Content
The MDU-7 milking machine and its other modifications help farmers automatically milk a small number of cows. The equipment is portable. The MDU model range has minor differences in design. Each unit is designed for a certain number of cows.
Features of milking machines for MDU cows
For a small household, purchasing an expensive milking machine is not economically viable. Assembling equipment yourself is difficult. Additional knowledge and experience are required. In addition, homemade products do not always work effectively and injure the cow’s udder. The MRL model range was created to facilitate the work of owners of a small number of cattle. Thanks to the wheels, the unit is easy to transport. The equipment is compact, lightweight, and easy to maintain.
The most productive model is considered to be MDU 36.In households, they use machines where the letter abbreviation is marked with numbers from 2 to 8. Of the entire line, only the milking machine for cows MDU 5 is based on the dry principle of operation. Other models have a closed lubrication cycle. These devices are characterized by minimal engine oil consumption.
MDU installations consist of the following components:
- Electrical engine;
- vacuum type pump;
- starting device;
- fan or oil cooling system;
- collector;
- pressure regulator;
- pulsator
As additional equipment, each unit is equipped with hoses for transporting milk and a can. Containers are most often made of aluminum.
All MDU models are designed and operate according to the same principle:
- The pump creates a vacuum in the system, pumping milk out of the teat cup body and transporting it through hoses into the can.
- The pulsator periodically equalizes the pressure at the same frequency. Due to its changes, the rubber inserts inside the milking cups are compressed and unclenched. There is an imitation of sucking the nipples with the lips of a calf.
Mechanical milking does not injure the animal's udder. After filling the can with milk, the milkmaid pours it into a large container.
All MDU equipment is located on a durable steel frame made of lightweight profile. Before milking begins, the machine is placed on a horizontal, solid surface. In engines with a closed lubrication system, maintain the oil level above the red mark.
Milking machine MDU-2
MDU 2 equipment has several modifications. The devices in this line are designed for milking cows and goats.The most popular is the MDU 2a milking machine, reviews of which are often positive. Model 2a is designed for milking six cows. An aluminum can with a capacity of 19 liters is supplied from the factory to collect milk. If desired, you can order a stainless steel container with a capacity of 20 liters. The unit is fully assembled, after unpacking it is ready for use. Milking can be done near the cow or at a distance of up to 10 m.
Model 2b allows you to connect two cows at the same time. The device is equipped with a liquid ring pump with a 1.1 kW electric motor. Productivity – 20 cows per hour.
Model 2k is used for milking goats. One device is designed for 15 animals, but each animal is connected one by one.
Specifications
The MDU 2a installation has the following characteristics:
- electric motor power – 1.1 kW;
- connection to a 220 volt power supply;
- maximum productivity – 180 l/min;
- weight without packaging – 14 kg.
The manufacturer guarantees a service life of up to 10 years. The average cost is about 21 thousand rubles.
Instructions
When using the device for the first time, cows are accustomed to the operation of the engine. For several days in a row the installation is simply started in idle mode. When the cows are no longer frightened by the noise, they try to milk. The udder is thoroughly washed and massaged. Milking cups are placed on the nipples. The silicone suction cups should adhere tightly to the udder. After starting the engine, operating pressure will be created in the system. The start of milking can be easily determined by the flow of milk in the transparent hoses. At the end of milking, the motor is turned off.The pressure is released from the system so that the glasses can be easily removed. You cannot tear off the suckers by force, as the udder is easily injured.
The detailed process of using the milking machine is shown in the video:
Reviews of the milking machine MDU-2
Milking machine MDU-3
The manufacturer presented the milking machine for MDU 3 cows in three models with the letter abbreviations “b”, “c”, “TANDEM”. The first two models have similar characteristics. The most common reviews are about the MDU 3b milking machine, intended for ten heads of cattle. From the factory, the unit is equipped with an aluminum can with a capacity of 19 liters. Having made an additional payment, they order a stainless steel container of 20 or 25 liters separately. Unit 3b allows milking near the cow or at a distance of up to 20 m.
The MDU 3v milking machine has similar parameters, but the 3v-TANDEM milking machine provides milking for 20 cows. In addition, two animals can be connected to the equipment at the same time.
Specifications
Models MDU 3b and 3v have the following characteristics:
- electric motor power – 1.5 kW;
- The motor runs on 220 volt power;
- maximum productivity – 226 l/min;
- weight without packaging – 17.5 kg;
- Oil consumption – maximum 1.5 l/year.
The unit is equipped with an emergency valve. The average price is about 22,000 rubles.
Instructions
Working with MDU 3 devices is no different from using 2a models. The nuances of working with the milking machine are described in the manufacturer's instructions that come with the equipment.
