MACHINERY | ALTERNATIVE COMPOUNDERS
dosing units, a discharge unit, and a water bath to cool the strand downstream. This lab-size system will debut at the Chinaplas show in the spring of 2022, the company says. The development follows the recent commence-
ment of delivery of the first of its Compeo 176 lines, which the company says meet growing market demand for a larger kneader with a higher throughput.
Above: A CP550 production compact processor from Farrel Pomini (left rear) alongside its CPeX labora- tory model
fast mixing of the grafting components and very close temperature control. “From this point of view, the Buss kneader is tailor made for this applica- tion,” says Loviat. “In fact, a minimum temperature
of 190-200℃ must be reached in the first section of the machine in order to perform the grafting successfully. After that, the mixing of the flame retardant material, typically aluminium or magne- sium hydroxide, is added and mixed with the grafted compound. During this operation, excellent dispersion of the flame retardant and accurate temperature control are crucial in order to achieve good mechanical properties, while not exceeding the degradation temperature of the flame retard-
ant, which is around 200℃.” In another development, Buss is looking to
introduce its Compeo 44 lab-size compounder as a ready-to-run system that integrates upstream and downstream equipment. The machine will be shipped as a kit including a frame mounted set of
Energy advantages The market for continuous mixing equipment continues to be very positive, according to Farrel Pomini. “There is ongoing growth in our traditional market areas and the efficiency of our technology, especially with regard to energy, provides a signifi- cant advantage,” says Paul Lloyd, President and Business Unit Director. “The tremendous momentum of bio-friendly materials, including both biopolymers and recyclates, has changed the landscape we work in and opened up a number of opportunities.” Lloyd says that Farrel Pomini’s continuous mixers perform particularly well processing highly filled and temperature sensitive materials. “Principal applications include highly filled, white and black masterbatch, flame retardants, PVC and flooring,” he says. “Although our activity level with processing biopolymers and recycled materials, including PLA, PHA and WPC, has increased significantly.” The company’s continuous mixing technology is based on two counter-rotating, non-intermeshing rotors working within a large free volume mixing chamber. The large mixing chamber allows for liber- al material circulation and good distributive mixing, while the specialised rotor geometry facilitates
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HALL A6 BOOTH 6202
NEXT LEVEL SOLUTIONS
Integrated Systems for Polymer Processing
MAAG Group is the Partner for the Polymer Processing Industry worldwide. All of our inte- grated solutions from Pump and Filtration Sys- tems to Pelletizing and Pulverizing systems to Recycling Systems have an outstanding perfor- mance for demanding customer requirements.
IMAGE: FARREL POMINI
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