Boiler tube expanders

Powermaster Industrial Supplies LTD

Tel: (613) 764-0572

AB Series Tube Expanders

AB Series Tube Expanders

AB Series - Flaring Expander

The AB Series boiler tube expanders are a high-production tool used in the production of boilers where continuous use is needed. Here are some key features:

  • Straight Rolling Design: The AB Series is a straight rolling expander, making it efficient for expanding tubes.
  • Thrust Bearing: It is fitted with a thrust bearing, which reduces frictional heat build-up during operation.
  • Tube Compatibility: The AB Series boiler tube expanders work with tubes ranging from 7/8″ to 4.1/2″ OD.
  • Tube Sheet Thickness: It can handle tube sheets with thicknesses up to 2.5/8″.

This tool, the AB Series Tube Expanders is essential for maintaining and assembling boilers efficiently.

Consult the PDF below for specifications:


Other Uses for the AB Series Tube Expanders

The AB series can also be used for the final roll when manually beading tubes. This is a requirement where the hammer beading may upset the sealed tube. A final roll resets the seal to a perfectly formed joint. Also, these expanders can be used on leaking boiler tubes that are weeping from the joint.

Whereas, the AB series is very similar to the A Series See Link Below. Therefore the AB series tube expanders will not build up the inherent heat from friction like the A Series.

A Series Tube Expanders

Boiler Efficiency - Cleaning Fire Tube Boilers

Commercial and industrial boilers offer numerous advantages for businesses. They are built to be more durable, requiring less maintenance and lasting longer. They have been proven to be more energy-efficient and reliable compared to residential boilers. These boilers are also customizable to cater to the unique requirements of a business, capable of providing substantial hot water or steam output, which makes them perfect for businesses requiring consistent power. Moreover, commercial boilers can aid businesses in lowering their carbon footprint, thereby enhancing their environmental impact.

1/8 of an inch of soot inside 2 ½ inch tubes can cause up to 47% heat loss, increasing fuel consumption by 8.5%. 


Saves Fuel Consumption 

Saves Substantial $$$ on Energy Costs 

Reduces Fires, Explosions & Blowbacks 

Reduces Odors and Noxious Fumes 

Reduces Mid-Winter Heat Disruptions 

Controls/Reduces Equipment Maintenance Costs 

Maintains Boiler Room Cleanliness 

Minimizes Air Pollution 


  1. oxides of nitrogen, especially as atmospheric pollutants: “targets to reduce NOx”
  2. “NOx emissions” 

    Follow the link below to take you to all our boiler tube cleaning products available

Electric Tube Rolling Motors


The PTR-03 is the ideal electric rolling drive motor to power all boiler tube expanders. Likewise, we can also supply pneumatic rolling motors.

Available in either 120 or 240-volt, 50/60 Hz.

Product Quality

We work to high tolerances for all machining of expanders and associated equipment. This allows accurate expansion to achieve perfect sealed joints in tube sheets. Using the best tool steel and cryogenic processes for hardening and conditioning. Giving our tooling the optimum performance in the harshest surroundings.
We assemble each expander while checking the quality of the manufacture. Every individual tool is laser-marked with our name, Powermaster Canada. Also, we mark with the tube OD, wall thickness and expansion range. Expanders are then oiled bagged and boxed for shipping. Therefore, with our quality control and machining excellence, we supply a quality tool.

Beaded Rolled Tube Ends

A series expander used to re-roll joints

Leaking Tubes in Boilers

Leaking tubes in fire tube boilers can lead to inefficiencies and potential hazards. To address this issue, professionals can rely on the AB Series Boiler Tube Expander. This tool is specifically designed to effectively seal leaking tubes, ensuring optimal performance and safety in fire tube boilers.