A cow liner, also known as a teat cup liner or inflation, is a critical component of hand-operated milking machines. It serves as the interface between the milking machine and the cow’s teats, playing a vital role in ensuring efficient and comfortable milking. The liners are typically made from flexible rubber or silicone materials that can conform to the shape of the teat while providing a secure seal to maintain vacuum pressure during milking.
Applications
 :- Creating a Vacuum Seal: The primary application is to form an airtight seal around each teat, which is essential for the vacuum to draw milk out.
 - Gentle Milk Extraction: The liner acts as a soft cushion that massages the teat as the vacuum fluctuates, simulating the action of a calf and promoting milk flow without causing discomfort or injury.
 - Preventing Air Leakage: A good seal from the liner prevents air from entering the system, maintaining the necessary vacuum level for efficient milking.
 - Protecting the Teat: The smooth, flexible surface of the liner protects the delicate teat skin from direct contact with the harder components of the milking machine.
 - Directing Milk Flow: The liner channels the milk from the teat into the milk collection system.
 
Usage
 :Interface with the Animal: It serves as the critical interface between the milking machine and the cow's teats, being the only component to come into direct contact with the animal's skin.
Milk Direction and Flow: It is used to channel the milk successfully from the teat into the rest of the milk collection system.