1BZ-4.0/4.5/5.5 hydraulic off-centered heavy-duty harrow is a new-type heavy-duty wide disc harrow recently developed by our company. Its main body is made of high-strength alloy steel, with steady structure. It is equipped with 10-15 wide tires. It is applicable for stubble cleaning in the fields of oil sunflower, corn, wheat and sugar cane and can replace the plough for the first cultivation on the light soil and cultivated land.