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Oil Skimmer

FRIESS oil skimmers remove floating oils and fats easily, quickly and reliably from all sorts of liquids.

Our oil skimmers remove oils and fats quickly and reliably. Use the FRIESS technology for liquids of all kinds – whether cooling lubricant, cooling water, degreasing agents or waste water.

 

What is the principle behind it?

The basis and at the same time the most important element is the oil collector tube. It generates a rotary motion on the surface of the bath, which sets the floating oil in motion. The oil is then picked up by the tube and transported to the oil skimmer. From there, it is in turn transferred to a waste oil collection tank. The result is a reliably oil-free liquid surface.

The advantages at a glance:

  • Use your process fluids longer!
  • Minimize your maintenance efforts: FRIESS oil skimmers are made of robust stainless steel and feature highly abrasion-resistant ceramic components.
  • We supply you with prefabricated systems for almost all applications, so you hardly have to bother with assembly.
  • Particularly practical: our systems automatically adjust to level fluctuations in the tank.
  • The freely floating oil collector tube guarantees that oil is removed over a large area.
Oil Skimmer

Our oil skimmer models

                           

Oil Skimmer S100

Specifically designed for very large basins and tanks with large fluctuation in fluid levels.
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FRIESS oil skimmers quickly and reliably remove floating oils and fats.
                           

Oil Skimmer W40

Suitable for tanks of various sizes with a width from 800 mm.
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Make use of the FRIESS oil skimmer technology for liquids of all kinds.
                           

Oil Skimmer W20

Suitable for very narrow tanks with a width of 500 - 1000 mm.
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The W20 oil skimmer is suitable for narrow tanks used in coolant lubricant reservoirs.
                           

Oil Skimmer 1U

Specifically designed for small emulsion tanks and small degreasing plants.
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Yağ Sıyırıcı Modeli 1U
                           

Oil Skimmer 1S

Specifically designed for use in small emulsion tanks, cooling water basins and pump sumps.
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Oil Skimmer Model 1S
                           

Oil Skimmer BS

Specifically designed for the removal of floating oils from small and narrow tanks.
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Compact belt skimmer, perfect for small tanks!
                           

Oil Skimmer WBS

Especially suitable for small, narrow tanks. Innovative belt skimmer for removing floating oils.
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Introducing the groundbreaking belt skimmer, designed to efficiently remove floating oils!

