Abstract: A set includes a plurality of coffee grinders, each coffee grinder including: a body, a grinding unit, actuation means to activate the grinding unit, a load cell to weigh a filter holder, and booking means to book the activation of the coffee grinder; the set has a central control unit to receive a booking signal from the booking means of each coffee grinder and create an ordered list with an activation sequence of the coffee grinders; the central control unit is connected to the load cell of all coffee grinders to send an activation command of the load cell to a coffee grinder at a time according to the sequence indicated by the ordered list.

Abstract: A single-use mixer or homogenizer is provided that includes a container provided with a lid which is provided as a compression element (29) for substances (45) in the container (1). The compression element (29) is rotatably arranged in relation to the container (1). The substances (45) are pressed and ground through the sieve (13) into the collecting chamber (27) by the rotation of the compression element (29), and can be removed by a pipette (43) which passes through both the compression element (29) and the cover on the sieve (13).

Abstract: A crusher which can transmit energy to be applied to a piston to a silicon lump efficiently, and a silicon lump crushing apparatus which can crush a silicon lump into small pieces by suppressing the production of powders as much as possible and enables the automation of the crushing work of a silicon lump. The crusher is constituted such that a hammer head is connected to a piston. When compressed air is not applied to the piston, the hammer head is elastically urged to a standby position and when compressed air is applied to the piston, the hammer head is moved from the standby position to collide with the silicon lump. In the silicon lump crushing apparatus, a plurality of crushers having a hammer head to be collided with a silicon lump are opposed to the silicon lump supported on a support base and spaced apart from one another.

Abstract: A grinding head (10) includes a grinding bowl (12) provided with a boss (14) fixed to a bottom wall (16) of the bowl (12) and projecting into the bowl (12). The head (10) also includes a grinder ring (18) that is locatable over the boss (14) and freely moveable within the bowl (12). A lid (30) closes the bowl to prevent the escape of a mineral sample during grinding.

Abstract: A grinding barrel has a grinding barrel body with a peripheral wall and a bottom wall, the peripheral wall defining an open top, a grinding barrel lid closing the open top and a grinding disk in the hollow interior of the barrel. The bottom wall has an upper surface, the grinding disk has a downwardly facing undersurface, and the upper surface and the undersurface are formed with mutually interengaged recessed and protruding surface portions shaped to allow the grinding disk to slide across the upwardly facing surface to the peripheral wall and to interfit with one another along a line of contact at central surface portions of the and the bottom wall and also at the periphery of the disk, thereby improving the grinding efficiency of the grinding barrel.