DeLaval 9JGJ-2×6 Milking Machine: Parameters Explained and Buying Points
The DeLaval 9JGJ-2×6 milking machine is a fairly common medium-sized milking unit on farms, belonging to the milking machine category within livestock and aquaculture machinery. When many farmers look up this machine, what they care about most is its basic parameters and whether it suits their own cattle farm. Below we explain it clearly from several aspects: the meaning of the model designation, how to read the parameters, and daily use and maintenance.
1. What does the "2×6" in the model mean
Looking at the model, the "9" in 9JGJ stands for the livestock machinery category, and "JGJ" generally refers to milking machinery; the "2×6" after it usually means 6 cow positions arranged on each side of the milking stalls, for a total of 12 milking positions. This double-row pit-type (herringbone) milking parlour has cows lined up on both sides being milked at the same time, so it can handle several cows at once, making it relatively suitable for medium-sized dairy farms with a herd of one or two hundred head. The exact number of stalls and the layout should still be based on the technical documents supplied by the manufacturer with the machine.
2. Which basic parameters to focus on
To judge whether a milking machine is suitable, you cannot just look at the name; the key is to check these parameters: first, the vacuum system, including the vacuum pump's extraction rate and working vacuum level, which determine whether milking runs smoothly and whether it is gentle on the teats; second, the pulsation system, where the pulsation frequency and pulsation ratio affect the milking rhythm, and generally stable pulsation and consistency across all cups are required; third, the number of milking cup groups and the teat cup liner specifications, which must match the size of your own herd; fourth, the pipeline layout and the capacity of the milk collection tank, which relate to how many cows can be handled per unit of time; fifth, the power and power supply requirements of the matching motor, and the farm must confirm that its own power supply conditions can meet them. These data are marked on the machine nameplate, the product certificate of conformity and the manual, so before buying you should ask the dealer for a complete parameter table and check them one by one; never rely only on a verbal introduction.
3. Key points for daily use and maintenance
Even the best equipment depends on proper operation. Before milking, wash the teats with clean water and dry them, and strip the first few squirts of milk to check whether the milk is normal; attach the cups gently to avoid air leaks; after milking, dip the teats promptly to reduce the risk of mastitis. After milking is finished each day, circulate-clean the cup groups, pipelines and milk collection tank according to the manual's procedure, and regularly check whether the vacuum lines leak and whether the pulsators work normally. Rubber teat cup liners are wearing parts and should be replaced in time once they are due or show ageing cracks, otherwise they will both slow down milking and easily injure the cows. Before the equipment is taken out of use for a long period, clean the system thoroughly and drain any water left in the pipes.
One more reminder: most milking machines fall within the scope of the agricultural machinery purchase subsidy catalogue, but subsidy standards and application procedures differ from place to place, so the specific details should be based on the information published by the local agricultural machinery authority for the current year. When buying, it is advisable to confirm that the product has a formal promotion and appraisal certificate and comprehensive after-sales service, and to compare two or three dealers before placing an order, so that it is more worry-free in use.