M12 Inductive Sensor

The Garantta cylindrical M12 inductive sensor has functions such as short-circuit protection, reverse polarity protection, overload protection, etc. (DC), and the detection surface and housing are designed with stainless steel integration, which improves the impact resistance and wear resistance performance. In addition, the red LED indicator light can conveniently display the output status of the sensor.

(1) Simple structure: no movable electrical contacts and long life.

(2) High sensitivity: The output signal is strong, and the voltage sensitivity can reach hundreds of millivolts per millimeter.

(3) Large resolution: can feel small mechanical displacements and small angle changes.

(4) Good repeatability and linearity: Within a certain displacement range, the output characteristics have good linearity, and the output is stable.

(5) Generality: The thread size of M12 is very common in industrial applications, making it easy to install and replace

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M12 inductive sensors

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1. Installation of spiral sensor: Do not use excessive torque to tighten the sensor during installation.
2. Installation of cylindrical sensors: When using adjustment screws, please use a tightening torque of 2-4 kgf-cm for installation.
Note: T-torque (2kgf cm 3. Protection of sensor leads: When installing the sensor, please leave the lead position about 10cm away and fix it with a wire clamp to prevent the sensor leads from being damaged by external forces.
4. Prevent mutual interference between sensors: When sensors are installed opposite or in parallel, please install them with a larger size to avoid mutual interference and misoperation. Note: S-detection distance, D-sensor diameter

5. DC sensors should use insulated transformers and ensure a stable power supply ripple. Prevent damage or misoperation of the sensor when power lines or power lines pass around the sensor leads.
6. Place the metal tube over the sensor lead and ground it.
7. Please set the sensor usage distance within the rated distance to avoid being affected by temperature and voltage.
8. It is strictly prohibited to connect wires with electricity, and the wiring should be strictly in accordance with the output circuit schematic diagram of the wiring diagram.
9. To ensure the reliability and longevity of the action, please avoid temperatures outside the relevant regulations (outdoor) conditions. Although the proximity sensor is a water-resistant structure, if it is used with a cover, do not let water and water-soluble cutting oil splash on it, which can improve reliability and longevity. Please also avoid using chemical agents, especially in climates with strong alkali, acid, nitric acid, hot concentrated sulfuric acid, etc. If users need special requirements such as waterproof, oil proof, acid resistant, alkali resistant, high temperature resistant sensors or other specifications, they should specify them when ordering, and customization is acceptable.

Q: Do you offer both NPN and PNP output? Can your M12 sensor replace Siemens/Omron M12 proximity switches directly?

A: Our full M12 series covers NPN NO/NC and PNP NO/NC 3-wire outputs, fully compatible with European PLC brands like Siemens, Allen-Bradley, Schneider. Standard M12×1 thread size, 2m PVC cable, 10-30VDC wide voltage perfectly match international brand installation dimensions and wiring logic, direct plug-and-play replacement without equipment modification. Custom cable lengths (5m/10m) and high-temperature silicone wire versions are available for special production line requirements.

Q: What's the difference between shielded (flush) and unshielded M12 inductive sensors? Which one should I choose for my stamping machine?

A: Shielded M12 proximity sensors support flush mounting inside metal brackets without signal attenuation, ideal for compact stamping dies with limited installation space, rated 2mm detection distance. Unshielded non-flush models deliver double 4mm sensing range for metal parts counting on assembly lines, but need 12mm clearance around the sensor body to avoid metal interference. For punch press narrow die installation, pick shield GPL-M12KS series; for long-distance metal part detection on automated conveyors, select unshielded GPL-M12KU 8mm version. Both series feature full reverse polarity, short-circuit protection and IP67 waterproof rating for workshop cutting oil environments.

Q: Will your M12 inductive switches malfunction next to frequency inverters or welding arc electromagnetic interference?

A: All Garantta M12 inductive proximity sensors adopt nickel-plated brass full shielding housing with internal anti-interference circuit design, resisting EMI from servo inverters, welding equipment and motor cables. We separate signal wiring power supply design; if you route sensor cables 30cm away from high-voltage welding lines and use shielded wire grounded at one end, false triggering can be completely avoided. The operating temperature range -25℃~70℃ supports cold storage, metal smelting and high-temperature press workshop continuous operation without drift of detection distance.

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