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Case Studies
Case Study 1: Enhancing productivity by integrating Liasotech's oil filtration system from NAS 8 to NAS 3 within 48 hours

Liasotech Machine Performance


A prominent Metal industry leader encountered significant challenges associated with machinery downtime, maintenance expenses, and environmental compliance due to inefficient oil filtration systems within their heavy machinery.

Problem Statement:
The existing oil filtration system (ELC Machine), suffered from insufficient removal of particles. This deficiency led to accelerated wear and tear of critical machinery components, resulting in frequent breakdowns, elevated maintenance costs, and increased production downtime. These issues severely impacted the plant's productivity and profitability.

Solution:
To address these challenges, Liasotech service engineer was assigned to assess the machinery, oil usage, and maintenance records. The specifications and requirements for an effective oil filtration system were determined through a meticulous evaluation process. Subsequently, the decision was made to integrate the Liasotech oil filtration system into the plant's maintenance strategy.

Results & Benefits:
Within just 48 hours of implementation, the impact was evident. Liasotech oil filtration system demonstrated remarkable performance improvements. The oil was rechecked, revealing a substantial enhancement in oil quality—specifically, the cleanliness rating improved from NAS 8 to NAS 3. This achievement underscored the effectiveness of the new filtration system in removing particulates and contaminants from the oil.

The plant officials expressed high satisfaction with the outcomes achieved. The successful implementation of Liasotech oil filtration system signifies a substantial reduction in potential machinery issues, leading to improved overall performance. This outcome not only enhances productivity and profitability but also demonstrates a commitment to environmental compliance through efficient oil filtration practices.
Case Study 2: Enhanced oil cleanliness from NAS 12 to NAS 4 led to reduced maintenance costs and minimized operational downtime.

Liasotech Machine Performance


An integrated steel producer with a greenfield manufacturing facility in India, confronted a series of hurdles including escalating maintenance expenses, frequent equipment failures, and diminished production efficiency due to contamination within its Hydraulic system.

Problem Statement:
The steel producer company is experiencing significant contamination issues within its manufacturing processes, impacting product quality and operational efficiency. The presence of contaminants poses a critical challenge, leading to increased production costs, compromised material integrity, and potential compliance risks. This problem demands urgent attention to identify the sources of contamination, implement effective mitigation strategies, and restore the company's ability to deliver high-quality steel products reliably and sustainably.
Acknowledging the necessity for a robust solution, plant authorities sought out Liasotech to implement effective filtration strategies and mitigate recurrent breakdowns.

Solution: 
To address the operational concerns, our dedicated service engineer was deployed to conduct a comprehensive assessment of the machinery, scrutinizing oil usage patterns and meticulously reviewing maintenance records.
After careful consideration and evaluation, the plant management opted to proceed with the installation of a Liasotech oil filtration system as an integral component of their proactive maintenance strategy. This decision was based on the reliability, efficiency, and tailored features of the Liasotech system, which aligned perfectly with the plant's specific needs and objectives for ensuring optimal performance and longevity of their machinery.

Results & Benefits:
The results of the oil filtration system implementation were quite significant. We managed to achieve a notable improvement, going from NAS 12 down to NAS 4 in a relatively short period. This shift signifies a substantial enhancement in oil cleanliness and quality.
Moreover, maintaining cleaner oil through this system led to a reduction in wear and tear on machinery components. This outcome directly converted into fewer equipment breakdowns, which, in turn, lowered maintenance costs.
Case Study 3: A Case Study in Contamination Mitigation and Operational Excellence - Rescuing Hydraulic Systems from Water Contamination in a Leading Steel Plant
The hydraulic system of an 8000 liters tank capacity in the Continuous Caster area of a leading steel plant encountered an unexpected issue of water ingress following a maintenance shutdown. This system is critical for the smooth operation of various processes in the steel plant.

Problem Statement:
During a routine online particle count visit, technicians discovered that the hydraulic oil was contaminated with water. This contamination posed a significant risk to the efficiency and functionality of the hydraulic system. The presence of water in the oil could lead to corrosion, reduced lubrication effectiveness, and potential damage to the system components, ultimately affecting the production output and safety of the plant.

