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The Right Coolant Oil Skimmer for the Machine Shop
How to Increase Oil Removal Rates In Steel Mills
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The use of an oil skimmer in the machine shop setting holds many benefits. Removing the oil from a machine coolant tank will initiate some esthetic benefits such as cutting down on the amount of smoke generated from the cutting tool coming into contact with oil laden coolant. 
“Rotten Egg” Smell in Coolant
When a machine is shut down for the weekend, oil has a chance to come to the surface of the coolant tank. Bacteria that are living in the coolant tank use up the dissolved oxygen in the coolant mix, a process that is sped up by having a layer of oil on the surface. This allows odor causing anaerobic bacteria to thrive, giving off that familiar “rotten egg” smell.
Contrary to popular belief the common types of bacteria found in metalworking fluids do not cause dermatitis. However, if the skin is broken, bacteria that normally inhabit the skin may enter and cause infection. The presence of phosphates and carbonates that increase alkalinity in the coolant, however, can cause dermatitis. These impurities are found in the water being used in the coolant mix.
Cost of Separating Oil from Coolant
Separating the oil from the coolant will also help reduce disposal costs. The cost of disposing of oil laden coolant is more expensive than disposing of oil. In fact, in some instances, companies may be able to re-use the oil elsewhere or sell it for recycling. Having oil free coolant can also extend its usefulness and effectiveness, reducing the expense on maintenance and coolant replacement. As the research on the different types of oil skimmers begins, a person will find that there are a variety of skimmers available to them. The most common types are the belt, disk, and tube skimmers. Each type of coolant skimmer has its advantages and disadvantages. 
Choosing the Correct Oil Skimmer
There are also many factors that need to be considered when choosing the correct type of oil skimmer to fit the appropriate application. Factors such as water level fluctuation, water temperature, pH level, the use of rust inhibitors, the amount of oil to be skimmed, quality, and cost, must all be considered when selecting an oil skimmer.
The use of rust inhibitors, high temperatures, and variable pH levels can affect the oil skimmer’s ability to pick up oil. Most skimmer manufacturers use a variety of materials for the skimming medium such as plastic, stainless steel, or poly blends to match the solution in which they will be used.
There are a multitude of oil skimmers on the market today. One of the most important things to be considered is the quality of the unit to be purchased. Points of interest should include construction materials, motor design, and the type of warranty that is offered. Is the skimmer housing made of metal or plastic? Is the motor fan-cooled? Does the motor use needle bearings or bronze bearings? How long does the warranty last and what does it cover? Most oil skimmers will perform as advertised, but remember the old adage that “you get what you pay for”.
To learn more about oil skimmers, please contact our experts at 440-543-7400 or visit our website: www.abanaki.com
How To Tell What Skimmer You Need For Your Machine Coolant
Industrial wastewater pits are treacherous. Nasty, bubbling, caustic black ooze swirling about in water is something nightmares are made of. The thought of having to remove all of that nasty seems like a daunting task and for some plant operators, it is. Keeping the wastewater clean is crucial for steel mills.
Contaminated water can result in sludge formation, producing environments for bacteria to grow and thrive, the production of rust and corrosion, and a list of other horrific things that will cause pain and misery to the equipment and application as a whole. Some facilities just need to keep the wastewater clean, while others need to keep it clean and reclaim the used oil. It’s a big job to take on and not all oil skimmers are cut out for the challenge.
Oil Removal Problems in Big Tanks
We had a customer contact us about a steel mill operation that didn’t seem to be running as it should. We visited the location to get a better understanding of what was going right or wrong. The company was using a competitor’s tube skimmer and this particular model was just not able to handle the grime and muck in a manner that was productive for the operators. The oil removal rates were low and recovery of the waste oil was not as efficient as they were hoping.
These are big tanks that need a big oil skimmer to tackle the jobs at hand, both cleaning the wastewater and a way to reclaim used oil. After going over the specifications of the tanks and getting a better understanding of what kind of results the plant operators were trying to achieve, we knew that the operation would benefit immensely from implementing a Model MB Oil Grabber.
Abanaki Model MB Oil Grabber
The Model MB utilizes continuous belts and wipers to remove up to 200 gallons of oil per hour from the fluid surface. The belts, operating on a motor and pulley system, run through contaminated liquid to pick up oil from the surface. After traveling over the head pulley, the belts pass through tandem wiper blades where oil is scraped off both sides of each belt and discharged. The tail pulleys have flanges which allow them to roll freely on the inside of the belts without becoming dislodged. These lower pulleys require no bearings and do not need to be fastened to the tank. If turbulent conditions exist, an optional tether and cage assembly prevents the tail pulleys from being dislodged.
The Model MB was designed for applications like this. When removal capacities are not being achieved in an application, you bring out the heavy-duty equipment. The Model MB is available in multiples of 2, 3, or 5 belts. Wastewater sumps, coolant sumps, outdoor lakes, ponds, or basins, underground tanks, food processing plants, parking lots, garages, service facilities, truck, locomotive, and other mobile equipment washing stations have all benefited from using the Model MB as a wastewater cleaning system.
This skimmer was built to last for years in harsh environments. It can handle temperatures up to 212°F and in pH levels ranging from 1-13. The belts are made up of corrosion-resistant steel, carbon steel, or a specially engineered polymer. The Model MB requires very little space in the tank or sump, easily mounts, and requires very little maintenance.
After replacing the former skimmers with the Model MB, the company reported the recovery rates are 4x higher than before.
To learn more about oil skimmers, please contact our experts at 440-543-7400 or visit our website: www.abanaki.com
Abanaki Model MB Oil Grabber In Operation
Abanaki Corporation Oil Skimming Division
17387 Munn Road
Chagrin Falls, OH 44023
Phone: (440) 543-7400
Email: skimmers@abanaki.com
Fax: (440) 543-7404
ISO 9001:2015 Certified Company
The Right Coolant Oil Skimmer for the Machine Shop | Abanaki
The Right Coolant Oil Skimmer for the Machine Shop
How to Increase Oil Removal Rates In Steel Mills | Abanaki
How to Increase Oil Removal Rates In Steel Mills