SAPSONS Tube Expander – 800 Series is a widely used mechanical tool designed for expanding tubes into tube sheets, mainly in heat exchangers, condensers, and similar equipment.
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.
Description :
The 800 Series Tube Expander is a mechanical rolling-type tube expander that works by cold-forming the tube material outward. This creates a tight, leak-proof joint between the tube and the tube sheet, ensuring strong mechanical bonding without welding.
Key Features :
• Mechanical expansion principle: Uses rollers and a mandrel to expand tube walls outward.
• Leak-proof joints: Ensures secure sealing in tube sheets.
• Cold working process: Improves joint strength without heat input.
• Simple and reliable design: Suitable for manual, pneumatic, or powered drives (typical for such expanders).
Typical Technical Range (Industry Standard for 800 Series) :
• Tube Outer Diameter Range: 1/2″ to 1-1/2″ (12.7–38.1 mm)
• Tube Sheet Thickness:
a. 1/2″ to 1-1/2″ (with 1-1/2″ rollers)
b. 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
Applications :
The 800 Series Tube Expander is widely used in industries such as:
• Heat exchangers
• Surface condensers
• Power plant boilers and pressure vessels
• Oil coolers
• Chillers and HVAC systems
• Feedwater heaters
• Chemical and refinery equipment
• Industrial tube installation and maintenance
The 800 Series is considered one of the most commonly used general-purpose tube expanders worldwide, especially for medium tube sizes.
Advantages :
• High reliability and durability
• Uniform tube expansion
• Compatible with various tube materials
• Easy maintenance and interchangeable components
The SAPSONS 800 Series Tube Expander is a standard, versatile tool for tube expansion jobs, offering dependable performance for medium-sized tubes in industrial applications. Its rolling mechanism ensures strong, leak-proof joints, making it essential in heat exchanger and boiler fabrication/maintenance.
