TUBE EXPANDERS Models / Types Heat exchanger expanders: Class 900C / 900 L  / 1300C / 1300L / 800C / 800L / 1200C  1200L / 1400C / 1400L / Others on request Boiler expanders: KSB / B15 Sizes Diameter: from 3.7 mm to 100 mm (max.) Swaging length: from 8 to 500 mm Materials Made from very high strength steel, and consisting of: set of rollers, swager for heat exchanger tubes, swager and flarer for boiler tubes, mandrel, housing and thrust ball bearing Principle A leaktight mechanical joint is made between tubes and tube sheets by rolling the tube whilst actuating the mandrel of the tube expander Special Features / Benefits Quick, reliable and economic to operate / Easy to install Applications Shell-and-tube exchangers (boilers, condensers, preheaters, evaporators, etc.) Vehicle exhausts, gear boxes, Etc. Accessories Pneumatic or electric tube rolling machines