It is manufactured in 4250-4600 mm sizes.The screen coal flow surfaces will be of Cr-Ni quality. This machine uses the vibration motor as the excitation source, self-synchronous reverse rotation with two groups of vibration motors generates linear vibration force, which drives the whole body, makes linear vibration. The vibration motor installed directly on the side plate is composed of two vibration motors connected by coaxial, flexible disc and de-coiler. Compared with the general motor-driven eccentric block-type vibrator structure, this is more simple, reliable, and allows the screen machine to cover a smaller area.