Abstract: A dust extractor (1) comprising—a dust cyclone container (3) with an air inlet (2) for connecting to a hose, the dust cyclone container (3) having a contaminated portion downstream the air inlet (2) and a clean portion downstream the contaminated portion, where a dust separating part (9) is adapted to be provided between the contaminated portion and the clean portion, the dust separating part (9) comprising at least one cyclone and/or a coarse filter part (9), where the contaminated portion of the dust cyclone container (3) is adapted to be provided with a dust container (59), such as a flexible dust bag or a rigid box for collecting relatively coarse dust, —a fine filter section (12) arranged adjacent to the dust cyclone container (3) and having a contaminated section and a clean section downstream the contaminated section, and a fine filter part (15) is adapted to be provided between the contaminated section and the clean section, —a mobility section (66) comprising wheels (7, 8a, 8b) and a frame (6), —an a

Abstract: A filter arrangement (200, 300, 400, 450) for a heavy duty dust extractor (100), the filter arrangement comprising a filter holder (180), an essential filter (150), a filter inlet (250), a filter outlet (260), a first air pressure sensor (310) and a second air pressure sensor (320), wherein the first air pressure sensor (310) is arranged to indicate an inlet air pressure (P3) associated with the filter inlet (250) and the second air pressure sensor (320) is arranged to indicate an outlet air pressure (P4) associated with the filter outlet (260), the filter arrangement further comprising a control unit (170) arranged to detect a state of the essential filter (150) based on a pressure difference between the inlet air pressure (P3) and the outlet air pressure (P4).

Abstract: The present disclosure relates to fine filter part kit (63), comprising a replacement fine filter part (15) that is adapted to be mounted to a fine filter section (12) for a dust extractor (1). The fine filter part kit (63) further comprises a filter lid (16) that is adapted to be mounted to a corresponding used fine filter part (15) to be replaced, already mounted to the fine filter section (12), and thereby seal an opening (28) of a particle containing space inside the used fine filter part (15) before removing the used fine filter part (15). In this way, release of particles contained in the particle containing space into the ambient air is prevented and a secure disposal of the used fine filter part (15) is enabled.

Abstract: The present disclosure relates to dust extractor (1) comprising a dust cyclone container (3) having a contaminated portion downstream an air inlet (2) and a clean portion downstream the contaminated portion, and a dust separating part (9) there between. The contaminated portion is provided with a dust container (59). The dust extractor (1) comprises a fine filter section (12) arranged adjacent to the dust cyclone container (3) and having a contaminated section and a clean section downstream the contaminated section, and a fine filter part (15) is adapted to be provided between the contaminated section and the clean section. An air channel (47) runs between a clean side of the dust cyclone container (3) and a contaminated side of the fine filter part (15). The dust extractor also comprises a mobility section (66) comprising wheels and a blower/fan motor (10) for drawing air from the air inlet (2) through the dust extractor.

Abstract: A valve arrangement (900) for generating a pulse of air (1100) to clean an air filter (125) of a pre-separator (120), the arrangement (900) comprising: a main valve closure body (950) arranged to seal a passage (951) between a high pressure (P2) side and a low pressure (P3) side of the valve arrangement (900), a control body (940), connected to the main valve closure body (950), such that a position of the main valve closure body (950) Is determined by a position of the control body (940), a control chamber (930), partially defined by the control body (940), whereby a volume of the control chamber (930) Is variable In relation to the position of the control body (940), and a control chamber valve (920) having an open state and a closed state for regulating a pressure (P1) In the control chamber, wherein the control chamber (930) Is fluidly connected to the low pressure (P3) side via a connecting channel (935) configured with a connecting channel aperture (936), wherein the control chamber valve (920) Is confi

Abstract: A hatch mechanism for a pre-separator 120, the mechanism comprising an aperture having a perimeter arranged in a plane, and at least three elongated obturator elements pivotably attached along the perimeter at respective hinge ends, each obturator element comprising a distal end arranged opposite to the hinge end along the extension direction of the obturator element, wherein adjacent obturator elements arranged along the perimeter are connected by foldable joining members arranged to guide the distal ends to a common intersection point distanced from the plane, whereby the obturator elements are arranged to fold about respective hinge ends to a position of mutual support to close the hatch mechanism.

