MAAG Group has been operating on the
Chinese market for a number of years with its own branch offices and plants,
and is heading for a record year in the extrusion pump sector despite the
current difficult economic climate.
In first quarter 2020 alone, MAAG Group
sold more extrusion pumps in China than in the entire year 2019. These will
mostly be used for the production of nonwovens and other medical products.
Chinese manufacturer Nanhai Nanxin Wufangbu
is relying on a MAAG Group's extrex6 pressure booster melt pump, in its
production of bonded fabrics (nonwovens) for face masks.
The installation of the extrex6 allows the
fabric specialist not only to meet high quality demands, but also to produce
the material more economically. The gear pump makes the processing of
thermoplastic polymers much more efficient.
The low compression gearing of the new MAAG
gear pump extrex6 is unique in the market and in particular allows transfer,
pressure-boosting and dosing applications at high pressure and with low shear
stress.
In the specific case of the production of
nonwovens, this means a 10% higher specific flow volume relative to other pump
solutions and 25% better wear resistance and sealing capability of the drive
shaft seal. The cooling surface of the seal is double that of conventional pump
designs. The temperature rise through the pump is 40% less, and the pulsations
at the melt pump discharge are minimized. The energy saving is 12%.
Other advantages in terms of high
availability and low operating cost result from the virtually maintenance-free
design. In addition to the general reliability of the gear pump, its high
accuracy delivers benefits in long-term operation, guaranteeing the process
stability of the Nanhai Nanxin Wufangbu production line at all times.