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MAUS TUBE EXPANDER 5R80 & 5R81 SERIES
Description
Technical specification
Maus 5R/80 & 5R/81 Tube Expander Series
The Maus 5R/80 and 5R/81 Series are advanced, five-roller tube expanders from Maus Italia, engineered for high-precision mechanical expansion of thin-walled tubes into thick tubesheets.
These expanders are built to ensure consistent sealing performance and depth control, ideal for maintenance of heat exchangers, boilers, and industrial condensers
Key Features & Applications
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- Five-Roller Precision Design – Offers superior stability and even radial compression, minimizing tube deformation—especially important for titanium or thin-wall materials .
- Wide Tube Diameter Compatibility – Supports tube ODs from 15.9 to 38.1 mm (5/8″–1½″), accommodating common industrial tubing
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Extensive Expansion Depth –
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5R/80: Adjustable from 9.5 mm to 184.2 mm (3/8″–7¼″)
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5R/81: Adjustable from 28.6 mm to 203.2 mm (1⅛″–8″)
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- Durable, Adjustable Construction – Built with alloy-steel mandrels, cages, and rollers; features depth collars for precise tube seating
- Torque-Control Tool Compatibility – Integrates with pneumatic or electric torque-controlled drive machines for consistent expansion torque and sealing quality
| Specification | 5R/80 Series | 5R/81 Series |
|---|---|---|
| Tube Diameter | 15.9–38.1 mm (⅝″–1½″) | 15.9–38.1 mm (⅝″–1½″) |
| Expansion Depth | 9.5–184.2 mm (⅜″–7¼″) | 28.6–203.2 mm (1⅛″–8″) |
| Roller Count | 5 hardened rollers | 5 hardened rollers |
| Roller Length | 38.1 mm (1½″) | 57.1 mm (2¼″) |
| Construction | Alloy-steel mandrel, cage, rollers | Alloy-steel mandrel, cage, rollers |
| Operation | Manual + torque-controlled driver | Manual + torque-controlled driver |
Why Choose 5R/80 & 5R/81 Series?
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- Deep Sealing Capacity – Ideal for mechanical expansion in tubesheets up to 203 mm thick.
- Even Tube Compression – Five rollers ensure balanced expansion, reducing risk of leaks and distortion.
- Durable & Precise – Robust alloy-steel build ensures longevity and reliable sealing results.
- Adjustable & Versatile – Collar-adjusted depth offers repeatable settings across jobs.
- System Integration – Compatible with torque-drive systems for safe and controlled expansion
The Maus 5R/80 and 5R/81 Series are essential tools for heavy-duty tube expansion into thick tubesheets. Their five‑roller design, adjustable depth, and compatibility with torque-controlled mechanisms deliver professional-grade sealing—crucial for industrial maintenance operations. Need PDF datasheets, torque tool options, or Our contacts? Just ask—Us ready to help!
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