Washdown Motors from Elwood

Comment. I would like to hear from any of you that have used an Aluminum housed motor in an application formerly using a Stainless Steel Motor, an application requiring pressurized washing with caustic chemicals. Were you satisfied by the performance and reliability?

Servo motor designed as cheaper alternative
By Ahmed ElAmin

· Elwood-Gettys

09/08/2005 - Designed as a lower-cost alternative to all-stainless steel motors, Elwood-Gettys' severe-duty servo motors are built to withstand dust, strong jets of water and immersion.
Stainless steel is usually used in food processing plant equipment for sanitary reasons. Stainless steel is also easier to wash and clean than most other metals.
SD-series motors are designed for use in the beef, poultry, dairy and pharmaceutical industries where cleaning solutions and solvents can range from a pH of 1 to 13.
Gettys' motors use an aluminum housing that is hard-coat annodised and teflon coated to protect against corrosion and provide a non-stick finish.This gives maximum thermal efficiency to ensure the motors get rid of heat quickly.
All other external components are made of 300 series stainless steel. The design, using a single-piece motor and feedback housing, minimises the risk that food particles get entrapped in theequipment.
A non-contact stainless shaft seal provides maintenance-free protection against moisture intrusion around the shaft opening.
The motors are rated at 66 under the Ingress Protection (IP) international standard for hermetically sealed equipment. The ratings denote that the machines are completely protected against dust andstrong jets of water.
Gettys claims the motors exceed the standard and can also 'withstand the effects of immersion". However only motors rated as IP67 under the standard can claim to be protected from immersionbetween 15cm and 1m.
Servo motors are used to control the motion of various equipment, such as conveyors or robots, in plants.
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And in all pressurized and caustic Washdown applications, we recommend an Industrial Encoder Corporation Stainless Steel encoder.

Rockwell High Performance Servo Motor Washdown

New Products
High performance servo motor geared up for washdown
Rockwell Automation

Food, beverage and life sciences manufacturers can now take advantage of a full washdown capable servo motor with the launch of the Allen Bradley MP-Series stainless steel (MPS) motor from Rockwell Automation. Government regulations in industries such as food, beverage and life sciences specify definitions for “safe” materials that can be used in manufacturing applications. The MPS motor meets these requirements with an easily cleanable design which is in accordance with best practices for food safety requirements. As a result, manufacturers can place the motor closer to the application, saving space and taking advantage of servo motors in areas where the technology had previously not been available.Meeting IP66, IP67 and IP69K standards, the MPS motor is designed to provide superior protection against caustic cleaning chemicals and high-pressure washdowns. The motor’s passivated 300-series stainless steel housing can be cleaned with caustic chemicals without concerns about corrosion or motor damage, and the smooth cylindrical housing is designed to withstand 1200 psi washdowns for water and solid ingress protection.The motor is equipped with a shaft slinger, which protects the shaft seal against direct high-pressure spray and prevents abrasives from damaging the seal. Manufacturers also can install the motor exactly where it’s needed without additional costs, because the shaft slinger protects the shaft seal from high-pressure spraying and foreign material, reducing maintenance and the need for mechanical transmissions and expensive protection guards.Traditional washdown applications use mechanical, hydraulic and pneumatic power transmissions while standard servo motors need to be encased in costly housings. The MP-Series stainless steel motor, however, can be applied on the machine exactly where it is needed, eliminating housings and extra parts such as chains, gears, and bearings. The reduction in parts allows machine builders to optimize their machine configuration.The MPS motor is a part of the Kinetix Integrated Motion solution, which combines Allen-Bradley motors, servo drives, controllers and other technologies into a seamless motion control solution. With the introduction of the MPS motors, Kinetix solutions can be applied to a greater range of applications, even those that involve close contact with food and beverage processing. The MPS stainless steel motors are available in three frame sizes (100 mm, 130 mm and 165 mm), and provide peak torque from 11.1 to 67.8 Nm (98-600 lb.-in.). To help simplify installation, the motors feature factory-sealed flying leads, eliminating the need to open the motor to make connections. The sealed flying leads also enhance the motor’s washdown protection capabilities

Motion Control Research recommends that an Industrial Encoder Corporation Washdown Encoder be used in a system requiring feedback. Contact us at motioncontrolresearch@gmail.com for details.

Washdown Encoders

The Industrial Encoder Corporation Washdown Encoder is the preferred Optical Encoder to use in a system as feedback for a Washdown Motor.

INDUSTRIAL ENCODER CORPORATION

Member of the GESgroup of Companies
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Washdown and Stainless Steel Optical Encoders

November 29, 2007

Industrial Encoder Corporation (IEC) announces that in response to increasing demand, they have expanded the selection of Optical Encoder products that are widely used in Washdown applications, requiring regular cleaning with high pressure liquids and caustic chemicals.

Typical applications of IEC’s Washdown and Stainless Steel encoders are

Food Processing (meat, poultry, and dairy products, slicing and filling)
Packaging, Filling, and Inspection (including soft drinks and beer)
Material Handling and Conveyor Equipment, and
Pharmaceutical, Health and Beauty Products Manufacturing.

The Washdown encoders are designed with a Stainless Steel cover and housing and can be obtained with an IP67 sealing option.

IEC’s product line includes:

Incremental and Absolute Optical Encoders (Hollow Shaft and with Shaft)

Heavy Duty Industrial Ratings

Hollow Shaft Encoders with bores up to 65 mm.

Motor Mounting Friendly for Hollow Shaft Encoders


IEC’s products have been used and proven extensively in Robots, Cranes, Forestry, Oil and Gas Drilling, Machining, Elevator, Factory Automation, Food Processing, Material Handling, and Energy Production applications. IEC is UL certified, and is also certified for Explosion Proof applications in Zones 1, 2 and 3.

IEC designs, manufactures, and markets Optical Encoders for demanding applications. For more information please contact Jon Gum, Motion Control Research, at 435-627-1086 or at jon.gum@globalencoder.com.

GE Washdown Motors

If you are considering using GE Washdown Motors, you might want to consider using an Industrial Encoder Corporation Washdown Encoder in the system for feedback.

Copied from GE's Website:

GE's line of washdown permanent magnet motors combine the rugged construction features which customers expect from GE standard PM motors with additional accessories to produce motors optimized for applications with high humidity or periodic exposure to water. The enclosures of these motors are designed to offer moisture and corrosion protection in excess of totally enclosed motors, making them suitable for high-pressure washdown

Washdown Motors

This site will specialize in Washdown Motors coupled with Washdown Encoders.

Jon