Convenient helper for in-house oil supply

(Werdohl, October 2016)

Convenient helper for in-house oil supply

Stauff combines bypass filter with sturdy oil drum trolley

Mobile bypass filters – portable or on castors – are a convenient tool for preventive maintenance and service of hydraulic and lubricating oil systems. In addition to supporting main filtration in active operation and easing the filtration load e.g. during maintenance and after repairs, they also allow cleaning of the system by removing used oil while bypassing the permanently installed filters (images 1/2). They are also suitable for transferring tank contents into other containers as well as for filling systems (image 3). Even fresh oil is hardly ever fine filtered during or after production and processing (e.g. during filling and transferring and after transport in reconditioned drums) so that the high purity requirements of modern fluid technology components, which work with clearances in the micrometre range, can often not be achieved immediately. Even very small dirt particles can result in increased energy consumption through friction, in reduced system performance or in often costly standstills. This frequently leads to unscheduled oil changes or the replacing of components, which are sensitive to contamination.

For this reason, the manufacturers of certain system components (such as pumps, motors, valves and cylinders) always assume or recommend mandatory compliance with stipulated purity classes according to ISO 4406 (1999) or NAS 1638, whereby the most sensitive component is definitive for the design of the filtration concept.

Stauff, the fluid technology specialist based in Werdohl (Germany), in the type SMFS-U-DL-015-G now for the first time combines the actual filtration device including a high quality motor/pump unit (230 V 50 Hz or optionally 400 V 50 Hz) with a sturdy transport trolley, designed for standard channel drums with a volume of 200 litres and a weight of up to 250 kg (images 4/5). The high quality gear pump from a manufacturer with German development and production (image 6) features low level operating noise while also being suitable for viscous media thanks to the good suction behaviour. Generally, use with mineral oils and comparable media with a viscosity between 10 and 400 centistokes is approved.

This allows the company to expand its already extensive range of mobile filter solutions for nominal flow rates up to 110 litres per minute, which can also be equipped with integrated 8-channel particle counters on request (image 7).

The convenient helper for in-house oil supply is designed for a rated flow up to 15 litres per minute (depending on viscosity) and stands out on account of its robust design with a focus on a high load capacity and mobility with steerable heavy duty castors with rear brakes (image 8).

The filter elements are spin-on cartridges from the Stauff SFC-57/58 series with a variable micron rating between 3 and 125 micrometres. These are standard parts with a high availability, which can be purchased again at any time and at short notice. In combination with a visual clogging indicator, this ensures easy handling and servicing while allowing quick and uncomplicated replacement of the element without extended downtimes. Blank elements of type SFC-5700 are also available for pumping off only.

While a steel lance with an integrated stainless steel screen is used at the suction end as an upstream coarse filter with a grading of 200 micrometres, a filling nozzle at the dispensing end provides a high level of convenience and ensures precise dispensing of the required oil volumes (image 9).

Image 1:

Filter trolley supports operation of a hydraulically operated scrap baling press
(Courtesy of Walter Stauffenberg GmbH & Co. KG)

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Image 2:

Filter trolley supports operation of a hydraulically operated scrap baling press
(Courtesy of Walter Stauffenberg GmbH & Co. KG)

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Image 3:

Even large volumes of oil can be transferred and filtered within a very short time (here: 800 litre HLP-HM 68 in less than 7 minutes with 3 micrometres fibreglass)
(Courtesy of Walter Stauffenberg GmbH & Co. KG)

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Image 4:

The new transport trolley from Stauff is suitable for standard channel drums with a capacity of 200 litres
(Courtesy of Walter Stauffenberg GmbH & Co. KG)

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Image 5:

The new transport trolley from Stauff is suitable for standard channel drums with a capacity of 200 litres
(Courtesy of Walter Stauffenberg GmbH & Co. KG)

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Image 6:

Filter device with high quality motor/pump unit
(Courtesy of Walter Stauffenberg GmbH & Co. KG)

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Image 7:

Filter trolley with integrated particle counter and oil condition sensor in use on a plastic injection moulding machine
(Courtesy of Walter Stauffenberg GmbH & Co. KG)

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Image 8:

Maximum flexibility and safe operation thanks to steerable heavy duty castors with rear locking
(Courtesy of Walter Stauffenberg GmbH & Co. KG)

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Image 9:

Filling nozzle at the dispensing end for high level of convenience
(Courtesy of Walter Stauffenberg GmbH & Co. KG)

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Background Information

For more than 50 years now, the STAUFF Group with headquarters in Werdohl (Germany) has been successful in the development, manufacturing and distribution of pipework equipment and hydraulic components for mechanical and plant engineering as well as for service and industrial maintenance. The overall product range currently includes about 33,000 standard products as well as numerous special and system solutions according to customer requirements or based on own developments.

Wholly-owned manufacturing, sales and service facilities with more than 1,150 employees in 18 countries and a tight network of authorised distributors and representatives in all major industrial regions of the world ensure high presence and service paired with a maximum of availability.

In April 2015, VOSWINKEL was acquired and became a member of the STAUFF Group. With two sites located in Meinerzhagen (Germany) and 230 employees, VOSWINKEL is considered to be one of the world's five largest producers of quick release couplings for hydraulic systems. The long-established company also develops and produces a comprehensive range of hydraulic hose fittings – particularly for high-pressure applications – as well as custom-designed piping, primarily for construction and agricultural machinery as well as for commercial vehicles.

In 2015, the companies of the STAUFF Group have generated external sales revenue totalling EUR 230 Mio.

Press Contact

Mr Boris Mette
Head of Marketing Communications
Tel.: +49 (0) 2392 / 916-154
Fax: +49 (0) 2392 / 916-270154
E-Mail: b.mette@stauff.com