Surge actuator features a corrosion-resistant composite master cylinder and a durable black powder coat finish. Adjustable down channel lets you mount coupler attachments (sold separately) in 1 of 3 positions. 5-Hole bolt-on case.
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.
Today we're going to take a look at the Demco 8" Adjustable Channel Down Hydraulic Drum Brake Actuator with a 12,500 hundred pound weight capacity. This hydraulic actuator will activate your trailer brakes when the tow vehicle slows or stops. It has a adjustable channel right up front here that has three different mounting positions for the type of coupler you're going to use and if you notice, it is a channel down design, so it allows for a greater drop to level up your trailer to your tow vehicle. On the back here, you can see that it uses a composite master cylinder. It's very durable and efficient. It uses a glass reinforced nylon construction to help resist rust and corrosion. It's a very large reservoir to provide increased capacity for brake fluid.
On the top here, you can see that it uses an automotive style diaphragm cap which creates completely enclosed system to help prevent any contamination of the brake fluid. On the inside of this actuator, it uses an acetone co-polymer lining to provide a nice smooth operation as this actuator telescopes in and out. The brake away is included; you can see it has the hook with the cable attached to the lever. Basically, what you'll do with this is attach this hook to your tow vehicle and, if by chance your trailer gets detached from your tow vehicle, it will pull on this cable which will pull the level forward and lock up the brakes to keep the trailer from a runaway situation. This actuator is made of a heavy-duty steel construction. You can see it has a nice black powder coat finish over it to help resist corrosion. At the very bottom you can see the mounting holes; this is a bolt on installation.
The five hole case right here is universal. It has five mounting holes on each side of the actuator. When you do bolt this on, it does require the use of five 1/2" by 4 1/2" grade five bolts for mounting. They are not included. We do sell those separately.
This part is made in the USA. A few specs on this. The applications on this is trailers with hydraulic drum brakes. The gross towing weight capacity is 12,500 pounds. Maximum tongue weight is 1,250 pounds. The channel width right up here, the inside measurement is going to be right at three inches.
The channel height from the very bottom to the very top, put the ruler on it, you can see is eight inches. This is designed to mount on a straight three inch wide trailer tongue and this also goes by the model number DA10. One last note on this I want to let you know is because that this actuator does not include a reverse lock out here, it is recommended that you equip your trailer with three backing brakes so that you can drive in reverse with the actuator triggering your trailer brakes. The should do it for the review on the Demco 8" Adjustable Channel Down Hydraulic Actuator with a 12,500 pound weight capacity.
Average Customer Rating: 5.0 out of 5 stars (5 Customer Reviews)
Surge actuator features a corrosion-resistant composite master cylinder and a durable black powder coat finish. Adjustable down channel lets you mount coupler attachments (sold separately) in 1 of 3 positions. 5-Hole bolt-on case.
These actuators are great. As long as you keep your brakes shoes adjusted also you can't beat it.
Never disappointed with the quality of the products
Always a pleasure working with etrailer.
Repeat customer. Great service and quick shipping. I will continue to be a repeat customer.
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