Hydraulic oil contamination is one of the most common – yet frequently overlooked – causes of machinery failure in the plastics manufacturing industry. Studies consistently show that around 80% of hydraulic component failures can be traced back to contamination, making it a problem no manufacturer can afford to ignore.
Contamination comes in several forms. Particulate contamination, such as dirt, metal shavings and wear debris, gradually damages pumps, valves and cylinders by causing abrasive wear on precision-machined surfaces. Water contamination is equally damaging, reducing the oil’s lubricating properties and accelerating corrosion within the system. Even chemical contamination through oxidation by-products like sludge and varnish can cause sensitive servo and proportional valves to stick, leading to quality defects and unplanned downtime.
The challenge is that contamination often builds up gradually, meaning the damage is already underway before symptoms become visible. By the time a machine overheats, filters block prematurely or valves begin sticking, the root cause has usually been present for weeks or even months.
Prevention starts with regular hydraulic oil analysis. Oil analysis acts as a health check for your hydraulic system, measuring particle counts against ISO 4406 cleanliness standards, detecting water levels in parts per million and identifying early signs of oxidation. With a baseline in place, any changes in oil condition can be spotted and addressed before they escalate into expensive repairs or lost production.
Proactive filtration is the next critical step. On-site filtration services can restore oil cleanliness to OEM-specified levels without the need to stop production, extending both oil life and component life simultaneously.
At OMS LubriTek, we help manufacturers across the UK implement structured oil management programmes that treat hydraulic oil as the critical machine asset it truly is – not a disposable commodity. If contamination is costing your business time and money, get in touch to find out how we can help.
