Inductive switches

Inductive sensors 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.

Inductive sensors with impressive cost effectiveness: The new IS D series for industrial automation

The new IS D series’ inductive sensors offer a universal and reliable solution for the contactless detection of metallic objects in various industries. The portfolio includes the cylindrical designs M8, M12, M18 and M30 in the embedded and non-embedded installation variants. The sensors are easy to install thanks to their external thread and are UL-certified to meet the requirements of international standards. The excellent price-performance ratio makes the IS D series a cost-effective solution for projects with a large number of sensors.

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Your benefit

For a wide range of applications in various industries
Excellent price-performance ratio
Up to 2x switching distance
Common cylindrical designs with external thread
Robust bending protection (for cable variants) for variable applications
UL-certified

Applications

Load receptacle end position detection

Requirement:

For work with forklift trucks or vehicles with movable load receptacles, the end position of the fork or telescope, for example, must be detected in order to stop a lifting movement and enable a driving movement.

Solution:

The IS D series’ inductive sensors reliably detect the end position of the metal lifting arm. Depending on the required switching distance and assembly, quasi-embedded and non-embedded variants are available – e.g. the embedded IS D12MM/4NO-4E0 achieves a switching distance of up to 4 mm.

Dancer roll position detection

Requirement:

For self-adhesive labelers, the belt tension or a carrier tape breakage must be detected with the aid of a pre-tensioned free (dancer) roll. The position must be adjustable using different label materials.

Solution:

Inductive sensors detect the metal base of the roller – for example in the event of a tear in the carrier tape – and then emit a corresponding signal so that the defect can be rectified. The IS D series’ compact design with bending protection (e.g. IS D08MM/4NO) is a very suitable solution for this application.

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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.

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Your benefit

Cost-effective 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-embedded and non-embedded
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.

Skid conveyor system position control

Requirement:

In the automotive industry, the skid conveyor system’s position must be determined precisely so that 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 212 series sensors (e.g. ISS 212MM.2/4NO-10N-S12) are particularly suitable for this application due to their small design.

Technical features

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