Pair of 15 Garage Door Plunger Bumper Springs

Pusher springs are used to create a downward acting force against the top section of your garage door in order to prevent cables from slipping off the drums. They are particularly necessary when jackshaft side mount openers are installed on standard lift doors that lack a natural downward acting force.

The primary function of pusher springs is to maintain constant cable tension when the door begins the down cycle, which is crucial for standard lift doors that do not have a natural downward acting force like high lift or full vertical lift doors. Without pusher springs, there is a risk of cables being thrown off the drums when the opener starts running and the door initially jumps.

In addition to preventing cable slippage, pusher springs also serve as a safeguard against the door flying off the back end of the horizontal tracks in case of user or operator error. This is especially important for manually operated doors in loading dock bays and storage facilities where excessive force could cause the door to fling open.

It's important to note that pusher springs are different from track bumpers or leaf bumpers. Pusher springs are spring loaded and apply a gentle push against the top section of the door to prevent cable slippage, while leaf bumpers are static and are used to prevent the door from slamming into track bolts at the end of the horizontal tracks.

If you're looking to prevent your garage door cables from jumping off the cable spools, pusher springs are essential. On the other hand, if you want to avoid the door from hitting the track bolts at the end of the horizontal tracks, leaf style bumpers are required. Pusher springs are typically installed at the back of the horizontal tracks and provide the necessary tension to prevent cable slippage.

In conclusion, pusher springs are a vital component in ensuring the smooth operation and safety of your garage door system. If you have any questions or need assistance with pusher springs for your garage door, feel free to contact lajiaoz for more information.

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