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Washdown and food-grade servo motors are designed for environments where regular cleaning, moisture exposure, and strict hygiene requirements are part of daily operation.
These motors combine sealed protection against water ingress with construction features that support sanitation and contamination control in food and beverage, dairy, pharmaceutical, and similar industries.
Typical protection levels include IP67 up to IP69K ratings, with many models using stainless steel housings, hardware, and food-safe materials in critical areas. Food-grade versions add compliant lubricants and materials suitable for incidental food contact, meeting applicable regulatory standards.
Understanding the difference between washdown resistance and full food-grade suitability helps engineers specify the right motor for each application.
What Is a Washdown Servo Motor?
A washdown servo motor is built to tolerate repeated exposure to water, cleaning chemicals, and high-pressure spray systems.
Common characteristics include:
IP67, IP68, or IP69K protection ratings
Sealed connectors and cable glands
Corrosion-resistant coatings or stainless housings
Protective shaft seals
Surface finishes designed to resist chemical attack
Washdown design focuses on environmental durability.
What Makes a Servo Motor Food-Grade?
Food-grade servo motors are engineered to support hygiene and contamination control in regulated environments.
Design elements may include:
Stainless steel housings and shafts
Smooth, crevice-free surfaces
Sloped geometries that prevent pooling
Food-safe lubricants where applicable
Materials suitable for incidental contact zones
Food-grade design focuses on sanitation and cleanability.
Washdown vs. Food-Grade
Criteria
Washdown
Food-Grade
Primary Objective
Resist water and cleaning chemicals
Support hygienic processing
IP Rating
IP67–IP69K
Often IP69K
Surface Geometry
Sealed enclosure
Smooth and cleanable
Material Focus
Coated or stainless construction
Stainless steel and compliant materials
Application Zone
Wet or high-pressure areas
Direct or indirect food zones
Many applications require both washdown resistance and food-grade construction.
Featuring excellent speed and positioning accuracy, these servo motors provide reliable and efficient operation even in demanding motion control environments.
Offers all torque, speed, and precision of the standard AKM series along with protective 2-K coating, IP67-rated seals, stainless steel hardware and food-grade greases.
STF Washdown Motor - Food Grade Series
These permanent magnet DC (PMDC) motors are SCR-rated and adhere to NEMA standards. They are available 90 or 180 VDC, from 1/4 to 2 HP.
The W Series delivers high torque and power density in a stainless steel servomotor designed for food-processing environments and high-pressure washdown.
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