TMKS XLZL-Y Longitudinal Tear Detector: Dual Protection via Material Fall Weighing & Cable Wire Sensing for Conveyor Safety

In high-intensity bulk material handling operations such as mining, ports, power plants, and metallurgy, longitudinal tears caused by foreign objects puncturing the belt often result in catastrophic downtime and massive belt replacement costs. The TMKS XLZL-Y Longitudinal Tear Detector utilizes a dual "Falling Material Weighing + Cable Wire Sensing" protection mechanism combined with PLC intelligent control and auto-dusting systems to immediately trigger emergency shutdown upon tear occurrence.

I. Working Principle & Dual Detection Mechanism

The TMKS XLZL-Y system overcomes false alarms inherent in traditional single-sensor devices by integrating two distinct physical detection logic layers:

• Falling Material Detection (Weighing Trigger): When a belt puncture or tear occurs, conveyed material leaks through the crack onto the weighing detection plate below. Once accumulated weight reaches the set threshold, an instant trip signal is issued.
• Cable Wire Sensing (Object Penetration Trigger): Wire cables are positioned right beneath the conveyor belt. When sharp objects (such as tramp metal or oversized rocks) pierce through and move forward with the belt, they deflect the sensor swing arm, triggering immediate emergency shutdown.

II. Technical Specifications Table

XLZL-YLongitudinal Tear DetectorWhen phenomena such as longitudinal tearing, foreign body puncturing, or joint damage occur during the operation of the conveyor belt, the longitudinal tear detector can promptly issue an alarm or emergency stop signal through its dual detection methods (material drop detection and rip cord/barrier detection) as the puncturing object moves with the belt or when material spillage occurs, thereby preventing the expansion of accidents.View Product Details →

III. Installation & Commissioning Guidelines

• Optimal Installation Location: Position near loading points (underneath the intermediate frame of receiving chutes) where material impact and foreign body puncture risks are highest.
• Structural Fixing: Securely fasten the detection mechanism to the conveyor intermediate frame between two idler sets using specialized base plates and U-bolts.
• Cable Gap Adjustment: Adjust the gap between the wire cable and belt underside to approximately 30mm based on belt bounce and tension.

IV. Smart HMI Interface & Auto Dust Removal

• Visual HMI Touch Screen: The stainless-steel control box houses a dedicated HMI touch screen displaying real-time monitoring, parameter setup, and historical alarm logs.
• Auto-Flip & Vibration Dusting: To eliminate false alarms caused by dust accumulation on the weighing plate, the system controls flipping and vibrating motors to automatically sweep away debris.
• Programmable Thresholds: Users can customize tear alarm thresholds, dusting intervals, and alarm delay timing for different bulk material properties.

V. Industrial Application & Safety Protection Recommendations

• Critical Protection Points: Deploy XLZL-Y detectors at main loading points, transfer chutes, and head sections of long-distance overland conveyors.
• Automated Interlock Shutdown: Connect the relay contacts directly to the plant Central PLC control system to achieve millisecond-level emergency interlocking.
• Routine Maintenance: Inspect sensor arm flexibility and bolt tightness regularly to clear jammed debris and maintain continuous operational readiness.