How Long Should Liners Last?
The key to good milking hygiene, udder comfort and milking efficiency requires regular replacement of liners. Liners are exposed to a variety of influences which affect the liner compound and performance.
- Mechanical stress through continuous flexing and stretching. An average liner will pulsate two million times during its useful life.
- Liners are subjected to milk fat, chemicals such as detergents, sanitisers, milkstone removers, ozone, ultra violet light exposure and variable temperatures, causing crazing and cracking which has an adverse effect on cleaning. Cracks and crazing can harbour bacteria.
No liners should be expected to last an entire year, the continuous flexing eventually wears the liner surface, making cleaning more difficult. In a market where excessive bacteria counts can lead to grading and significant loss of income, it is recommended by dairy experts around the world that liners should be replaced after 2500 milkings.
Important: To minimise chances of grading, liners should be replaced after 2500 milkings.
Use the table below to calculate the number of milking days your liner will last for.
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