HE (Hygienic Environment) robots deliver distinct advantages for demanding applications such as machine tending, as well as in the food and metal processing industries.

Collaboration with EHEDG(European Hygienic Engineering & Design Group)

Founded in 1989, EHEDG promotes the design of hygienic equipment and facilities, particularly in the agri-food sector. EHEDG-certified equipment is fully cleanable and complies with EHEDG hygienic design guidelines, in line with European standards EN 1672-2 and the Machinery Directive EC 2006/42.

HYGIENIC – HUMID ENVIRONMENTS

HE Industrial Robot Range

Globally, the food industry relies extensively on industrial robots, with HE (Hygienic Environment) robots being the preferred choice for hygienic and humid conditions. Stäubli’s HE robotic arms have established themselves as the clear market leader thanks to their EHEDG-compliant hygienic design, unmatched technical performance, and ability to completely eliminate bacterial contamination risks. This breakthrough has fundamentally transformed automation standards in the food processing sector.

HE robots are equally well suited for demanding applications in harsh environments, including waterjet cutting, high-pressure washing/cleaning, and deburring processes.

Hygienic Design Features

• Hygienic design fully aligned with EHEDG recommendations
• Excellent accessibility for cleaning, decontamination, and inspection
• NSF H1-compliant food-grade lubricants with no compromise on performance

• Complete prevention of microbial ingress due to optimized design and internal pressurization

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Resilience in Extreme Conditions

• Fully encapsulated construction achieving protection ratings up to IP65/IP67
• Integrated cable harness, tubing, and valves for streamlined integration
• All connections safely protected beneath the robot base
• Broad chemical resistance – unrestricted operation in pH range 4.5 to 8.5 (with validated capability from pH 2 to 12)
• Kinematic pressurization system meeting the most stringent tightness requirements

• Durable surface treatments/coatings combined with stainless steel joints for long-term reliability

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Main Applications

Food Industry In the food sector, our robots significantly enhance productivity and operational efficiency while minimizing contamination risks and ensuring compliance with the highest hygiene standards.

Washing and Cleaning Processes Our waterproof robots are designed to manipulate cleaning tools and workpieces. They offer excellent resistance to continuous exposure to water, high-pressure washing, and a wide range of aggressive chemical cleaning agents.