Encoders, Controls & Counters, Sensors
FSI Technologies Inc. manufactures a full line of high performance rotary encoders, photo-electric sensors, and controls for use in industrial, commercial, military, and medical applications. We were founded in 1959 as FSI / Fork Standards and are committed to innovation, quality and performance.
Encoder Brochure (500K)
FSI has been designing and manufacturing high quality optical incremental rotary shaft encoders for industrial, commercial, military and medical applications
for over 30 years. Encoders convert motion into digital information for display or control based on motion variables such as position, speed, length, RPM, etc.
Encoders are available in single channel or quadrature output, line counts up to 2500 in base, flange, series 25, 5PY and face mount versions. Single or double shaft, shaft diameters 1/8” – ¾”, and hollow shaft bore diameters 1/8” – 1.65” are available, in standard, heavy and severe duty versions. Index pulse & differential outputs. Dust proof, waterproof enclosures through NEMA 4X stainless steel and IP-66. Custom and OEM versions are available.
FSI encoders are widely recognized for their legendary quality and durability. In addition to our "Fork Standards" cube encoders, FSI has partnered with Kwangwoo to provide a complete line of competitively-priced, high-quality, industrial-grade optical encoders, both solid and hollow shaft. We manufacture and brand label encoders for many familiar encoder suppliers.
FSI has pioneered many types of photoelectric sensor designs. As this marketplace has evolved, FSI's photoelectric offerings have resulted in a number of specialized "built to spec" OEM oriented products. Available as diffused photoelectric sensors, retro-reflective photoelectric sensors & modulated high-speed retro-reflective photoelectric sensors.
FSI offers a full line of electronic counters and controllers which are fully compatible with encoder, sensor and contact closure inputs. Types of controls include counter-based controllers, single/dual output rate controllers, position controllers, cut-to-length controllers & dual output rate/count controllers. Custom & OEM. Machine vision-based process, inspection and robot guidance controls are also available.
Distribution & Field Partners
FSI has a network of over 700 distributors, representatives and factory trained service providers.
Ordering Guide (600K)
The Ordering Guide includes the complete list of part numbers and descriptions for FSI Encoders, Connectors, Cables, Measuring Wheels, Counters and Sensors.