Cylinder Proximity Sensors come in reed or electronic versions.
May 7, 2010 -
Able to sense position of pneumatic cylinders with magnetic pistons, Series 8D features all encapsulated design with metal over housing that protects internal components from harsh environments. Units have 9 ft PVC or 8 mm quick connect male pigtail and come in broad range of clamping styles for sensing round or tie rod type linear actuators. Operating from -10 to +70°C, sensors meet NEMA 6/IP67 specifications and include indicator light that shows switching condition.
(Archive News Story - Products mentioned in this Archive News Story may or may not be available from the manufacturer.)
Original Press release
Canfield Connector
8510 Foxwood Ct.
Youngstown, OH, 44514 USA

Cylinder Proximity Sensors
Series 8D - Reed & Electronic Magnetic Sensors
The Canfield Connector Series 8D is a robust yet compact switch designed to sense position of pneumatic cylinders with magnetic pistons. The switch features an all encapsulated design with a metal over housing that protects the internal components from harsh environments. The switch comes in reed, or electronic versions and has either 9 ft. PVC or 8mm quick connect male pigtail A broad range of clamping styles make this a very versatile alternative for sensing round or tie rod type linear actuator. The switch comes standard with an indicator light that shows switching condition.
General Technical Data
o Temperature Range: Operational from -10° to +70°C
o Shock: Operational up to 30G (11 ms.) reeds, 50G electronic
o Vibration: Operational up to 9G parallel
o Sensitivity and orientation: 60G parallel (standard minimum required for proper operation, as measured on sensor surface.
o Size of sensing area depends on size and strength of magnet and thickness of cylinder wall
o Most versions designed to meet NEMA 6/IP67 specifications
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