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Mayr is offering ROBA hysteresis capping heads for the beverage, pharmaceutical, chemical and cosmetics industries.

Due to the constant, impact-free slip torque, hysteresis capping heads are much better suited for sealing plastic and non-returnable glass bottles than permanent magnet or friction heads – according to the company.

The ROBA-capping head is based on the patented ROBA-contitorque hysteresis clutch, which has been used in various applications for more than 10 years to provide torque in a contactless and wear-free manner.

A characteristic feature of the permanent magnet capping heads is the torque pulsation during slipping.

This torque pulsation causes alternating loads, which are destructive to the attached mechanical components.

The results are frequent, cost-intensive inspections that lead to higher maintenance and increased downtime.

When sealing plastic bottles, the advantages of the smooth, impact-free operation are dramatic.

The closing torque has a repetitive accuracy of +/-2 per cent at constant ambient temperature and speed, and optimal adjustment is easily set and read from a permanent scale.

The consistency of opening torque is far higher than with traditional heads.

Bearing loads are very low due to the constant dynamic load.

Also, wear on the sealing cone is minimised significantly, increasing service lifetimes.

The stainless-steel ROBA-capping head components are designed to be low wear and easily maintained by the end user.

From greasing guides to replacing bearings, the need for costly, intensive services to be carried out by the manufacturer or third-party maintenance company is negated.

Most existing systems can easily be retrofitted without any problems, as adaptors are available where necessary.

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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