Doncen R&D department examines how specifying geared motors in stainless steel design or specialised finishes can help reduce HACCP risk factors.

The Hazard Analysis and Critical Control Points (HACCP) system is an internationally recognised method for reducing risk factors in the production or processing of food. It works on the principle of on-going improvements, encouraging manufacturers to continuously re-evaluate each of the processes in its production line to identify possible hazards and minimise risk. The primary purpose of the system is to protect people from food-borne illness, though it is also recognised as a ‘best practice’ approach to improve quality and consistency in the final product.

Understanding the importance of the processes surrounding the analysis of risk in the production line helps to explain the evolution of geared motor technology used within the industry. Specifically, it explains why the industry requires that geared motor manufacturers invest in R&D for aseptic solutions – developing specialist coatings and even stainless steel variants of their latest products.

Aseptic drives are designed to deliver all the performance benefits of a standard geared motor, while also protecting the drive from harsh washdown cycles and preventing the build-up of microorganisms. Drives are typically painted using acid- and alkali-resistant coatings that can withstand chemicals with a pH range of 2 – 12. These drives will also usually offer high levels of ingress protection and be designed with a smooth exterior to prevent dirt build-up
 

Stainless steel geared motors – as found within the PG series range – meet all the regulations set out by organisations such as the FDA and NSF without the need for specialist coatings. As a base material, stainless steel is inherently resistant to corrosion and chemicals, even if it has been scratched or dented after suffering an impact.

For manufacturers or packaging specialists looking to minimise HACCP risk factors when specifying geared motors, there is no question that it pays to choose a specialist solution. The PG series range is available in three sizes ranging from 80 Nm to 330 Nm in standard, aseptic and stainless steel designs; with power ratings up to 6.3 kW depending on the size selected. A two-stage gearbox design allows ratios of up to 109:1, depending on gear type, and allows a wide range of applications to be covered.

Whether the application would benefit most from a stainless steel design or an aseptic coating depends on the sort of working life it will be exposed to. Our engineers help customers to assess their environments and provide expert guidance on the most appropriate choice with consideration to efficiency, reliability, risk and long-term cost saving.

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