Reviews of the milking machine MDU-3
Milking machine MDU-5
The MDU 5 milking machine is an air-cooled model. The unit is equipped with two fans. Equipped with MDU 5 aluminum can for 19 liters. Stainless steel containers of 20 and 25 liters are purchased separately. Milking takes place near the animal or at a distance of 5-10 m. The unit is designed for three cows. There is an analogue of the milking machine - model MDU 5k. The technical characteristics are similar, only the number of milking cups differs.
Specifications
The unit has the following characteristics:
- electric motor power – 1.5 kW;
- fans – 2 pieces;
- operation from a 220 volt power supply;
- the engine is equipped with a liquid protection valve;
- maximum productivity up to 200 l/min;
- electric motor rotor speed – 2850 rpm;
- weight without packaging – 15 kg.
The manufacturer guarantees a service life of up to 10 years, subject to the rules of use. The average cost of equipment is about 20 thousand rubles.
Instructions
For the MDU 5 milking machine, instructions are supplied by the manufacturer along with the equipment. The operating principle of an air-cooled unit is simple:
- A running motor pumps air out of the system. A vacuum forms inside the hose. The pressure difference in the milk tubes is created by vacuum pipes connected to the can lid.Additionally, vacuum is generated in the pulsator and hoses connected to the manifold and milking cups.
- Glasses are placed on the animal's nipples. The elastic insert clasps them due to the created vacuum.
- Between the insert and the wall of the glass there is a chamber where a vacuum is similarly created. When the pulsator starts to work, the vacuum inside the chamber at a certain frequency begins to be replaced by pressure equal to atmospheric pressure. The rubber insert compresses and unclenches, and with it the nipple. Milking begins.
The cessation of movement through the transparent milk hoses signals the completion of the process. The engine is turned off. After equalizing the pressure in the system, the glasses are removed from the cow's udder.
Reviews of the milking machine MDU-5
Milking machine for cows MDU-7
Model MDU 7 is designed for milking three cows. The unit is similarly equipped with a 19 liter aluminum can. For an additional payment, you can order a 20 liter stainless steel container from the manufacturer. A distinctive feature is the ability to work without a pulsator and with a pulsator. The quiet functionality of the motor does not scare the cows. Milking is carried out directly near the animal or at a distance of up to 10 m. In the second option, the use of an extended pipeline is required. The consumer is offered a choice of milking cups made of plastic or aluminum. The pulsator can be ordered as a push-pull or in pairs.
Specifications
The MDU 7 model has the following indicators:
- motor power – 1 kW;
- rotor speed – 1400 rpm;
- maximum productivity – 180 l/min;
- the presence of a valve to protect the electric motor from liquid;
- presence of fans;
- receiver volume 2 l;
- weight without packaging – 12.5 kg.
The equipment is designed for operation up to 10 years. Average price from 23,000 rubles.
Instructions
In terms of use, the MDU 7 milking machine is no different from its predecessors. A nuance can be considered the presence of fans for cooling the motor.
Reviews of the milking machine for cows MDU-7
Tatyana Ivanovna Kozhedub, 48 years old
To milk my two cows, I bought MDU 7. I don’t know any particular differences in the models, they were just advised by managers. I liked the purchase. I've been using it for over a year. The motor runs quietly. I always milk cows at a distance of 5-6 m. I have never damaged the udder with glasses.
Milking machine MDU-8
In terms of its performance, the MDU 8 device is identical to its predecessor MDU 7. However, the model is new and more improved. The equipment is mounted on a convenient trolley with wheels, allowing for transportation. In addition, the milking machine is equipped with a remote control to help control the operation. The unit is designed for three cows. The can comes from the factory in aluminum with a capacity of 19 liters, but can be purchased in stainless steel with a capacity of 20 liters.
The equipment works with and without a pulsator. Milking cups made of non-toxic plastic or aluminum. If desired, the pulsator can be ordered in pairs or push-pull.
Specifications
The MDU 8 milking unit has the following characteristics:
- motor power – 1 kW;
- rotor speed – 1400 rpm;
- there is a transparent receiver with a volume of 2 l;
- maximum productivity – 180 l/min;
- weight without packaging – 25 kg.
The MDU 8 unit is heavier than its predecessor due to the trolley, but it is easier to transport. Service life is about 10 years. The average price is 24,000 rubles.
Instructions
The MDU 8 device can be conveniently adapted to mechanical milking without a pulsator, since it resembles a manual process. When the cows get used to it and begin to calmly relate to what is happening, you can use the pulsator. All other operating rules are identical to models of previous modifications.
Reviews of the MDU-8 milking machine
Conclusion
Milking machine MDU-7 and 8 are ideal for owners of 2-3 cows. For larger herds, it is worth considering other models with higher productivity.
