Proximity sensors

Proximity sensors for hydraulic cylinders

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Technical features

Proximity sensors for hydraulic cylinders - Technical characteristics

Proximity sensors for hydraulic cylinders are aimed at manufacturers of vehicles or steering axles to detect the alignment of the wheels to the vehicle axis. Metallic magneto-resistive solutions are available for stainless steel cylinders and Hall effect sensors with plastic bodies for ferromagnetic cylinders.
The function of this type of sensor (mounted on the outside of the cylinder) is to detect the presence or absence of a magnetic field within a specific reading range determined by the presence of a magnetic strip or ring inside the cylinder along the direction of sensor passage.

PERFORMING ELECTRONICS

- Operating principle: passive inductive
- Supply voltage: min 9V – max 30V
- Switching distance: up to 4mm
- Signal output: single or double
- Output: NPN or PNP (N.O./N.C.)

VERSATILE MECHANICS

Stainless steel cylinders:
- Plastic or metal body with fixing holes
- Versions with cable outlet and integrated connector available
- Customizable cable and connector length< br>Iron cylinders:
- Plastic parallelepiped body
- Optional LED
- Customizable cable and connector length

RELIABILITY

- Operating principle: Hall effect or magnetoresistive
- IP67 protection degree
- Immunity to vibrations and electromagnetic disturbances
- Operating temperature: - 40°/+105°(iron); -30/+120° (stainless steel)
- Protections against ESD, load-dump, overvoltage, polarity inversion, short circuit on output

FUNCTIONAL SAFETY

- Signal redundancy thanks to the integration of isolated and galvanically distinct circuits (double output version)
- Diagnostics of short circuits towards Gnd and Vcc

Mechanical configurations

Plastic and metal solutions available depending on the type of cylinder.

Cylindrical proximity
Cable and connector
customizable
Power source
9V / 30V
Output
NPN o PNP (N.O./N.C.)
Number of signals
single/double
Cylinder material
plastic or metallic
Rectangular proximity
Cable and connector
customizable
Power source
9V / 30V
Output
NPN o PNP (N.O./N.C.)
Number of signals
single/double
Cylinder material
plastic or metallic

Applications

Elen proximity sensors for hydraulic cylinders are typically used on stainless steel cylinders and iron cylinders for steering axles.