Abstract: A coffee bean roaster includes a machine body, a roasting drum, a heating device, and a fan module. The machine body includes a casing, a receiving trough, a container, and a partition assembly disposed inside the casing and partitioning an inside of the casing into a first chamber, a second chamber, and a third chamber. The receiving trough is disposed outside the casing and communicates with the first chamber. The container disposed in the receiving trough has mesh holes communicating with the receiving trough. The roasting drum is rotatably disposed inside the second chamber of the casing. One side of the roasting drum has through holes communicating with the third chamber. The heating device is disposed inside the second chamber for heating the roasting drum. The fan module is attached to the casing for pumping air to the outside of the casing through the first chamber and the third chamber.

Abstract: A roasting drum of a coffee bean roaster including a drum body, an end plate and a plurality of guide vanes. The end plate is coupled to an end of the drum body and has a plurality of through holes communicating with an inside and an outside of the drum body, each of the through holes is elongated and extends along a radial direction of the end plate. The guide vanes are connected to the end plate and disposed respectively at one side of the through holes. With the flow guiding of the guide vanes, the airflow inside the roasting drum of the coffee bean roaster is efficiently accelerated.

Abstract: A roasting drum and a manufacturing method thereof including a drum body and at least one agitator blade. The drum body includes a drum wall which provides with at least one fixing hole, the at least one fixing hole passing through an inner surface and an outer surface of the drum wall. The at least one agitator blade is disposed in the drum body and is provided with at least one fixing convex part which passes through the at least one fixing hole. The agitator blade can be positioned in the drum body and is not easily displaced when assembling.

Abstract: A coffee bean roaster includes a machine body, a roasting drum, a heating device and a fan module. The machine body includes a casing, a partition assembly, a receiving trough and a container. The partition assembly is disposed inside the casing and partitions the inside of the casing into a first chamber, a second chamber and a third chamber. The receiving trough is disposed outside casing and communicates with the first chamber, and the container is disposed in the receiving trough and has a plurality of mesh holes communicating with the receiving trough. The roasting drum is rotatably disposed inside the second chamber of the casing, wherein one side of the roasting drum has a plurality of through holes communicating with the third chamber. The heating device is disposed inside the second chamber for heating the roasting drum. The fan module is attached to the casing for pumping air to the outside of the casing through the first chamber and the third chamber.