Abstract: A method for controlling operation of a dust extractor, the method comprising; obtaining (S1) sensor data (235) related to an airflow (240) into the dust extractor, determining (S2) if the dust extractor is operating in a high airflow operating range based on the sensor data (235), and if the dust extractor is operating in the high airflow operating range, controlling (S3) a fan motor (210) of the dust extractor to reduce the airflow (240) to a reduced flow level (330, 3301) at or above a pre-determined airflow level (340) and below an obtainable flow level (310), wherein the pre-determined airflow level (340) is associated with a dust extraction capability of the dust extractor (100).

Abstract: The present disclosure relates to a tile or masonry saw assembly comprising a saw device (2) including a motor (5) arranged to run a saw blade (4) to cut a workpiece. The saw assembly also comprises a frame (3) that is arranged to support the saw device (2) and a workpiece support (15) operably coupled to the frame (2) to support the workpiece relative to the saw device (2). The saw assembly further comprises a cover assembly (6) with a cover (9) and a supporting structure (10). A front end (25) is arranged to face the saw blade (4) and an opposing rear end (26) where a dust hose attachment (11) is positioned and arranged to be connected to a vacuum dust collection arrangement. The supporting structure (10) comprises a base (16) that is arranged to be fastened to the workpiece support (15). The cover (9) is movable relative the base (16), and the cover assembly (6) is releasably attachable to the workpiece support (15).

Abstract: A cutting machine having a liquid lubrication delivery system. The machine includes a work-piece platform having an upper surface for supporting a work-piece thereupon. The work-piece platform can further include a main channel defining a recess in the upper surface. At least one liquid lubrication inlet for discharging liquid into the main channel can also be present on the work-piece platform. The at least one liquid lubrication inlet can be a plurality of liquid lubrication inlets.

Abstract: The present disclosure relates to a tile or masonry saw assembly comprising a saw device (2) including a motor (5) arranged to run a saw blade (4) to cut a workpiece. The saw assembly also comprises a frame (3) that is arranged to support the saw device (2) and a workpiece support (15) operably coupled to the frame (2) to support the workpiece relative to the saw device (2). The saw assembly further comprises a cover assembly (6) with a cover (9) and a supporting structure (10). A front end (25) is arranged to face the saw blade (4) and an opposing rear end (26) where a dust hose attachment (11) is positioned and arranged to be connected to a vacuum dust collection arrangement. The supporting structure (10) comprises a base (16) that is arranged to be fastened to the workpiece support (15). The cover (9) is movable relative the base (16), and the cover assembly (6) is releasably attachable to the workpiece support (15).

Abstract: A tile or masonry saw assembly may include a saw and a frame. The saw includes a motor operable to turn a blade of a blade assembly to cut a workpiece. The blade assembly is internally wetted during operation by nozzles disposed on opposing sides of the blade to provide water onto the blade within a blade guard configured to shield a portion of the blade. The frame is operably coupled to the saw to support the workpiece. The frame supports a water collecting system for collecting the water. The water collecting system includes a water tank that is removable from the frame.

Abstract: A tile or masonry saw assembly may include a saw and a frame. The saw includes a motor operable to turn a blade of a blade assembly to cut a workpiece. The blade assembly is internally wetted during operation by nozzles disposed on opposing sides of the blade to provide water onto the blade within a blade guard configured to shield a portion of the blade. The frame is operably coupled to the saw to support the workpiece. The frame supports a water collecting system for collecting the water. The water collecting system includes a water tank that is removable from the frame.

Abstract: A tile or masonry saw assembly may include a saw and a frame. The saw includes a motor operable to turn a blade of a blade assembly to cut a workpiece. The blade assembly is internally wetted during operation by nozzles disposed on opposing sides of the blade to provide water onto the blade within a blade guard configured to shield a portion of the blade. The frame is operably coupled to the saw to support the workpiece. The frame supports a water collecting system for collecting the water. The water collecting system includes a water tank that is removable from the frame.

Abstract: A tile or masonry saw assembly may include a saw and a frame. The saw includes a motor operable to turn a blade of a blade assembly to cut a workpiece. The blade assembly is internally wetted during operation by nozzles disposed on opposing sides of the blade to provide water onto the blade within a blade guard configured to shield a portion of the blade. The frame is operably coupled to the saw to support the workpiece. The frame supports a water collecting system for collecting the water. The water collecting system includes a water tank that is removable from the frame.

Abstract: A cutting machine having a liquid lubrication delivery system. The machine includes a work-piece platform having an upper surface for supporting a work-piece thereupon. The work-piece platform can further include a main channel defining a recess in the upper surface. At least one liquid lubrication inlet for discharging liquid into the main channel can also be present on the work-piece platform. The at least one liquid lubrication inlet can be a plurality of liquid lubrication inlets.