Annual Water/Sewer Cost: $5,900 (avg. U.S. rate = approx. $15/1,000 gal.)

15. Why an Eddy Current Dyno?
“Green” Water Brake Cooling Solution: Utilize an accompanying Cooling Water System
Non-freezing Climate:
Cooling System pumps and control panels
Roof-top 100 Hp cooling tower and 5,000 gal. outdoor storage tank

16. Why an Eddy Current Dyno?
Freezing Climate:
5,000 gal. storage tank indoors to prevent freezing-Larger bldg. req’d
Elevated 100 Hp Cooling Tower
Cooling System expense:
 System Equipment Price: approx. $30,000 (not including installation)
 Installation price varies by location, $20,000 min.
 Pump Electrical consumption: varies based on number and length of tests

17. Why an Eddy Current Dyno?
Water Brakes present Operational Headaches and Expenses
 A Water Brake dyno pit often becomes filled with water, oil and debris, and is generally unpleasant
 Gearboxes are often needed to increase water brake rpm and provide adequate load at slower speeds
o Gearboxes require lubrication to avoid catastrophic failure
o Gearboxes and water brake components are generally replaced every 7-10 years
 Dyno pit is susceptible to clogged drains and flooding, which ruins vented gearbox
 Water brakes clog with mineral deposits over time and no longer create load
o Cost of replacement is approx. $28,000 - $35,000 for 2 water brakes and 2 gearboxes (normal
configuration is 2 of each)

18. Why an Eddy Current Dyno?
Eddy Current Chassis Dyno (Green solution as-is):
 Air-cooled, waterless system
 No water in pit other than dripping from vehicle
 Eddy Current brakes utilize electricity and magnetic fields to create load
 No gearboxes needed – Eddy’s create adequate load at all normal operating vehicle speeds
 Extremely fast response time
 Eddy Current brakes last indefinitely
 Only greasing is for bearings and carried out from easily accessible central manifold
 Electrical Use only (no water consumption):
o Approximate use: 1.4 kW-hrs per test
o For 80 tests per month, 1,343 kw-hrs per year
o Annual Electricity cost: $161

19. Why Buy NOW?
• Fix it right the first time
• Create HAPPIER customers that STAY LOYAL
• Prove your quality with professional reports
• Diagnose more problems
• Sell more parts
• Bill more labor
•Generate MORE PROFIT

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Our Niche:
Awesome machines, logical and creative
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21. Giving In Partnership with our Customers
2014 Donation to Texas Transportation Association College Scholarship Fund
-On behalf of valued customer “Lonestar Trucking Group”

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PowerTestDyno.com
Dan Jens
Regional Account Manager
danj@pwrtst.com
262-252-4301
About Me
• 15+ years sales & customer
service exp.
• 10+ years manufacturing
exp.
• Former US Army SGT