Rotary Paddles

The operating principle for paddle switches is very simple. A unit consists of a motor assembly and a shaft with a paddle attached to the end of it. The paddle is mounted through the wall at the top, middle or low level of a bin, depending on the requirements of the application.

During normal operation, with no material present, a synchronous motor rotates the paddle at one revolution per minute. When the paddle rotation is impeded by an infill of material surrounding the paddle blade, the motor will stall and cause a microswitch to change state, indicating an alarm or providing a control function.

The switches have a torque-adjusting mechanism based on a spring setting. This provides adjustment for light powders or denser materials. The RP Series also features a triple shaft seal to prevent ingress of dust into the unit housing.

This low-cost technology is excellent for solid products such as cement, sand and plastic pellets. The Hycontrol range is available with various extension lengths and paddle shape options.

RP Series Rotary Paddle Switches - Data Sheet
RP Series Rotary Paddle Switches - Manual v1
RP80 Rotary Paddle Switch - Manual v1
Rotary Paddles
  • Product Highlights
    • High-temperature options to 200°C
    • Simple installation via 1” BSP PC
    • Stainless steel construction
    • Adjustable insertion length
    • Triple shaft seal for long motor life
    • Very price competitive
    • Rugged aluminium housing
    • Multiple paddle designs and materials
    • Adjustable sensitivity
    • Two-year warranty on motor

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