The role of condition monitoring in hydraulics, drive transmissions, and diesel farms

Condition monitoring solutions

Unlock uptime with smart condition monitoring. See issues early, protect equipment, and keep mining machines performing at their best.

Condition monitoring is an essential practice for equipment, providing operators with real-time insight into performance and helping prevent unexpected downtime. While HYDAC systems are designed for reliability, the value of condition monitoring is not unique to HYDAC — all equipment, including mobile machinery in mining operations, benefits from it. Proper filtration of hydraulic, lubrication and fuel circuits complements monitoring by keeping fluids clean and components protected.

Gregory Momsen, HYDAC Southern Africa Fluid Care Manager

Condition monitoring isn’t just a nice-to-have, it’s a fundamental part of protecting critical equipment. It gives operators the visibility they need to act before a small issue becomes a major failure.

Why condition monitoring matters

Without condition monitoring, problems can escalate unnoticed. From HYDAC’s experience, the most severe consequences occur when early warning signals are missed, often leading to component failure. By contrast, condition monitoring acts as a proactive alert system, detecting anomalies as they occur and allowing operators to take corrective action before major issues develop.

Think of it as an early warning system. It’s like having sensors constantly watching over your equipment, giving you alerts the moment something is outside the norm.

In practical terms, this means maintenance can remain largely planned and routine, but with the added advantage of identifying ad-hoc interventions when needed. For example, if particle levels rise beyond acceptable limits or water contamination occurs, the system will alert operators so maintenance can be carried out immediately, preventing component failure.

This is particularly important for diesel dispensing systems because injection pumps and injectors are highly sensitive to contaminated diesel. Correct filtration is a key factor in preventing these failures.

Integrating condition monitoring into system design

HYDAC recommends condition monitoring for all critical systems. While budget constraints may prevent some systems from having it installed initially, many can be retrofitted later without significant disruption. The compact hardware and flexible integration mean it works equally well on new systems and existing equipment, making it a versatile tool across mining, manufacturing, and other industries.

Even if a system doesn’t initially include condition monitoring, retrofitting is straightforward. It’s better to add it later than to risk unforeseen downtime or costly repairs.

For mobile assets in mining applications, adding condition monitoring can significantly extend engine and component life, as real-time alerts prevent small issues from escalating into system failures. Ensuring proper filtration alongside monitoring is essential for long-term reliability, especially for heavy-duty diesel consumers.

Key parameters monitored

The most important aspects of fluid condition include:

  • ISO 4406 cleanliness (particle count)
  • Water saturation
  • Electrical conductivity of oil
  • Dielectric strength of oil

Monitoring these parameters is critical because contaminated fluid is responsible for up to 80% of downtime and component failures. Unlike traditional inspections, which may only identify problems after visible signs emerge, condition monitoring allows real-time detection, giving operators an immediate warning when values fall outside acceptable limits.

Clean fluid is the cornerstone of system reliability. By monitoring particle levels, water content, and oil quality, operators can make informed decisions before a minor contamination turns into a costly component failure. Combined with proper filtration, this is highly effective.

Turning data into actionable insights

HYDAC condition monitoring systems provide clear, actionable information. Sensors can display data locally or transmit it remotely via the CMX cloud-based platform, allowing maintenance teams to track system health efficiently. Only critical criteria trigger warnings, ensuring operators are alerted to issues that truly matter.

Operators usually configure the system so that whenever a parameter falls outside acceptable limits, a warning is activated. The root cause can then be investigated, and appropriate corrective action taken — often before any failure occurs. This is especially valuable for fuel circuits and associated systems, where component replacement can be extremely costly.

Benefits for customers

The benefits of condition monitoring are tangible: increased uptime, longer component life, reduced unplanned maintenance costs, and improved overall reliability. Cost-to-benefit ratios often make the investment easy to justify in industries like mining, where downtime and equipment replacement are expensive. Proper filtration helps ensure these benefits are fully realised by preventing early component wear.

The main benefit is increased uptime and component life. When sensors are triggered, the issue can be addressed immediately, preventing expensive repairs and downtime.

Ensuring real-time monitoring and correct diesel dispensing filtration and maintenance helps maximise uptime and reduces costs across mining fleets, particularly for high-performance diesel engines in heavy mobile equipment.

Avoiding common mistakes

New users of condition monitoring sometimes expect to intervene constantly. However, once a system is commissioned and functioning correctly, minimal interaction is required. 

Consulting with HYDAC during implementation ensures the system is configured correctly, focusing on critical components and priorities, and avoiding unnecessary data overload.

Mistakes often occur when customers ignore early warnings or fail to set alarms on the most critical parameters. HYDAC recommends alarms only on essential criteria, preventing operators from being overwhelmed.

The future of condition monitoring

Condition monitoring is at the heart of Industry 4.0. As digitalisation and data analytics become increasingly integral to HYDAC systems, the ability to predict failures, optimise maintenance schedules, and monitor operations remotely will only grow. It transforms equipment from reactive setups into proactive, intelligent platforms.

Condition monitoring is central to the future of hydraulic systems. Digitalisation allows operators to make smarter decisions and extend component life like never before.

In essence, condition monitoring is like the dashboard warning lights on a car. 

Imagine driving a car with no alerts for low oil or engine issues — you would only notice a problem when it’s too late. Condition monitoring provides those critical early warnings, keeping systems running smoothly and avoiding costly failures. This applies equally to diesel consumers and electrically powered systems.

Finally, for large mobile fleets in mining operations, monitoring hydraulic and lubrication fluids as well as diesel dispensing systems can prevent unexpected breakdowns, extend component life, and reduce operational costs — proving the value of condition monitoring across all critical systems. Correct filtration in these systems ensures contaminants never compromise the equipment.

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