Thomas C. Wilson Tube Tools
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Heat Exchanger Tube Expanders

Rolling expanders for the fabrication and retubing of heat exchangers,
chillers, condensers, evaporators and other industrial applications.

Wilson expanders are desigend for HVAC pressure vessel tube installation or retubing in a wide range of sizes. Our mandrel expanders help you roll tubes in difficult to reach areas while our power-driven linsen expanders work well in short bends, U-turns, copper, brass, aluminum, or thin steel tubing. Wilson Collet Type Hydraulic Baffle Expanders reduce tube wear caused by vibration of baffle plates and support sheets.

Or use our tool guide to help you identify the right Wilson heat exchanger tool.


3 Roll Condenser Expanders — 1/4" to 3/8" OD
Series 41-A, 44-A
Series 41-A and 44-A Expanders are designed for the manufacture, repair and retubing of condensers with a 1/4 or 3/8 inch tube Outer Diameter. The Series 41-A is designed for 1/4 to 1-inch tubesheets, while the Series 44 is designed for 1 to 3 1/2-inch tubesheets.

All series are provided with 1-inch roll lengths.
Three Roll-Parallel Expanding-Single Flare Roll Type
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3 Roll Condenser Expanders — 1/2" to 1 1/2" OD
Series 41-C, 44-C, 47-C

Series 41-C, 44-C, and 47-C Expanders are all designed for the manufacture, repair and retubing of condensers with 1/2 to 1-1/2 inch tube Outer Diameter. The difference is in their reach. The Series 41-C is designed for a 1/2 to 1-1/2 inch tubesheet, the Series 44-C is designed for a 1-1/4 to 6-inch tubesheet, and the Series 47-C is designed for a 1 1/4 to 12-inch tubesheet.

All series are provided with 1 1/2-inch roll lengths.

Three Roll-Parallel Expanding-Single Flare Roll Type
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3 Roll Condenser Expanders — 1/2" to 2 1/2" OD
Series 41-D, 44-D, 47-D
Series 41-D, 44-D, and 47-D Expanders are designed for the manufacture, repair and retubing of condensers with 1/2 to 2-1/2 inch tube Outer Diameter. The difference is in their reach. The Series 41-D Expanders are designed for a 1 1/4 to 2 1/4-inch tubesheet, the Series 44-D are designed for a 2 to 6 3/4-inch tubesheet, and the Series 47-D are designed for a 2 to 12 3/4-inch tubesheet.

All series are provided with 2 1/4-inch roll lengths.
Three Roll-Parallel Expanding-Single Flare Roll Type
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4 and 5 Roll Condenser Expanders — 1/2" to 1 1/2" OD
Series 72-C, 73-C
Series 72-C and 73-C Expanders are designed for the manufacture, repair and retubing of conensers with 1/2 to 1-1/2 inch tube Outer Diameter. The roll models that are designed for 20-23 Gauge also come with a thin Gauge collar. The recess is adjustable by the use of space washers. The thin Gauge collar’s unique design maintains tube end contact throughout expansion. The difference between the 72-C Series and the 73-C Series is in their reach; the 72-C Series has a 1/2 to 1 1/2-inch reach, while the 73-C Series has a 3/4 to 5-1/2 inch reach.

All series are provided with 1- 1/2 inch roll length.
Three Roll-Parallel Expanding-Single Flare Roll Type
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4 and 5 Roll Condenser Expanders — 1/2" to 1 1/2" OD
Series 72-D, 73-D
Series 72-D and 73-D Expanders are also designed for the manufacture, repair and retubing of conensers with 1/2 to 1-1/2 inch tube Outer Diameter. They are also both available in 4 and 5 roll models. The 5 roll models also come with a thin Gauge collar. The Series 72-D Expander has a reach of 1/2 to 2 1/4 inches, while the Series 73-D has a reach of 1 1/2 to 6 1/4 inches. All part numbers are easy to identify and interchange with competitor part numbers.

