The invention relates to the technical field of a cylindrical
metal tube
processing accessory device, in particular to a cylindrical
metal tube
cutting device. The cylindrical
metal tube
cutting device can improve the stability of a cylindrical metal tube on a
cutting table, prevents movement during cutting, and improves the reliability of use; and the cylindrical metal tube cutting device can timely reduce the temperature of a high-speed rotating friction heat-generating cutting disc, prevents reduction of strength of the cutting disc due to
quenching, prolongs the service life of the cuttingdisc, and improves the practicability. The cylindrical metal tube cutting device includes the cutting table, two sets of left supporting legs, two sets of right supporting legs, a rear side plate anda cutting
machine, and further includes a left arc-shaped clamping plate, a right arc-shaped clamping plate, two sets of left threaded rods, two sets of right threaded rods, two sets of left supportsprings, two sets of right support springs, a left front hand wheel, a left rear hand wheel, a right front hand wheel, a right rear hand wheel, four sets of left front support columns, four sets of left rear support columns, four sets of right front support columns, four sets of right rear support columns, a placement box, a recycling box, a metal filter screen, a liquid return pump, a mounting plate, a liquid return
pipe and a pressure
nozzle. The cutting disc is arranged at the bottom output end of the cutting
machine.