Lubrication device for cylinders, pistons and hat cuffs

Workstations for automated greasing of cylinder inner and piston outer diameters – tested and process-reliable.

The dispensing system combines two separate workstations within a single machine, each dedicated to a different lubrication process. On the first half of the machine, cylinders and pistons are precisely lubricated and subsequently assembled. The inner diameter of the cylinder is lubricated first, while a defined amount of grease is applied to the outer diameter of the piston before both components are joined. The opposite half of the machine features a separate workstation for the targeted lubrication of sealing cuffs.

The lubrication serves several purposes: The grease forms a reservoir in the recesses of the seal, reduces friction and wear on the running surface and seal, and thereby helps extend component service life. At the same time, the lubricant acts as an assembly aid, reducing breakaway force and static friction torque during subsequent assembly and operation.

Particular attention is paid to process reliability. Before the automatic lubrication cycle begins, the correct positioning of the respective components is checked. Their correct orientation is monitored by inductive sensors. In addition, photoelectric sensors verify the presence of the required O-rings.

The lubrication process is only enabled once all checks have been successfully completed. The red status light switches off and the green light indicates that the system is ready. The lubrication cycle then starts automatically.

By combining precise dosing, automated process control and integrated component and presence monitoring, the system ensures consistent lubricant application. It enables reliable lubrication of pistons, cylinders and sealing cuffs at two separate workstations while ensuring dependable in-process quality control.