Solution:
In response to the contamination issue, the technicians promptly connected a Vacuum Dehydrator Filtration machine to the hydraulic system. This equipment is specifically designed to remove contaminants, including water, from hydraulic fluids. By deploying the Vacuum Dehydrator Filtration machine, the technicians aimed to restore the hydraulic oil to its optimal condition and ensure the reliable performance of the system.

Results:
Through the utilization of the Vacuum Dehydrator Filtration machine, significant improvements were achieved in the quality of the hydraulic oil. Within a few days of operation, the highly contaminated oil was successfully treated, resulting in a notable reduction in contamination levels. Specifically, the oil's cleanliness rating improved from ISO 23/23/19 or NAS class 12+ to ISO 13/11/09 or NAS class 3. This substantial enhancement in oil quality indicates the effectiveness of the solution in addressing the contamination issue.

Benefits:
The successful treatment of the contaminated hydraulic oil offers several benefits to the steel plant. Firstly, it ensures the continued functionality and reliability of the hydraulic system, thereby minimizing the risk of operational disruptions and production downtime. Additionally, by maintaining clean hydraulic oil, the plant can prolong the lifespan of the system components, reducing the need for frequent maintenance and repair activities. Moreover, the improved oil quality enhances the overall efficiency and productivity of the steel plant, contributing to cost savings and operational excellence. Overall, the timely intervention and effective solution provided by the technicians demonstrate a proactive approach to maintenance and reliability management, reinforcing the plant's commitment to operational excellence and customer satisfaction.



You can see the oil samples and online particle count readings below:

Liasotech         Liasotech                  
Before Filtration                  After Filtration                    Initial Reading                              Final Reading


Case Study 4: Explore how did our hydraulic oil filtration system achieve results ranging from NAS 6 to NAS 0?

Liasotech Machine Performance

One of the largest steel bar manufacturing ventures in West Bengal, faced significant challenges in maintaining oil cleanliness levels below NAS 5, impacting overall system performance. After implementing the Liasotech Hydraulic Filtration System, the plant quickly achieved the desired results, restoring optimal functionality within few days.

Problems Statement:
The Metal Processing plant struggled with oil cleanliness, failing to achieve the required NAS 5 level in one of its hydraulic systems. Despite prolonged operation of the ELC filtration system, the plant consistently experienced elevated particle counts ranging from NAS 6 to 8, leading to severe oil contamination issues affecting critical servo valves.

Solutions:
To address the contamination concerns, the ELC filtration system was replaced with the advanced Liasotech Hydraulic oil filtration machine. Specifically, our team incorporated premium 3-micron absolute filter elements to effectively remove particulate contamination. 

Results & Benefits:
Remarkably, the oil cleanliness levels improved from NAS 6 to NAS 0 in just a few days following implementation. Furthermore, our service engineer provided comprehensive training  to the customer's team for ensuring optimal machine operation.

Benefit observed - 
Enhanced Oil Longevity: The filtration system extended the lifespan of the hydraulic oil, reducing the frequency of oil changes and associated costs.

Prolonged Machine Component Life: By maintaining cleaner oil, critical machine parts, notably servo valves, experienced extended operational life, mitigating the risk of premature failure.

Minimal Downtime: With nearly zero breakdowns due to oil contamination, the plant achieved enhanced operational continuity and efficiency.

Case Study 5: Liasotech's Oil Filtration System: A Game Changer for Plastic Industry

Liasotech conducted a successful oil cleaning demonstration at one of our customer's sites in the Plastic industry. This demonstration was crucial for the customer, who had previously faced multiple failures with other filtration companies in their attempts to clean hydraulic oil to the required standards.


Problem

Upon initial assessment, the hydraulic oil was tested and found to have a cleanliness level of NAS >12. This was significantly higher than the system's requirement of NAS 5. The excessive contamination in the hydraulic oil posed a serious risk to the machinery's performance and longevity, necessitating immediate and effective intervention.


