Portable cutting ring assembly machine

(Werdohl, February 2017)

Stauff presents its portable cutting ring assembly machine

Flexible, mobile and robust – the Stauff Press range has been extended

Stauff is offering a new assembly machine for processing smaller to medium quantities for the overhaul and repair of tube systems, which can be used as a mobile unit thanks to its battery power supply and transportation case with rollers. The machine is suitable for the pressure-controlled installation of cutting rings at tube ends up to an external diameter of 42 mm, and can carry out up to 200 installations per battery charge. 

The reason for the new development was the requirement to offer users in the hydraulics field the greatest possible flexibility, and to enable installation of cutting ring tube connections at the point of use, e.g. at the construction site. Installations often have to be carried out on-site under difficult spatial conditions. Using the machine facilitates the process for those conducting the installation. 

Two important characteristics create the conditions for this: Firstly, with the SPR-PRC-H-M designation, the machine is compact in design and there is space for it, along with accessories and other installation tools, in a transportation case with rollers that comes with it. The low weight of less than 7 kg (including battery) also facilitates deployment on-site. The machine can be used there as a manual tool or it can be operated on a tripod or with a table mounting.  

An external power supply is not required to operate the new Stauff Press machine, for as a standalone solution it takes its power from an efficient lithium-ion battery that can carry out more than 200 installation procedures without having to be charged in between depending on the diameter of the tubes. A replacement battery is included in the service case as standard. There is also room in the case for the appropriate charging unit. 

The machine, which Stauff will introduce for the first time at the Hanover trade fair, can pre-install cutting rings in the light series to metric tube ends with a diameter of 6 to 42 mm, and in the heavy series to tube ends from 6 to 38 mm. Installation is carried out pressure-controlled. The setting parameters required for the individual diameters are printed on the machine. 

As users require only a few seconds to change the tool and alter the installation parameters, tube connections of different sizes and series can be installed efficiently. This ensures constantly high process safety and reliability, which is characteristic of all machines in the Stauff Press range.  

Along with the development objective of ensuring the greatest possible flexibility, the suitability of the new machine for series installation is also important. This is also ensured by the fact that the SPR-PRC-H-M can usually carry out up to 200 installations with its own battery charge. In practice, however – based on Stauff’s experiences from the field test phase that was conducted – it is primarily used for the maintenance and servicing of tube systems at the point of use, or for the final installation of plant components with end customers, or it is carried in the service vehicles of maintenance service providers for hydraulics.

Image 1:

Compact and completely mobile: the new mobile installation machine in the Stauff pressing range works without an external supply
(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