Preventive Maintenance

Play safe!

Wear and tear are natural phenomena for machine parts which are used on a daily basis. You can save time and money with regular maintenance since upcoming repairs are detected in good time, breakdowns and damages are avoided. Therefore, prevent and be safe with our service packages!

Regular maintenance ensures a long machine life and reduces unnecessary downtimes. In order to prevent machine downtimes we offer you various individually adaptable maintenance packages. This will increase the availability of your extruder and in the long run save you money and trouble.

We advise you to have the heart of the extruder - the processing unit - annually checked for wear. Having a maintenance agreement is an ideal solution. Not only will you profit of a very well maintained line, but you will also benefit of various advantages and discounts. Upon request, we will gladly prepare a maintenance offer which is tailored to your needs.

Overview of some key data:


Extract from our service catalogue:

Measurement

Especially the heart of the extruder, the processing unit, should regularly be checked by measuring the wear level of the screws and barrels.

Measurement includes:

  • wear measurement of screws
  • wear measurement of barrels
  • measurement log (regular execution includes a yearly comparison) including quotation

CheckUp BASIC

Regular maintenance* ensures a long machine life and reduces unnecessary downtimes. In the focus of CheckUp BASIC the processing unit of the extruder is thoroughly examined - the screws and barrels are measured.

Predisposition: The processing unit must be freely accessible. The screws must be extracted. Screws and barrels are cleaned and at room temperature. Dosing units are clean and freely accessible.

*We recommend the first maintenance after 6-8 months after commissioning, after that annually.

CheckUp BASIC includes:

  • visual inspection of the extruder and the complete line
  • wear measurement of barrels
  • wear measurement of screws
  • inspection of safety shutdown
  • measurement log
  • quotation on parts to be replaced
  • invoicing according to expenses

CheckUp ADVANCED

Regular maintenance* ensures a long machine life and reduces unnecessary downtimes. In this scope the whole Leistritz extrusion line is examined.

Predisposition: The processing unit must be freely accessible. The screws must be extracted. Screws and barrels are cleaned and at room temperature. Dosing units are clean and freely accessible.

*We recommend the first maintenance after 6-8 months after commissioning, after that annually.

CheckUp ADVANCED includes:

  • visual inspection of the complete Leistritz extrusion line
  • wear measurement of screws and barrels
  • inspection of safety shutdown
  • gear-oil analysis
  • inspection of cooling/heating system
  • consultancy in the field of process engineering
  • documentation including quotation on parts to be replaced

Barrel rinsing

The extruder's cooling circuit is extremely important for process reliability. In order to protect this against deposits and calcification, a water and additive mixture is used. However, there will be a build-up of limescale and dirt deposits on the walls of the pipes and barrels after a certain amount of time. This results in reduction of the pipe cross section and thus in a drastic reduction of the flow rate. The cooling capacity decreases massively.

In order to counteract this, the cooling circuit should be rinsed regularly. With the Bio-Chem procedure, Leistritz offers environmentally friendly and efficient cleaning of the barrels on site. The deposits are removed with the help of a compressed air membrane pump and aspecially developed cleaning process. The coolant can flow freely again and thus provide the maximum cooling capacity.

Your contacts

 
Simone Nitsche Service sales Leistritz Extrusionstechnik GmbH
Christian Keim Technical service Leistritz Extrusionstechnik GmbH