Solution

In response to the customer's challenge, Liasotech deployed a skilled service engineer to the site for an initial assessment. Upon testing, it was confirmed that the hydraulic oil's cleanliness level was indeed at NAS 12. To address this, we installed a 12 LPM oil filtration machine equipped with 3-micron filters, all under the supervision of our service engineer. The filtration process commenced and continued non-stop for approximately 48 hours.


Result

The outcome of our intervention was highly successful. The filtration system reduced the oil's cleanliness level from NAS 12 to the desired NAS 5, meeting the stringent requirements of the customer's molding equipment. This significant improvement demonstrated the effectiveness of Liasotech’s technology and expertise in oil filtration.


Benefits

The successful filtration of the hydraulic oil brought multiple benefits to the customer. Firstly, achieving NAS 5 ensured the optimal performance and longevity of their equipment, reducing the risk of breakdowns and maintenance costs. Secondly, the customer, impressed by the results, expressed their interest in placing more orders. This not only solved their immediate problem but also paved the way for a long-term partnership with Liasotech, ensuring sustained equipment efficiency and reliability.


Case Study 6:How a Steel Plant achieved oil cleanliness from NAS 10 to NAS 5 within just 8 hours

The Problem

An integrated steel plant in Odisha faced a significant challenge in maintaining oil cleanliness within one of its hydraulic systems, which has a 3000 liter tank capacity. Despite operating an ELC filtration machine continuously 24/7, the plant consistently recorded high particle count readings at NAS 10 or higher. Such high contamination levels posed a risk to the efficiency and longevity of the hydraulic system, making it critical to find a more effective solution to ensure system reliability and performance.


The Solution

To address the contamination issue, the plant official decided to replace the ELC filtration machine with our Hydraulic Oil Filtration System (HOFS-16). The HOFS-16 system was equipped with our finest 3-micron absolute filter elements, specifically chosen to eliminate particulate contamination in the hydraulic system effectively.


The Results

Initial Particle Count Reading - 09:30AM

The initial measurement taken at 9:30 am showed a particle count of 20/19/11, equivalent to NAS Class 10. This level of contamination was considerably high and unsuitable for the hydraulic system's optimal performance.


Final Particle Count Reading - 05:30PM

After operating the HOFS-16 filtration system throughout the day, a subsequent particle count reading was taken at 5:30 pm. The reading showed a significantly reduced particle count of 15/14/09, equivalent to NAS Class 5. This indicated a much cleaner state of the hydraulic oil, well within acceptable levels for such systems.


The Benefits:

Implementing the HOFS-16 filtration system brought several advantages:


  • The significant reduction in particulate contamination improved the hydraulic system's reliability and operational efficiency.

  • Cleaner oil helps reduce wear and tear on system components, extending their lifespan.

  • With lower contamination levels, the frequency of maintenance and associated downtime decreases, leading to cost savings.

  • Maintaining cleaner oil enhances the overall performance of the hydraulic system, contributing to smoother operations and improved productivity for the steel plant.


Case Study 7: From Contaminated to Clean: Cement Industry’s Journey to NAS 5 Oil Purity

Problem Statement:

A cement plant in Andhra Pradesh had invested on an industrial oil filtration system from another manufacturer. Despite the cost and claimed benefits, they continued to face:

  • Failure to achieve the target NAS 5 cleanliness level, even after months of use.

  • Increased maintenance issues with hydraulic and lubrication systems.

  • Frequent machine downtimes and repairs.

This caused concern among the maintenance and operations teams, who had anticipated improved performance and cost efficiency.

Solution:

After understanding the challenges, we recommended our Advanced Oil Filtration System, designed specifically for critical equipment in dust-prone, high-temperature industries like cement.

Liasotech Oil Filtration Machine

Implementation Highlights:

  • Installed a customized filtration unit compatible with their systems.

  • Provided on-site technical support for installation and training.

  • Ran continuous filtration in offline mode, allowing uninterrupted plant operation.

  • Started regular oil analysis to track progress.

Results  

Within a short time frame of 48 hours of continuous filtration, the results were clear:

Liasotech Machine Result

  • Oil cleanliness improved from NAS 11 to NAS 4

  • No replacement of oil was required, which helped them recover losses from their earlier investment.

