Door Closers Door closers are a health and safety requirement of the EU Construction Products Directive for security, privacy and most importantly as a precaution against the spread of fire and smoke. Rack and pinion and cam action are just some of the types of door closers available. With the development of new products Adams Rite is using their experience and innovation to produce quality products for existing and new markets. In this section you will find products that meet the needs of almost any security application or standard in Europe. Transom Door ClosersDesigned to provide a controlled closing of single or double action aluminium doors. Floor SpringsDesigned to provide a controlled closing of single or double action timber, steel or aluminium doors. Surface Mounted ClosersAdams Rite's range of surface mounted rack and pinion door closers come with adjustable CEN power ratings and various accessories. Concealed ClosersThe DC840 and DC860 is a concealed adjustable spring strength cam action door closer which has a reduced opening force to aid compliance with Approved Doc M.