Annular_Load_Cell

Donut Load Cell | Annular Load Cell

Category: Tags: ,

Description

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.

Feature

  • 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.

Technical Specifications

Rated Capacity (RC) kN 0-12.5, 0-25, 0-35, 0-50, 0-100, 0-160, 0-200, 0-250, 0-300, 0-360, 0-540
Operating Modes Compression Only
Sensitivity Range mV/V 1.5mV/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 Resistance Ohms (nominal) 375 (750 for capacities above 40kN)
Output Resistance Ohms (nominal) 350 (700 for capacities above 40kN)
Insulation Resistance Megohms >5000 @ 50Vdc
Excitation Voltage Volts AC or DC 10 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 Capacity 150
Ultimate Overload % of Rated Capacity 300
Deflection @ Rated Capacity See dimension table
Fundamental Resonant Frequency* See dimension table
IP Rating (Environmental Protection) IP66
Weight (excluding cable) See dimension table
Fatigue Life 108 cycles typical (109 cycles on fatigue-rated version)
Cable Length (as standard) metres 2
Cable Type 4 core + screen, PVC sheath via cable gland
Construction Material Stainless Steel
Max Resolution 1 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 Dimension

Model Capacity (kN) ØA ØB ØC H Deflection Resonant Frequency (kHz) @ Zero Load Weight (kg)
CCG 12.5 6.1 10.4 25 12 0.01 25 0.05
CCG 25 8.2 14 25 12 0.01 33 0.06
CCG 35 10.2 17.7 32 12 0.01 31 0.1
CCG 50 12.2 21.3 38 15 0.02 21 0.2
CCG 100 16.3 29 48 20 0.025 19 0.3
CCG 160 20.3 36.3 50 20 0.025 24 0.3
CCG 200 22.3 40.4 55 25 0.03 20 0.4
CCG 250 24.3 43.5 60 25 0.03 20 0.5
CCG 300 27.3 49.6 63 25 0.03 22 0.5
CCG 360 30.5 54.9 76 30 0.035 17 0.9
CCG 540 36.5 65.5 88 50 0.06 10 2.0

Reviews

There are no reviews yet.

Be the first to review “Donut Load Cell | Annular Load Cell”

Your email address will not be published. Required fields are marked *

Related products