The drums have a standard length of 100 cm. On the inside they have an exchangeable FilterFlex cloth. FilterFlex cloth is available in mesh widths of 40, 80, 160, 250 and 500 microns. Depending on the required capacity, degree of filtration and waste load, it is possible to place one, two, three or four drums in a single Trumma housing.
It is also possible to use FilterFlex cloths with different densities in a single Trumma housing. An example: we fitted a Trumma IV with four drums in line, two of them having FilterFlex cloths of 500 microns, followed by two drums with 160 micron FilterFlex cloths. In this way you can achieve a step-wise filtration from coarse to fine waste load in a single filtration process.