Koellmann Gear Corporation



Koellmann Gear Corporation

8 Industrial Park 

Waldwick, NJ 07463

P 201.447.0200

F 201.447.6595

e mail:



Our facility in Waldwick, New Jersey

Koellmann Gear  manufactures a complete line of single screw extruder reducers for applications up to 1600 HP at 80 RPM 











Typical extruder reducer

Available in many sizes and features, for applications up to 500,000 inch pounds. 


A view of one of our inline helical concentric speed reducers 

Custom design and manufacturing capability gear reducers. 



One of our many specialty drives