6YL-100 screw oil press

Main performance parameters of 6YL-100 screw oil press

Main technical parameters:

1. Squeezing shaft speed: 30-40 rpm

2. Gearbox rotation ratio: 15/40 * 15/55=1:9.78

3. Power supply: 7.5KW

4. External dimensions: length/width/height 1570 * 570 * 1320 (mm)

5. Single machine weight: approximately 480kg

One： Working principle and structure:

1. Working principle:

When the oil press is running, the processed material is carried as a hopper, and the oil enters the pressing chamber from the hopper. The spiral of the 

squeezed snail is pushed inward for pressing.

Due to the fact that the material embryo is in operation in the oil press chamber, under high pressure conditions in the chamber, there is a significant 

frictional resistance between the material embryo, the screw, and the chamber. This can cause friction between the material and the material, resulting in 

relative motion. On the other hand, the diameter of the root circle of the screw is gradually increasing. When the screw rotates, the thread allows the 

material embryo to move forward and flip outward. At the same time, the material layer near the surface of the screw thread rotates with the pressing axis, so that each particle of the material embryo in the pressing chamber does not move at the same speed and direction. And there is also relative motion 

between particles. The heat generated by friction also meets the necessary amount of heat for the oil extraction process, which helps to promote the 

thermal denaturation of proteins in the feed, destroy colloids, increase plasticity, and reduce the viscosity of oil, making it easy to extract oil and thus 

improving the oil extraction rate of the oil press.

2： Structure: The machine consists of five main parts: feeding hopper, gearbox, pressing chamber, pressing screw, and frame:

Two：Installation of the machine:

When installing the oil press, it is necessary to keep the body level on the solid foundation of the anchor bolts. The motor is installed on the back of the 

feeding hopper.

Three：Lubrication of the machine:

The oil press mainly uses two forms of lubrication: engine oil and butter. The refueling cycle is shown in the table below:

Four: Machine operation:

（1） Key points before starting up:

Before starting up, add 12 kilograms of engine oil to the gearbox

After installing the machine, add lubricating oil according to regulations, check whether all components are tightened, whether the operating handle and 

insertion plate are flexible

 Move the large pulley by hand to check if the machine is loose or stuck. If there are any abnormalities, they should be promptly eliminated

 Adjust the tightness of the belt, start the motor, and check if the direction of the groove wheel is consistent with the marked direction

After the preparation work is completed, loosen the locking nut to tighten the screw to the dead center, then retreat 3-4 turns, and move forward half a 

turn to ensure the gap between the screw and the cake outlet

（2） Power on:

Start the motor, start the machine, add 6% -8% moisture to the cake, pour it into the hopper, grind the pressing chamber, and do not feed too

aggressively, otherwise it may cause blockage of the pressing chamber and machine jamming accidents. Therefore, the material should be slowly

and evenly discharged. After the pressing chamber is polished and the cake is discharged normally, the material embryo can only be poured into

the hopper

After operation, observe the condition of the cake. If the cake does not come out, remove the screw screw for 1-2 more turns. If the cake still does not 

come out, stop the machine for inspection. Remember to avoid opening the belt car. After troubleshooting, perform the initial pressing work. Under 

normal operation, the cake is 1-2 millimeters thick, in the shape of tiles, not sticky when pinched by hand, smooth on the inside, wrinkled on the outside, 

and free of oil stains on the surface

Adjustment of cake thickness: Move the handle on the adjustment screw and rotate the adjusting bolt clockwise. If the bolt is facing outward, the cake will be thick, otherwise it will be thin. (Adjusting the bolt to left T165x6) The cone angle between the cake ring and the slag tip is different, with a change in 

cake thickness of 0.4-0.5 millimeters per revolution.

During the operation of the oil press, it is necessary to regularly check the oil and slag discharge. Normally, most of the oil flows out from the strip 

discharge and the first few sections of the circular discharge. If the cake is crushed into slag, it indicates that the raw material is too dry. If it is found that 

the cake is heating (releasing steam) and forming large patches, it indicates that the moisture content is too high. It is necessary to adjust the moisture 

content of the embryo material in a timely manner.

Slag discharge: When the slag is discharged into a fine flake shape, it indicates high moisture content. If it is powdered and contains foam, it indicates 

low moisture content. Excessive slag discharge in the garden is due to the failure of the compression nut to tighten the circular row. The compression nut 

should be tightened. If the moisture is appropriate, the strip row will not produce slag or there will be less slag discharge. A small amount of slag discharge from the circular row is also allowed. The moisture content of the preform directly affects the oil yield, so the moisture content of the preform should be 

controlled during pressing.

（3） Shutdown:

During normal shutdown, all the material blanks should be bent, and the screw should be repeatedly pushed back several times. The material in the squeezing chamber should be finished, and the cake should be placed to the end before stopping

If there is a power outage or sudden shutdown due to other accidents, cut off the power first, remove the discharge baffle, manually reverse the large 

pulley, and when the spindle rotates, remove the material embryo. Immediately push the screw shaft out of the pressing chamber (when it is difficult to 

manually reverse the large pulley, do not force it to avoid damaging the machine), and clean it. If it cannot be pulled out, loosen the pressing nut, remove 

the upper pressing cage, use a screwdriver to loosen the round rows one by one, clean them, and do not drive again without cleaning

5、 Disassembly and assembly of main components of the machine:

Disassembly and assembly methods for main components:

(1) The disassembly and assembly method of the squeezing cage (including round row and strip rib ring):

Rotate the screw shaft to extract the screw from the pressing chamber, then insert a 24 millimeter diameter iron rod into the hole of the cake end 

compression nut. Rotate counterclockwise to loosen the nut: loosen the 4 M16 connecting screws at both ends of the upper pressing cage, remove the 

12 M16 bolts connecting the upper and lower pressing cages, and remove the upper pressing cage to remove the circular row.

(2) The disassembly and assembly method of the strip:

Remove the rib cage and use one end of an iron rod to support one end of the rib cage from the side. Tap the other end with your hand to remove one 

rib cage, and the remaining ribs will automatically loosen

(3) Assembly method of strip:

Stand up the rows and circles, with the oil tank facing downwards (it is recommended to place a wooden board below), and arrange the rows neatly on the inner wall one by one. The end with a deep oil groove should face downwards, and the faces of the two deep oil grooves should not be placed facing each other. The last strip is inserted with a metal rod. If the strip is loose, iron sheets can be added between the strips to make them tightly adhere to the inner wall, until there is no protrusion on the inner wall when touched by hand.

(4) The packaging method of the squeezing cage:

Place the oil outlet surface of the strip ring facing the frame, and then place it in the circular row in sequence according to the circular row number. Bring 

out the oil groove face towards the frame. Then use a few fewer buckles on the compression nut to press against the round row, and then install the 

squeezing cage. (Both the upper and lower squeezing cages are made in pairs, and if replaced, they need to be replaced together.) Use the removed bolts 

to tighten them alternately one by one.