Inductive switches

Inductive switches are the industrial standard for the contactless detection of metallic objects.
The Leuze product range includes a wide variety of standard and special sensors that are available in many different designs and have already been tried and tested millions of times by our customers.
In particular our extremely robust all-stainless-steel sensors, sensors with extended switching distance or miniature sensors for extremely constrained spaces have again and again proven to be ideal for challenging applications.

Advanced sensors

Extensive portfolio with cubic and cylindrical designs
Short and normal designs
Sensors with high-end performance and UL certification
Up to 3x switching distance and antivalent sensors available

Special sensors

Sensors with an extra level of performance
All stainless steel sensors for extreme requirements
10-320V AC/DC 2-wire sensors

Inductive sensors with long operating range

New inductive sensors for switching distances up to 40 millimeters

Inductive sensors are used in all industries for the contactless detection of metals. The position detection of moving machine components is important for controlling the mechanics. Inductive sensors are the first choice, even if tools, input materials or end products made of steel, aluminum, copper alloys or stainless steel need to be detected.

Inductive sensors, also called proximity sensors, are known for reliably detecting metallic objects over short distances. Models with increased switching distances enable operating ranges up to three times longer than standard inductive sensors. The new sensors are therefore also suitable for applications with small installation spaces and/or large distances or tolerances – for example with inaccurate alignment, mechanical play or vibrations.

The new robust sensors with the designation IS 200MM.2 are made of nickel-plated brass and are available in cylindrical M12, M18 and M30 housings. They can even be used under high mechanical stress and provide highly accurate measurements and repeatability at a good price-performance ratio. The new sensors with switching distances of up to 40 millimeters can be installed quasi-flush or non-flush, depending on the respective application. The new sensors expand the existing inductive product portfolio.

Go directly to item selection

Advantages for you

Economical detection of metallic objects
High switching distance enables machine concepts with larger tolerances
Sensor installation at greater distances from the object reduces collisions
Lower storage costs: Sensor models can be used for different ranges
Robust design: Use in harsh environments with dirt or vibrations
Mounting options for different applications: quasi-flush and non-flush
Temperature range

Highlights

Long switching distance for reliable processes

Inductive sensors with a long switching distance can be mounted further away from the detection object. This simplifies the implementation of the sensors in applications with moving or imprecisely placed metallic objects and reduces the risk of collisions during operation.

Lower storage costs through standardization

The long switching distance of the new IS 200 series’ sensors means one sensor model can be used for several operating ranges. Standardizing designs can reduce stocking costs.

Applications

Frontal detection in the gantry crane

Requirement:

Goods are warehoused or stored temporarily using an industrial crane system. A sensor is to determine the crane or trolley’s final position to enable exact positioning.

Solution:

The IS 200 series’ inductive sensors reliably detect the crane’s final position. The cylindrical sensor IS 230MM.2/4NO-22E-S12 can be mounted quasi-flush and achieves operating ranges of up to 22 millimeters.

Position control of the skid conveyor system

Requirement:

In the automotive industry, the position of the skid conveyor system must be determined precisely so that the subsequent work steps can be coordinated and synchronized.

Solution:

Inductive sensors in a cylindrical design are suitable for this task. The robust ISS 218MM.2/4NO-20N-S12 sensors stand out for their long switching distances of up to 20 millimeters.

Object detection of product carriers

Requirement:

In packaging processes, the stacking and supply of primary packaging often takes place in magazines. The position of these magazines or feeder fingers must be detected to prevent collisions and to control the feed. Detection must be reliable even if carriers are inaccurately aligned.

Solution:

Inductive sensors detect the metal structures of the magazines reliably and precisely. The series 212 (e.g. ISS 212MM.2/4NO-10N-S12) sensors are particularly suitable for this application due to their small design.

Overview of inductive sensors

50151276 – ISS 212MM.2/4NO-6E0-S12
50151280 – ISS 212MM.2/4NO-10N-S12
50151286 – ISS 218MM.2/4NO-12E-S12
50151290 – ISS 218MM.2/4NO-20N-S12
50151294 – IS 230MM.2/4NO-22E-S12
50151297 – IS 230MM.2/4NO-40N-S12

Technical features

Parameter	ISS 212MM.2	ISS 218MM.2	IS 230MM.2
Operating range	0 – 6 mm (quasi-flush) 0 – 10 mm (non-flush)	0 – 12 mm (quasi-flush) 0 – 20 mm (non-flush)	22 mm (quasi-flush) 40 mm (non-flush)
Response time	≤ 20 ms	≤ 20 ms	≤ 20 ms
Repeatability	≤ 10%	≤ 10%	≤ 10%
Hysteresis	1 – 20%	1 – 20%	1 – 20%
Switching frequency	≤1300 Hz (quasi-flush) ≤2000 Hz (flush)	≤600 Hz (quasi-flush) ≤700 Hz (non-flush)	≤100 Hz (quasi-flush) ≤100 Hz (non-flush)
Connection type	M12 4-pin	M12 4-pin	M12 4-pin
Housing dimensions	M12 x 51 mm (quasi-flush) M12 x 54 mm (non-flush)	M18 x 55 mm (quasi-flush) M18 x 64 mm (non-flush)	M30 x 75 mm (quasi-flush) M30 x 87 mm (non-flush)
Temperature range	-25°C … +70°C	-25°C … +70°C	-25°C … +70°C
Protection class	IP 67	IP 67	IP 67