mayr power transmission Roba-capping head components

Due to the constant, impact-free slip torque, hysteresis capping heads are claimed to be better suited for sealing plastic bottles and non-returnable glass bottles than permanent magnet heads. The Roba-capping head components by mayr power transmission are based on the Roba-contitorque hysteresis clutch.

A characteristic feature of the permanent magnet heads traditionally still widely used today is the torque pulsation in slipping operation. During slipping, this torque pulsation can cause alternating loads that are destructive to the attached components. This can result in cost-intensive inspections, increased maintenance requirements and downtimes. For multi-way glass bottles, the use of these heads is still considered appropriate.

When sealing plastic bottles, the Roba-capping head hysteresis capping heads with their constant, impact-free slip torque provide advantages. 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% in constant ambient conditions. When comparing the bottle opening values, capping heads with hysteresis clutches are said to do better than capping heads with permanent magnet clutches. The opening torque scattering is lower and the values are 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 of stainless steel can be maintained easily by the user, from re-greasing the guides to replacing the bearing. No cost-intensive services are necessary. Existing systems can also be retrofitted without any problems.