Overview
Most hydraulic failures start with contaminated oil. Fine particles wear pump surfaces and score valve spools, and water reduces lubrication and causes corrosion. A hydraulic oil filtration machine removes these contaminants so the oil can stay in service longer.
TOFM hydraulic oil filtration machines are built on the same platform as our transformer oil filtration machines, combining filtration to 1 micron or finer with vacuum dehydration below 0.1 mbar. We build them as mobile units that serve several machines in a plant, or as stationary units for a central hydraulic system.
How does hydraulic oil filtration work?
Features and advantages
Better cleaning
Staged filtration and vacuum dehydration in one machine.
Mobile option
Trolley-mounted units move between presses, mills and power packs.
Industrial automation
Controls and interlocks where specified, so operators can run the unit safely.
Service and spare parts
Filter elements and spares supplied by TOFM.
Applications
- Hydraulic presses
- Injection moulding machines
- Rolling mills and steel plant hydraulics
- Cement plant hydraulics
- Earth-moving and mining equipment
- Hydraulic power packs
- Flushing of new hydraulic systems
Industries served
- Steel and metals
- Cement
- Heavy engineering
- Plastics processing
- Mining and construction equipment
- Oil and gas
Technical specifications
| Machine type | Hydraulic oil filtration machine |
|---|---|
| Overall capacity range (TOFM oil filtration machines) | 50 LPH to 20,000 LPH |
| Configuration | Mobile (trolley or skid) or stationary |
| Vacuum level | 760 mmHg (gauge), below 0.1 mbar absolute |
| Moisture content after treatment | 3 to 5 ppm |
| Filtration rating (micron) | 1 micron or finer (below 1 micron) |
| BDV after treatment | Up to 80 kV |
| Heating | Oil temperature controlled up to 65 °C; heater range ambient up to 150 °C |
| Power supply | 415 V, 3 phase, 50 Hz; other voltages and 60 Hz for export Typical |
| Controls | Industrial automation, PLC / HMI where specified |
| Integrated oil-water centrifuge | Optional |
| Minimum order quantity | 1 unit |
| Manufacturing lead time | Up to 60 to 70 days |
Specifications depend on the model and configuration. Request the datasheet for your capacity.
Frequently asked questions
Why filter hydraulic oil instead of replacing it?
Filtration removes particles and water so oil that is still chemically sound can stay in service, which cuts oil purchase and disposal. If oil tests show oxidation or depleted additives, the oil needs replacing; filtration does not restore additives.
How is a hydraulic oil filtration machine different from a transformer oil filtration machine?
Both remove water and particles. A transformer oil machine is designed to reach very low moisture and gas levels for insulating strength, while a hydraulic oil machine focuses on particle cleanliness and water removal to protect moving parts.
Can one machine serve several hydraulic systems?
Yes. A mobile TOFM unit can be moved between machines and connected to each reservoir in turn.
What is the lead time?
Manufacturing takes up to 60 to 70 days, and TOFM accepts orders from 1 unit.




