Description
Tube Expander - 800 SERIES: The 800 Series Tube Expander is a mechanical tube expanding tool designed to expand and secure tubes into tube sheets. It ensures tight, leak-proof joints by cold working the tube walls outward using rolling action between the tube and the sheet.
The 800 Series Tube Expander is a mechanical tool used to expand and fix tubes into tube sheets in equipment such as condensers, boilers, and heat exchangers. It works by rotating a mandrel and rollers inside the tube, which forces the tube wall outward, so it tightly fits against the tube sheet hole, creating a secure, leak-proof joint.
This series is one of the most commonly used tube expanders worldwide for medium-size tubes and is designed for precision, durability, and consistent tube expansion in industrial maintenance and fabrication operations.
The tool typically uses a 3-roller mechanism (or optional 5-roller version) and is driven by manual, pneumatic, or electric tube rolling machines. It ensures uniform expansion without damaging the tube.
Key Specifications
• Tube Outer Diameter Range: 1/2″ to 1-1/2″ (12.7–38.1 mm)
• Tube Sheet Thickness:
o 1/2″ to 1-1/2″ (with 1-1/2″ rollers)
o 1-1/4″ to 2-1/4″ (with 2-1/4″ rollers)
• Roller Options: 1-1/2″ or 2-1/4″ length
• Design: 3-Roll adjustable depth expander
• Drive: Mandrel with square drive for tube rolling motor
• Collar Design: Reversible thrust collar for flush or recessed tube rolling
Main Features
• High-strength alloy steel construction
• Adjustable depth control
• Uniform and accurate tube expansion
• Durable for heavy industrial use
• Compatible with many tubes rolling machines
• Available in 3-roll and 5-roll configurations
Applications
The 800 Series Tube Expander is widely used in industries such as:
• Heat exchangers
• Surface condensers
• Power plant boilers
• Oil coolers
• Chillers and HVAC systems
• Feedwater heaters
• Chemical and refinery equipment
Summary :
The 800 Series Tube Expander is a standard industrial tool used to expand tubes securely into tube sheets in heat-transfer equipment. It supports tube sizes from 1/2″ to 1-1/2″ OD, offers adjustable roller lengths, and ensures strong, leak-free joints. Due to its precision, versatility, and durability, it is one of the most widely used expanders in maintenance and manufacturing of heat exchangers and condensers.
