Mixing arm of Pucest®
Fig. 1 The Pucest® console arm. 
Fig. 2 Converted mixer with Pucest console arm and... Under the motto: Seven at a single stroke, Pucest Protect GmbH located in Elsenfeld (Germany) presented its new patent mixing arm. The product provides everything what a plant operating company may expect.
Every concrete worker is familiar with the pictures of a worn out mixing arm bearing and spring units with hardened concrete residues. As is well-known, all these may result in numerous problems.
Pan mixers – of any manufacture – always show the same weaknesses after a longer period of service life: starting with worn out arm bearings and leading to a rotor caked with concrete. Finally, it is a challenge for every locksmith to repair such a rotor. For sure, the cost manager will also be “happy” about the high invoice amount and the production stop involved simultaneously. Above all, there is the certainty that this will not have happened for the last time. As to put an end to that nuisance, Pucest has developed a new product. The patent mixing arm fits in any kind of pan mixer provided the rotor is weldable. For this kind of console arm various “add-on units” are available, such as, for example, outer blade, inner blade, pan wiper or an outer scraper.
Assembly is quite easy. For this purpose, mixing arms, spring elements, adjusting lever as well as the remaining parts are removed from the rotor. Afterwards the lead-throughs of the arms are closed by a plate. The adapter plates are welded on again. The console is fixed with only four screws (just as the spring unit). The arm and the mixing blades are mounted afterwards.
It takes just a little time for building an almost new mixer. And the advantages compared to the old version are absolutely convincing:
» An arm that can be turned into every direction and thus is able to achieve an optimum mixing result.
» No agitating arm bearing through which concrete may penetrate and tie up the springs.
» No springs that might break.
» As to speed up the removal process, a removal strip may be installed quite easily.
» Never more than 15 minutes are necessary to mount or remove these parts.
» As adjusting of the mixing arm and the blade is done with ease, it is possible for the machine operator to do these adjustments just in between his work.
» Mixing blades being optimally mounted stand for fewer cleaning work and a lower degree of wear at stirring unit and bottom.
In the meantime, Pucest has converted several mixers to the new systems with its own assembly team. The reference list is just stating satisfied customers coming from both family run companies and global corporations. We therefore await with interest the introduction of the universal rotor with appropriate drive – which is in the testing phase for the time being.
Marco Bauer
