———— Industrial Oil Purification Plant

Industrial Oil Purification Plant & Vacuum Oil Purifiers

Remove water, mechanical impurities, sludge and fine particles from used oil, lubricating oil, hydraulic oil and industrial oil before reuse or further refining.

Request Technical Proposal View Process Flow

Water

Dehydration

Particles

Fine Filtration

Custom

Skid / Mobile

———— Applicable Feedstock

Industrial Oil Purification Plant

Oil Type Analysis

Configuration based on oil type, water content, impurity level and viscosity.

Customized Process

Heating, vacuum dehydration, coarse filtration and fine filtration can be combined.

Site-Fit Design

Equipment height, footprint, mobile base and voltage can be customized.

Upgrade Ready

Can be used as pretreatment before waste oil to diesel or base oil systems.

Send us your oil type, water content, impurity condition and target application. VBOLT will help you select a suitable oil filtration and purification solution.

Send Oil Information

———— Common Oil Problems

When Oil Contains Water, Sludge and Particles, Equipment Risk Increases

Industrial oil often becomes contaminated during long-term operation. Water, metal particles, mechanical impurities and sludge can reduce lubrication performance, block oil systems and increase maintenance costs.

Water contamination may cause emulsification, corrosion and unstable oil performance.

Solid particles and metal impurities may accelerate equipment wear.

Sludge and gum-like substances may block pipelines, valves and filters.

Unstable waste oil feedstock may affect downstream distillation or regeneration systems.

———— VBOLT Solution

Customized Oil Filtration & Purification System

VBOLT provides industrial oil filtration machines and vacuum oil purifiers according to different oil conditions. The system can be configured with heating, vacuum dehydration, impurity filtration, fine filtration, and automatic control.

Heating System

Reduces oil viscosity and improves the efficiency of dehydration and filtration, especially for high-viscosity used oil.

Vacuum Dehydration

Removes free water and part of dissolved water through vacuum separation, helping improve oil stability.

Multi-Stage Filtration

Coarse filtration and fine filtration can remove mechanical impurities, sludge and fine particles.

Control System

Electrical cabinet, temperature control, pump control and safety protection can be configured according to project needs.

Mobile or Skid Design

The equipment can be designed as a fixed skid-mounted unit or a mobile system with wheels.

EPC Support

For larger projects, VBOLT can support process design, equipment manufacturing, installation guidance and commissioning.

———— Working Principle

How the Oil Filtration Machine Works

The typical process includes oil heating, vacuum dehydration, coarse filtration, fine filtration, and clean oil discharge. The exact configuration depends on oil condition and customer target application.

Step 01

Oil Feeding

Contaminated oil is pumped into the system for continuous or batch treatment.

Step 02

Oil Heating

Heating reduces viscosity and makes water separation and filtration more efficient.

Step 03

Vacuum Dehydration

Water is evaporated and separated under vacuum conditions.

Step 04

Filtration

Coarse and fine filters remove sludge, particles and mechanical impurities.

Step 05

Clean Oil Output

Cleaner oil is discharged for reuse, storage or further refining.

———— Applicable Oil Types

Suitable for Multiple Industrial Oil Applications

Different oils require different filtration configurations. VBOLT can recommend the right system based on your oil properties and final purpose.

Used Engine Oil

Hydraulic Oil

Lubricating Oil

Transformer Oil

Gear Oil

Turbine Oil

Compressor Oil

Diesel / Fuel Oil

Waste Oil Pretreatment

Vegetable Oil Filtration

———— Technical Data

———— Filtration Result

What Can Be Improved After Filtration?

The final result depends on the oil type, contamination level, water content and selected filtration configuration. The table below shows typical improvement directions.

Item	Before Treatment	After Treatment	Purpose
Water Content	High / Emulsified	Significantly reduced	Improve oil stability
Mechanical Impurities	Visible particles and dirt	Reduced by filtration	Protect equipment
Sludge	Oil sludge and suspended matter	Lower sludge content	Reduce blockage risk
Transparency	Dark / turbid oil	Improved appearance	Better oil cleanliness
Downstream Feedstock	Unstable for regeneration	More stable pretreatment feed	Support distillation or refining

———— Product Models

Oil Filtration Machine Model Reference

The following models are for reference. Capacity, filtration accuracy, heating method, voltage, equipment height and structure can be customized according to customer site conditions.

Model	Capacity	Heating Method	Filtration Configuration	Structure
VBOLT-OF-500	500 L/h	Electric / Fuel / Steam	Coarse + Fine Filtration	Skid / Mobile
VBOLT-OF-1000	1000 L/h	Electric / Fuel / Steam	Vacuum + Multi-Stage Filtration	Skid / Mobile
VBOLT-OF-2000	2000 L/h	Electric / Fuel / Steam	Customized Filtration Accuracy	Skid / Mobile
VBOLT-OF-Custom	Customized	Customized	Customized	Customized

———— Machine Structure

Main Components of the Oil Filtration System

A complete oil filtration machine can include an oil pump, heater, vacuum separation tank, condenser, vacuum pump, filters, discharge pump, electrical cabinet, and mobile/skid-mounted frame.

