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    Donut Load Cell | Annular Load Cell | Load Washer | CCG

    Makes bolt tension measuring easy in tight spaces
    CCG Low Profile Donut Load Cell / Annular Load Cell
    Lead Time
    Up to 360kN = 7 weeks
    540kN or bespoke ranges = 10-12 weeks
    Prices From
    (excl. VAT)
    Accelerated delivery available
    Quantity, OEM & educational discounts
    3D CAD models available

    At a Glance

    • Capacities: 0-12.5kN up to 0-540kN
    • Output: 1.5mV/V nominal
    • Environmental Protection: IP66
    • Accuracy: <±1.5%/RC typical
    • Custom-Sized Versions Available
    • Low Height & Compact – To easily fit where space is limited.
    • Optimum Performance Guaranteed – Its high-frequency response captures transient measurement fast.
    • Long-Life and Low Maintenance – With its rugged stainless steel construction.
    • Adapt It For Your Application – With our customisation service.
    • Submersible Versions Available – Perfect for marine and offshore applications.


    Applied Measurements CCG low profile donut load cell (also known as an annular load cell, force washer or load washer) has been designed for applications where bolt tension needs to be measured with a very low-profile transducer.  They are also used in cable tension measurement applications where they are mounted at the anchor point to provide continuous monitoring.

    The annular donut load cell design is inherently stiff which gives it an excellent frequency response allowing it to be used for transient measurements if required, while its rugged stainless steel construction and IP66 ingress protection rating ensure a long and maintenance-free life.

    Our annular donut load cell design is one that customised regularly to suit a multitude of applications, these include even lower height versions, the current record for which stands at 5mm, fully submersible IP68 versions and versions with inserts to allow the use of a single load cell with multiple sizes of bolt.  We have also constructed very high capacity versions, with 3000kN / 300 tonnes being the largest manufactured to date, however, it is possible for us to manufacture versions rated to 15MN / 1500 tonnes and above for extreme applications.

    Additionally, if you can allow the space for a taller load cell, the accuracy can be vastly improved by doubling the standard height.  So, if you need a special version to suit your application please call your Applied Measurements expert technical team who will be happy to discuss your required specification in detail, or use our contact form in the sidebar.

    Technical Specifications

    Rated Capacity (RC)kN0-12.5, 0-25, 0-35, 0-50, 0-100, 0-160, 0-200, 0-250, 0-300, 0-360, 0-540
    Operating ModesCompression Only
    Sensitivity RangemV/V1.5mV/V nominal (see note below)
    Zero Balance/Offset±%/Rated Output<5
    Non-Linearity±%/Rated Output<1.5 typical / 5 worst-case
    Hysteresis±%/Rated Output<1.5 typical / 5 worst-case
    Repeatability±%/Rated Output<±1% for identical mounting position, <±10% for altered mounting position (see note below)
    Temperature Effect on Zero±%/Rated Output/˚C<0.030
    Temperature Effect on Sensitivity±%/Rated Output/˚C<0.030
    Input ResistanceOhms (nominal)375 (750 for capacities above 40kN)
    Output ResistanceOhms (nominal)350 (700 for capacities above 40kN)
    Insulation ResistanceMegohms>5000 @ 50Vdc
    Excitation VoltageVolts AC or DC10 recommended (2-15 acceptable)
    Operating Temperature Range˚C-20 to +70
    Compensated Temperature Range˚C+10 to +60
    Storage Temperature Range˚C-20 to +70
    Safe Overload% of Rated Capacity150
    Ultimate Overload% of Rated Capacity300
    Deflection @ Rated CapacitySee dimension table
    Fundamental Resonant Frequency*See dimension table
    IP Rating (Environmental Protection)IP66
    Weight (excluding cable)See dimension table
    Fatigue Life108 cycles typical (109 cycles on fatigue-rated version)
    Cable Length (as standard)metres2
    Cable Type4 core + screen, PVC sheath via cable gland
    Construction MaterialStainless Steel
    Max Resolution1 part in 250,000 (with appropriate instrumentation)
    *The resonant frequency is calculated with the body of the load cell attached to a large plate, ensuring that only the sensing element oscillates: This is vital to achieve the highest natural frequency and subsequent frequency response.
    Note: The sensitivity range stated above is dependent on the selected mounting position. If the mounting position is maintained during operation, then the CCG will be repeatable and linear within the parameters specified above. If the mounting position is altered, then the sensitivity range may change by up to ±10%, as may repeatability.

    Product Dimensions

    CCG Annular Donut Load Cell Outline Drawing
    ModelCapacity (kN)ØAØBØCHDeflectionResonant Frequency (kHz) @ Zero LoadWeight (kg)

    All dimensions are in mm

    Wiring Details

    Red+ve excitation
    Blue-ve excitation
    Green+ve signal
    Yellow-ve signal
    ScreenTo ground - not connected to load cell body

    Ordering Codes & Options

    Core ProductCapacity (inc Engineering Units)Cable Length (m)Specials CodeExample Result


    CAD Model Files

    Our 3D models are provided in STEP format and can be viewed using FreeCAD. Other formats can be provided on request.

    The .zip file below contains a separate model for each product variant.

    Interested in this product? Send us an enquiry...

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