In the race for international orders for painting applications, for example from the automotive industry, Eisenmann from Böblingen offers solutions according to individual requirements - not only in the field of painting. The company is also a system provider for surface technology, environmental technology, material flow automation and high-temperature process technology. Eisenmann has been advising customers and building energy-efficient and resource-saving systems for more than 65 years.

In the painting systems developed by Eisenmann, which are used in the automotive industry, among others, reliability is important not only for maximum process reliability but also for cleaning. Connection systems with edges and blind spots in hoses and pipes are a weak point here, as paint and varnish can build up. Even the slightest admixture of the previous paint leads to color distortions or irregular surfaces in the subsequent painting process. "This can be avoided with components that enable absolutely residue-free cleaning," explains Ralph Meier, Vice President Product Development & Technology at Eisenmann.

The connections of the Inoxline 1600 are used at Eisenmann in a compressed air range above 10 bar and must withstand pressures of up to around 20 bar. © Iron man

Eisenmann came across Eisele Pneumatics while searching for ideal connection components that are tailored to the requirements of painting processes. The Waiblingen-based company has specialized in high-quality all-metal push-in fittings for a wide range of applications for many decades. Eisenmann opted for the stainless steel connections from the Inoxline 1600 range. "We chose Eisele as our supplier because the dead space-free screw-in connections from the Inoxline series meet our requirements perfectly," says the expert from Eisenmann.

Connections without dead space

The screw fittings for dead space-free connections, originally developed as an exclusive customer solution, have long been available as sophisticated connections for the entire painting industry. They are made of chlorine-resistant stainless steel 1.4301/07. With the 1600 range, Eisele offers a dead space-free seal that can be installed quickly and is absolutely leak-proof. The connections are joined with hoses made of PA, PTFE or FEP. During assembly, the hose is simply inserted into the connection as far as it will go and tightened with just one turn of the tool. Thanks to the quick assembly and disassembly, the push-in fittings are a flexible alternative to classic piping. At the same time, the connections are insensitive to vibrations thanks to the high holding force of the screw connection. For Eisenmann's painting systems, the connection components are connected to a plastic block via a threaded sleeve in order to be able to optimally compress the seal. They are used in a compressed air range above 10 bar and must withstand pressures of up to around 20 bar. The components are designed by the manufacturer for a working pressure range of 0 to 25 bar and temperatures between 0 and 80 °C.