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Tuesday, June 3, 2025 7:08:03 AM

Selecting a 3 Axis Load Cell for Offset Force Application

28 days ago
#442 Quote
Hello, everyone,
My name is Callum Therrien, a student at Laval University in Canada. We're in the process of selecting a three-axis (X, Y, Z) force sensor for our lab experiments. Specifically, we require a sensor that can measure up to 2000 N in all three directions. I came across your 3 axis load cell, which seems ideal for our needs.
However, in our setup, the force is not applied directly at the sensor’s mounting point. Instead, it's exerted at the tip of a tool located approximately 150 mm away from the sensor (see attached image). While our application doesn’t require measuring the resulting moments (Mx, My, Mz), I’m concerned about potential mechanical overloading.
Could you let me know the maximum force "F" that can safely be applied at this 150 mm offset without risking damage to the load cell? I understand the direct capacity is 2000 N per axis, but does this still apply when the load is offset?
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28 days ago
#443 Quote
Callum wrote:
Hello, everyone,
My name is Callum Therrien, a student at Laval University in Canada. We're in the process of selecting a three-axis (X, Y, Z) force sensor for our lab experiments. Specifically, we require a sensor that can measure up to 2000 N in all three directions. I came across your 3 axis load cell, which seems ideal for our needs.
However, in our setup, the force is not applied directly at the sensor’s mounting point. Instead, it's exerted at the tip of a tool located approximately 150 mm away from the sensor (see attached image). While our application doesn’t require measuring the resulting moments (Mx, My, Mz), I’m concerned about potential mechanical overloading.
Could you let me know the maximum force "F" that can safely be applied at this 150 mm offset without risking damage to the load cell? I understand the direct capacity is 2000 N per axis, but does this still apply when the load is offset?

Hi Callum,
When applying force at a distance of 150 mm from the load cell, the safe limit is approximately 100 kg of force. Beyond this, there is a risk of damaging the sensor due to the induced bending moments. For your application, we recommend the ATO-LC-MA02 3 axis load cell, 2000N. You can find specifications here: https://www.ato.com/3-axis-load-cell-50n-to-5000n
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ATO.com