Application examples

Pre-treatment of Process Wastewater Using the S100 Oil Skimmer
Process Wastewater Pretreatment Using the S100 Oil Skimmer
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Belt skimmer WBS
What many people don’t realize is that a belt skimmer is just one design among many, and another type of skimmer might be the better choice.
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Der Ölskimmer 1U ist Speziell für kleine Emulsionsbehälter konzipiert
Oil Skimmers for CNC Milling Machines
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Cleaning and Reconditioning Coolants and other Metalworking Fluids
Cleaning Cooling Lubricants – Treating Coolant
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That’s why testing coolants is important
Why Coolant Testing Is Mandatory – Coolant Testing in Metalworking
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Microorganisms in Coolants Preventing Bacteria and Mold
Preventing Microbial Contamination in Coolants
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Photo 2: Oil Skimmer 1U at the end of the machine bed with an opening for the oil collector tube
FRIESS Oil Skimmer for Removing Oil from Coolant
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Oil separator with poor performance
Oil Skimmer 1U at SPAX to Ensure High Quality
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prepare cooling-lubricants
Prepare cooling lubricants
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Generous tubing placement through the fat layer on the surface.
Oil Skimmer in the food industry
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Oil skimmer S100 in operation.
Oil skimmer S100 in use by edible oil manufacturer
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FRIESS oil skimmers in use of the German Armed Forces
FRIESS oil skimmers in use of the German Armed Forces
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Oil film and foam accumulates at the oil barrier
The Oil Skimmer S 100 in use to prevent environmental damages
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High Tramp Oil Contamination in Cooling Water
High Tramp Oil Contamination in Cooling Water
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Oil-Skimmer-S100-function
Tramp oil on cooling water
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FRIESS Model W40 Oil Skimmer system on a bracket on the outside of the water tank
TRAMP OIL on CURTAIN WATER
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Oil-Skimmer-S100-function
FRIESS S 100 Oil Skimmer used in the Chemical Industry
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w40 Oil Skimmer for coolant
FRIESS Oil Skimmer remove Tramp Oil and Dirt Particles from Coolant
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Oil Skimmers in Biodiesel Production
FRIESS Oil Skimmers in Biodiesel Production
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Oil and Graphite Removal from cooling water with Oil Skimmer
Oil and Graphite Removal from cooling water with Oil Skimmer
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Oil Skimmer S100 2
Oil Skimmer Cleaning Method for Petroleum-derived Hydrocarbon
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Oil Skimmer is scraped from the hose
FRIESS S 100 Oil Skimmer with Oil Stripper
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Oil Skimmer S 100 with chute
Tramp Oil on Waste Water
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The thin fat layer is destroyed by the oil collector tube and fat sticks to the oil collector tube
Removal of floating fat from waste water in the food industry
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Mounting of oil skimmer S 100 with housing
Oil skimmer S 100 at coolant separation system
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Removal of Tramp Oil from Coolant
Removal of Tramp Oil from Coolant
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Removal of Tramp Oil with an Oil Skimmer from Cooling Water in a Steel Mill
Removal of Tramp Oil with an Oil Skimmer from Cooling Water in a Steel Mill
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Oil-Skimmer-Goundwater
REMOVAL OF OIL IN GROUNDWATER WITH OIL SKIMMER
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Mop-type-Oil-Skimmer
Replacement of a Floating Mop type Oil Skimmer with a FRIESS Model S 100 Oil Skimmer with Oil Collector Tube
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Oil Skimmer in the steel industry
FRIESS Oil Skimmer in the steel industry
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FRIESS Oil Skimmers applied to Area Drainage
FRIESS Oil Skimmers applied to Area Drainage
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Contents:

Oil Skimmer as a tube skimmer

Tube Skimmer: How It Works

In a tube skimmer, oil clings to a specially designed oleophilic tube, which is then stripped clean within the skimmer. The hollow, floating tube operates right at the critical point where oil meets the liquid surface. Welded into an endless loop, this oil collector tube continuously removes oil, no matter the size of the surface area. Whether you’re dealing with small tanks or massive cooling basins and ponds, the tube can be customized to the perfect length to keep your liquids free from tramp oil.

Applications & Industries

Wherever oil and grease build up and float on the surface of contaminated liquids, an oil skimmer provides the perfect solution for efficiently removing tramp oils and greases. A tube skimmer is designed to handle even the dirtiest environments or thickest oils without a hitch. Its versatility makes it perfect for a wide range of industries, including:

  • Steel mills and steel production
  • Metalworking and cooling lubricants
  • Parts washing systems
  • Wastewater treatment and pretreatment
  • Food production facilities
  • Aluminum manufacturing
  • Cooling water systems
  • And many more!

Video

Product features

Advantages:

  • High capacity for maximum efficiency
  • Capable of keeping the entire surface oil-free
  • Built with durable scrapers for long-lasting performance
  • Requires minimal maintenance, saving time and effort

Disadvantage:

  • Higher cost compared to other oil skimmer types

FRIESS oil skimmers are designed for direct installation in skimming tanks, oil separator tanks, and decant tanks. Whether you need a floating oil skimmer for large open-water skimming tanks or a compact belt oil skimmer for small coolant tanks, FRIESS provides the right solution. Our systems adapt automatically to tank level fluctuations – making them ideal for any skimming tank environment.

Oil Skimmer Parts & Accessories

FRIESS oil skimmer parts are designed for maximum durability and minimal maintenance. With just 6 essential spare parts per unit, our oil skimmer accessories are easy to source and replace. From replacement oil collector tubes to drive units and scrapers – all oil skimmer parts are available directly from FRIESS. Contact us to order oil skimmer accessories or request a parts list for your model.

