Electric Tube Expansion System

Electronic Torque produced by SAPSONS Electric Tube Expansion Drive Unit is governed by a separate Electronic Control Panel which is adjusted by a simple Digital Display. When the Electrically Driven Motors reaches the desired Torque, the Control Unit Mechanism automatically shuts off the Power and on pressing the Reverse Button the Tube Expander retracts out from the Tube .The fully Automatic system ensures the Tubes are rolled to maximum tightness without inducing excessive cold worked stress in Tube Metal, injuring Tube ends or distorting Tube Sheet Ligaments.

Key Features :

• Fully automatic torque-controlled operation

• Digital display for precise torque adjustment

• Uniform tube expansion with repeatable accuracy

• Protection against excessive cold working of tube metal

• Prevents tube-end damage and tube sheet ligament distortion

• Automatic shutdown at preset torque value

• Reverse operation for easy tool withdrawal

• Microcontroller-based solid-state electronics for reliability

Advantages :

• Faster tube rolling compared to manual methods

• Reduced operator fatigue

• Improved consistency and leak-proof joints

• Lower maintenance and rejection rates

• Saves manpower and commissioning time

• Suitable for continuous industrial production

Available Models

SAPSONS mentions models such as:

• SM-0

• SM-1

• SM-2

• SM-3

Technical Importance :

The system ensures controlled radial expansion of tubes, creating strong mechanical bonding between the tube and tube sheet without welding. This improves heat transfer efficiency and minimizes leakage during high-pressure or high-temperature operation.