... , oil and heavy-duty air filter elements. DJGT-600 Full-automatic rotary paper pleating production lineApplications:This machine is especially designed and ... and heavy-duty air filter elements. Consists1, Automatic de-coiler2, Pre-slitter system3, automatic counter4, Six pares of rollers in cycle5, ... the paper evenly & smoothly pleated.6, Computer controlling, easy operation. Rotary Pleating machine