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M8 Inductive Proximity Switch

  • DAIDISIKE M8 proximity switch is a high-performance inductive proximity switch, also known as a metal proximity switch or metal sensing switch. This product features a DC three-wire design, with an 8 mm diameter, supporting flush and non-flush mounting, and a detection distance of up to 1.5-4 mm. It is suitable for industrial automation, mechanical positioning, and metal detection scenarios. The housing material is stainless steel or nickel-plated copper, with an IP67 protection rating, corrosion-resistant and impact-resistant, and an operating temperature range of −25 °C to +70 °C. Choose DAIDISIKE M8 proximity switch to enhance your production efficiency and reliability. Keywords: M8 proximity switch, metal proximity switch, inductive proximity switch, metal sensing switch, DAIDISIKE sensor.
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DAIDISIKE M8 Inductive Proximity Switch feature illustration

DAIDISIKE M8 inductive proximity switch is a high-performance metal proximity switch, also known as inductive proximity switch or metal sensing switch. This series features DC 3-wire design, tailored for industrial automation, capable of reliably detecting metal objects with non-contact sensing. Our M8 proximity switches offer flush and non-flush mounting options, suitable for various installation environments. The DAIDISIKE brand is committed to providing high-quality, reliable sensor solutions to help customers improve production efficiency.

Product Description

DAIDISIKE M8 inductive proximity switch is a cylindrical inductive sensor with an 8 mm diameter and lengths including 18 mm, 35 mm, and 45 mm. The product supports flush and non-flush installation, where flush type is ideal for embedded mounting, and non-flush type offers longer detection distance. It features stainless steel or nickel-plated copper housing with IP67 protection rating, corrosion-resistant and impact-proof. Output types include NPN or PNP, NO/NC optional, suitable for PLC, robots, and automation equipment. The product complies with RoHS standards, environmentally friendly and reliable. Keywords: M8 proximity switch, metal proximity switch, inductive proximity switch, metal sensing switch, DAIDISIKE sensor.

Working Principle

The working principle of the inductive proximity switch is based on electromagnetic induction. When a metal object enters the sensor's detection zone, it changes the inductance of the internal coil, causing amplitude variations in the oscillation circuit, thereby triggering the output signal. The sensor uses a high-frequency oscillator to generate an electromagnetic field for non-contact detection of metals like iron, steel, and aluminum. The DC 3-wire design includes power, ground, and output lines for stable output. Detection distance is influenced by metal type, size, and installation method; flush type has shorter distance but concealed installation, while non-flush has longer range.

Product Application Environment

DAIDISIKE M8 proximity switch is widely used in industrial automation, machinery manufacturing, automotive assembly, packaging lines, and logistics systems. It is suitable for detecting metal part positions, counting metal objects, or preventing collisions. It performs excellently in harsh environments like humid, dusty, or vibrating conditions, with a working temperature range of −25 °C to 70 °C. Typical applications include robot arm positioning, conveyor belt metal detection, and machine tool limit switches. The product is oil-resistant and water-resistant, applicable in food processing, chemical, and metallurgy industries.

Product Parameters

Supply Voltage: 10-30 V DC

Output Type: DC 3-wire, NPN/PNP optional, NO/NC

Current Consumption: ≤10 mA

Load Current: ≤200 mA

Switching Frequency: 1000-3000 Hz (depending on model)

Protection Rating: IP67

Housing Material: Stainless steel or nickel-plated copper

Operating Temperature: −25 °C ~ +70 °C

Storage Temperature: −40 °C ~ +85 °C

Repeatability: ≤1%

Connection Method: Cable or Y-type connector (some models)

Compliance Standards: RoHS, CE

Detailed Specifications Table for All Models

ModelMounting TypeDetection Distance (mm)Length (mm)Housing MaterialOutput TypeSwitching Frequency (Hz)Supply Voltage (V DC)Current Consumption (mA)Load Current (mA)Protection RatingOperating Temperature (°C)Connection MethodFeatures
M8*18 (Flush)Flush1.518Stainless SteelNPN/PNP, NO/NC300010-30≤10≤200IP67-25 ~ +70CableCompact design, suitable for tight spaces
M8*18-Y (Flush Y-type)Flush1.518Stainless SteelNPN/PNP, NO/NC300010-30≤10≤200IP67-25 ~ +70Y-type ConnectorQuick connection, easy installation
M8*35 (Flush)Flush235Nickel-plated CopperNPN/PNP, NO/NC200010-30≤10≤200IP67-25 ~ +70CableStandard length, balanced performance
M8*35 (Non-Flush)Non-Flush435Nickel-plated CopperNPN/PNP, NO/NC150010-30≤10≤200IP67-25 ~ +70CableLonger detection distance, flexible application
M8*45 (Flush)Flush245Stainless SteelNPN/PNP, NO/NC200010-30≤10≤200IP67-25 ~ +70CableExtended housing, suitable for deep installation
M8*45 (Non-Flush)Non-Flush445Stainless SteelNPN/PNP, NO/NC150010-30≤10≤200IP67-25 ~ +70CableHigh durability, industrial-grade detection
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