9800 series overhead transom door closers provide a solution for applications where door control must be provided without disturbing the appearance of the door. The closer fits into the transom above the door, most of the preparatory work is undertaken prior to installation, leaving minimal on site fitting. 
Fully concealed door closers are designed to provide positive centering and door control on manually operated single or double action internal and external doors in schools, hospitals, clubs, factories, offices and commercial buildings. 
Features and Specifications
Suitable for both single and double action doors
Adjustable closing and latching speeds
All models feature easy to install side load design
Fully adjustable, vertically within opening and central parking positions
Product Details 
Back check Built in back check from approximately 80° (order version 9852BCN 9853BCN or 9854BCN)
Closing Angles 130° to 15° 
Compact body size fits into 44.5mm x 100mm header section 
Doors Suitable for fire (non hold open versions 9852BCN 9853BCN or 9854BCN), metal, timber and glass doors  
Door thickness minimum 38mm 
Door weight maximum 115kg 
Hold-open mechanical hold-open at 90° (order version 9852H90 9853H90 or 9854H90), not suitable for fire rated doors
Hold-open mechanical hold-open at 105° (order version 9852H105 9853H105 9854H105), not suitable for fire rated doors 
Latching Angles 15° to 0° 
Furniture body: high grade cast iron 
Internal body: heat treated high alloy steel and ball bearings for optimum efficiency 
Opening angle maximum: 130° 
Pivot point: 70mm 
Hydraulics: stable hydraulic oil for a wide range of climatic conditions enabling constant operation 
Valve: built in pressure release valve protects closer from rough use