Air tightness testing instruments, commonly referred to as air tightness testers, are mainly used to inspect the waterproof sealing performance of products or components. They ensure that the tested object has no air or water leakage defects, so they are also called waterproof testing equipment, air leak detectors, or seal testers.
Air tightness testers are widely used on automated production lines in various industries, especially for waterproof testing and seal inspection of products in new energy, household appliances, automotive parts, consumer electronics, medical devices, security and lighting, valves and piping, and wire and connector sectors. Across these application fields, non-standard sealing fixtures and custom test adapters are frequently required, and Hansheng Automation provides precision machining services based on customer drawings and specified tolerances to support stable and repeatable testing conditions.
New energy: The new energy industry uses air tightness testers to check whether batteries and cells are properly sealed, because air or water leakage can lead to battery explosion or short circuits with serious consequences. Products requiring inspection include lithium batteries, cells, power batteries, charging piles, blade batteries, Kirin batteries, battery packs, motors, explosion-proof discs, battery modules, breathing valves, and explosion-proof valves.
Household appliances: This industry uses air tightness testers to inspect sealing in various water-using appliances, since water leakage may cause equipment damage or electric shock. Examples include electric toothbrushes, oral irrigators, water purifiers, air conditioner filters, beauty devices, humidifiers, kettles, insulated cups, juicers, dishwashers, shavers, electronic cigarettes, and aroma diffusers.
Automotive parts: Air tightness testing is used to check the sealing of automotive components, because oil or air leakage may affect vehicle performance or safety. Tested parts include car lights, motors, engine components, charging guns, vehicle cameras, automotive filters, tire pressure monitoring components, automotive sensors, die-cast parts, controllers, automotive pipelines, fuel tanks, and water tanks.
Consumer electronics: This sector uses air tightness testers to verify that smart devices and accessories are sealed, because water ingress can cause damage or functional failure. Products include mobile phones and waterproof components, tablets, smart bands, smart watches, action cameras, fingerprint locks, GPS cycling computers, Bluetooth earphones, Bluetooth speakers, and portable speakers.
Medical devices: Air tightness testing ensures that medical devices and instruments are properly sealed, since fluid leakage or blockage can affect treatment effectiveness or safety. Examples include puncture devices, blood pressure monitors, thermometers, urine bags, infusion bags, endoscopes, reagent packaging boxes, medicine bottles, and various infusion and oxygen tubes.
Security and lighting: This industry uses air tightness testers to check whether audio equipment, lamps, and cameras are sealed, because water ingress may cause failure or damage. Tested items include LED lights, outdoor cameras, reversing cameras, smart door locks, two-way radios, rugged phones, outdoor detectors, underwater alarms, outdoor lamps, and underwater lights.
Valves and piping: Air tightness testing is used to inspect valves, joints, and pipes for sealing, since gas or water leakage can affect pipeline integrity or safety. Examples include various valves such as globe valves, check valves, gas valves, pressure reducing valves, self-closing valves, cold flow valves, breathing valves, and safety valves, as well as water pumps, die-cast parts, pipes, and CNC precision-machined components.
Wire and connectors: This sector uses air tightness testers to check whether wires and connectors are sealed, because water ingress can damage them or cause functional failure. Tested items include electronic components, wires, wire harnesses, cables, connectors, and joints.