  • The maintenance team reported noticeable improvement in equipment reliability and smoother operation.
    Benefits:
    a) Achieved NAS 5 Cleanliness, improving oil and machine health.
    b) Reduced Maintenance Costs: Less component wear and longer oil life.
    c) Avoided Costly Oil Replacement.
    d)️ Enhanced Machine Uptime in a harsh cement plant environment.
    e) Restored Trust in oil filtration solutions after a disappointing experience with a prior vendor.

Case Study 8: A Ductile Iron Plant’s turnaround story- How one plant moved from Choked Valves to Smoother Operations

The Problem  

A ductile iron pipe manufacturer in West Bengal faced a serious challenge in their plant's hydraulic system.

The plant had already invested in a few number of oil filtration machines. But within just a few months, the Filtration Systems became ineffective, failing to deliver results. Concerned, they began searching for alternatives and that’s when they discovered Liasotech’s hydraulic oil filtration solutions through our website.

When we engaged with their maintenance team and reviewed their oil analysis reports, the root cause became clear:
Oil contamination ranging from NAS 9-12 in various systems, far above acceptable safety limits.

The plant officials explained that:

  • Valves in the hydraulic presses were choked frequently.
  • Movements became erratic : too slow, too fast, or stuck halfway.
  • On the finishing tables, pipes were getting damaged due to delayed valve responses.
  • Machine cycles were becoming inconsistent, creating production losses and quality concerns


The Solution

    Liasotech Oil Filtration System was then connected to their hydraulic press setup and the first baseline NAS reading was recorded: NAS 10.

    Liasotech Filtration System Test Report

    We ran continuous offline filtration for 12-14 hours. Once the cycle completed, the new oil report showed: Solid contamination reduced to NAS 5

    Liasotech Filtration System Test Report

     

    The Final Verdict:

    Production delays were minimised

    • Minimized production defects
    • Valve failures dropped to near zero
    • Oil life improved
    • The plant team said it best: "We finally feel we got what we were searching for."

    Case Study 9: Moisture Contamination reduced & Equipment Performance elevated with Liasotech Vacuum Dehydrator System!

    Problem: Moisture Contamination issue in a Power Generation Company in Gujarat  

    A leading power plant in Gujarat was facing recurring challenges due to moisture contamination in their hydraulic systems. Despite routine maintenance, they experienced:

    • Hydraulic failures that delayed production and delivery timelines.

    • System inefficiencies due to reduced lubrication properties

    The operations manager noted,

    “Even with regular filtration, we couldn’t remove the dissolved moisture and we kept seeing equipment wear.”

    Solution: Deploying Liasotech's Vacuum Dehydrator System (VDS)  

    While exploring advanced solutions, the team discovered Liasotech’s Vacuum Dehydration System (VDS) :: a system specifically engineered to remove free, emulsified, and dissolved water from hydraulic oils.

    Liasotech Vacuum Dehydrator Filtration System

    After installation, the results were immediate and measurable for 2 systems:

    Mill

    Oil Quality before VDS machine installation

    VDS Installation Date & Time

    VDS Machine Removal Date & Time

    Total Time taken for moisture removal

    Final Oil Quality

    A

    Moisture600 PPM

    26.03.25
    22:00 hours

    28.03.25
    8:00 hours

    34 hours

    Moisture90 PPM

    B

    Moisture157 PPM

    04.04.25
    16:00 hours

    05.04.25
    10:00 hours

    18 hours

    Moisture87 PPM

     

    In a few weeks:

    • Oil life extended by 2x, reducing the frequency of oil changes

    • Maintenance costs reduced by 30%

    • Reduced production delays and inefficiencies within 2-3 months

    Conclusion: The Experience of Owning VDS  

    The plant now runs with improved uptime, longer-lasting oil, and reduced wear on critical components.

    The officials at the plant mentioned "Installing the VDS wasn’t just a technical upgrade, it completely changed how we think about oil maintenance. And honestly, it paid for itself in just three months"

    Liasotech VDS isn’t just a filtration system, it’s a solution that helps plants control costs, improve reliability, and protect their bottom line.

