Abstract: A drive arrangement for driving a planetary head of a floor surfacing machine, the drive arrangement comprising; a first drive wheel arranged to be driven by a first motor, a second drive wheel fixedly attached to the planetary head and arranged to be driven by the first drive wheel via a connecting member, wherein the drive arrangement comprises a protective casing arranged to enclose the first and second drive wheels, and the connecting member, thereby protecting the drive arrangement from dust, debris, and slurry.

Abstract: A drive arrangement (300) for driving a planetary head (140) of a floor surfacing machine (100), the drive arrangement (300) comprising; a first drive wheel (310) arranged to be driven by a first motor (110), a second drive wheel (330) fixedly attached to the planetary head (140) and arranged to be driven by the first drive wheel via a connecting member (320), wherein the drive arrangement (300) comprises a protective casing (240) arranged to enclose the first (310) and second (330) drive wheels, and the connecting member (320), thereby protecting the drive arrangement (300) from dust, debris, and slurry.

Abstract: A floor grinder (100) for processing a concrete surface (101), the floor grinder comprising one or more rotatable abrasive tool holders (150) arranged in a plane (P) to hold respective abrasive tools (210, 510), at least one power source (110, 120) arranged to drive the tool holders (150), a cover body (130) fixedly arranged in relation to the plane (P), and a dust skirt (140) movably attached around a rim of the cover body (130) to engage the concrete surface (101) during floor grinding operation, where the floor grinder (100) comprises at least one tool wear indicator (160) configured to indicate a current tool wear based on a displacement of the dust skirt (140) relative to the cover body (130) in a direction (D) normal to the plane (P).

Abstract: The present disclosure relates to a grinding head (1) for a floor grinding machine for grinding floor surfaces of stone or stone-like material. Such a grinding head (1) comprises a lower casing member (3), comprising a lower support (31) and an upwardly extending edge portion (32), and an upper casing member (2), comprising an upper cover (21) and a downwardly extending edge portion (22), wherein the upper casing member (2) is joinable to the lower casing member (3) by causing axially distal portions of the edge portions to bear on each other.

Abstract: A floor grinder (100), comprising at least one motor (110, 120) arranged to rotatably drive one or more abrasive grinding tool holders (130), and a control unit (140) arranged to monitor an operating characteristic of the floor grinder, wherein the control unit is arranged to compare the monitored operating characteristic to a pre-determined set of operating characteristics indicative of a tool glazing condition, and to trigger an action in case the monitored operating characteristic is indicative of a tool glazing condition, wherein the control unit is arranged to monitor the operating characteristic of the floor grinder using a machine learning technique and a glazing model configured using a plurality of examples of floor grinders which have experienced various degrees of glazing.

Abstract: A concrete surface processing machine (100) for processing a concrete surface, wherein the machine comprises means for self-locomotion and a control unit (110) arranged to control the means for self-locomotion, wherein the machine comprises one or more surface quality sensors connected to the control unit (110) and arranged to determine a local surface quality of the concrete surface, and wherein the control unit (110) is arranged to control a self-locomotion of the machine to determine a plurality of local surface quality values associated with respective different locations on the concrete surface.

Abstract: The present disclosure relates to a grinding head (1) for a floor grinding machine for grinding floor surfaces of stone or stone-like material. Such a grinding head (1) comprises a lower casing member (3), comprising a lower support (31) and an upwardly extending edge portion (32), and an upper casing number (2), comprising an upper cover (21) and a downwardly extending edge portion (22), wherein the upper casing member (2) is joinable to the lower casing member (3) by causing axially distal portions of the edge portions to bear on each other.

Abstract: The present disclosure relates to a grinding head for a floor grinding machine for grinding floor surfaces of stone or stone-like material. Such a grinding head comprises a lower casing member, comprising a lower support and an upwardly extending edge portion, and an upper casing member, comprising an upper cover and a downwardly extending edge portion, wherein the upper casing member is joinable to the lower casing member by causing axially distal portions of the edge portions to bear on each other.

Abstract: A drive arrangement (300) for driving a planetary head (140) of a floor surfacing machine (100), the drive arrangement (300) comprising; a first drive wheel (310) arranged to be driven by a first motor (110), a second drive wheel (330) fixedly attached to the planetary head (140) and arranged to be driven by the first drive wheel via a connecting member (320), wherein the drive arrangement (300) comprises a protective casing (240) arranged to enclose the first (310) and second (330) drive wheels, and the connecting member (320), thereby protecting the drive arrangement (300) from dust, debris, and slurry.

Abstract: The present disclosure relates to a grinding head (1) for a floor grinding machine for grinding floor surfaces of stone or stone-like material. Such a grinding head (1) comprises a lower casing member (3), comprising a lower support (31) and an upwardly extending edge portion (32), and an upper casing number (2), comprising an upper cover (21) and a downwardly extending edge portion (22), wherein the upper casing member (2) is joinable to the lower casing member (3) by causing axially distal portions of the edge portions to bear on each other.

Abstract: The present disclosure relates to a grinding head (1) for a floor grinding machine for grinding floor surfaces of stone or stone-like material. Such a grinding head (1) comprises a lower casing member (3), comprising a lower support (31) and an upwardly extending edge portion (32), and an upper casing member (2), comprising an upper cover (21) and a downwardly extending edge portion (22), wherein the upper casing member (2) is joinable to the lower casing member (3) by causing axially distal portions of the edge portions to bear on each other.

Abstract: The present disclosure relates to a grinding head for a floor grinding machine for grinding floor surfaces of stone or stone-like material. Such a grinding head comprises a lower casing member, comprising a lower support and an upwardly extending edge portion, and an upper casing member, comprising an upper cover and a downwardly extending edge portion, wherein the upper casing member is joinable to the lower casing member by causing axially distal portions of the edge portions to bear on each other.