milking machine


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milking machine

a machine for the milking of cows, occasionally sheep and rarely goats. It includes a vacuum pump, a pulsation system, clusters of teat cups, a rigid milk line, some flexible rubber tubes which connect the clusters to the milk line and a number of other components. Many of the components are replicated in the usual machine so that a number of cows can be milked at the same time. The vacuum applied directly to the teat sphincter effects milk removal from the teat, and an intermittent vacuum between the teat cup and the liner relieves the tendency to edema of the teat by squeezing it intermittently. The pressure used in the machine is critical, too great causes damage to the teat, too little causes incomplete milking. The art of good milking technique is to balance one against the other. See also automatic take-off.

milking machine claw
the metal handpiece to which are attached the four cups that, with their inflations, are used to milk the cow.
milking machine clean-in-place
cleaning system consisting of the circulation of cleaning and rinsing fluids through the milking machine without disassembling it.
milking machine cluster
claw plus cups, plus connecting rubber tubes.
high level milking machine
a machine in which the distance between the milk inlet to the milkline and the floor on which the cow is standing exceeds 4 feet.
milking machine liner slip
see teat cup liner slip.
low level milking machine
a machine in which the milk inlet to the milkline is below the level of the floor on which the cow is standing.
milking machine milking
extracting milk from the udder with a milking machine.
milking machine pulsation rate
number of pulsation cycles per minute; varies between machine manufacturers but average is 40 vacuum releases/min.
milking machine pulsation ratio
the ratio of the time during which the teat cup liner is more than half open to the time for which it is less than half open.
milking machine pulsation system
the intermittent increase in vacuum pressure in a milking machine mimics the application of sucking pressure by a sucking neonate by cyclic opening and closing of the teat cup liner; the intermittency is provided by the pulsator which consists of a servodiaphragm. The pulsation to a cluster may be alternate, when two teat cups move alternately with the other two, or simultaneous, when all four cups move at the same time.
milking machine pump capacity
air-moving capacity of the vacuum pump in a milking machine.
milking machine reverse milk flow
excessive changes in machine vacuum pressure cause reverse flow of milk for very brief periods, which allows contact of milk from infected quarters with the teat ends of uninfected quarters. The impact of this milk on a relaxed teat sphincter can effect the entry of infected milk.
milking machine stripping
see machine stripping.
milking machine teat cup liner
milking machine vacuum pressure
varies with design but average is 50 kPa (37.5 cm Hg).
milking machine vacuum reserve
governs vacuum stability, the protection against random acute fluctuations in vacuum pressure, the cause of milk flow reversal and elevation of the new mastitis infection rate.
References in periodicals archive ?
Traditional milking in a milk parlor, like what DeHaan uses, involves workers herding the cows into a big room in groups at a time, several times a day, and manually hooking them up to the milking machines.
The simulation results were successfully verified based on the milking machine in the test bed and on two other milking machines operating under practical conditions on farms.
Finally, we tried turning on the milking machine before attempting to get her back in the stand.
The development of information management systems to process data from a modern milking machine installation will lead to continuing increases in labor productivity, improvements in product quality and traceability, greater energy efficiency, and reduced environmental impact.
A double-8 parlor would have eight milking machine units.
The second system is where the cows are milked multiple times through a robotic milking machine, kept inside all year round on straw yards and demonstrate a high input and output system.
We believe the photo may have been taken at Wrexham Technical college in November 1953 The old University College , Aberystwyth in March 1969 Jeremy Ritchie, dairy lecturer at Llysfasi College, showing a milking machine to Ysgol Penbarras pupils at an open day in May 1998 Bangor Normal College's tennis team 1970-71
Inflators from a milking machine serve as the firewall's rubber grommets.
We've also spotted a nifty hand-powered milking machine that's made in India, and not sold in the United States, but looks like it would be a terrific tool for anyone who wants to reduce the time it takes to milk a cow or goats.
The exhibition features such innovations as: the hand operated water lifting device, bullock operated sprayer, compost aerator and leaf pruner, manual milking machine, bamboo lathe machine, solar mosquito destroyer, automatic food making machine and different varieties of agricultural produce.
When I was a child, I was woken every morning at 7am by the hum and buzz of a milking machine.
In 1959 when electricity came they had a milking machine installed.