Efficient Oil Removal with the Belt Skimmer

A belt skimmer operates using a motor, a drive roller, and a mount. The drive roller powers a flat, continuous skimmer belt. A loose pulley roller pulls the belt downward into the floating oil phase, where oil adheres to the belt’s surface. The lower section of the belt moves below the liquid surface, picking up the oil, which is then carried upward. Scrapers remove the oil as the belt returns to its cycle, ensuring clean and efficient oil removal.

Applications & Industries

Belt skimmers are widely used in cooling lubricant applications, especially in the metalworking industry. They are particularly popular for small coolant tanks found in smaller machine tools, where their compact design and capability make them ideal. With their relatively modest capacity, belt skimmers are perfect for removing the minimal amounts of tramp oil typically found in these tanks.

Occasionally, belt skimmers are also employed in smaller oil separators for oil removal. However, it’s crucial to consider the size of the separator, as belt skimmers are designed for small-scale applications and are not capable of covering larger areas effectively.

Product Features

Advantages:

  • Small, compact design, ideal for limited spaces
  • Cost-effective solution for oil removal
  • Can accommodate fluid level fluctuations, with larger models handling significant changes
  • Simple construction for easy operation and maintenance

Disadvantages:

  • Limited capacity, suitable only for small volumes of oil
  • Does not generate flow on the liquid surface, restricting oil collection efficiency
  • Can only reach a small surface area
  • Scrapers are prone to damage from particles in the liquid
  • Certain models may experience clogging due to sludge buildup in the drain

Oil Skimmer vs. Oil Separator

Though both oil skimmers and oil separators use the density difference between oil and water for removal, they operate differently. An oil skimmer continuously removes floating oils from a tank’s surface, whereas an oil separator captures oils and greases by using baffles to retain them within a dedicated tank.

How an Oil Separator Works: An oil separator consists of a tank through which contaminated liquid is pumped. As the liquid settles, the oil and grease rise to the surface. To enhance this process, coalescing packages are often installed to help the oil coalesce more effectively. A baffle system prevents the floating oil and grease from escaping the separator, ensuring that only clean liquid passes through, while the oil remains trapped at the surface.

Oil Skimmer: How It Works

An oil skimmer removes floating oil directly from the surface of a liquid. While both oil skimmers and oil separators share the goal of oil removal, they operate under different conditions.

In some cases, oil skimmers and oil separators can be combined for maximum efficiency. For example, an oil separator can settle the liquid when natural separation isn’t possible, while the oil skimmer removes the accumulated oil to prevent excessive buildup. This prevents oil from bypassing the separator’s baffles.

This method is utilized in our Skimmtelligent oil separators, which are designed for scenarios where the liquid is too turbulent for a skimmer to operate effectively or when the oil doesn’t naturally float to the surface.

Oil separators and oil skimmers in the UK

As a German manufacturer of oil skimmers and oil-water separation systems, we supply customers around the world, including many companies in the United States. Businesses searching for oil water separator suppliers in UK, industrial oil water separators in UK, or UK oil water separators often choose our solutions because of their proven performance, durability, and engineering quality. While our headquarters and manufacturing facilities are based in Germany, we support industrial customers, equipment manufacturers, and water treatment operators worldwide with customized oil-water separation systems and reliable international shipping.

FRIESS GmbH: 50 Years of Expertise in Oil Skimmer Manufacturing

Since 1972, FRIESS GmbH has been developing and producing high-quality oil skimmers in Germany, tailored to meet the diverse needs of various industries. We provide comprehensive services—from consulting and manufacturing to sales and, when needed, on-site assembly.

In addition to oil skimmers, we offer a range of solutions for oil-water separation, cooling lubricant maintenance, and oil purification. At FRIESS, we prioritize environmental protection while delivering cost-saving solutions, ensuring that sustainability and efficiency go hand in hand.

Buying an Oil Skimmer from FRIESS – It’s That Simple

Before purchasing an oil skimmer, we ask you to complete a short questionnaire that provides us with crucial details about your specific needs. We can send you this form as a PDF upon request. Key information includes:

  • Details about the substance to be removed, such as oil or grease, and the volume in liters/gallons per day.
  • Information about the liquid to be cleaned, whether it’s cooling water, wastewater, wash water, or coolant.
  • Key dimensions of the installation area, such as the length and width of the basin or the diameter, along with delivery head and level fluctuation data.

