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Mayr Transmissions has launched Roba-capping head components designed for sealing plastic bottles and non-returnable glass bottles.

Due to the constant, impact-free slip torque, hysteresis capping heads are better suited for this application than permanent magnet heads.

The Roba-capping head components are based on the Roba-contitorque hysteresis clutch.

A characteristic feature of the permanent magnet heads traditionally used today is the torque pulsation in slipping operation.

During slipping, this torque pulsation causes alternating loads that are destructive to the attached components.

The results are cost-intensive inspections, increased maintenance requirements and downtime.

For multi-way glass bottles, the use of these hammering heads is still considered appropriate.

When sealing plastic bottles, the Roba-capping head hysteresis capping heads with constant, impact-free slip torque provide several advantages, according to Mayr Transmissions.

The limit torque can be adjusted linearly quickly and easily.

The set value can be read off directly.

In this way, the closing torque, which is transmitted contactlessly and wear-free, can be optimally adjusted.

Roba-capping head hysteresis capping heads have a torque repetitive accuracy of +/-2 per cent in constant ambient conditions.

When comparing the bottle opening values, capping heads with hysteresis clutches do better than capping heads with permanent magnet clutches.

The opening torque scattering is lower and the values are far more constant.

Due to the constant, dynamic torque the bearing load is very low.

Furthermore, the wear on the sealing cone is minimised and the service lifetime can be increased.

Modular-design Roba-capping head components made from stainless steel can be maintained easily by the user, who is able to carry out all necessary tasks themselves, from re-greasing the guides to replacing the bearing.

No cost-intensive services to be carried out by the manufacturer are necessary.

Due to the technical advantages, more new sealing systems are being equipped with hysteresis capping heads.

Existing systems can also be retrofitted without any problems.

The majority of permanent magnet heads can be replaced by hysteresis heads, as adaptors allow the necessary adjustments.

Mayr Transmissions

Mayr are the first choice for torque limiters, clutches, electromagnetic safety brakes and precision shaft couplings.

Mayr combine more than 110 years of innovation, manufacturing technology and quality control with world-class levels of customer service to ensure we maintain our market leading position.

Torque limiters and friction clutches

  • Backlash free ball indent, magnetic and friction torque limiters for the protection of rotating machinery and other drive systems.
  • Torque range from 0.1 to 100,000Nm.

Electromagnetic safety brakes

  • Single and multi-circuit, holding and dynamic fail-safe brakes with EN81, IP67 and BGV C 1 options.
  • Torque range from 1.1 to 50,000Nm.

Precision shaft couplings

  • Torsionally rigid, backlash-free, flexible shaft couplings in a range of designs including metal disk, carbon spacer, bellows and elastomeric spider.
  • Torque range up to 110,000Nm.

Mayr’s products can be found in many of today’s most demanding of applications including:

  • Stage and theatre
  • Winching and hoisting
  • Water treatment
  • Wind energy
  • Bottling and packaging equipment
  • Machine tools
  • Food processing.

With a huge range of standard products and the ability to design and make application specific designs, you can be sure Mayr will have the perfect product for your equipment. Please contact us to discuss your requirements.

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