Interior door prehang machines

The KVAL Company is short for the owners last name of Kvalstein. They produce door pre-hanging machinery and have since the 1940's. Their mode1990F-3 (6’-8”) is equipped with options for automatic door positioning and is one of their most popular models of interior door pre-hanging systems.

They say the typical cycle time to machine a door and jamb for three hinges the lockset, and attach three hinges is 40 to 55 seconds. This machine is generally used together with their Handler Door Feeder, 700-CAssembly Table, and the 960-3Strike Jamb Router. When doors wider than 3' need to be machined, either the ON2 Door Feeder or ON3 Door Feeder is required.

Their standard 990F-3 is designed to accommodate interior doors, 1-3/8” thick and exterior doors, 1-3/4” thick doors and jambs. Hinge size changes between 3-1/2” x 3-1/2” and 4” x 4” can easily be completed without tools. Vertical adjustment is made with top and bottom turrets that are pre-set to the customer’s specifications. The horizontal size adjustment is made with two 1/4" long pins that are either removed or installed as needed. They say 2 or 3 minutes are all that are needed to remove the safety covers, make the hinge size change, and reinstall the safety covers at each head. The ability to switch the hinge size on all (3) hinge routers simultaneously with one switch on the control panel is also an upgrade option. With this option the hinge size change takes less then 5 seconds.