The IFM E21104 is a high-flex fibre optic through-beam sensor designed for reliable object detection in industrial automation applications. It is suitable for installations where access is difficult and conventional photoelectric sensors cannot be mounted directly. The fibre optic construction allows flexible routing through compact machine spaces while maintaining reliable optical detection. With a 2000 mm total length and a minimum bending radius of 3 mm, it supports convenient installation around machinery. The sensor is designed for use with compatible IFM fibre-optic amplifiers and can be cut to the required length.
Explore performance details, construction highlights, applications, and technical information in one clear overview.
The E21104 operates using a through-beam sensing principle for dependable object detection. It can be used with OB50, OBF, OCF and OO50 fibre-optic amplifiers to provide different sensing ranges. The high-power OCF amplifier can provide a range of up to approximately 2160 mm with this fibre. Its straight sensing head and compact fibre diameter make it suitable for precise sensing applications. The design is particularly useful when the sensing point is difficult to access with conventional sensor housings.
The fibre optic element is designed for installations requiring extremely small bending radii. It has a minimum bending radius of only 3 mm, allowing it to be routed around compact machine components. The fibre uses PMMA as the optical material with an aluminium fibre head and PE sheath. This construction provides flexibility while maintaining reliable optical transmission. The 2000 mm length also provides sufficient installation flexibility for many industrial automation systems.
The E21104 can be integrated into production machinery, packaging systems, material handling equipment and automated inspection systems. Its fibre-based sensing arrangement allows the amplifier to remain away from restricted sensing locations. This is especially useful in machines where space around the detection point is limited. The fibre can be cut to the required size using the appropriate IFM fibre cutter. This makes the product suitable for customized machine installations.
High-flex fibre optic through-beam sensor
FE-11-EPA-M4/F217X0,06/2M configuration
Straight M4 sensing head
2000 mm total fibre length
Minimum bending radius of 3 mm
PMMA fibre construction
Aluminium fibre head
PE fibre sheath
Compatible with OB50, OBF, OCF and OO50 amplifiers
Suitable for cutting to required length
Industrial object detection
Factory automation systems
Packaging machinery
Material handling equipment
Machine inspection systems
Production-line automation
Compact machine installations
| Specification | Details |
|---|---|
| Brand | IFM |
| Model | E21104 |
| Product Type | Fibre Optic Through-Beam Sensor |
| Product Name | FE-11-EPA-M4/F217X0,06/2M |
| Product Category | Photoelectric Sensor Accessories |
| Operating Principle | Through-beam sensor |
| Application | Industrial environments |
| Compatible Amplifiers | OB50, OBF, OCF, OO50 |
| OB50 Fibre Range | 50 mm |
| OBF Fibre Range | 56 mm |
| OCF High Power Range | 2160 mm |
| OO50 Fibre Range | 120 mm |
| Ambient Temperature | -40 to +60 °C |
| Sensing Head Design | Straight |
| Sensing Head Thread | M4 |
| Sensing Head Length | 15 mm |
| Total Length | 2000 mm |
| Minimum Bending Radius | 3 mm |
| Core Diameter | 0.5 mm |
| Fibre Diameter | 217 × 0.06 mm |
| External Diameter | 1 mm |
| Fibre Material | PMMA |
| Fibre Head Material | Aluminium |
| Fibre Sheath Material | PE |
| Included Nuts | 4 × M4 hexagon nuts |
| Included Washers | 4 tooth lock washers |
| Included Adapters | OBF, OCF, OOF |
| Optional Accessory | E20600 fibre cutter |
| Pack Quantity | 1 pc |
| Weight | Approx. 35 g |
| Manufacturer | ifm electronic |
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