Servo ST-120 Torque Tester with floating chuck design measuring the tamper evident break and strip torque of crimped aluminum caps
Due to the threaded design of the bottles/caps, the cap travels vertically as it rotates on the bottle threads. In order to measure thread break torque accurately, the vertical force (topload) must be controlled/minimized. One of the challenges in bottle cap torque testing and capping is the control of topload during the cap application/torque measurement cycle. Using our new floating chuck design allows the ST-120 to measure torque accurately even when rotating the cap multiple times. In this demo movie we programmed the ST-120 to measure the removal and strip peak torques in one cycle and display the results on the screen. The RS232 (USB/Ethernet also available) data output is configured for easy interfacing with the InfinityQS SPC software. To minimize product to product changeover time and variability, we also manufactured custom bases.
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ST-LAB Bottle Cap Torque Tester with Automated Cap Feeding
We often customize torque testers to fit customer specifications. One example is shown below, an ST-LAB with automated cap feeding mechanism. The system can automatically measure the release torque of the supplied caps, then immediately retorque them. The cap feeding mechanism is driven by a servo/stepper motor. Feeding, discharge and testing are fully automatic. Results can be automatically transferred to an SPC software through the built-in serial port.
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