Oil Management & Purification
Centrifuge, vacuum dehydration or electrostatic cleaning, chosen from what your oil test shows.
Read moreEvery hour a machine stands still and every litre of oil thrown away costs your plant money. Ram Engineering started in Chennai in 1993 to clean industrial oil at the customer’s site, so machines keep running and good oil goes back into service.
Our filtration heats the oil while it is filtered. The heat thins the oil, so the centrifuge can take out water, sediment and carbon particles more easily. Where a test shows dissolved water, or the oil needs more, we add a vacuum dehydrator for water or an electrostatic cleaner for varnish.
We bring our own centrifuges, vacuum dehydrators, flushing rig and particle counter, and we work at plants across India from our base in Chennai.
Jobs completed so far in Tamil Nadu, Kerala, Karnataka, Andhra Pradesh, Telangana, Maharashtra, Odisha, West Bengal and Uttarakhand (Dehradun).
First we find out what is wrong with the oil: particles, water or varnish. Then we choose the machine: the centrifuge with its heater for water, sediment and carbon particles, a vacuum dehydrator for dissolved water and deeper drying, an electrostatic cleaner for varnish.
We flush hydraulic and lube oil systems after installation, repair or contamination, using our 1,200 litre-a-minute flushing rig and a separate 300 litre-a-minute pump. Cleanliness is measured with our particle counter against the class you need, typically NAS 1638 Class 6.
Regular oil tests show trouble before it stops a machine: rising particle counts, water in the oil or, for transformers, a falling breakdown voltage. Samples are tested at our NABL-accredited partner laboratory, and we explain what each result means and what to do next.
New and repaired pipelines are cleaned before start-up: degreasing, acid pickling and passivation, oil flushing and nitrogen purging. The work is done on site to a written procedure.
Our services
Centrifuge, vacuum dehydration or electrostatic cleaning, chosen from what your oil test shows.
Read moreOn-site multi-stage filtration that removes particles, water, sludge and oxidation by-products, so the oil stays in service.
Read moreFiltered to the NAS or ISO class your pumps and valves need, and checked with our particle counter.
Read moreGear and bearing oil cleaned and dried at your site, so it can go back into service.
Read moreWear particles, water and sludge taken out of gearbox oil, without draining the gearbox.
Read moreWater, sediment and early varnish taken out of turbine lube oil by centrifuge and electrostatic cleaning.
Read moreSludge, carbon and water taken out of quench oil, with the tests the quotation lists, before and after.
Read moreOur 500-litre sump cleaner takes the coolant and chips out of the machine. Whether the coolant is reused depends on its condition and on your plant’s acceptance, and you keep the chips to sell as scrap.
Read moreDirt, water and sludge taken out of dip tank oil, so that oil whose protection is still sound can keep working.
Read moreTake water and sediment out of furnace oil before it reaches the burner.
Read moreFiltration for base oils used in blending and manufacturing.
Read moreClean stored diesel for generators and fleets by removing water and particles.
Read moreFilter heat transfer oil to remove carbon and sludge from the circuit.
Read moreHot-oil filtration and dehydration until the oil reaches the breakdown voltage (BDV) your transformer needs, tested on site. Offered in Tamil Nadu only.
Read moreParticle filtration for process fluids and industrial chemicals, including solvents such as D60.
Read morePipeline system solutions
Scope review for new or serviced hydraulic and lube oil systems.
Read moreAcid pickling to remove weld oxide and scale, then passivation to restore corrosion resistance, on installed piping.
Read moreScale, deposits and fouling dissolved out of process pipelines by circulating the right chemical.
Read moreOil, grease and cutting fluid cleaned out of new and installed pipework before pickling, flushing or start-up; cleaning for oxygen service is a separate service.
Read moreGas lines flushed to remove moisture, sediment and particles, and oxygen tanks cleaned free of oil and grease.
Read moreCommissioning of pipelines, machines, heat exchangers and chillers at your plant, from the last checks and cleaning to start-up.
Read moreWe supply these; we are not the maker.
Rentals
Happy clients
Impressed by the level of detail in their flushing process. Flow rates, temperature control, and testing were all professionally managed. The results were flawless.
Plant In-Charge, Coimbatore
Their team took care of safety protocols and cleaned our tanks overnight to avoid disrupting production. Highly efficient and professional crew.
Facilities Manager, Cochin
They identified coolant leakage into our hydraulic oil through analysis. That early detection saved us a massive repair bill. We now test quarterly.
Technical Supervisor, Hyderabad
We’ve gone from reactive firefighting to proactive planning. Their predictive system has completely transformed our approach to maintenance and asset care.
Head of Maintenance, Tamil Nadu
Their thermography team was highly professional and detail-oriented. They identified loose terminal connections in our control panels that were not only affecting performance but were also a major safety risk. The report they provided helped us rectify issues within 24 hours.
