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Guide for Milk Cream Electric Centrifugal Separator 50 L/H ESB-02

Guide for Milk Cream Manual Centrifugal Separator 50 L/H RZ-OPSWhen buying a milk separator check its completeness under section 3 and the correctness of filling-in counterfoils No. 1 (date of sale and the shop’s stamp).
A separator is examined and checked for completeness by a seller in the presence of a buyer.
The claims on package contents lack are accepted from the trade organizations only. No claims are accepted from consumers.
Prior to operating a separator, study this operation manual.
Due to further improvement of the design, the manufacturing plant reserves the right to implement separate changes to the separator design and appearance, so that the bought separator may differ from the one described and depicted here.
For separation, use fresh percolated milk (newly drawn or warmed-up to 30—40°C) with the fatness of 3...5%.
In case of claims for a separator failure or unsatisfactory operation of a separator electric motor, state the motor type indicated on its case.
After storing an electric separator in cold premises or after its transportation in winter — keep it indoor for warming up to room temperature.
A domestic electric separator is intended for separating unskimmed milk into cream and skim milk with simultaneous cleaning them from contaminations.
The manufacturing plant guarantees normal and long-term operation of an electric separator only if all the provisions of this manual are thoroughly performed and complied with.
Do not dry dishes at the temperature higher than +60°C since they may get deformed.
In cold seasons, if an electric separator was held at the temperature below 0 °C, it should be kept at the room temperature for 2…3 hours prior to connecting it to the mains.




Productivity, dm3/hour, not more than


Drum rotation speed, rpm



– 1400

Quantity of disks in a drum, pcs


Milk receiver capacity, dm3, not less than


Time for the drum to gain working regime, min


Time of electric separator continuous work till drum cleaning, min, not more than


Fat content in skim milk, %, not more than


Adjustment of volumetric ratios of cream to skim milk

from 1:4 to 1:10

Rated consumed power, W, not more than


Rated voltage, V


Current frequency, Hz


Overall dimensions, mm, not more than








Mass of electric separator, kg, not more than


Class of electric device under GOST 14087-88


Index of protection under GOST 17494-87


Specified life time, not less than, years



Electric drive, pc


Sealing ring, pcs


Drum, pcs


Special wrench, pcs


Input-output device, pcs


Adjusting wrench, pcs


Washer, pcs


}or two screws 

Cardboard box, pcs


Nut, pcs


Operation manual,pcs


Pin, pcs







4.1 Do not operate an electric separator if its drum is installed improperly or the separator is not fixed firmly.

4.2 Do not operate an electric separator if drum nut pos.41 (fig.3) is loose.

4.3 Do not remove dishes while a drum is rotating, do not stop a drum with a hand or with a napkin.

4.4 Do not connect an electric separator to mains without dishes and do not remove dishes or disassemble a separator without having completely disconnected it from mains (a cord plug should be unplugged from a socket).

4.5 Do not operate an electric separator if a drum brushes against dishes.



5.1 Unskimmed milk is separated to cream and skim milk in the following way: the milk flows to a float chamber through a milk receiver tap, then it gets to a drum base feeding tube and further into a disk holder. Thereafter the milk is distributed in inter-disk gaps through vertical channels of disk packs, where it is centrifugically divided into two fractions: cream and skim milk.

The cream, being a lighter fraction, moves towards the drum rotation axis and, as new portions aggregate, it ascends to a separating disk and runs into a milk receiver through an adjusting screw aperture, and then — into a receiving container.

Skim milk, being a heavier fraction, is centrifugically thrusted to the drum periphery. As new portions aggregate, it ascends into the drum mouth and pours through a slot into a skim milk receiver, and then — into a receiving container.

5.2 An electric separator (fig.1) consists of an electric drive (pos.1), a drum (pos.3) and an input-output device (pos.2).

5.2.1 An electric drive consists of plastic case 16, inside which there is a vertically installed electric motor 15 on resilient rubber supports (upper support 23 and lower support 18). The end of the electric motor output shaft has a slot for installing a drum. AN electric drive has adjusting screw 30 for adjusting a drum’s height position. The following items are installed onto an electric drive case: switch 9, rubber bushing 10 with cord 17.

5.2.2 A drum (fig.3) consists of base 49, sealing ring 48, disk holder 45, disk pack 44, separating disk 43 with adjusting screw 50, cap 42, nut 41.

5.2.3. An input-output device is intended for feeding milk into a drum and for cream and skim milk output. It consists of milk receiver 2 with tap 4, float chamer 5, float 6, cream receiver 7, skim milk receiver 8 (fig.1).




6.1. An electric separator is delivered to a consumer semi knocked-down in a cardboard box.

6.2. After unpacking:

- thoroughly wash milk dishes with hot 2% soda solution, rinse in clean water and rub dry with a towel.To avoid scratches and loss of gloss, do not use sand, powders, ash and other hard materials when washing dishes;

- disassemble the drum, wash its parts in hot 2% soda solution, rinse in clean hot water, dry and assembin the following order.

6.3. A drum (fig.4) is assembled in the following order: insert sealing ring 2 into drum base groove 1, then put disk holder 3 onto the feeding tube so that the drum base pin enters the disk holder aperture.

Put in turn all 4 disks onto the disk holder in the following order:


first a spiked disk, next — a smooth disk, and so on putting the spiked and smooth disks in turn.

The last disk should be spiked.

Then put on separating disk 5 and drum cap 6. A fixer with an adjusting screw on a separating disk should enter drum cap slot 6, and the point from the punching on the cylindrical part of the drum cap should be aligned with the slot on the drum base.





7.1. For separation, use only fresh percolated milk (newly drawn or warmed-up to 30-40°C) with the fatness of 3...5%.

7.2. In 1-2 minutes after turning on the electric drive, warm-up the milk path (the input-output device and the drum) by way of running at least 1 litre of water warmed up to 40…50°C through an electric separator. Keeping the separator turned on, close the tap and pour milk into the milk receiver, thereafter slowly open the tap and separate continuously for not more than 30 minutes. In case if a longer separation is necessary, disassemble the drum and wash it after each 30 minutes of operation.

ATTENTION! Quick opening of the tap may lead to the drum depressurization.

Continuous operation for more than 30 minutes leads to the electric engine breakdown.

7.3. The cream fatness is adjusted (fig.5) by way of turning adjusting screw 50 (fig. 3). To increase the cream fatness, turn the screw to 1,5 rotations from position “Aflush” (“Заподлицо”) with the surface of separating disk 43. To decrease the cream fatness, turn the screw to 5 rotations. If the screw hinders cap 42 removal when disassembling the drum, turn the screw to position “Aflush” (“Заподлицо”) with the separating disk surface. The screw is driven in and out with the adjusting wrench.

7.4. Upon finishing the separation, without stopping the separator, run at least 1 litre of skim milk through the drum for partial extraction of the cream remnants from it.


7.5. The separator should be stopped only after the cream and skim milk cease to run out of the receivers.

7.6. If during operation milk or water run through the draining aperture in the electric drive case top part, close the tap of milk receiver and after the cream and skim milk cease running out of the receiver — turn off the electric drive. Thereafter check the drum cap sealing (see section 10 “Possible failures and troubleshooting”).


ATTENTION! Do not close the drainage aperture in the electric drive case, since milk or water may get into the electric drive inner cavity, causing the electric engine breakdown.


7.7. The electric drive case is allowed to warm up 40°C higher than the ambient temperature during operation.


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