Madlock Tech Page
Madco Machine Inc is a precision machine shop based in Red Deer Alberta, which prides itself on quality & innovation for regional industries as well as design of products on an international level. Madco Machine Inc. strives to meet industry needs and recognized a lack of truly theft proof trailer security, which gave birth to Madlock.
Madlock is "North American Made" in our own Madco Machine Inc manufacturing facility. This gives us the ability to maintain the highest quality standards, making Madlock your best choice!
Madlock Trailer Coupler Lock is quick and simple to use. Madlock stays as one complete unit so there is no fumbling with multiple parts. With the lock unlocked slide the frame onto your stamped steel trailer coupler, raise the black pin into the couplers ball socket then push the key and key cylinder into the lock and turn the key to lock.