Overflow Switch for Screw-Chain Conveyor

Product Details:

Frequency 50 Hz
Capacity Handles heavy-duty industrial conveyors
Connectivity Type SPDT Output (Relay contact)
Temperature Range -10C to +60C
Application Media Bulk solids, granules, powders
Diameter Suits standard screw/chain conveyor sizes
Sensor Type Electromechanical paddle type
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Overflow Switch for Screw-Chain Conveyor Product Specifications

Protection IP65 Enclosure
Equipment Type Overflow Switch for Conveyor
Humidity % Up to 95%, non-condensing
Material Powder coated mild steel / SS304
Power Consumption < 10 W
Display Type LED Indicator
Measurement Range On/Off (Overflow detection)
Current Range 5A max (Relay output)
Sensor Type Electromechanical paddle type
Diameter Suits standard screw/chain conveyor sizes
Range Adjustable (as per conveyor spec)
Application Media Bulk solids, granules, powders
Power Supply 230V AC, 50 Hz
Connectivity Type SPDT Output (Relay contact)
Temperature Range -10C to +60C
Accuracy 2%
Capacity Handles heavy-duty industrial conveyors
Frequency 50 Hz

Product Description

Function:

The membrane must to be exposed to the material.

The movement of the switch is the result of the pressure exerted by the incoming bulk material against the membrane which forces the membrane to move backwards, reversing the position of the switch and the signal is used for example to control the transport system in the silo.

The models A-100, AD, SR y CD2M and the models with S.S. membrane have a regulation system by a spring that allows the adjustment of the sensitivity. Tightening the regulation nut to reduce the sensitivity and increase the strain of the material to activate the microswitch. Clockwise insensitive.

The models are adjusted at their maximum sensitivity. It is necessary to ensure the proper pressure to the membrane that returns the membrane when there is no product covering it.

Mechanical connection:

Drill holes in the silo or vessel and mount the indicator using screws, rods, fasteners or nuts M6 making sure of the easy flow of the material and ensure that the product leaves the membrane without product on it.

Robust and Reliable Overflow Protection

Engineered for industrial conveyors handling bulk solids, our overflow switch stands out with its electromechanical paddle sensor and IP65 enclosure. It delivers rapid response (less than 1 second) and ensures system shutdown in overflow cases, safeguarding machinery and reducing downtime. Its heavy-duty construction, resistance to dust and harsh ambient conditions, and compatibility with screw and chain conveyor types make it a reliable choice for continuous operation.

Simple Installation and Easy Maintenance

This overflow switch is designed for an easy, bolt-on flange installation on conveyor housings-no need for elaborate setup or specialized tools. The paddle mechanism requires only occasional visual checks for optimal operation, translating to minimal maintenance overhead. Suitable for dusty industrial settings, the device provides years of trouble-free service with straightforward periodic inspections.

FAQ's of Overflow Switch for Screw-Chain Conveyor:

Q: How does the lever-operated rotary paddle switch detect overflow in a screw-chain conveyor?

A: The electromechanical paddle rotates freely inside the conveyor housing. When material accumulates excessively, limiting its motion, the switch detects resistance and activates the change-over relay, instantly interrupting the conveyor system before any overflow or damage occurs.

Q: What are the main benefits of using this overflow switch for bulk solid conveying systems?

A: This overflow switch provides rapid response in under a second, robust IP65-rated protection for dusty environments, accuracy of 2%, and a long service life of over a million operations. It prevents spillage, protects equipment, and simplifies maintenance with easily accessible components and LED status indication.

Q: When should a visual inspection of the overflow switch be performed?

A: Periodic visual inspections are recommended, ideally during routine conveyor maintenance shutdowns. Checking for dust build-up, paddle movement, or LED indicator status ensures continuous and reliable operation of the switch.

Q: Where is the overflow switch typically installed on the conveyor system?

A: The device is flange-mounted directly onto the conveyor housing at points most susceptible to overflow, usually near the discharge or transfer sections, ensuring prompt detection and interruption during abnormal conditions.

Q: What makes this overflow switch suitable for heavy-duty industrial conveyors?

A: Constructed with powder-coated mild steel or SS304 and designed to tolerate -10C to +60C temperatures with up to 95% humidity, the switch handles rigorous use. It accommodates standard conveyor sizes, has a 5A max relay output, and withstands over a million operations, ideal for demanding industrial applications.

Q: How is the switch output integrated into existing conveyor system controls?

A: The SPDT relay output provides potential-free change-over contacts that can be directly connected to system control panels, allowing for seamless interface and immediate shut-off or alarm activation during overflow conditions.

Q: What process does this switch use to alert operators of an overflow condition?

A: When activated by a jammed paddle, the switch interrupts the conveyor and triggers the LED indicator, alerting operators to the issue. The relay contact can also be configured to signal alarms or halt upstream processes, ensuring prompt attention and minimal downtime.

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