Horizontal screw ribbon mixer can mix materials so sufficient evenly that improve the evenly mixing effects. Some mixers are used the new structure of mixing bar, the clearance between the bar and shell can be minimum or close to zero, which can reduce the residue at the bottom of mixer . Meanwhile ,the horizontal mixer can crush and break the bigger materials . The general structure are much reasonable and nice appearance . It is easy to operate and maintain. There shall be appointed one person to check and maintain on horizontal mixer ,because the maintenance work is very important .