
LYC-J Series Coalescing Dehydration Oil Filter Machine
Introduction:The LYC-J series coalescing dehydration oil filter machine integrates precision particle filtration and high-efficiency water removal functions. Adopting coalescence separation technology, it breaks oil-water emulsion and separates free and emulsified water from oil. This 5-stage filtration system is widely used for turbine oil, transformer oil and hydraulic lubricating oil purification, effectively improving oil cleanliness and extending service life of oil fluid and equipment.
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Product Introduction
The LYC-J Series Coalescing Dehydration Oil Filter Machine is a mobile oil purification equipment specially developed for oil liquid with water contamination. It is equipped with complete hydraulic filter elements and applies mature coalescence separation principle, which delivers far better dehydration performance than centrifugal dehydration methods. The whole unit contains five-stage filtration, combining particle removal and water separation in one system. It will not change the physical and chemical properties of oil during operation, featuring low energy consumption and stable continuous online operation capacity. The coalescing filter cartridge uses unique polar molecular structure to capture tiny water droplets, and the hydrophobic separation filter blocks water while allowing clean oil to pass through. With independent water storage tank and automatic drainage structure, it can steadily remove emulsified water, free water and solid impurities at the same time.
Working Principle

Contaminated oil mixed with solid particles and emulsified water first enters the pre-filter to trap large debris. Then the oil flows into the coalescing filter chamber. The hydrophilic coalescing media adsorb tiny water droplets, making small droplets collide and merge into larger drops. Under gravity, these big water droplets sink down into the water storage tank. The oil containing residual fine droplets continues to the separation filter chamber. The hydrophobic separation filter blocks water droplets on the outer surface while purified oil passes through the filter smoothly. Separated water accumulates in the tank; when reaching the preset liquid level, the drain valve opens to discharge water automatically. After water removal, the oil goes through secondary fine filters to remove remaining fine particles, and finally clean oil is output. The pressure gauges on the panel monitor the working condition of each filter element in real time.
Technical Specifications
| Item | Parameter |
|---|---|
| Model | LYC-25J-/**, LYC-50J-/, LYC-100J-*/, LYC-150J-/**, LYC-200J-/, LYC-400J-*/ |
| Rated Flow | 25 / 50 / 100 / 150 / 200 / 400 L/min |
| Working Temperature | 25 ~ 80℃ |
| Recommended Viscosity | 10 ~ 120 cSt |
| Rated Pressure | 0.6 MPa |
| Initial Pressure Loss | ≤0.1 MPa |
| Pre-filter Precision | 100 μm |
| 1st Stage Filtration Precision | 10, 20, 40 μm |
| 2nd Stage Filtration Precision | 3, 5, 10 μm |
| Power Supply | AC 380V, 3 Phase |
| Motor Power | 0.75 ~ 13 kW |
| Weight | 150 ~ 2860 kg |
Core Advantages
Powerful emulsion breaking capacity:
The coalescing separation technology can break stable oil-water emulsion and remove emulsified water, which is hard for ordinary filter carts.
Five-stage integrated purification:
Realizes pre-filtration, coalescence, separation and secondary fine filtration, removing water and solid contaminants in one pass.
No damage to oil properties:
It will not alter the physical and chemical characteristics of lubricating oil, transformer oil or turbine oil.
Low operation cost and energy saving:
Compared with vacuum oil purifiers and centrifugal dehydrators, it consumes less power and has lower maintenance cost.
Stable continuous online operation:
Suitable for running lubrication systems, no need to shut down the host equipment.
Dual protection of coalescing & hydrophobic cartridges:
Matching coalescing and separation filter elements ensure stable and long-lasting dehydration performance.
Mobile trolley design:
Equipped with heavy-duty casters for flexible transfer between different oil tanks and workshop stations.
Application Scenarios
Purification and dehydration of turbine oil and transformer oil
Dehydration and impurity filtration for hydraulic and lubrication oil systems
Online purification to improve overall cleanliness of hydraulic lubrication circuits
Water removal for gear oil and circulating lubricating oil in power plants, metallurgy and machinery workshops
Pre-treatment of oil before offline oil testing and regeneration
FAQ
Q1: What kind of water can this coalescing oil filter remove?
A1: It can remove free water and emulsified water inside oil, which is its biggest advantage over conventional filter carts that only filter solid particles.
Q2: What oil types are compatible with the LYC-J coalescing dehydrator?
A2: It works well for turbine oil, transformer oil, hydraulic oil and other mineral lubricating oil with viscosity from 10 cSt to 120 cSt.
Q3: Can this machine run online while the main equipment is working?
A3: Yes. It supports continuous bypass online filtration, helping maintain oil cleanliness without production shutdown.
Q4: How is the separated water discharged?
A4: Water is collected in the built-in water tank. When liquid level hits the setting value, the drain valve opens for automatic drainage.
Q5: How often do I need to replace coalescing and separation cartridges?
A5: The service life depends on water content and solid contamination level of incoming oil. You can judge replacement timing by reading pressure gauge rise.
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