IFM IER/IFR/IGR/IIR/IEW/IFW/IGW/IIW Series Inductive Proximity Sensor

Sensor, Inductive Proximity Sensor Switch, Proximity Sensor SwitchIFM

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2025/7/4 Update

Metal forming applications
— Cylindrical proximity switch M8, M12, M18, M30. Metal-face proximity switches have undergone extensive testing for a longer service life.

IFM IER/IFR/IGR/IIR/IEW/IFW/IGW/IIW Series Inductive Proximity Sensor

Technical Features

Metal-face proximity switches can withstand physical impact during workpiece installation in manufacturing cells.

New! Proximity switches resistant to welding field interference can ignore the effects of electromagnetic interference in welding environments that could cause false triggers; they also use K=1 sensor technology, providing the same sensing range for all target materials.

High-temperature resistant, weld-slag resistant coating prevents weld spatter from adhering to the proximity switch.

Withstands harsh environments, with a protection rating up to IP 68 / IP 69K.

The permanently laser-etched order number will not become illegible from long-term use.

Products + Accessories Selection:

Dimensions (mm)	Sensing range	No. of wires	Output function	Supply voltage (V DC)	Switching frequency (Hz)	Max. load current (mA)	Sensor terminal	Order No.
Metal sensing face • Weld-slag resistant
M8 / L = 60	2 mm, Flush	3	PNP, N.O.	10…36	100	100	M12 Micro DC	IER200
M8 / L = 60	2 mm, Flush	3	NPN, N.O.	10…36	100	100	M12 Micro DC	IER201
M12 / L = 45	4 mm, Flush	3	PNP, N.O.	10…30	2	100	M12 Micro DC	IFR207
M12 / L = 60	4 mm, Flush	3	NPN, N.O.	10…36	2	100	M12 Micro DC	IFR202
M18 / L = 45	8 mm, Flush	3	PNP, N.O.	10…30	2	100	M12 Micro DC	IGR207
M18 / L = 70	6 mm, Flush	3	NPN, N.O.	10…36	2	100	M12 Micro DC	IGR202
M30 / L = 50	15 mm, Flush	3	PNP, N.O.	10…30	2	100	M12 Micro DC	IIR207
M30 / L = 70	12 mm, Flush	3	NPN, N.O.	10…36	2	100	M12 Micro DC	IIR202
Correction factor K=1 • Resistant to welding field interference
New! M8 / L = 40	3 mm, Flush	3	PNP, N.O.	10…30	2000	100	M8 Pico DC	IEW200
New! M8 / L = 40	6 mm, Non-flush	3	PNP, N.O.	10…30	2000	100	M8 Pico DC	IEW201
New! M12 / L = 65	4 mm, Flush	3	PNP, N.O.	10…30	2000	100	M12 Micro DC	IFW204
New! M18 / L = 65	8 mm, Flush	3	PNP, N.O.	10…30	2000	100	M12 Micro DC	IGW202
New! M30 / L = 65	15 mm, Flush	3	PNP, N.O.	10…30	2000	100	M12 Micro DC	IIW202

Optional accessories

Description	Order No.
L-bracket, for 8 mm proximity switch	E10734
L-bracket, for 12 mm proximity switch	E10735
L-bracket, for 18 mm proximity switch	E10736
L-bracket, for 30 mm proximity switch	E10737

Cable Connecter

Description	Order No.
M8 Pico DC, (3-pin) 5 m, PUR	EVW069
M12 Micro DC (4-pin) 2 m, PUR	EVW001
M12 Micro DC (4-pin) 5 m, PUR	EVW002
M12 Micro DC (4-pin) 10 m, PUR	EVW003
M8 Pico DC, (3-pin) 5 m, PUR	EVW071
M12 Micro DC (4-pin) 2 m, PUR	EVW004
M12 Micro DC (4-pin) 5 m, PUR	EVW005
M12 Micro DC (4-pin) 10 m, PUR	EVW006

ifm cable connectors are specially designed and tested for metal forming applications. The cable material is high-temperature resistant, and the connecting nut has a weld-slag resistant coating.

Specifications:

Protection rating: IP67; Exception models IFR207, IGR207, IIR207: IP68 / IP69K
Operating temperature: 0…85 °C; Exception models IFR207, IGR207, IIR207, IEW200, IEW201, IFW204, IGW202, IIW202: -40…85 °C
Leakage current: Negligible
Housing material:
- Housing: High-grade stainless steel, weld-slag resistant coating
- Sensing face: High-grade stainless steel, weld-slag resistant coating;
- Correction factor K=1 series: Sensing face: weld-slag resistant coating, LCP
- Connector: PA; Locking nut: High-grade stainless steel, weld-slag resistant coating

Metal-face proximity switches have undergone extensive testing for a longer service life

The proximity switch is struck by a 1 kg impact hammer 2 times per second. This represents the force of a larger workpiece being loaded in a manufacturing cell. ifm's proximity switch can withstand 500,000 impacts, whereas a proximity switch with a plastic sensing face fails after 32,000 impacts.

Comparison of sensing ranges with non flush proximity switches 5

Benefits introduce In Detail

High performance, High value

ifm’s metal-face sensors use a special design and have been tested to reliably detect positions in harsh welding and metal stamping applications. The stainless steel sensing face and housing can withstand damage caused by physical impact during workpiece installation in manufacturing cells. The high-temperature, weld-slag resistant coating prevents weld spatter from adhering to the proximity switch, thus eliminating the need for abrasive cleaning techniques. The price of ifm’s proximity switches is lower than comparable metal-face proximity switches, making them standard equipment for factories, not just a solution for demanding applications.

IFM IER/IFR/IGR/IIR/IEW/IFW/IGW/IIW Series Inductive Proximity Sensor Switches benefits

New! ifm also offers proximity switches that are resistant to welding field interference, which can ignore the magnetic field interference generated by welding currents that can cause false triggers. These proximity switches also use correction factor K=1 (K=1) sensor technology, providing the same sensing range for all metals. The rugged LCP sensing face and a housing with a non-stick coating prevent weld spatter from adhering to the proximity switch. For applications where inductive proximity switches must be close to the welding nozzle and their output must be continuously monitored, ifm’s welding-field-resistant proximity switches are the ideal choice.