Maus Italia - MA 2501
Automatic tube rolling

MA 2501

CNC single or double-axis work centre with mobile base for rolling, facing, grooving and TIG orbital welding of tube bundles

The MA 2501 is the most innovative and effective solution offered by Maus Italia for the automation of work cycles for the serial assembly of medium to large heat exchangers.

The MA 2501 CNC work centre allows the single TIG orbital welding and the single or double-axis performance of rolling expansions, facing of tube and the grooving of tube sheet holes of medium to large diameter. Completely automated processes at extremely low cost and with a significant reduction in production times.

  • Maximum tube sheet diameter 2500 mm (100")
  • Maximum tube sheet thickness 700 mm (27,5")
  • Tube diameter: from 9,5 to 51 mm (from 3/8" to 2")
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Hi-tech

Revolutionary operation on 3 axes

High speed

600 tubes/hour
1 cycle every 6 seconds

Extreme cost reduction

Maximum productivity

Lasting reliability

The entire structure is extremely robust

Rolling, facing, grooving and TIG orbital welding of tube bundles.

Completely automated processes at extremely low cost and with a significant reduction in production times.

CNC-controlled automatic machining
Automatic rolling expansion

The automated rolling cycle reaches levels of productivity and quality that are incomparable with those attained by traditional systems. Total control over both the torque and the size of the tube allows you to highlight and configure the phases of the process during rolling expansions, thus optimizing work times. A second advantage of this revolutionary technology is the considerable reduction in the tool wear. Complete and detailed reports and storage of data in real time.

Automatic tube end facing

This completely automatic system can be used for removal of excess material as well as welding preparation. The automatic tube end facing system includes compensation for the deformation of the tube sheet, optimizing the process from both a qualitative and a productive point of view.

Automatic grooving (optional)

The completely automatic system can be used for creating grooves inside the tube sheet holes. The automatic cycle, complete with management and control program for the level of wear of the tools, is already programmed and only needs input of the feed speed parameters.

Automatic welding (optional)

This operation is fully automatic so as to ensure complete control of the quality and geometry of the weld puddle. Automated centering and positioning, welding and arc quenching are completely controlled by the CNC. Maus Italia has also supplemented its CNC systems with the AVC system for the automated management of the electrode/work piece distance, ensuring an even more expert performance.

MA 2501 - CNC single - or double-axis work centre with mobile base for rolling, facing, grooving and TIG orbital welding of tube bundles
Innovations and features

Applied technologies

The MA 2501 work centre is the most technologically advanced product on the market for the automation of work cycles in the assembly of tube bundle heat exchangers.

4FD Four Feet Drive system

The power-assisted hydraulic base of the new model MA-2501 provides rigidity and precision. In particular, the 4 positioning and lifting feet help to compensate for horizontal thrusts. The transmission system sent back to each foot, guarantees, during translation, continuity and precision.

Free tubes

The rolling of a tube which is simply inserted into the tube sheet but not locked and therefore free to move longitudinally was one of the first issues to be addressed successfully by the Maus Italia MA series. The MA 2501 can lock and roll a free tube, at the desired protrusion, totally autonomously and automatically. This technology can be used in the orbital welding preparation.

Automatic compensation for depth of expansion

Automatic zero setting system for Z axis, the position reference is the outer edge of the tube sheet for each individual tube, regardless of the deformation of the tube sheet itself.

Mandrel feed digital control

The digital control allows you to check in real time the actual size of the tube expansion. This technology allows you to record the value of each expansion carried out.

Continuous speed variation

The rotation speed of the expander mandrel varies continuously as a function of the torque moment by moment: this results in an optimization of the expansion cycle, a reduction in the wear of the tools and a greater speed of execution.

Parallel roll

RP technology allows elongations and related residual stresses in the tube after rolling to be reduced to a minimum, in order to obtain a homogeneous tube-tube sheet contact along the whole length of the expansion.

Exclusive features

The only machine in this sector which is completely autonomous and automatic.
Rapid positioning, ease of programming and optimisation of the welding cycle reduce production costs.

Reporting of automatic rolling expansions

The continuous and growing demand for documentation suitable for certifying the overall quality of a company is met by complete and detailed data storage. The MA 2501's automatic rolling operation with torque control allows you to highlight and configure all the phases of the process which are recorded and monitored on a digital report file, guaranteeing complete traceability of each operation without the possibility of errors.

Unique FOCS3 centering system

The unique FOCS3 centering system is a self-learning electropneumatic device for automatic tubes centering and correction. This device is controlled by software exclusively designed by Maus Italia.

Detection and display of the distance to the tubesheet using a class 1 laser device ( centring precision to 0,05 mm / 0,002" ). Rapid detection of work piece zero, calculation and storage of the grid location of the holes in the tube sheet. Measurement is performed by a class 1 laser system.

Revolutionary operation on 3 axes

The remarkable uniqueness of the MA 2501 is in its capacity to work simultaneously on 3 axes: horizontal, vertical and transverse.

The hydraulic power-assisted base

The proper alignment of the machine with the tube sheet is fundamental for the quality of the finished piece. Thanks to the hydraulic power-assisted base, which is optional on the MA 2501, the concept of the work piece zero, typical of traditional machine tools, is revolutionized by bringing the machine to align with the work piece.
With the power-assisted hydraulic systems installed on the machine, it is possible, in minutes, to move the machine along the three dimensions and, in tandem with the FOCS3 feeler, perform a correct alignment of the tube sheet zero with the CNC program.

Heat exchangers production and maintenance

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