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Tread and sidewall extrusions can be no more precise than the dies used to make them. When a new die is cut it should be well-centered, so the Operator has the flexibility to optimize the extruder set-up. After some time in service, die wear can be uneven so that certain areas along the profile get excessive rubber flow. This is a very costly waste of raw materials. Unbalanced flow can also disrupt the symmetry of the tread - a factor that influences cured tire uniformity and balance.
The Profilometer was developed as an automated, non-contact measurement system to displace checking with hand tools. The Profilometer is used to verify the accuracy of newly-cut dies. Its accuracy and speed helps reduce the number of die trials needed to approve a new die for production. Once in production, the Profilometer is used to check each run for overall quality, and to monitor for die wear.
Specifications Measurement Parameter Thickness Measurement Range Width Measurement Range
Car Tire Model 30mm
Gage Repeatability on Flat Surfaces <0.0125mm Gage Accuracy on Flat Surface Area Calculation Repeatability Area Calculation Accuracy
<0.060mm <.25% <.25%
Sample Interval (Width Resolution) 0.1mm Measurement Spot Size Dimensions (W x D x H)