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Inline Paint Density Meter

Short Description:

Continuous Density Monitoring in Industrial Processes

The inline paint density meter is a precision instrument designed for continuous, real-time monitoring of paint, coating, and ink density during production, mixing, and spraying processes. It eliminates the limitations of manual offline sampling by integrating directly into pipelines or tanks, ensuring consistent product quality, reducing material waste, and enabling automated process adjustment.

 


  • Density Accuracy: ±0.0005 g/cm³; ±0.005 g/cm³; ±0.001 g/cm³
  • Concentration Accuracy: 5‰, 1‰, 0.5‰
  • Temperature Accuracy: 0.01℃
  • Velocity Accuracy: 0.01 m/s
  • Medium Temperature: -20 ~ +80 ℃; -40 ~ +120 ℃
  • Ambient Temperature: -40 ~ 80 ℃
  • Relative Humidity: 0~98%
  • Explosive-Proof: ExdllCTGb
  • Waterproof: IP65
  • Signal Mode: Four wire / Two wire
  • Output Signal: 4~20mA
  • Communication Interface: Modbus (RS485)
  • Operation Pressure: ≤2.0 Mpa
  • Other Output: Profibus-DP, Bluetooth 5.3, Hart
  • Product Detail

    Product Tags

    Working Principle

    The inline ink density meter utilizes non-destructive ultrasonic sensing technology, in which the speed of ultrasonic waves propagating in a liquid is inherently correlated with the liquid’s density. Sound travels slower in denser liquids and faster in less dense ones. By quantifying this velocity variation, the meter converts the measured transmission time into precise density readings.

    Product Features

    ● Non-destructive ultrasonic tech enables uninterrupted operation​;

    ● Robust waterproof/explosion-proof design;

    ● Immune to interfere factors like liquid color, transparency, electrical conductivity, flow rate;

    ● No-moving-parts mechanical structure ensure long-term stability;

    ● Non-nuclear safe sensing technology;

    ● Rugged, fully encapsulated construction​;

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    Product Advantages

    ● Extended operating temperature range, up to 200 °C​;

    ● Withstands high process pressures (up to 500 bar, customizable)​;

    ● Maintain productivity and minimizing operational costs for stable performance ​;

    ● Enables long-term data acquisition and tracking​;

    ● Outputs three parameters simultaneously: density, temperature and velocity;

    ● Highly accurate and reliable in harsh environments;

    ● Minimal maintenance requirements compared to other methods;

    Applications

    Some production lines or industrial plants could benefit from the inline paint density meter:​

     Coating manufacturing plants for density monitoring in resin-pigment mixing tanks and color paste blending lines;​

     Automotive coating plants for density measurement in electrophoretic paint circulation tanks and topcoat/clearcoat mixing tanks;​

     Furniture and woodworking enterprises for density monitoring in PU/UV wood paint blending tanks and pre-spray paint holding tanks;​

     Printing and packaging plants for density measurement in printing ink mixing tanks and packaging substrate coating lines;​​

     Industrial equipment manufacturing plants for density monitoring in anti-corrosion primer mixing tanks and heavy-duty machinery topcoat preparation lines.

     Architectural coating plants for density detection in interior/exterior wall latex paint mixing tanks and textured coating preparation lines;

    ● Aerospace manufacturing plants for density monitoring in aircraft skin coating blending tanks and high-temperature component paint preparation lines;

    ● Coil coating plants for density measurement in continuous color steel plate coating slurry tanks and pre-coating adhesive mixing lines.

    More Applications? Consult Engineers Now

    Customization Options​

    I. Core Performance Customization​

    ● Measurement Accuracy and Range​
    Installation Method​
    Material​ of Wetted Parts

    II. Environment and Safety Customization​

    ● Explosion – Proof Certification​
    ● Temperature and Pressure Certification
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    About Lonnmeter

    Lonnmeter Group
    Lonnmeter is an professional technology company specialized in intelligent inline instruments over 15 years, having grown into a leading manufacturer of precise inline measuring instruments.
    Core Positioning & Product Series
    Lonnmeter focuses on the monitoring of key parameters in industrial processes and supply inline instruments likedensitometers, flowmeters, level meters (or level transmitters), viscometers and pressure transmitters to optimize industrial operation. These products enable real-time and accurate measurement of parameters such as flow rate, density, concentration, viscosity and pressure, and are widely suitable for the production process needs of multiple industries including food, chemical, cosmetics, energy, petrochemical, mining and metallury.

    Vision of Lonnmeter
    In 3-5 years, Lonnmeter aspires to become the leader of China's new-generation wireless intelligent instruments!
    In 5-10 years, Lonnmeter aspires to become China's leader in intelligent instruments and replace imported instruments with its own products!
    In 10-20 years, Lonnmeter aims to make its products available to more people around the world and become a global leader in new-generation intelligent instruments!
    Become the global leader of new-generation intelligent instruments.

    over 15 years experience

    15 + Years of Experience

    Over 15 years of experience in inline instruments manufacturing.

    production area warehouse

    6600 ㎡ Production Area

    Over 6000 ㎡ factory and warehouse

    400+staff

    400 + Staff

    Over 400 experienced staff work for Lonnmeter like R&D, sales, marketing team, etc.

    1000-1500 monthly output

    1000 -1500 Units / Month

    Monthly production of inline instruments is over 1000 per month. All products undergo strict quality inspection.

    Lonnmeter -- Manufacturer of Inline Instruments for Process Control
    Lonnmeter (hereinafter referred to as "the Group") has grown into a competitive manufacturer of inline instruments over the past 15 years. All inline instruments undergone strict quality inspection and calibration before shipment to customers.
    With joint efforts of R&D department and sales team, all inline instruments for process control escalade continuously and stand up to special and complex industrial conditions, solving numerous tricky problems and improving process efficiency while reducing costs.

    Company Advantages
    As a leading intelligent industrial instrument manufacturer, Lonnmeter delivers targeted, value-driven solutions for industrial process control with the following core strengths:

    Complimentary Operating Condition Analysis
    Our engineer team provides free professional analysis of medium properties, pressure/temperature ranges, bubble content and the like, offering data-backed recommendations to optimize parameter settings and avoid equipment selection risks.

    Customized Process Control Solutions
    Our portfolio is offered based on provided operating conditions and avoid all negative factors caused inaccurate measurements like flow rate, particle size and bubble content of measured media. Keep all inline instruments working in optimal status.

    Flexible OEM&ODM Services We provide tailored OEM and ODM services dedicated to inline industrial instruments. Our OEM services cover customizable packaging, operation manuals and brand logos, while ODM solutions support flexible customization of core materials, measurement parameters, product structures and functional configurations, fully meeting all your special application needs.

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