Rotary Shaft Encoder consists of 304 or 316 stainless steel.

Press Release Summary:

Industrial duty 4B Rotech encoder protects equipment and personnel from dangerous underspeed or belt slip conditions. Unit features sealed housing and is bolted directly to machine shaft; it is suited for machines with speeds ranging from 1–1,500 rpm. High speed versions can monitor shaft speed up to 5,000 rpm. Rated CSA Class II Div. 1 and IP67, AC/DC units are also available with 1–1,000 ppr and offered in -40°F and 302°F versions.

Original Press Release:

Stainless Steel Rotary Shaft Encoder

Morton, IL -- 4B Components Ltd., a worldwide manufacturer of material handling and electronic components for bucket elevators and conveyors, introduces an industrial duty stainless steel rotary shaft encoder.

The 4B Rotech encoder is used primarily for protecting equipment and personnel from dangerous underspeed or belt slip conditions.  Other applications include accurate speed control, direction of rotation detection, gate position indication and counting shaft revolutions.

The encoder housing is machined from 304 or 316 stainless steel and is completely sealed to be maintenance free for maximum reliability. No guarding is necessary since all rotating components are enclosed within the encoder housing, and because the encoder is bolted directly to the machine shaft, no additional mounting brackets are required. Encoders are available with various outputs AC/DC with 1 to 1,000 pulses per revolution, and can be installed on machinery with speeds ranging from 1 to 1,500 rpm. High speed versions are available that can monitor shaft speed up to 5,000 rpm.  Special low temperature  (-40°F / -40°C) and high temperature (302°F / 150°C) units are also available.

The encoder is available with hazardous dust approvals, CSA Class II Div. 1 and IP67 making it suitable for the most severe industrial environments from mineral processing and cement to food, pharmaceutical and chemical applications. 


Founded in the 1971 as a subsidiary of The Braime Group, 4B has been an industry leader in developing high quality, innovative, and dependable material handling components for the agricultural and industrial sectors.

4B's product line ranges from elevator buckets, elevator bolts and drop forged conveyor chain to level monitors, speed switches and hazard monitoring systems.

With offices in North America, Europe, Asia, Africa and Australia along with a worldwide network of distributors, 4B can provide practical solutions for applications in any location.

Press Contact:

Robert Gaul

Marketing Manager


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