    If you’re facing similar challenges, don’t wait for things to escalate, invest in a cost-effective solution before it’s too late, Contact us on 7643993545 today!


    Case Study 10: Gearbox failures prevented & Oil use cut: Liasotech’s solution for a Steel Plant!

    Problem
    In the Rolling Mill department of a leading steel manufacturing plant, the Steel Rolling Mill equipment were operating under harsh, dusty conditions. The gearboxes in this equipment were constantly exposed to fine dust, metal debris, and other contaminants that mixed with the gear oil.

    This contamination led to excessive wear on bearings and gear teeth, causing oil seals to break frequently and resulting in severe oil leakages. The frequent breakdown of seals and leakages forced the plant to top up large amounts of fresh oil, increasing the consumption of Gear Oil.

    As a result, the plant faced unexpected gearbox failures, unplanned downtime, and costly emergency maintenance interventions, disrupting raw material processing and production schedules.

    Solution
    To address these challenges, the plant partnered with Liasotech Private Limited to install Liasotech’s Gear Oil Filtration System across its critical gearboxes.

    The system continuously removes fine particles, metal debris, and moisture from the gear oil, ensuring it stays clean and within optimal operating conditions.

    The contamination level before and after installation of Liasotech’s Gear Oil Filtration


    By maintaining oil cleanliness, the system prevents abrasive wear that breaks oil seals and causes leakages.

    Engineered for dusty and high-load environments, Liasotech’s filtration solution operates continuously without interrupting production.

    Result

    After implementing Liasotech’s Gear Oil Filtration System, the steel plant experienced:

    • A dramatic drop in unexpected gearbox failures and unscheduled breakdowns.


    • Significantly fewer oil leakages and seal breakages, extending the life of oil seals.

    • Substantial savings on oil consumption costs due to reduced oil top-ups.


    • Improved gearbox performance, with overheating and friction issues largely eliminated.
    • A shift from emergency repairs to planned, predictive maintenance, boosting overall reliability and productivity.


    Key Takeaway

    Liasotech’s Gear Oil Filtration System is a proven solution for plants facing high dust loads and contamination risks.

    By protecting gearboxes from wear and oil degradation, the system helps prevent unexpected failures, reduces leakages and oil expenses, extends equipment life, ensuring smooth and uninterrupted operations.

    Case Study 11: Automotive Parts Manufacturer reduces downtime and costs with Advanced Filtration

    A prominent automotive parts manufacturer in Maharashtra, supplying parts to various OEMs relied on high-capital CNC machining lines for precision components. These lines are the backbone of their production and demand uninterrupted performance to meet tight delivery schedules and maintain product quality.

    The Challenge:
    Over time, the client’s maintenance team observed worrying trends:

    • Frequent unplanned stoppages of critical machining lines.

    • Rapid degradation of key components such as bearings, spindles etc.

    • Fine metal particles generated during machining were not being removed effectively by inline filters.

    • Fresh lube oil consumption was rising 20% above normal levels, adding to operational costs.

    These issues posed a serious threat to their high-value capex machinery, risking expensive repairs, unscheduled downtime, and loss of production hours.

    The Turning Point
    Realizing that frequent oil change-outs were not a sustainable solution, the client approached us with an urgent requirement:
     “How do we protect our critical assets, ensure oil cleanliness, and reduce moisture-related failures without constant oil replacement?”

    Our Solution
    After a thorough oil condition assessment and system study, we recommended installing our Liasotech Oil Filtration System which is designed to:

    • Continuously remove fine solid particles down to 3 microns.

    • Extend oil life by maintaining consistent cleanliness and moisture control.

    Implementation
    • We deployed a portable OFS to filter Hydraulic oil in CNC machines.
    • This machine, designed for continuous filtration, ensured production was not disrupted.
    • Operators were trained to monitor NAS cleanliness levels and moisture content periodically.

    The Results
    Within just months, the impact was measurable and remarkable:

    Parameter Before OFS After OFS Oil Cleanliness

    • (NAS) cleanliness: NAS 11 to NAS 5. 

    Liasotech

    The NAS 5 cleanliness level was achieved after filtering 1,000 litres of contaminated oil for 10 hours.

