A mixer drum driving apparatus includes an auxiliary fluid pressure pump that is provided independently of a fluid pressure pump and is capable of supplying a working fluid to a fluid pressure motor so as to cause a mixer drum to perform agitation rotation, a plurality of motors configured to drive the auxiliary fluid pressure pump to rotate, and a control unit that controls rotation of the mixer drum. When an engine is stopped during the agitation rotation of the mixer drum, the control unit drives the auxiliary fluid pressure pump to rotate by operating the plurality of motors selectively in accordance with a load of the mixer drum.

A mobile industrial mixing apparatus includes a frame, a mixing chamber, a motor, a storage bin, and a transport mechanism. The mixing chamber is coupled to the frame and includes a housing, a top end, and a bottom end, and includes a mixing mechanism disposed within the mixing chamber, the mixing mechanism mixing an industrial powdered bulk material with a liquid. A discharge opening allows a mixture of the industrial powdered bulk material and the liquid to leave the mixing chamber. The motor is coupled to the mixing mechanism and drives the mixing mechanism. The storage bin is coupled to the frame and is disposed proximate to the bottom end of the mixing chamber, the storage bin receiving the mixture of the industrial powdered bulk material and the liquid. The transport mechanism is coupled to the frame and transports the mixing chamber and the storage bin.

A concrete mixing machine for indoor preparation of fluid concrete for disposition as flooring. The concrete mixing machine includes a mixer tank capable of mixing of twenty-three bags of concrete concurrently. Mixing propellers inside of the mixer tank attach to a shaft, whereby a hydraulic propeller drive motor rotationally moves the shaft, and the mixing propellers mix the concrete. The concrete mixing machine produces a large batch of concrete, and the concrete mixing machine moves and deposits the concrete for application using a flow control mechanism with a flow control mixer attached to the mixer tank that regulates concrete flow through a valve and chute and synchronizes with a flow control drive-wheel. The concrete mixing machine is hydraulically operated and self-propelled. The concrete mixing machine does not emit gases harmful to indoor air quality and thus is environmentally friendly.

A portable mixer that has a first auger, a second auger, a motor, a material loading location, where material may be loaded into the mixer, and a dispensing conduit. The motor powers both the first auger and second auger. Further, the second auger may rotate in a first rotational direction and a second rotational direction and the second auger substantially prevents material from exiting a dispensing conduit when the second auger rotates in the first rotational direction and the second auger distributes material through the dispensing conduit when the second auger rotates in the second rotational direction.

A portable mixer that has a first auger, a second auger, a motor, a material loading location, where material may be loaded into the mixer, and a dispensing conduit. The motor powers both the first auger and second auger. Further, the second auger may rotate in a first rotational direction and a second rotational direction and the second auger substantially prevents material from exiting a dispensing conduit when the second auger rotates in the first rotational direction and the second auger distributes material through the dispensing conduit when the second auger rotates in the second rotational direction.

The disclosure herein describes a concrete mixing machine for indoor preparation of fluid concrete for disposition as flooring. The concrete mixing machine is capable of mixing of 23 bags of concrete concurrently. The concrete mixing machine produces a large batch of concrete, and the concrete mixing machine moves and deposits the concrete for application. The concrete mixing machine is hydraulically operated and self-propelled. The concrete mixing machine does not emit gases harmful to indoor air quality and thus is environmentally friendly.

Mobile mixing attachments, skidsteers with mobile mixing attachments, mobile mixing devices and related methods are provided. A mobile mixing attachment for use on a skid-steer can include a rotatable mixing drum having a body that forms an internal cavity and having a forward end and a bottom end. The mixing drum can include a mouth at the forward end of the body that provides access to the internal cavity of the mixing drum. The mobile mixing attachment can include a drum chassis configured to hold and rotate the mixing drum and an attachment plate secured to a rear portion of the drum chassis proximal to the bottom end of the body. The attachment plate configured to engage one or more attachment couplers on lift arms of a skid-steer. The mobile mixing device also comprises a scoop comprising a forward scooping lip and a rear loading end positioned in front of the mouth of the mixing drum. The scoop is secured to the drum chassis.