The SAPSONS “NW” Series Tube Sheet Grooving Tool is a precision internal grooving tool specially designed for creating grooves inside tube sheet holes during the manufacturing and maintenance of heat exchangers, condensers, chillers, and boilers. These grooves help in mechanically locking expanded tubes firmly into the tube sheet, improving joint strength and leak resistance.
SAPSONS uses an automatic eccentric tool-holder mechanism, where the cutter activates automatically once the pilot nose touches the tube sheet face. The cutter then feeds smoothly into the bore to produce accurate grooves with controlled depth and position.
Key Features :
• High precision and fast grooving operation
• Adjustable groove depth and groove location
• Covers a wide range of bore diameters by changing pilots and cutters
• Automatic feed mechanism for consistent groove quality
• Quick-lock collar and stop nut for easy setup
• Different groove configurations available using form cutters
• Suitable for heat exchanger and condenser tube sheet applications
Typical Applications :
• Heat exchanger manufacturing
• Boiler tube sheet grooving
• Condenser tube installation
• Chiller and pressure vessel fabrication
• Tube expansion and tube locking operations
Technical Range (Typical) :
Tool Model Tube Sheet Hole Diameter Max Groove Depth
1SNW2MT 9 – 32 mm 2.0 mm
3SNW3MT 16 – 45 mm 3.5 mm
4SNW4MT 19 – 48 mm 4.5 mm
6SNW5MT 38 – 114 mm 7.6 mm
The SAPSONS NW Series Tube Sheet Grooving Tool is a reliable and user-friendly industrial tool used for precision grooving inside tube sheet bores. Its automatic cutting action, adjustable settings, and wide size range make it ideal for tube installation work in heat exchangers, condensers, and boiler systems. The tool improves tube retention, enhances sealing performance, and increases the durability of tube-to-tube-sheet joints.