01. Oil Feed Pump

Transfers dirty oil into the system.

02. Heater

Improves dehydration and filtration efficiency.

03. Vacuum Tank

Separates water under vacuum conditions.

04. Condenser

Condenses water vapor and light vapors.

05. Vacuum Pump

Maintains vacuum level for dehydration.

06. Coarse Filter

Removes larger particles and sludge.

07. Fine Filter

Removes smaller suspended particles.

08. Control Cabinet

Controls temperature, pumps, and safety systems.

———— Important Technical Clarification

Filtration Is Pretreatment, Not Chemical Conversion

Oil filtration can remove water, particles, mechanical impurities and part of sludge. However, filtration cannot change the molecular structure of waste oil.

For waste oil to diesel projects

If the customer wants to convert waste engine oil into diesel, oil filtration is only the pretreatment stage. Catalytic cracking and distillation separation are still required to obtain diesel-range fractions.

Filtration improves oil cleanliness and feedstock stability.

Catalytic cracking breaks heavy hydrocarbon molecules into lighter fractions.

Distillation separates target diesel fractions from mixed oil vapors.

VBOLT can provide both filtration pretreatment and complete waste oil regeneration systems.

———— Customized Engineering

Designed According to Your Oil Condition and Workshop Space

VBOLT can customize the equipment height, footprint, heating method, voltage, filtration accuracy and mobile structure according to the customer’s factory layout and project requirements.

Available Customization Options

Equipment height

Footprint and layout

Mobile wheel base

Skid-mounted frame

Electric heating

Diesel/gas heating

Steam heating

Voltage customization

Explosion-proof design

Filtration accuracy

Automatic control

Connection with refining system

———— Application Industries

Where the Oil Filtration Machine Can Be Used

The industrial oil purification equipment can be used for industrial oil maintenance, waste oil pretreatment, and oil recycling projects.

Machining Plants

Hydraulic Equipment Plants

Power Plants

Mining Maintenance Sites

Construction Machinery Service

Ship Repair Yards

Waste Oil Collection Stations

Lubricant Recycling Companies

Transformer Maintenance

Waste Oil Refining Projects

———— Why Choose VBOLT

More Than a Machine Supplier

VBOLT focuses on waste oil treatment, oil purification and regeneration systems. We can provide single machines, complete process systems and EPC support for larger industrial projects.

Oil Treatment Experience

Focused on waste oil purification, pretreatment and regeneration equipment.

Flexible Configuration

Different systems for water removal, impurity filtration and downstream refining.

Project-Based Design

Capacity, layout and heating method can be selected according to project conditions.

Complete System Support

Can connect filtration with catalytic cracking, distillation and base oil regeneration systems.

———— Technical FAQ

Frequently Asked Questions

Essential answers regarding industrial equipment supply boundaries and raw feedstock compatibility.

VBOLT oil filtration machines are designed for purifying various industrial oils, including hydraulic oil, lubricating oil, transformer oil, turbine oil, gear oil, and other mineral-based oils. The machine can effectively remove solid impurities, moisture, and other contaminants to restore oil performance.

VBOLT oil filtration machines can remove solid particles, dust, metal debris, sludge, and other mechanical impurities from contaminated oil. According to different models, the equipment can also remove free water, dissolved water, and improve oil cleanliness for better equipment protection.

The filtration accuracy depends on the selected filter elements and application requirements. VBOLT machines can be configured with different precision filtration systems to meet various oil cleanliness requirements, including high-precision filtration for hydraulic systems and industrial equipment.

Yes. VBOLT provides different solutions for water removal according to customers’ needs. Standard filtration machines can remove free water, while vacuum dehydration models use vacuum separation technology to effectively remove dissolved water and improve oil insulation and stability.

A single-stage oil purifier is mainly designed for removing common oil impurities and moisture through filtration and dehydration processes. A double-stage oil purifier adds a higher-efficiency vacuum dehydration system, providing better performance for oils with higher water content and stricter purification requirements.

The purification time depends on the oil condition, contamination level, viscosity, and machine capacity. Under normal operating conditions, VBOLT oil filtration machines can continuously process contaminated oil until the required cleanliness level is achieved.

No. VBOLT oil filtration machines mainly use physical purification technologies, including filtration, dehydration, and vacuum separation. No chemical additives are required, which helps maintain the original properties of the oil and reduces operating costs.

By removing contaminants and restoring oil performance, VBOLT oil filtration machines help extend oil service life, reduce the frequency of oil replacement, decrease equipment wear, and lower maintenance costs. This allows customers to reuse valuable lubricating oil efficiently.

VBOLT provides complete technical support, including equipment selection, customized solutions, operation guidance, maintenance training, and spare parts supply. Our engineers provide professional assistance to ensure reliable operation and long-term performance of the filtration system.