    • Oil Change Frequency: From every 4 - 12 months
    • Unplanned Downtime: Reduced by 70%
    • Annual Savings Achieved:
    • Fresh oil cost savings- 50%
    • Downtime cost savings: 45%

    Key Benefits Delivered

    • Protected high-value capex machinery from wear, rust, and unplanned failures.
    • Improved oil life by 3x, reducing waste and environmental impact.
    • Reduced maintenance interventions, freeing manpower for more productive tasks.
    • Enhanced overall production reliability, safeguarding delivery timelines.



    Case Study 12: Reducing Contamination in Lube Oil at a Chemical & Fertilizer Plant

    Problem:

    A chemical and fertilizer manufacturing plant faced major issues with its lube oil due to contamination:

    • Water ingress & emulsified lube oil: Water levels exceeded 1,000 PPM, causing emulsification.

    • High particle contamination: Particles lead to wear on bearings. The particle counter machine showed ISO- 21/19/14 or NAS 10.

    • Frequent oil changes & valve failures: Oil changed every 3–4 months instead of 12, leading to hydraulic system valves failing every 5 months.

    • Annual loss: Estimated ₹13–15 lakh due to maintenance, oil changes, and downtime.

    Solution:

    The plant installed 6 nos of Lube Oil Filtration System for removal of particle contamination and 1 no of Vacuum Dehydration System for water removal. Following steps were implemented as follows:

    • Installing Lube Oil Filtration System to remove particles with β3 ≥ 500 rating.

    • Vacuum Dehydrator Filtration System to eliminate free and dissolved water.

    • Regular Filtration: The process began by removing moisture over a 48-hour period, after which dedicated filtration machines were installed and operated for one week.

    • Oil Monitoring: Oil testing was done on scheduled interval to check moisture and cleanliness levels.

     Results (10 Days Later):

    • Water Content: Reduced from 1,000+ ppm to <100 ppm.

                                                                                

    Liasotech

    • Particle Cleanliness: Improved from 21/19/14 (NAS 10) to 16/13/9 (NAS 5)

    Liasotech


    • Oil Change Frequency: Increased to every 15-16 months
    • Valve Failures/Choking : No breakdown in 12 months since it's date of installation.
    • Manual Water Drain: Eliminated.
    • Annual Savings: ₹9–11 lakh.

    Conclusion:

    The filtration system successfully eliminated water and particulate contamination, resulting in zero gearbox failures, longer oil life, and cost savings. The plant achieved improved reliability and reduced maintenance by keeping oil clean.


    Case Study 13: Improving Steam Turbine Efficiency at Power Plant in Karnataka

    Background: Moisture contamination causes a sharp drop in turbine efficiency
    A Steam turbine manufacturing company in Karnataka operating a large-scale power plant utilising steam turbines for electricity generation faced recurring issues with turbine efficiency reductions, primarily due to contamination in the lubricating and hydraulic oils which affected turbine performance.

    The Issue: Increased downtime and higher maintenance costs due to moisture contamination.
    The plant reported a significant rise in turbine downtime and maintenance expenses over six months. Oil analysis revealed high levels of particulate contamination and moisture, leading to reduced performance of CapEx machinery.

    Our Solution: Vacuum Dehydrator: Effective moisture removal for enhanced operational efficiency!
    We installed our advanced Vacuum Dehydrator Filtration System designed to remove moisture and fine particulates from the turbine oils. This system ensures protecting the turbine components and enhancing operational efficiency.

    Results: Achieved 5–10% efficiency boost with a 60% reduction in moisture levels.
    Post-installation, the plant observed a marked reduction in moisture contamination levels in oil and a corresponding increase in turbine efficiency as the figure below shows:

    Liasotech

    The Moisture contamination reduced from 150PPM operating at an efficiency of 68% to 60PPM and improved the efficiency to 74%. This improvement not only enhances operational reliability but also supports sustainability by reducing energy wastage, extending oil life, and lowering the environmental impact of frequent oil replacements.

    Conclusion:

    Implementing our industrial oil filtration system significantly improved turbine performance, reduced downtime, and lowered maintenance costs for the company's power plant in Karnataka.