Typically, we deliver our oil skimmers within one week. Installation is simple and straightforward, requiring our assistance only in special cases.

As industrial oil water separator suppliers in the UK, FRIESS GmbH delivers directly to customers across all 50 states. Whether you’re searching for oil water separators near you or need a custom industrial oil water separator for your US facility – our team responds within 24 hours. We are German oil water separator manufacturers with direct US sales and support.

➦FAQs: frequently asked questions

What is an oil skimmer?

An oil skimmer is a device used to remove floating oils and greases from the surface of liquids. It is commonly used in metalworking fluid tanks, washing systems, process tanks, and wastewater treatment applications. The oil skimmer continuously collects floating tramp oil from the surface and removes it separately. This can help improve the quality of the process fluid, extend its service life, and reduce maintenance requirements.

How does an oil skimmer work?

An oil skimmer uses the different properties of oil and water or water-based fluids to remove floating tramp oil from the surface. Depending on the design, a rotating belt, tube, or disc collects the oil. The adhering oil is then removed from the skimming element (belt, tube or disc) by a scraper and discharged into a separate container. This process can operate continuously, helping to keep the process fluid clean and extend its service life.

What types of oil can an oil skimmer remove?

An oil skimmer can remove various types of tramp oil floating on the surface of a liquid. These include hydraulic oils, lubricating oils, machine oils, and other oils that do not mix with water. Oil skimmers are commonly used to remove tramp oils from metalworking fluids, washing fluids, and process water. The effectiveness of the oil removal depends on factors such as oil viscosity, temperature, fluid composition, and the type of oil skimmer used.

Which oil skimmer is suitable for metalworking fluids?

Oil skimmers for metalworking fluids should reliably remove floating tramp oils, such as hydraulic, bedway, and lubricating oils, while minimizing the loss of metalworking fluid. Belt, tube, and disc skimmers are commonly used for this purpose. The most suitable oil skimmer depends on factors such as tank size, oil contamination, accessibility, fluid level, and the required removal capacity. Selecting a skimmer that is properly matched to the application ensures efficient tramp oil removal and can help improve the quality and service life of the metalworking fluid.

What is the difference between an oil skimmer and an oil separator?

An oil skimmer removes only oil floating on the surface of a liquid. To do this, the oil is collected using a belt, hose, or disc and stripped off and discharged separately. An oil separator, on the other hand, separates both oil and water that are still mixed together and have not yet formed separate phases, as well as oil that is already floating on the surface. Oil skimmers are installed directly on the system, while oil separators are installed as separate systems next to the actual tank or basin. This enables oil separators to use gravity or coalescence to separate oil from water that does not rise to the surface on its own due to severe turbulence in the main system or extensive mixing caused by pumps or agitators. Which solution is more suitable depends on the application and the specific circumstances.

What size oil skimmer do I need?

The correct size of an oil skimmer depends on the specific application. Important factors include the size and geometry of the tank, the amount of tramp oil present, the required removal capacity, the fluid level, and the available installation space. A larger tank does not necessarily require a larger oil skimmer – it is more important to match the skimmer type and capacity to the actual oil load and operating conditions. For optimal sizing, the key application parameters should therefore be considered when selecting the oil skimmer.

What is the flow rate of an oil skimmer?

The removal capacity of an oil skimmer depends on its design, oil viscosity, oil layer thickness, and the specific operating conditions. FRIESS offers oil skimmers for a wide range of capacities: the compact 1U model, for example, removes 2 to 30 liters per hour, the W20 and W40 models up to 230 liters per hour, and the high-performance S100 tube skimmer up to 500 liters of oil per hour. This allows the skimmer capacity to be matched to the tank size and level of oil contamination.

In addition to cost savings, there are many other advantages associated with the use of FRIESS oil skimmers, magnetic filters, or electrostatic oil cleaning systems.

We would be happy to tell you what they are!