An abrasive cutter for cutting a rail of a track includes a drive for driving a cutting disc holder in rotation. A cutting disc is attached to the cutting disc holder with at least one clamping element. The drive is directly coupled to the cutting disc holder and has a maximum transverse extent which is at most equal to a diameter of at least one clamping element. The drive has an electric drive motor with a power density P.sub.Spez≥0.5 kW/kg. The abrasive cutter allows a reliable, efficient, user-friendly and low-maintenance through-cutting of a rail of a track.

The invention relates to an apparatus arranged to secure a portable cutting machine on an elongated profiled object, said apparatus comprising a base adapted to be disposed on an upper surface of the profiled object and at least one arm mounted to the base at right angles to the main extension of said object; the base comprising two parallel, spaced plates with an opening for receiving the object; each plate comprising a central, first contact surface arranged to contact the upper surface of the object; and a second inwardly angled contact surface extending from a first end of the plate towards a corresponding side surface of the object; that the base further comprises a rocker arm having a first end, a central portion and a second end; which rocker arm is mounted pivotable about a first axis at right angles to the parallel plates.

The invention relates to an apparatus arranged to secure a portable cutting machine on an elongated profiled object, said apparatus comprising a base adapted to be disposed on an upper surface of the profiled object and at least one arm mounted to the base at right angles to the main extension of said object; the base comprising two parallel, spaced plates with an opening for receiving the object; each plate comprising a central, first contact surface arranged to contact the upper surface of the object; and a second inwardly angled contact surface extending from a first end of the plate towards a corresponding side surface of the object; that the base further comprises a rocker arm having a first end, a central portion and a second end; which rocker arm is mounted pivotable about a first axis at right angles to the parallel plates.

A cutting grinder for cutting through a rail of a track includes a detection device for detecting a proposed cutting position. The cutting grinder guarantees simple, user-friendly and efficient through-cutting of the rail.

A cutting grinder for cutting through a rail of a track includes a detection device for detecting a proposed cutting position. The cutting grinder guarantees simple, user-friendly and efficient through-cutting of the rail.

A machine-tool system, particularly for work on a railway line, having at least one machine-tool such as an abrasive rail saw, and a device for driving the machine. The machine-tool is provided with an electric motor powered by an electric battery which is advantageously arranged in an assembly that can be worn by the operator of the machine and is connected to the motor by a power discharge cable.

A machine-tool system, particularly for work on a railway line, having at least one machine-tool such as an abrasive rail saw, and a device for driving the machine. The machine-tool is provided with an electric motor powered by an electric battery which is advantageously arranged in an assembly that can be worn by the operator of the machine and is connected to the motor by a power discharge cable.

A cold saw module may be a rail saw module that includes a cold saw configured to cut a railway rail along a cutting path, a rail alignment clamp configured to grip the railway rail near the cutting path, a feed actuator to drive the cold saw along the cutting path, and a module coupling element configured to selectively couple to a mating module coupling element of an articulated arm and/or a tool adapter. Cold saw modules may be used to cut metal workpieces such as a railway rail. Cutting a railway rail may include positioning the cold saw module at a cutting site along the railway rail installed in a railway, clamping the cold saw module to the railway rail, and cutting the railway rail at the cutting site with the cold saw module while the cold saw module is clamped to the cutting site.

A cold saw module may be a rail saw module that includes a cold saw configured to cut a railway rail along a cutting path, a rail alignment clamp configured to grip the railway rail near the cutting path, a feed actuator to drive the cold saw along the cutting path, and a module coupling element configured to selectively couple to a mating module coupling element of an articulated arm and/or a tool adapter. Cold saw modules may be used to cut metal workpieces such as a railway rail. Cutting a railway rail may include positioning the cold saw module at a cutting site along the railway rail installed in a railway, clamping the cold saw module to the railway rail, and cutting the railway rail at the cutting site with the cold saw module while the cold saw module is clamped to the cutting site.

A two-part rail saw assembly includes a clamp part and a saw part. The clamp part includes a clamp mechanism configured to clamp to a rail to be cut and a first connection interface coupled to the clamp mechanism. The saw part includes a second connection interface complemental to the first connection interface, the first and second connection interfaces configured to fixedly and positively interconnect, thereby to connect and fix the saw part relative to the clamp part. The saw part also includes a circular saw blade rotatably mounted to a saw hub, the saw hub being displaceably mounted relative to the second connection interface. The saw part further includes a feed mechanism configured to guide and displace the saw hub, and hence the saw blade, through a cutting path relative to the second connection interface, and thus relative to the clamp part when the parts are interconnected, and thus relative to the rail when the clamp mechanism is clamped thereto.