MACHINERY | MIXERS
be unscrewed from the shaft in situ. Mixaco also showed an updated laboratory
mixer. First introduced around two years ago, it carries out heating and cooling in a single vessel. The single frame size accepts vessels of 5, 10, and 20 l capacity.
At Italy-based Battaggion, Sales Engineer
Above: The latest Mixaco hot mixer variant features a larger outlet
operator knows which tool to install. In the HMKM heating/cooling mixer range, models have been redesigned to create several standardised families of mixers. The discharge from the hot mixer has been enlarged –on one size variant it has been increased from 200mm to 300mm – to allow faster discharging and so reduced time between batches. The heating mixer is now available in a new height:diameter ratio of 1:1. According to Guido Brand, who is a sales and marketing specialist at Mixaco, this improves thermal efficiency. Inlet ports for injecting liquids into the mix are now located in the walls, rather than on the lid, which improves mixing as the liquid components go straight into the mix vortex. Meanwhile, on its horizontal mixers, blades can be changed more easily in the event of any damage. Rather than having to remove the entire shaft from the mixer, the damaged blade can now
Andrea Bassi highlights the turbomixer from group company Valtorta, which specialises in mixers for medium to low viscosity materials, typically PVC, masterbatch, and PTFE. He says the machine is recommended for producing seven batches per hour with the mixer filled to around 80% (around five batches for transparent PVC). Working faster, he says, carries the risk of burning the PVC. On the cooling mixer, he says blades have been optimised for different mixes and are easy to change.
Recycling solution Germany’s Kreyenborg recently installed a custom-manufactured mixing system for a custom- er needing to handle a wide range of regrinds. It says, due to the particular mixing requirements, this was a multi-faceted task. The customer needed to reuse different materials from different mills and shredders — and in various batch sizes in its production — so wanted a mixing system with a high level of flexibility, performance, precision, and reproducibility. At the same time, the unit had to have a small footprint and be easy to clean. The Kreyenborg mixing system includes two of the company’s established Universal Quick Mixers. These can be operated separately when smaller quantities are involved, or they can be connected and used together. For smaller quantities, this has
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IMAGE: PETER MAPLESTON
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