... accurate, reliable, easy to operate, time relay control speed, reliable, long service life. This machine is ... minute (4 minutes 100 to switch) and a constant speed of work. Main technical parameters: 1. Drum body ... Drum body length: 1000±5mm 4. Drum body speed: 25r/min, 100r time: 4mim±10s 5. ... accurate, reliable, easy to operate, time relay control speed, reliable, long service life. 2, can be equipped ...