A fluid mixing system includes a support housing having an interior surface bounding a chamber. A flexible bag is disposed within the chamber of the support housing, the flexible bag having an interior surface bounding a compartment. An impeller is disposed within the chamber of the flexible bag. A drive shaft is coupled with the impeller such that rotation of the drive shaft facilitates rotation of the impeller. A drive motor assembly is coupled with the draft shaft and is adapted to rotate the drive shaft. An adjustable arm assembly is coupled with the drive motor assembly and is adapted to move the drive motor assembly which in turn moves the position of the drive shaft and impeller. An electrical controller can control movement of the adjustable arm.

Packed bed gel material cleaning vessel, has an internal processing volume, to contain the gel, delimited by a circumferential, axially extending, upright vessel wall at both axial ends sealed by a top vessel wall and an opposite bottom vessel wall, the internal processing volume is above 10 litre; sensors of the vessel monitor the filling level of the vessel. A bottom filter completely covers the vessel bottom wall A circumferential, axially extending, cylindrical vertical filter is provided a short radial distance, e.g. between 1 and 20 millimetre internally from, parallel and concentrically with, the upright vessel wall, providing a torus like flow gap concentrical with the upright vessel wall.

A stirring and separating device for high-value components of a waste PCB and a control method thereof are disclosed. The stirring and separating device comprises an insulated outer tank for accommodating a desoldering flux. The insulated outer tank is provided with a stirring mechanism. The stirring mechanism includes a main rotation shaft. A plurality of spaced cross beams are mounted at a bottom of the main rotation shaft. Each of the cross beams is provided with a secondary rotation shaft. A bottom of each of the secondary rotation shafts is rotationally connected with a stirring wheel through at least two connecting rods. At least two connection points are formed between each of the at least two connecting rods and the stirring wheel. When any one or more of the at least two connection points are disconnected, the stirring wheel rotates to a different angle.

A mixing device and methods for making bone cement. A piston (156) of the mixing device is located in a first region (158) of a chamber (112) such that a mixing paddle (154) rotates to mix bone cement components at a first pressure to make a bone cement mixture. The piston (156) is moved passed an inlet opening (136) to be located within a second region (160) of the chamber (112) to compress the bone cement mixture to a second pressure greater than the first pressure to compress the bone cement mixture and make the bone cement. The bone cement may be transferred to a delivery device. The mixing device may include features that automatically initiate the compression and transferring phases after completion of the mixing phase, and further include features that automatically terminate the operational cycle. A three-step intuitive workflow utilizing the mixing device to improve efficiency in the surgical suite is also disclosed.

Packed bed gel material cleaning vessel, has an internal processing volume, to contain the gel, delimited by a circumferential, axially extending, upright vessel wall at both axial ends sealed by a top vessel wall and an opposite bottom vessel wall, the internal processing volume is above 10 litre; sensors of the vessel monitor the filling level of the vessel. A bottom filter completely covers the vessel bottom wall A circumferential, axially extending, cylindrical vertical filter is provided a short radial distance, e.g. between 1 and 20 millimetre internally from, parallel and concentrically with, the upright vessel wall, providing a torus like flow gap concentrical with the upright vessel wall.

A mixing device and methods for making bone cement. A piston of the mixing device is located in a first region of a chamber such that a mixing paddle rotates to mix bone cement components at a first pressure to make a bone cement mixture. The piston is moved passed an inlet opening to be located within a second region of the chamber to compress the bone cement mixture to a second pressure greater than the first pressure to compress the bone cement mixture and make the bone cement. The bone cement may be transferred to a delivery device. The mixing device may include features that automatically initiate the compression and transferring phases after completion of the mixing phase, and further include features that automatically terminate the operational cycle. A three-step intuitive workflow utilizing the mixing device to improve efficiency in the surgical suite is also disclosed.