M4 Series Plastic Fiber Optic Sensing Patch Cord

The M4 series plastic fiber optic sensing patch cord is a small interface optical transmission component adapted to tiny installation spaces in the industrial sensing field. Its core configuration consists of an M4 threaded connector and plastic fiber (POF). With its compact size and stable signal transmission capability, it is often used in precision workpiece inspection scenarios.

Plastic Fiber Optic Body: The core primarily uses PMMA plastic optical fiber, with common core specifications including 0.25mm*9+0.5mm and 0.5mm combinations, adaptable to the commonly used 650nm red light band. Some models use imported Japanese fiber optic cables to ensure transmission stability. For precision inspection needs, some models can capture signals from workpieces as small as 0.05mm, and transmission attenuation over short distances meets the signal fidelity requirements of precision sensing.

M4 Miniature Connector: Equipped with a 4mm outer diameter M4×0.7 threaded connector. The head is mostly made of stainless steel, offering high mechanical strength. The threaded locking enhances connection stability and adapts to confined installation spaces. Some models also have a reserved M2.6×0.45 thread for adding a teleconverter lens to expand the detection range. The fiber head undergoes a 4-stage polishing process, resulting in excellent end-face flatness and smoothness, reducing optical signal loss.

Protection and reinforcement structure: Cable sheaths are commonly available in fine diameter specifications such as 1.0mm and 1.3mm, with some made of cross-linked polyethylene; fiber optic tubes are made of annealed capillary tubes, which can be bent into irregular shapes to adapt to complex cabling. Some products have reinforced designs in key areas, and are also compatible with freely cut connection methods, allowing for easy length adjustment on-site according to installation distance.

Notes

Detection distance varies with different amplifiers and the size of the detected object.

The length of the sensor cable can be customized according to customer requirements.

Notes

Detection distance varies with different amplifiers and the size of the detected object.

The length of the sensor cable can be customized according to customer requirements.

Suitable for Confined Installation Spaces: The M4 is a small interface standard for industrial sensors, making it more suitable for installation in space-constrained equipment such as electronic components and precision instruments compared to the M6 ​​series. It offers exceptional flexibility in dense cabling scenarios.

Highly Adaptable for Precise Detection: The fine-diameter fiber core paired with high-precision ground tips enables accurate signal capture from minute workpieces, making it particularly suitable for transmitting sensing signals from small hardware and electronic components.

Easy Installation and Maintenance: Supports freely cut lengths; some kits include fiber optic cleavers for quick on-site size adjustments. The threaded connection method is simple to operate, allowing for quick plugging and unplugging for maintenance even in densely packed environments.

It is widely used in fields such as visual sensing equipment, industrial robots, food processing and packaging, precision inspection of automated equipment, and automobile manufacturing.