Three rolls, Self feeding adjustable reach tube expander for deep reach expansion. Parallel rolling with long effective double radius rolls. Rolls are self retained in the cage. An excellent expander for use as touch-up expansion as well as a hard rolling and re-rolling a leaky tubes and for new constructions of Water Tube Boilers, Fire Tube Boilers, Economizers, Air Heaters. Expanders with 4, 5 rolls, with longer rolls or longer reach with 2 inch increments are avail- able on request.
Our K70’s right-angle rolling motors are recommended to be used with this expanders. K70 Right Angle Rolling Motor