The four-station air tightness testing equipment combines air tightness testing with automated testing; it can be customized according to customer requirements, and the internal testing module utilizes a leak detector independently developed by our company. The test bench is controlled by a PLC and features a touch screen display in Chinese for operation. It adopts pneumatic principles for rapid product clamping, uses wear-resistant silicone as the sealing component, and detects the internal pressure of the product through a high-precision pressure transmitter to ensure constant pressure and fluctuation. The equipment is equipped with automatic judgment and alarm functions