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.
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.
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
Model
Mounting Type
Detection Distance (mm)
Length (mm)
Housing Material
Output Type
Switching Frequency (Hz)
Supply Voltage (V DC)
Current Consumption (mA)
Load Current (mA)
Protection Rating
Operating Temperature (°C)
Connection Method
Features
M8*18 (Flush)
Flush
1.5
18
Stainless Steel
NPN/PNP, NO/NC
3000
10-30
≤10
≤200
IP67
-25 ~ +70
Cable
Compact design, suitable for tight spaces
M8*18-Y (Flush Y-type)
Flush
1.5
18
Stainless Steel
NPN/PNP, NO/NC
3000
10-30
≤10
≤200
IP67
-25 ~ +70
Y-type Connector
Quick connection, easy installation
M8*35 (Flush)
Flush
2
35
Nickel-plated Copper
NPN/PNP, NO/NC
2000
10-30
≤10
≤200
IP67
-25 ~ +70
Cable
Standard length, balanced performance
M8*35 (Non-Flush)
Non-Flush
4
35
Nickel-plated Copper
NPN/PNP, NO/NC
1500
10-30
≤10
≤200
IP67
-25 ~ +70
Cable
Longer detection distance, flexible application
M8*45 (Flush)
Flush
2
45
Stainless Steel
NPN/PNP, NO/NC
2000
10-30
≤10
≤200
IP67
-25 ~ +70
Cable
Extended housing, suitable for deep installation
M8*45 (Non-Flush)
Non-Flush
4
45
Stainless Steel
NPN/PNP, NO/NC
1500
10-30
≤10
≤200
IP67
-25 ~ +70
Cable
High durability, industrial-grade detection
Frequently Asked Questions
What is the sensing distance of an M8 inductive proximity switch?
Flush (shielded) M8 sensors detect mild steel at about 1.5–2 mm; non-flush (unshielded) versions reach about 4 mm. The rated sensing distance Sn is specified for a standard steel target — aluminium, brass and stainless steel reduce it by a known correction factor.
What is the difference between flush and non-flush M8 sensors?
Flush (embeddable) sensors mount level with surrounding metal and have a shorter, more interference-immune range. Non-flush sensors need a clear zone around the face but give a longer sensing distance. The DAIDISIKE M8 is available in both.
Should I choose NPN or PNP, NO or NC output?
PNP (sourcing) is the default for most modern PLCs, especially in Europe; NPN (sinking) is common in some Asian controls. NO closes on detection, NC opens. The DAIDISIKE M8 is a DC 3-wire sensor available in NPN/PNP and NO/NC.
Can the DAIDISIKE M8 replace an Omron, SICK, Balluff or Autonics M8 proximity sensor?
Usually yes — it shares the M8×1 thread, DC 3-wire NPN/PNP wiring, IP67 rating and 1.5–4 mm range, so it fits the same bracket and cable. Match the flush/non-flush type, length (18/35/45 mm) and output to the unit being replaced.
What ingress protection and temperature range does it have?
The DAIDISIKE M8 is rated IP67 with a stainless-steel or nickel-plated brass housing and a −25 °C to +70 °C operating range, suitable for machine tools, conveyors and automotive assembly lines.
