Surge-type actuator features a corrosion-resistant composite master cylinder and a primed finish. 8" Adjustable down channel lets you mount coupler attachments (sold separately) in 1 of 3 positions. Welds onto a 50-degree A-frame trailer.
Features:
Specs:
Note: Because this actuator does not include a reverse lockout, it is recommended that you equip your trailer with free-backing brakes so that you can drive in reverse without the actuator triggering your trailer's brakes.
When you apply the brakes in your tow vehicle, deceleration occurs and momentum pushes your trailer toward the rear of your vehicle. With surge brake systems, the hydraulic actuator is triggered as your trailer moves forward, once your tow vehicle starts to slow down. When this happens, the actuator contracts, applying force to its master cylinder. This in turn supplies the necessary hydraulic pressure to engage your trailer's brakes.
Adjustable Channel Design
The adjustable channel on this trailer brake actuator allows for ultimate versatility. Mount almost any type of coupler (sold separately) - from a standard ball coupler to a lunette ring or clevis attachment - to fit your specific application. In addition, the 3 mounting positions on the channel let you adjust the height of the coupler. Just place the coupler so that it matches the height of the ball mount or other hitch attachment on your tow vehicle and you will be able to tow your trailer levelly.
This actuator is great for tall trailers. This is because the adjustable channel is positioned so that the mounted coupler can sit below the actuator tube, allowing for a greater drop than with a standard center-mounted channel. As a result, you can line up your tall trailer with your tow vehicle's hitch for a level setup.
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Hello, everybody. This is Jeff at etrailer.com. Today we're gonna take a look at this DEMCO A-Frame eight inch adjustable channel down hydraulic drum break actuator. Has an 8,000 pound gross towing weight capacity, and a nice, prime finish. Now, as we've mentioned, this is designed to fit the 50 degree A-frame trailers. And this is a hydraulic actuator which will activate your trailer's brakes when your tow vehicle slows or stops.
Basically, what happens is when you apply the brakes in your tow vehicle, deceleration will occur, and a momentum will push your trailer toward the rear of your vehicle. And with a surge brake system, this actuator's then triggered as your trailer moves forward once your tow vehicle starts to slow down. And when this happens, the actuator will contract. Basically, this inner slide right here will go into the outer case, and it applies force to the master cylinder in the back here, which in turn, supplies the necessary hydraulic pressure to engage your trailer's brakes. Now, right here they do use an acetal co-polymer lining.
Provides a nice, smooth operation as the actuator telescopes in and out. We mentioned the adjustable channel right here, has three different mounting positions for your coupler. Now, the coupler is not included. We do sell that separately. We did mention, if you look at this channel, it is a channel down design, so it allows for greater drop for tall trailers.
The channel height itself, if we measure it bottom to the top, is eight inches. Inside width, it's gonna be measured inside the inside, is standard three inches. And this is a heavy duty steel construction. Mentioned it has a nice, prime finish for better corrosion resistance. And the master cylinder in the back here, it is a composite master cylinder, which is durable and efficient.
It's a glass reinforced nylon construction so to resist rust and corrosion, and it offers a large reservoir to provide increased capacity for brake fluid. The very top here, you have your standard automotive style diaphragm cap, which will create a completely enclosed system that'll prevent contamination of your brake fluid. Now, right here up at the top, it does include this breakaway cable with the hook and the latch on it. And this is included and it is required by law, because this part here will prevent a trailer runaway situation. So what happens is when you connect your trailer to your tow vehicle, you also take this hook with the latch and hook this to your tow vehicle. So what would happen is, by chance, if your trailer became disconnected from the tow vehicle, it will pull on this cable, which would activate the lever, which again applies the pressure in the master cylinder to apply the brakes on your trailer. So, this does prevent a trailer runaway situation, and as we mentioned, it is required by law. Now, this is a weld-on installation. You can see, as we mentioned, it's designed to be welded or mounted to a 50 degree A-frame trailer. It is made in the USA. Application, we mentioned, is the A-frame trailers with hydraulic drum brakes, gross towing weight capacity of 8,000 pounds, and a maximum tongue rate of 800 pounds. One last note I do wanna mention. If you look on the back here on the brake cylinder, the master cylinder, it does not include a reverse lockout, and that is recommended that you equip your trailer with either a reverse lockout solenoid on the back here or to have free backing brakes on your trailer, so that you could drive in reverse without the actuator triggering your trailer's brakes. But that should do it for the review on this DEMCO A-Frame eight inch adjustable channel down hydraulic drum brake actuator with the 8,000 pound gross towing weight capacity and a prime finish.
Average Customer Rating: 5.0 out of 5 stars (1 Customer Reviews)
Surge-type actuator features a corrosion-resistant composite master cylinder and a primed finish. 8" Adjustable down channel lets you mount coupler attachments (sold separately) in 1 of 3 positions. Welds onto a 50-degree A-frame trailer.
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