Stauff showcases a machine for the pre- and final assembly of cutting rings

(Werdohl, February 2016)

Stauff showcases a machine for the pre- and final assembly of cutting rings

With combined pressure and position control

Apart from a wide range of hydraulic tube connectors, Stauff will also be showcasing a machine for the pre- and final assembly of cutting rings at bauma.

The machine designated the SPR-PRC-POC is ideal for the assembly of cutting rings for extra-light, light and heavy series 24° tube connectors in compliance with ISO 8434-1 / DIN 2353 onto tube ends with outer diameters between 4 and 42 mm.

The combined pressure and position control is a particular feature of the Stauff assembly machine. It ensures that the pressure as well as the position are fixed and continuously monitored during the assembly process. Should there be any deviation by either of these two parameters from the entered values, the assembly process will be automatically stopped and a clear description of the fault will appear on the display.

The SPR-PRC-POC is a sensible investment for mechanical engineering companies and hydraulics plants, as it can be used for pre-assembly as well as for final assembly. When utilising the machine-assisted 50% pre-assembly, the fitter then has to finish the assembly by tightening the connector 180° beyond the pressure point. With final assembly, the cutting ring has already cut 100% into the tube and the fitter only has to tighten the union nut 30o from the pressure point. In both cases, the user can be certain that the cutting ring is assembled with maximum process reliability and reproducibility.

The new machine is thus extremely flexible. At the same time it runs with a high degree of automation and a high level of safety. RFID-supported tool detection helps to avoid incorrect operation. A built-in tool contact switch triggers automatic start of assembly and automatic tool wear detection guarantees continuously reproducible assembly results. A safety light curtain protects the operator if he needs to reach into the assembly area.

The internal PLC memory permits up to nine assembly programs to be stored. The clear text display constantly informs the operator of all key operating data – thereby ensuring transparency at the human-machine interface. At the same time, the short assembly cycles offer the very best prerequisites for excellent machine productivity.

Stauff at bauma: Hall A6, Stand 512

Image 1:

The Stauff cutting ring assembly machine with combined pressure and position control can be used for pre-assembly as well as for final assembly (Werksbild: 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