For lead-lined doors to x-ray rooms and other exceptionally heavy doors
Made of double weight steel capable of carrying doors weighing up to 800 lbs. (363 Kg)
Concealed bearings are well lubricated insuring smooth, long lasting operation
Rolled knuckles are welded and machined
Typically made not swaged, no holes (application A) for full surface applications, or for full mortise (applications C) application; All other configurations are made to order
