Apart from the obvious parameters such as dimensions, materials and shape, the quality of a separator screw may depend on several hidden parameters that may be important in its selection and operation. Some of these hidden indicators may include:

Strength and wear resistance. These are indicators that may be difficult to determine immediately when looking at an auger, but are important in determining quality. However, strength and wear resistance can affect the longevity and stability of the separator as a whole. The material parameters, type of processing and manufacturing techniques used to produce the auger must be considered to determine these parameters. A separator auger must be able to withstand heavy loads and aggressive media, so durability is a key indicator for long and efficient use.

The durability of an auger depends on several factors, including the material from which it is made, the shape and size of its components, the quality of attachment of coils and other elements, and the operating conditions. A robust auger must be able to withstand repeated loads of material handling and resist various aggressive environments such as dust, moisture, chemicals, etc.

The wear resistance of the auger also plays a role in its durability. The auger must be able to retain its performance characteristics for long periods of time with repeated use. It must be resistant to wear and not be mechanically damaged by contact with the material it processes.

Various technologies, such as galvanising, are used to increase the characteristic. Or separator screws can be made of steel with a high chromium content, which has increased wear resistance and durability.

Tightness and hygiene. These are important indicators, especially for augers used in the food and pharmaceutical industries. The auger must be airtight to prevent external materials and germs from entering the separator, as well as to avoid leaks and maintain proper material flow within the separator. Failure to maintain a tight seal can result in a drop in productivity and product quality.

It must also be easy to clean and not accumulate product residues to ensure high hygiene and production quality. The hygiene of the auger is even more important when the auger is used in the food industry. The auger must be easy to clean and must comply with food safety standards. Easy cleaning and disinfection of the auger reduces the risk of contaminating the product with bacteria and other microorganisms that can cause food poisoning.

To ensure a tight and hygienic seal, augers can be made from materials that are non-porous and have a smooth surface that is easy to clean. For example, augers can be made of stainless steel, which is highly resistant to corrosion and does not react with foodstuffs. Also, to ensure tightness and hygiene, special O-rings or other devices can be used to seal the connections between the auger components.

Operating efficiency. This is an indicator that can be influenced by a number of parameters including coil angle, feather spacing and auger length. Optimal values of these parameters can help to ensure the best possible performance of the auger and the separator as a whole. This characterises the ability of the auger to perform its functions in the most efficient and economical manner.

The primary purpose of the auger is to move material from one point to another. It is important that the auger performs this task without failures, blockages or leaks. The auger must ensure a uniform flow of material and uniform loading during operation. In addition, the efficiency of the auger is related to its performance, speed and quality of operation.

Various technical solutions are used to improve the efficiency of a screw, such as changing the diameter of turns, installing special devices to control the loading and unloading of material, using special materials and coatings, as well as various control and monitoring systems.

One way to improve the efficiency of the auger is to optimise its design. For example, changing the angle of the coils can improve the material handling process. Installing special baffles can ensure uniform material loading over the entire length of the auger. The use of special materials with high wear resistance and strength can increase the life of the auger and reduce its maintenance costs.

Thus, the efficiency of an auger depends largely on its construction and design, as well as the quality of the materials used. Selecting the right auger, installing it according to specifications and regular maintenance can improve its efficiency and extend its service life.

Compatibility with other elements of the separator. This is an important factor in selecting an auger because it must be compatible with other separator components such as the drive and housing. Incompatibility can lead to performance and safety problems.

For example, when selecting an auger for a separator, you must consider its compatibility with the slotted screens that provide the separation. The auger must be able to distribute the material evenly along the length of the slot screens and ensure that they are properly orientated. If the auger is not compatible with a particular slotted screen, it can lead to separator malfunctions or even equipment failure.

In addition, the auger must be compatible with other elements of the separator, such as the material feed system or the impurities and waste removal devices. If the auger is not compatible with other elements, this can lead to misalignment or malfunctions in the entire system, which in turn will affect the quality and efficiency of the raw material processing.

Thus, when selecting an auger for a separator, it is important to consider its compatibility with other pieces of equipment to ensure reliable and efficient operation of the entire system.

Compliance with standards. Conformity to standard is one of the important hidden quality indicators of a separator screw. It relates to how closely the auger meets the requirements of the technical standards and regulations set for this type of equipment that govern the quality and safety of the equipment. Some of these standards may include GOST, ISO, ANSI and others. The important ones are DIN (German Institute for Standardisation) and ISO (International Organisation for Standardisation) standards.