Power Test, Inc.

45X Series

Water Brake Dynamometer

Read More

The 45X-Series Water Brake Engine Dyno is designed for testing on-highway, construction, mining, power generation, and marine diesel applications. With power capacities ranging from 100-4,500 HP and operating speeds up to 4,000 RPM, the 45X-Series allows a wide range of engines to be tested. Constructed with lightweight, non-ferrous alloy, this dynamometer is a robust, high-speed, high-capacity, testing solution.
This trunnion-mounted, fixed-base water brake engine dynamometer may be used for continuous-duty engine power verification, quality assurance, endurance, and certification testing.

  • Inlet control allows for low minimum horsepower
  • Low-inertia and high-absorption characteristics in a compact package
  • Removable bearing and seal housings facility technical service without the need for disassembly of the absorber
  • Through-shaft design allows either end of the dynamometer to be driven and for dyno mounted starting systems to be used
  • The ability to test a wide range of engine displacements on the same dynamometer.
  • Through-shaft design allows either end of the dynamometer to be driven and to accept additional dynamometers in tandem plus a variety of accessories including starting systems.
  • Equal absorption capabilities in either direction of rotation.
Max Horsepower

2,500-5,000 HP


0-4,000 RPM


15,000 ft-lbs

  • On-highway
  • Construction
  • Mining
  • Power Generation
  • Marine Diesel
Contact Us

Product Specifications


Model Power Torque Speed
45X06 2,700 HP (2014 kW 3,545 ft-lbs (4806 Nm) 4,000 RPM
45X07 3,150 HP (2349 kW) 4,135 ft-lbs (5606 Nm) 4,000 RPM
45X08 3,600 HP (2684 kW) 4,727 ft-lbs (6409 Nm) 4,000 RPM
45X09 4,050 HP (3021 kW) 5,318 ft-lbs (7210 Nm) 4,000 RPM
45X10 4,500 HP (3344 kW) 5,909 ft-lbs (8011 Nm) 4,000 RPM