PRFD Series Full-Metal Cylindrical Long-Distance Inductive Proximity Sensors

The PRFD series cylindrical proximity sensors feature long sensing distances and full-metal housing and sensor heads made of stainless steel 303. The robust sensors are highly resistant to deformation and corrosion and can be applied in diverse environments including food and beverage manufacturing, chemical, and metalworking industries. The metal sensor head provides high resistance to impact and wear and the 360° ring type status indicator allows users to quickly identify operation status from various angles.

Main Feature

  • Long sensing distance
  • High resistance to impact and wear caused by contact with workpieces or wire brushes (sensor head/housing: stainless steel)
  • Reduced risk of malfunction caused by aluminum chips
  • Operation indicator (red LED), stability indicator (green LED)
  • 360° ring type status indicator (except M8 models)
  • Oil resistant cable
  • IP67 protection structure (IEC standard)
  • PTFE coating prevents malfunctions caused by welding spatter (spatter-resistant PRFDA□ models)

Full-Metal Housing

Think Sensor Head

Long Sensing Distance

Operation, Stability Indicators

Strong Against Impact and Wear

Various Protection Circuits

Protection Rating

Various Cable Types

Available in Various Sizes and Cable Types

The sensors are available in M8, M12, M18, M30 size models, and cable/cable connector/connector types allowing installation in tight or limited spaces and various other user settings.

Full-Metal Sensor Heads Provide Resistance to Impact and Wear

The stainless steel 303 sensor heads provide strong resistance to impact and wear, making the sensors ideal in environments where the sensor heads can be damaged or worn due to workpieces or wire brushes.

Impact Resistance
Wear Resistance

Initial state

After 150,000 cycles

After 300,000 cycles
(Normal operation)

Initial state

After 30 minutes

After 3 hours
(Normal operation)

Sensors can be used safely even in harsh operating conditions without risk of damage to the sensor heads.

Sensors can be used safely even with the wear on the sensor heads caused by continuous wire brush use.

Reduced Risk of Malfunction Caused by Aluminum Chips

The sensors are designed to minimize the risk of malfunction due to aluminum chips, offering high performance in environment with metal debris.

Oil-Resistant (PVC) Cable

The robust oil-resistant cable allows the sensors to be installed in environments with hydraulic fluids or cutting fluids.

Ring Type Status Indicator

The 360° ring type operation indicator (red LED) and stability indicators (green LED) allow users to quickly identify operation status from various angles.

*Except for M8 models

IP67 Protection Structure

The IP67 protection structure allows stable and error-free operation even in wet or dusty environments.

High Durability in Welding Environment

Full-metal inductive sensors feature high resistance to magnetic field noise from welding current and the non-stick PTFE coating prevents welding spatter from sticking on to the sensors which minimizes the risk of malfunctions during welding applications

* Spatter-Resistant PRFDA□ Models

Normal operation even in at 10 mm front installation and 50 mm side installation. (M18 models)

  • * Minimum distance may change depending on welding environment
  • * Protection cover sold separately

* PTFE (Polytetrafluoroethylene) Coating : A synthetic fluoropolymer of tetrafluoroethylene which has high heat resistance properties, low coefficient of friction, high abrasion resistance, non-stick properties, and excellent dielectric properties.