... bulk materials XS series bulk materials pneumatic ship unloading machine Bulk suction machine and Pneumatic bulk handling system are the pneumatic ... device, roots blower or vacuum pump), Positive press pneumatic conveying machine (pressure pump, combination pump, Air compressor) and Electric control ... the products have some series:20, 50, 100, 150, 200, 300,400,500 t/h.The Stretching length of the ...