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Full Automatic Leaking Detector with Infrared Sensor

leakage detector on extrusion blow molding production line

This leakage detector uses an ultrasonic sensor to continuously monitor reheat stretch-blow molding machines to detect costly compressed-air leaks from the machine or bottles being blown. This leakage detector “listens” for the ultrasonic signals generated by high-pressure air leaks. It listens for leaky bottles, tracks them through the machine, and triggers an eject mechanism when they reach the correct position. Leaky bottles occur mainly when recycled PET is used.

This leakage detector also monitors and graphs routine background ultrasonic noise. If that noise reaches an unacceptable level, This leakage detector can trigger an alarm. The upgraded version also displays the relative severity of air leaks and where they are located on the blowing wheel.

JinJun leak tester is a cost effective way to monitor good or bad containers and eliminate bad containers on production lines. It uses the latest leak detection technology from Europe and U.S.A. to ensure high precision, stable performance and high proficiency. Our company has almost 20 years of experience in leakage detection, and owns a number of patents on leakage detection technology in China. Every JinJun machine is manufactured in strict accordance to the ISO 9001 and CE certificates, to guarantee high quality while serving every production sector.


Check this video to see how this leak detector works:

Features & Application

Leaking detector on extrusion blow molding production line with INfrared Sensor


1. High precision, can detect tiny leaks
2. Non-destructive detection, no harm to the products being tested
3. Better flexibility, one leak tester can test different products
4. PLC control, can store recipe for fast changeover
5. Colorful touch screen makes the operation fast and convenient
6. Can work independently or in line with the blow molding machine

Double heads precision leak tester, model: PG-2

The double-head precision leaking detector PG-2 adopts PLC controlling system which enhances the flexibility of function extensions. The man-machine interface touch screen makes the operation simple and fast.

Detecting speed: 900 to 2000 bottles per hour
Conveyor length: 1500 mm
Conveyor height adjustment: 750mm to 1200 mm
Machine dimensions: 1500*700*1650 mm

Application: leak tester, leakage detector, leakage testing machine