Plant Safety Officer, Coimbatore
We had been spending a lot on vibration analysis, but it wasn’t catching certain subtle issues. The thermography scan showed overheating in gearboxes that seemed otherwise fine. The precision of thermal imaging has added an extra layer of confidence to our maintenance decisions.
Engineering Lead, Cochin
IoT-enabled vibration analysis helped us detect an undetected misalignment in one of our mission-critical gearboxes. If it had gone unnoticed, it would have caused a major outage. That single alert saved us a full week of lost production.
Plant Manager, India
We partnered with their team for a full overhaul of our process pipeline system, and the results were transformative. From the design stage to commissioning, every aspect was handled with precision. Our chemical plant now operates with better flow rates and reduced maintenance interruptions.
Head of Maintenance, Kerala
We had to meet our cleanliness requirements at an earlier time, which they achieved through their pipeline flushing service. The workforce was technically adequate, responsive and fully dedicated to quality. Commissioning was a smooth process without a problem.
Maintenance Head, Petrochemical Plant
As a pharma manufacturer, surface finish and hygiene are critical. The passivation work done on our stainless steel loops was thorough and compliant with every validation requirement. The team knew exactly what to do, and it saved us both time and headaches.
Quality Lead, Andhra Pradesh
We were preparing for a major turnaround and needed thorough pre-cleaning of our process pipelines. The team came in with a clear strategy, selected the right chemicals for our system materials, and executed the job flawlessly. Their reporting and before-after validation were top-class.
Maintenance Head, Andhra Pradesh
Pipeline hygiene is non-negotiable in our food-grade systems, and their degreasing service has set a new benchmark. The team executed everything with precision, ensuring zero contamination risk and leaving our lines thoroughly cleaned and inspection-ready.
Maintenance Head, Coimbatore
The change in the purity of the oil used before and after their use was incredible. Our system is less complicated, and we have reduced the cost of maintenance to just the minimum. There is quite some knowledge behind their team.
Plant Maintenance Head, Heavy Equipment Manufacturer
What impressed us most was their deep knowledge of oil behaviour in high-temperature quenching. The custom filtration setup they provided fit perfectly into our system and solved our recurring sludge problem.
Maintenance Head, heat-treatment shop
The high-efficiency filtration system made a visible difference in our plant’s performance. The oil stays clean longer, and unplanned breakdowns have been significantly reduced. This has saved us both time and money.
Maintenance Manager, castings plant
We struggled for years with contaminated cutting oil until this team stepped in. Their filtration solution not only reduced tool wear but also extended oil life beyond our expectations. Productivity is up and costs are down.
Production Manager, India
We were disposing of tonnes of rust preventive oil due to early degradation. Their on-site filtration saved us huge costs and reduced our waste output by nearly half. It’s both an economic and environmental win.
Gear manufacturer, Andhra Pradesh
The team conducted a full diagnostic, ran lab tests, and cleaned our entire furnace oil setup. Not only was the oil filtered, but the combustion chamber also operates more efficiently now. These are real professionals.
Technical Manager, Hyderabad
The filtered base oil now performs more consistently across our product line. This translates into better end-product quality and customer satisfaction. We consider them an integral part of our process now.
Production Chemist, Cochin
Our backup generators are mission-critical. Contaminated diesel was causing unplanned outages. The filtration process restored fuel clarity, and now our systems run with zero hiccups. We trust them completely.
Procurement Lead, Karnataka
Contaminants in our chemical mix were causing end-product failures. Their deep filtration not only salvaged the batch but also restored consistency to our entire production line.
Head of Production, India
Their team conducted detailed diagnostics before starting the filtration. Post-service, our power transmission loss reduced, and the oil lasted much longer.
Production Manager, Bengaluru
Yes. On site, across India, from Chennai. For jobs outside Chennai, travel and stay for our team are included in the quote. Transformer oil filtration is offered in Tamil Nadu only.
We start the work within 7 working days of receiving your purchase order and advance. A machine down, or a shutdown close? Phone +91 99400 49505: we are available 24/7.
Yes, for our industrial field services. The About page lists the services the certificate names and links the certificate (PDF).
Yes: a contract to maintain the centrifuge, electrostatic oil cleaner or LVDH machine you own, or a contract for regular filtration of your oil with our machine at your plant. Both are on the Services page under machine AMC.

Our team can come to your site to see the system and the oil, take a sample if needed and tell you what it needs.
Request an Assessment
Call or WhatsApp an engineer, or send the oil type, the volume and the problem. We reply with a method and anything else we need from you.
WhatsApp +91 99400 49505





























