Hygienic design

Rotary shaft seals are critical in the food industry to prevent the ingress of dirt, dust and other contaminants into machinery and equipment.

Here is some specific information about rotary shaft seals in relation to the food industry:

1. Materials: In the food industry, rotary shaft seals are often made from food-safe materials such as FDA-compliant elastomers like HNBR (hydrogenated nitrile rubber) or FKM (fluororubber). These materials are often resistant to the cleaning agents and disinfectants used in food processing facilities while providing a good seal.
2. Hygienic design: Rotary shaft seals for the food industry are designed in accordance with hygiene regulations to facilitate cleaning and minimise the risk of contamination. This can include the use of smooth surfaces, abrasion-resistant materials and special profiles for easy cleaning and inspection.
3. Certifications: Manufacturers of rotary shaft seals for the food industry should have certifications such as EHEDG (European Hygienic Engineering & Design Group) or FDA (Food and Drug Administration). These certifications confirm that the sealing rings comply with strict hygiene and safety standards.
4. Areas of application: Rotary shaft seals are used in various food industry applications, including pumps, mixers, conveyors, filling lines and more. They play an important role in maintaining the integrity of machinery and equipment and ensuring the quality and safety of food production.

When selecting rotary shaft seals for the food industry, it is important to work with a reliable manufacturer that has the necessary expertise and experience in this field.

Special possibilities with VR seals

VR seals are ideal for sealing caveless, “smooth” shafts in food processing machinery. Because no bonding agents are used, they are safer to use than many competitive products. The BOA, DOA, SOA, SAB, and SAC styles are ideal for food processing applications due to their smooth surface.

1. Smooth transition in accordance with the requirements of EHEDG and DIN EN 1672-2.
2. No cavities
3. No use of bonding agents
4. Various elastomers with different approvals are available.

Special characteristics of VR seals

VR seals

• pressure resistant
• increases service life
• energy efficient
• friction optimized
• can reduce the heat impact on the processed food.

VR seals are used in these machine types

• bakery machines
• machines for grain processing
• poultry equipment
• slaughtery machines
• machines for meat processing
• dairy equipment
• coffee machines
• mixing machines
• and many more