The technology of recovery of separator screw consists in restoration of geometrical parameters, surface layer and strength, which allows to reuse it instead of buying a new one.

The basic process of auger recovery includes the following steps:

Cleaning: before starting the auger refurbishment work, the auger must be thoroughly cleaned of product residues, plaque and dirt. This can be done by brushing, sandblasting or other methods.
Defect inspection: After cleaning the auger, it must be inspected for defects such as cracks, breaks and other damage. This can be done by visual inspection, defectoscopy, ultrasonic testing or other methods.
Dressing: this stage involves the levelling of the auger surface and its geometry. The levelling can be carried out using metal working machines such as lathe or milling machines.
Cladding: a cladding method can be used to restore the surface layer of the auger. This allows the surface of the screw to be restored and its diameter and geometry to be restored.
Machining: after surfacing, the surface of the screw must be machined to achieve the required smoothness and strength. Machining can be accomplished by grinding machines and other methods.
Coating: To increase the strength and wear resistance of the auger, a special coating can be applied to the surface of the auger. This can be done using plasma spraying, electroplating or other methods.
Testing: Once the screw has been refurbished, it should be tested for strength, tightness and compliance with standards. Testing can be carried out using specialised test benches as well as separator tests.
In general, auger remanufacturing technology can reduce the cost of replacing and purchasing new equipment, as well as improve equipment efficiency by improving the quality of the auger. In addition, auger remanufacturing helps to reduce the time spent on equipment replacement and production shutdown, which in turn reduces operating costs and increases productivity.

Successful auger remanufacturing requires selecting the correct remanufacturing method depending on the material of the auger and the nature of the damage. Rebuilding an auger is a process that requires professional knowledge and expertise in metalworking and welding techniques.

It is important to note that a reconditioned auger may not have the same characteristics as a new auger. However, a properly remanufactured auger can retain its performance for a long period of time, thus significantly increasing its operational life.