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Tuning Fork Level Switch manufacturer India

Product Name: Tuning Fork (Vibrating Fork) Level Switch.

Product Variants:

  • ● Standard Length
  • ● Extended Fork Length
  • ● Weatherproof/Flameproof versions

Product Overview / Description:

Kuncham Controls’ Tuning Fork Level Switch offers precise, non-mechanical detection of liquid or fine solid levels in tanks and process vessels. Operating on vibrating fork principles, these switches are impervious to material sticking, foam, or turbulence. With no moving parts, minimal maintenance, and high durability, they provide reliable operation in pharmaceuticals, food processing, and chemical applications. Extended probe versions are available for deep or large containers, with a high level of customization available to meet client needs.

Pressure Indicator Transmitter with Screwed Connection
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Types of Tuning Fork Level Switch We Manufacture

Tuning Fork Level Switch Extended
Tuning Fork Level Switch Extended

It's designed for precise fluid level detection in deeper tanks or vessels.

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Tuning Fork Level Switch Flanged End
Tuning Fork Level Switch Flanged End

Features a flanged connection for secure installation in pipelines.

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Tuning Fork Level Switch
Tuning Fork Level Switch

Its uses vibrating forks to detect fluid levels. As the liquid level changes.

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Working Principles of Tuning Fork Level Switch:

A vibrating tuning fork level switch operates on the principle of resonance frequency detection. The device consists of a tuning fork sensor that continuously vibrates at its natural resonant frequency when not in contact with any material. When the fork comes in contact with liquid or solid material, the vibration is dampened due to the change in the surrounding medium’s density. This frequency shift is sensed by an electronic circuit, which then converts the change into an electrical output signal. This output can be used for high or low-level indication, pump control, or overflow/empty tank protection. Since the technology is independent of dielectric constant, conductivity, or pressure, it provides reliable performance even in challenging process conditions involving viscous liquids, powders, or granular materials.

Key Features / Highlights:

  • ● Maintenance-free, no moving parts
  • ● Suitable for liquids and some powders
  • ● High sensitivity and reliability
  • ● Extended fork lengths (100 mm–3000 mm)
  • ● Weatherproof (IP67), flameproof options

Technical Specifications:

  • ● Power Consumption: 3W approx
  • ● Fork Length: 100 mm–3000 mm
  • ● Ambient Temperature: −40°C to 60°C
  • ● Output: SPDT relay
  • ● Material: Stainless steel probe
  • ● Enclosure: Weatherproof IP67, flameproof optional

Applications / Industry Use:

  • ● Chemical process tanks
  • ● Water and wastewater treatment
  • ● Food and beverages
  • ● Pharmaceutical reactors

Why Choose Kuncham Controls for Tuning Fork Level Switch:

Kuncham Controls Pvt. Ltd. is a trusted manufacturer of advanced tuning fork level switches, known for precision engineering, reliable performance, and innovative sensor design. Our tuning fork switches are built for accuracy and stability, offering maintenance-free operation even in extreme temperatures, pressures, and corrosive environments. Each product undergoes rigorous testing to ensure dependable level detection for liquids, slurries, and bulk solids. With smart electronic circuitry, fast response time, and easy installation, Kuncham Controls’ switches enable safe and efficient level management across chemical, food, pharmaceutical, and process industries. Customers choose us for our affordable pricing, quick support, and long-lasting reliability, making Kuncham Controls a preferred name in industrial level instrumentation.

Tuning Fork Level Switch — Q&A

Find answers to common questions about our tuning fork level switches.

A tuning fork level switch is a point-level detection device used to sense the presence or absence of material at a specific level in a tank or pipeline. At Kuncham Controls, our tuning fork switches work on the principle of vibration frequency change. When the fork is free, it vibrates at its natural frequency. When the media (liquid or solid) touches the fork, the vibration frequency drops. This change is detected by the electronics, which then triggers a switching output for alarms, pumps, or process control.

Kuncham Controls tuning fork level switches are suitable for a wide range of materials, including:

  • Liquids: water, solvents, chemicals, oils, viscous liquids
  • Powders: cement, sugar, flour, grains
  • Granular solids: pellets, resin, plastic granules, food grains
  • Slurries and semi-solids: depending on density and consistency

They work effectively even with foam, turbulence, vibration, or aeration, where other sensors may fail.

Key advantages of our tuning fork switches include:

  • Reliable detection in liquids and solids
  • Not affected by temperature changes, pressure variations, foam, or dielectric constant
  • No calibration required in most applications
  • Suitable for harsh industrial conditions
  • No moving parts, resulting in long service life
  • Works in low-density and low-viscosity media
  • Easy installation in tanks, silos, pipelines, and hoppers

This makes them ideal for chemical, pharmaceutical, food, water treatment, and bulk material industries.

To select the right model, consider:

  • Type of media (liquid, powder, granular solid)
  • Density of the material
  • Operating temperature and pressure
  • Mounting type (side, top, or threaded connection)
  • Fork length required for deep tanks or extended insertion
  • Electrical output needed (relay, PNP/NPN, 2-wire AC, etc.)
  • Explosion-proof or hygienic requirements, if applicable

Kuncham Controls provides expert guidance—share your tank details and media specifications, and our team will recommend the most suitable tuning fork switch.

Installation and maintenance are simple:

  • Mount the switch vertically or horizontally as per the application
  • Ensure the fork is fully exposed to the media and not touching the tank wall
  • Use proper sealing to avoid leakage
  • Check wiring and output connection during installation
  • Periodic cleaning may be needed for sticky or build-up-prone media
  • No routine calibration is required, but occasional functional testing is recommended

For any installation guidance or maintenance assistance, Kuncham Controls Technical Support is available to help.

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