Typical Tractor PTO dynos include: 96-volt DC #150 eddy-current absorber, eddy-current power supply control module (120-volt AC input), temperature-compensated full-bridge S-beam load cell, DYNOmite-Pro data-acquisition computer, Auto-Load Control, magnetic RPM pick-up, 28-channel data harness, mobile trailerable frame, heavy-duty absorber to PTO shaft, tractor PTO hitch mounting adapter, calibration arm, full-function data wiring harness, and manual (Other voltages available – call.) Watch one customer's tractor-PTO dyno video!

DYNO-MAX™ software option creates a full engine dynamometer lab console on your Windows PC. Features include: real-time trace graph display, adjustable limit warnings, voice alarms, pushbutton controls, user configurable analog and/or digital gauge ranges… along with advanced data tools and reporting functions. (Call or click for full list of features.)

Integrate your Windows laptop using DYNO-MAX, together with appropriate automated electronic load and throttle control hardware options, for keyboard dyno control. Without special programming you can easily execute many complex break-in or endurance simulations and custom engine test cycles. 

DYNOmite data-acquisition electronics eliminate paper and pencil data logging - automatically recording true Hp, torque, RPM, elapsed time, etc. at up to 1,000 readings per second (per channel). It can apply inertia compensation and SAE atmospheric correction factors. Test results display on either your DYNO-MAX equipped PC or optional portable DYNOmite LCD. Either configuration can output reports to your compatible printer (an optional ASCII thermal printer is available for portable operation).

Trailer options include our DOT approved light package, safety chains, plate mount, and VIN numbers for registering the trailer for on-road travel. Easily travel from service shop to service shop or even in-field tractor testing.

Adjustable leveling stabilizers are frame mounted (and  retractable for towing) for testing on uneven surfaces. They allow handling the higher-torque loads of larger or modified tractors.

Heavy-duty driveshafts are used in both our single or dual (shown above) absorber PTO dynos. All the shafts and U-joints are heat treated – for longer life under the extreme torque loads of full throttle PTO testing. 

Precision torque transducers all use temperature-compensated full-bridge strain gauges. Environmentally sealed industrial S-beams load cells measure the precise shaft torque, allowing the data-acquisition system to accurately calculate repeatable real-time horsepower. Pushbutton, semi-automatic zero-offset calibration is a standard feature. 

2,400 foot-pound* and 1,200 Hp* capacity using our dual eddy current absorber configuration. The lighting fast control of the electrict absorbers provides far better controllability than older hydraulic pump type PTO dyno designs. (Other absorber combinations are available to test engines from 1 to over 10,000 Hp.)

Sophisticated data-acquisition features that include: “Smart Record™,” data dampening, spike filtering, playback data time averaging, atmospheric correction, auto-zeroing, instant playback, and integral rev-limiter. 

“Pro” console upgrade includes a genuine Intel® equipped Dell™ PC and a 17" high-resolution LCD monitor. It's optimized for DYNO-MAX’s real-time color graphics. (See specifications table for full list of features.)

Reduce field service problems by getting it right the very first time, while improving customer satisfaction. Uncovering turbo or injection system malfunction is no longer trial and error.

Low-cost and rapid hookup are just two benefits of the DYNOmite PTO system's unique design. Both clockwise and counter-clockwise rotation output shafts may be tested.

Easy test set-ups by mechanics and technicians with no dyno experience. Get quick horsepower plots of the entire torque vs. RPM curve. No prior experience with computers is needed. It can take less than an hour to install, test, and output report data with the DYNOmite. Just back up to the dyno, hook up the shaft, and begin testing.

Automated load control is a standard feature. Just push the buttons to select the operating RPM, or set a sweep rate and allow the DYNOmite’s advanced PID algorithms to run the whole test.  The computer logs all data automatically. (Simultaneous electronic throttle control, via DYNO-MAX, is also an available option.)

Advanced options - including: thermostatically controlled cooling tower, fuel flow and airflow turbines, “Weather Station,” EGT (exhaust gas temperature) thermocouple kits, pressure transducers, smoke opacity meter, thermistors, electronic throttle control, and more.

Live-person technical phone support provides a significant advantage over other companies’ frustrating “voice mail” tag. Our standard hardware phone and e-mail support, plus access to the special DYNOmite owners 24/7 web support area, are all FREE!