Mesnac enhances efficiency with new automated testing machinery
25 Sep 2023
Chinese tire & rubber machinery major rolls out new developments at RubberTech China in Shanghai
Shanghai, China – At RubberTech China, Mesnac also introduced a new iteration of its tire uniformity and dynamic balance testing line Pub-3 PCR, claimed to offer “complete automation” in the online testing of various tire parameters.
Features include an “open uniformity and dynamic balance test station structure”, which is said to enhance operational efficiency and facilitate maintenance procedures.
The unit is also designed to mitigate the adverse effects of tire inflation axial force on the upper and lower spindle bearings, enhancing longevity and stability of the spindle.
Meanwhile, the rated power of the host part is lowered by 40%, resulting in a “substantial decrease” in the energy consumption of the equipment.
Furthermore, the uniformity load wheel device is built using lightweight materials, with the sensor load reduced by over 30% compared to the original material.
The load wheel also undergoes precise processing via specialised machine tools to achieve micron-level ‘mechanical runout’ – enhancing the sensor’s measurement range and accuracy.
The machine’s dynamic balance test station’s upper rim device has been redesigned to reduces the load on the upper rim motor and enhance overall mechanical stability.
The spindle employs direct drive rotary motor (DDR) technology, with the motor being directly positioned at the base of the spindle without any intermediary connections.
According to Mesnac, the DDR motor control enables dynamic balance to enhance the correction grabbing control between upper and lower spindles, resulting in a reduction of misalignment by 75% in comparison to the previous generation model.
Assuming the stability of the test data, Mesnac said, the spindle speed is decreased by 50%, the number of collect laps is decreased by 80%, and the test efficiency is enhanced by 20%.
The user operational experience has also been enhanced, as the calibration of the dynamic balancing equipment is not required subsequent to rim replacement.
Furthermore, the computer software is equipped with a feature for verifying “compensatory effects”, thereby eliminating the need for “redundant verification of repetitive accuracy”.
Mesnac said the machine’s calibration process has also been streamlined, reducing the original five-step procedure to a single step.
The modification has led to “a significant increase in efficiency”, with the new method being 80% more efficient compared to the conventional calibration approach.