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MAUS TUBE EXPANDER R/30 & R/31 Series
Description
Technical specification
Maus R/30 & R/31 Tube Expander Series
The Maus R/30 and R/31 Series are high-precision, adjustable-depth, 3-roller mechanical tube expanders developed by Maus Italia for thin- to medium-thickness tubesheets in heat exchangers, condensers, and boilers.
These manual expanders ensure consistent sealing quality and sleeve contact through controlled and uniform expansion.
Key Features & Applications
Adjustable Depth
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- R/30 Series: Expands tubes within depths of 9.5–31.8 mm (⅜″–1¼″).
- R/31 Series: Expands tubes with depths of 28.6–50.8 mm (1⅛″–2″)
Tube Compatibility
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- R/30: Suitable for tubes Ø 12.7–38.1 mm (½″–1½″).
- R/31: Designed for Ø 15.9–38.1 mm (⅝″–1½″)
3-Roller Balanced Design
The three hardened rollers apply uniform radial pressure, minimizing tube distortion and ensuring consistent sealing performance.
Robust Construction
Constructed with alloy-steel mandrel, rollers, and cage, these expanders offer durability even in heavy-duty industrial maintenance.
Flexible Use with Torque Tools
Perfectly compatible with Maus torque-controlled pneumatic or electric torque rolling machines, enabling controlled expansion speed and torque.
| Specification | R/30 Series | R/31 Series |
|---|---|---|
| Tube Diameter | 12.7–38.1 mm (½″–1½″) | 15.9–38.1 mm (⅝″–1½″) |
| Expansion Depth | 9.5–31.8 mm (⅜″–1¼″) | 28.6–50.8 mm (1⅛″–2″) |
| Roller Count | 3 hardened rollers | 3 hardened rollers |
| Roller Length | 38.1 mm (1½″) | 57.1 mm (2¼″) |
| Construction | Alloy steel | Alloy steel |
| Operation | Manual + torque-controlled tool | Manual + torque-controlled tool |
Why Choose R/30 & R/31 Series?
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- Precise Depth Control – Adjustable collars allow controlled expansions, essential for repeatable performance.
- Balanced Expansion – 3-roller configuration ensures uniform tube deformation and minimizes leak paths.
- Durable Design – Heat-treated alloy steel resists wear from frequent use on industrial equipment.
- Versatility – Covers common tube sizes and depths for small to medium heat exchangers.
- Seamless Integration – Works with pneumatic or electric torque-driven rolling tools from Maus for consistent and safe tube expansion.
The Maus R/30 and R/31 Series expanders are reliable, precise, and indispensable for tube-sheet maintenance in heat exchangers, boilers, and condensers. Their adjustable-depth and robust construction enable consistent, high-quality expansions with ease. Need datasheets, torque tool pairing advice, in Batam? Just ask!
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