English 
Zhengfeng Road, Licheng District, Jinan City, Shandong Province,China
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Product Description
A press filter takes crumbs out of frying oil by building a cake instead of catching debris on a screen. The YL600 and YL800 run inline on a continuous frying line, discharge the spent cake dry, and let the line keep producing while the oil is being cleaned.
A screen filter holds crumbs on a mesh. The residue stays wet, turns brown and sticky, and a layer of free oil sits on top of it; the mesh blinds off and filtration slows within a shift. A press filter works the other way round. Filter paper and filter powder form a cake under positive pressure, and once that cake is built the oil passes through it rather than through a mesh. What leaves the machine is a dry cake that carries no free oil, so the unit empties cleanly and goes back into service without hand scraping.
Filtration happens while the line is producing, so the oil is cleaned continuously rather than between shifts. Residue is discharged automatically and nobody opens a hot chamber, which matters at the temperatures these lines run at: the working oil is around 120 to 200 C.
That suits any process where the coating comes off in the oil. Battered and breaded meat and seafood, pasta, and snack pellets all shed solids into the fryer, and a donut line at high temperature with heavy flour pickup is the case this design was originally built around.
Parameter | YL800 | YL600 |
|---|---|---|
Filter plate size | 800 x 800 mm | 600 x 600 mm |
Power | 5.5 kW | 2 kW |
Oil capacity in circulation | ~2000 L | 1300 - 1500 L |
Working pressure | 0.1 MPa | 0.1 MPa |
Working noise | 80 dB | 80 dB |
Dimensions | 1900 x 1440 x 1900 mm | 1350 x 1110 x 1600 mm |
Weight | 850 kg | 500 kg |
Both run at 0.1 MPa working pressure and 80 dB, and both work the same oil temperature band. The difference is plate area, and therefore how much cake surface the oil has to pass through before the paper loads up.
Two consumables keep the cake forming. Each batch uses 0.8 m of filter paper and 0.3 to 0.4 kg of filter powder. Paper ships on 100 m rolls, 0.8 m wide for the YL800 and 0.6 m wide for the YL600. Together they hold back particles above 5 um, which is the fraction that darkens oil and carries the off-flavours that build up over a shift.
A powder mixing tank with feeder is available as an option (YLWL-1). It wets the powder into the oil ahead of the filter, which removes the manual scooping step and gives a more even cake across the plate.
The plate size decides it, not the model number. The YL600 carries a 600 x 600 mm plate, draws 2 kW and covers 1300 to 1500 L of oil in circulation, which fits a single fryer or a short line. The YL800 carries an 800 x 800 mm plate, draws 5.5 kW and handles around 2000 L, the top of the 1500 to 2000 L band these units are normally specified for. Two fryers sharing one filter usually land on the YL800.
Where the oil volume sits between the two, the deciding number is peak crumb load rather than average throughput. A heavily floured product will blind a smaller plate faster than a lightly coated one of the same volume.
Three things decide whether the unit drops in cleanly: where the oil return can re-enter the fryer, how much floor space the discharge side needs, and whether the powder mixing tank is included. Send the layout and the oil volume in circulation and we can confirm the model and the connection points before the order. If you are still specifying the fryer itself, our industrial frying machines page covers the rest of the line, and a recent fryer with in-line oil filtration shows how the filter sits in a working installation. For donut production specifically, the LZ donut fryer series is the usual partner to this unit.
