Encoders in food & beverage processing are at risk from numerous environmental hazards, which can compromise even the most robust models. It is, therefore, crucial that manufacturers operating in these conditions are familiar with encoder sealing and ingress protection codes, as British Encoder Products Company (BEPC) explains here.
In the world of industrial automation, reliable feedback devices are essential to keeping systems running accurately and efficiently. Encoders play a critical role in applications ranging from food and beverage processing to robotics and material handling. But in environments filled with dust, moisture, chemicals, or washdown procedures, even the best encoder can fail if it’s not properly sealed.
That’s why BEPC adheres to the internationally recognised IP (Ingress Protection) Code, specified by IEC standard 60529, to define the level of protection its encoders offer. These ratings indicate how well a device is safeguarded against solids and liquid, and higher numbers mean better protection. For example, a unit rated IP69K offers all the protections of lower-rated units (IP68, IP67, etc.), plus additional shielding from high-pressure, high-temperature spray-downs.
The critical role of encoder sealing
When selecting an encoder, it’s not just about resolution or output type – sealing is a fundamental specification that directly impacts performance, reliability, and maintenance. Dust, water, and chemicals can infiltrate inadequately sealed devices, leading to signal errors, mechanical failure, or shortened lifespan.
Whether your equipment operates in controlled environments or extreme washdown zones, BEPC has the sealing options to match your needs:
IP50 – basic indoor protection
The encoder is protected against some dust ingress that won’t interfere with operation, but it offers no protection against moisture. Suitable for clean indoor environments.
IP64 – light splash resistance
Dust-tight and protected from water splashes from all directions. Ideal for light industrial use.
IP65 – low-pressure jet resistance
Dust-tight with protection from low-pressure water jets. Common in general- purpose industrial applications.
IP66 – high-pressure jet resistance
Offers dust-tight sealing and protection from strong water jets. Recommended for packaging, washdown, and food processing environments
IP67 – immersion-ready
Fully dustproof and resistant to temporary immersion in water (15 cm to 1 m for up to 30 minutes). Ideal for outdoor and marine installations.
IP6GK – ultimate protection
Designed to withstand high-pressure, high-temperature spray downs; perfect for the most rigorous hygienic environments, including pharmaceutical and food production. This is the top-tier sealing offered by BEPC, ideal for harsh conditions.
BEPC’s comprehensive sealing solutions
The A58SBS stainless steel absolute encoder exemplifies BEPC’s commitment to environmental protection. This 58 mm diameter unit features IP69K sealing with stainless steel V4A construction throughout the housing, flange, and shaft. The heavy-duty design specifically targets applications requiring acid and alkaline resistance, making it ideal for chemical processing, food and beverage production, and washdown environments.
The encoder’s maintenance-free magnetic technology eliminates traditional failure points associated with gears and batteries. Operating across temperatures from -20°C to 80°C, it withstands vibration up to 300 m/s² and shock loads of 5000 m/s². The dual IP rating system (IP69K housing, IP67 shaft) provides comprehensive protection while maintaining operational flexibility.
Choosing the right sealing level
To select the correct IP rating for an application, consider:
- Contaminant Exposure: will the encoder face dust, water, or chemicals?
- Environment: is it used indoors, outdoors, or in a cleanroom?
- Cleaning Regimens: will the equipment undergo routine washdowns?
A higher IP rating can significantly reduce maintenance, improve uptime, and protect a business’ investment.
For more information or to download Technical Bulletin TB-106 on sealing options, visit BEPC’s website.
