Zip Line Accident Videos & Braking Solutions

My name is Troy Richardson with Momentum Engineering. We sell zipline braking solutions! Our telescoping springs (one spring stops 1-MPH) install in minutes and are easy to maintain. Our trolleys use a frictional brake to slow zipliners. Our operations manuals are interactive and ten pages long (not pp. 1-150).
All our products are assembled and manufactured in the USA.
We design our springs to last for 1,000,000 cycles, but we prefer to replace the springs after 200,000 cycles (5:1 factor of safety) or four years.
I am trying to stop or slow all zipline braking accidents. Our new auto-braking trolley (wheel and brake pad). We sell test trolleys for $295. With our trolley, you can test your zipline using carabiner adjustment. These numbered slots change the brake force for the slopes and temperatures you work with at your ziplines. After testing, if your courses use two-wheeled trolleys, we recommend you order our trolleys with just three or four slots (braking adjustments) to reduce braking options you don’t need.
The significant aspect of our trolley is that we design carabiner slots for the slope, not the zipliners' weight (mass). Once calibrated for your zipline, the trolley stops all your riders a few feet before your springs. This practice has kept all the zip lines using our products accident-free, not for twenty-one years. Our parent company, AA Machining & Welding, Inc., built a safer zipline at Park City Mountain Resort in 2002.
Our trolley slows each zipliner consistently because their weight applies their brake force (e.g., 80 lbs.=80 lbs. of force on the brake pad), and the auto braking trolley equalizes their weight or mass (m) and their momentum (p). Gravity (g)is a constant 9.8 m/s^2. The momentum formula is p=mgv, but since gravity is constant, it's just p=mv (mass * velocity).
I sold our telescoping springs to a course after they tested their free-wheeling trolleys (two wheels) with 80 lb. zipliners and noticed they arrived at 6MPH, but their 250 lb. zipliners arrived at 12+MPH. Two-wheeled trolleys are accident-prone (Our trolley v. SR-71). Reduce your liability with safer braking systems.
Call 435-272-2389 for up to 40% off list pricing on www.zipsafe.org.