What PSI Rating Does the Actuator Need To Be Rated for When Switching to EOH Disc Brakes

Updated 05/07/2020 | Published 05/06/2020

Question:

I have a tandem axle trailer with a TIe Down 46304 Disc Brake set on the rear axle and a surge actuator. I want to convert to Electric/Hydraulic system. The 46304 is only rated to 1000psi. If I add another 46304 set to the front axle and a Dexter 1000psi electric/hydraulic actuator would that system be workable. I see that most disc brake systems recommend 1500psi. My other option is add 4 new disc brakes and go with the 1600psi Dexter actuator. Any recommendations would be appreciated.

asked by: Daniel M

Helpful Expert Reply:

The system requirements for disc brakes are different than the system requirements for drum brakes. Disc brakes require a higher psi rating of 1600+ in order to achieve optimal performance whereas drum brakes only require 1000 psi. I would be willing to bet you will notice an increase in stopping power if you were to switch to a 1,600 psi actuator since you have disc brakes but nevertheless you'll need to obtain one rated for this when you convert to electric over hydraulic. I recommend the Dexter DX Series Electric Over Hydraulic Brake Actuator for Disc Brakes part # K71-651.

expert reply by: Conner L