Abstract: A filter apparatus, particularly for filtering coolant/lubricant from a machining, including a filter tank having an inlet for the liquid to be filtered, an outlet for the filtered liquid and a belt of filter medium adapted to circulate within the filter tank and having a top side and a bottom side. The liquid to be filtered is introduced below the bottom side and is discharged between the top side and the bottom side. The filter material of the bottom side separates the unfiltered liquid from the filtered liquid and prevents floating particles in the liquid from reaching the outlet for the filtered liquid.

Abstract: A filter apparatus for separating particles from a liquid having a tank with a feed inlet, a gravitational settling zone and a filtration zone arranged downstream of the settling zone. Inside the tank are two transversely spaced-apart endless chains with transversely extending drivers fixed between the chains, the drivers and chains together forming a conveying apparatus driven by gear wheels and a drive motor. The filtration zone includes a vacuum chamber, which is formed partly by the tank and is arranged underneath the solid particle filtration apparatus. Between the unfiltered liquid region and the filtered liquid region is a filter media strip, which is pulled through the tank along a path which changes direction by the chains and drivers. Each chain has flexible metal strips that extend along the chain and over a plurality of chain links. The metal strips are fixed at one end and partially overlap.

Abstract: A filter module for filtering liquids, particularly hot oils. The filter module is provided with a base plate (10) and filter tubes (11), such that the filter tubes (11) are individually connected to the base plate (10) in a detachable manner and a seal is formed between the filter tubes (11) and the base plate (10). Individual filter tubes can thus be exchanged with little effort.

Abstract: A filter apparatus for separating particles from a liquid having a tank with a feed inlet, a gravitational settling zone and a filtration zone arranged downstream of the settling zone. Inside the tank are two transversely spaced-apart endless chains with transversely extending drivers fixed between the chains, the drivers and chains together forming a conveying apparatus driven by gear wheels and a drive motor. The filtration zone includes a vacuum chamber, which is formed partly by the tank and is arranged underneath the solid particle filtration apparatus. Between the unfiltered liquid region and the filtered liquid region is a filter media strip, which is pulled through the tank along a path which changes direction by the chains and drivers. Each chain has flexible metal strips that extend along the chain and over a plurality of chain links. The metal strips are fixed at one end and partially overlap.

Abstract: An apparatus for collecting and transporting chip-contaminated coolant, including a trough-shaped channel arranged underneath or between machine tools and a filter apparatus or a recirculating pump station, with at least one opening being provided in a lower region of the channel. Above this opening is at least one fluid outlet, which is configured such that coolant or another fluid streaming through this opening and the fluid outlet accelerates the transport of liquid and/or solid materials in the channel.

Abstract: An open-topped collection trough for arrangement under a machine tool to collect downwardly flowing coolant emitted from coolant spray nozzles of the machine tool which direct coolant jets onto cutting tools and adjacent surfaces, in which the collection trough is provided with a height adjusting mechanism and a seal system made of foam seal material between the top edge at the side of the trough and the undersurfaces of a machine tool to seal the gap between the trough and the tool.

Abstract: A filter apparatus, particularly for filtering coolant/lubricant from a machining, including a filter tank having an inlet for the liquid to be filtered, an outlet for the filtered liquid and a belt of filter medium adapted to circulate within the filter tank and having a top side and a bottom side. The liquid to be filtered is introduced below the bottom side and is discharged between the top side and the bottom side. The filter material of the bottom side separates the unfiltered liquid from the filtered liquid and prevents floating particles in the liquid from reaching the outlet for the filtered liquid.

Abstract: A device for conveying a liquid, in particular a cutting liquid from a machining operation containing production residues. The device includes a vertical pump having a pump housing (14), a pump impeller (13), a drive shaft (19) surrounded by a housing (18), an electric motor, and a shaft connection between the electric motor and the pump impeller (13). The pump housing (14) has an inlet opening (15) and a liquid delivery opening (16). When the pump is started, a negative pressure is generated in the housing (18) surrounding the drive shaft (19). The zone of negative pressure extends into the pump housing (14) through a gap (22) between the shaft (19) and the housing (18) and thus assures that fluid will be drawn into the pump even when the liquid level is extremely low.

Abstract: An open-topped collection trough for arrangement under a machine tool to collect downwardly flowing coolant emitted from coolant spray nozzles of the machine tool which direct coolant jets onto cutting tools and adjacent surfaces, in which the collection trough is provided with a height adjusting mechanism and a seal system made of foam seal material between the top edge at the side of the trough and the undersurfaces of a machine tool to seal the gap between the trough and the tool.

Abstract: A device for conveying a liquid, in particular a cutting liquid from a machining operation containing production residues. The device includes a vertical pump having a pump housing (14), a pump impeller (13), a drive shaft (19) surrounded by a housing (18), an electric motor, and a shaft connection between the electric motor and the pump impeller (13). The pump housing (14) has an inlet opening (15) and a liquid delivery opening (16). When the pump is started, a negative pressure is generated in the housing (18) surrounding the drive shaft (19). The zone of negative pressure extends into the pump housing (14) through a gap (22) between the shaft (19) and the housing (18) and thus assures that fluid will be drawn into the pump even when the liquid level is extremely low.

Abstract: A belt filter device for the cleaning of contaminated liquids has an upper dirt chamber which receives the contaminated liquid. Underneath this dirt chamber, a clean chamber is arranged. Between the dirt chamber and the clean chamber, a filter bottom is provided which has a passage opening for the liquid and on which a revolving filter belt is arranged so that it can be moved along automatically as a function of the amount of contaminations deposited on it. Outside the dirt chamber, a cleaning device is arranged which removes the contaminations situated on the filter belt. The cleaning device has at least one spray head which is arranged on the rear of the filter fabric and above the level of the contaminated liquid so that the dirty cleaning liquid is supplied directly to the contaminated liquid.