Chainbrake/Slow RPM/Stop Rotation Alarm

The Chainbrake / Slow RPM / Stop Rotation Alarm, available from BIBUS (UK) Ltd, is a rugged and intuitive monitoring system designed specifically for agricultural equipment drivetrain protection. Perfect for use on seeding or forage machinery, it automatically detects when a shaft or chain slows or halts and triggers a warning to prevent potential damage or downtime.

Equipped with a magnetic sensor and LED indicators, the system initially lights up to confirm shaft rotation and arms itself only after detecting movement. From this point, it monitors the interval between rotations—configurable between 0.5 and 5 seconds. Should that interval be exceeded, the built-in alarm sounds for 10 seconds, and the warning LED stays lit until rotation resumes. Optional second sensors and “headland disable” inputs support advanced workflows such as seed drill turnarounds.

Key Features

• Rotational detection via magnetic sensor mounted near a fixed magnet
• Visual confirmation of movement—LED flashes with rotation
• Customisable delay threshold (0.5 s to 5 s) before alarm triggers
• 10‑second audible alarm and persistent LED warning until rotation returns
• Optional second sensor for dual detection
• Headland/ignore sensor: disables alarm during intentional non-rotation, such as field turns
• Fully customisable in-house design—adaptable for complex systems (e.g., multi‑lane seed drills)
• Simple retrofit installation—no heavy wiring or electronics needed

Manufactured in the UK, these alarm units combine practical safety with flexible deployment, ensuring that machinery operators maintain smooth, safe operations during field cycles.

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