All series are provided with 2 1/4-inch roll lengths.
Three Roll-Parallel Expanding-Single Flare Roll Type
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Universal Tube Expander — 1/2" to 12 1/2" OD
Series UE-800, UE-1200, UE-1200-A
Wilson Universal Tube Expanders Series UE-800, UE-1200, and UE-1200-A are designed for condenser tubes with a 1/2 to 1 1/2-inch Outer Diameter. The Wilson Universal Tube Expander is compatible with competitor’s products, including Airtoole and Cooper.

Wilson Expanders can be provided in 1 1/2-inch or 2 1/4-inch roll lengths.
Three Roll-Parallel Expanding-Single Flare Roll Type
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Expander Collars — Up to 1" OD
Thrust-Bearing Collars
Wilson Thrust-Bearing Collars are assembly-furnished on all Wilson Expanders up to 1-inch Outer Diameter, except Wilson 72 and 73 Series Expanders, Gauge 20 – 23. Up to 15/16-inch recesses are available on request.

Wilson Deep-Recess Collars are available for the Wilson 72 and 73 Series Expanders and allow rolling on the far end where tubes project up to 3 inches (76.2mm). To order, specify “thin Gauge collar" and assembly number and required dash number -7300 for 1-inch, 7200 for 2-inch, and 7400 for 3-inch.

Wilson Close Collars offer optional collar assembly for rolling tubes too close to shell sides and divider plates to allow for the greater diameter of standard collars to pass. Close collars are available from flush to a 15/16-inch recess for all tube expanders offered.
Expander Collars

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Relieved Rolls — 1/2" to 2 1/2" OD
Relieved Rolls
Wilson Relieved Rolls are designed for rolling tubes with welded ends or expanding tubes at baffle sheets. They adapt to any Wilson 41, 44, 47, 72, 73 or UE Series Expander. They can be installed in minutes. To order a set of Relieved Rolls, simply specify the expander assembly part number and the effective roll length. Three Roll-Parallel Expanding-Single Flare Roll Type
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Long-Reach Expander — 5/8" to 4 1/2" OD
Wilson Long-Reach Expander
The Wilson Long-Reach Expander is designed to expand tubes at points as far back as 12 feet, and even further upon request. This expander’s reach goes all the way to the point through which a tubesheet crosses a baffle sheet. The Wilson Long Reach Expander is designed for tubes with a 5/8 to 4 1/2-inch Outer Diameter and 8 to 22 Gauge. Contact us with details and we can provide a quick turnaround time. Three Roll-Parallel Expanding-Single Flare Roll Type
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Captive Mandrel Expander — 3/8" to 2 1/2" OD
Wilson Captive Mandrel Expander
The Wilson Captive Mandrel Expander enables tubes to be rolled in places where mandrel travel is limited due to restriction in the tube’s Inner Diameter or tube bends near the rolling area. When ordering a Wilson Captive Mandrel Expander, please provide Thomas C. Wilson with the details of your specific application including: tube Outer Diameter, Gauge, tubesheet thickness, and maximum mandrel travel. Three Roll-Parallel Expanding-Single Flare Roll Type
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Linsen Expander — 3/8" to 1" OD
Wilson Linsen Expanders
Wilson Linsen Expanders are power-driven tools designed for making tube connections without fittings. This expander enlarges the end of a tube leaving a .015-inch clearance for slip that allows for another tube to be inserted and soldered. This type of expander is excellent for short bends, U-turns, copper, brass, aluminum, or thin steel tubing. Three Roll-Parallel Expanding-Single Flare Roll Type
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Pipe Sizing Expanders — 0.435" to 12" OD
Wilson Pipe Sizing Expanders
Wilson Pipe Sizing Expanders bring pipe or tube ends to a precise diameter to prepare them for soldering or brazing into sil-braz and other similar pipe fittings. A close manufacturing tolerance ensures that rolls expand in a parallel manner. When ordering this Wilson tool, please specify tube Outer Diameter, tube Inner Diameter, tube metal, and the approximate depth of rolling. Three Roll-Parallel Expanding-Single Flare Roll Type
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For more information on Wilson's Tube Expander Equipment and Tools, to receive a quote, or ask a question, please contact us. We look forward to hearing from you.

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