Abstract: An impact wrench motor unit includes a motor and an operating switch. A tool-holder shaft rotates about a rotation axis. A transmission unit percussion mechanism connects the motor unit and the tool-holder shaft. A handlebar structure has two handles for manually gripping the wrench. An electronic control system, containing a control board, connected to electric batteries and the operating switch. The electric motor is simultaneously powered by rechargeable batteries connected in parallel. The control system includes a device for generating three-phase current to the motor, utilizing a first battery generating a first phase, a second battery generating a second phase, and both the first and second batteries for generating a third phase. A ratio of contributions of the first and second batteries to the third phase generation depends on the residual charge state of the batteries. The least charged battery contributes less than the most charged battery.

Abstract: An impact wrench includes a motor producing rotary motion and a motor operating switch. A tool-holder shaft is rotatable about a rotation axis. A transmission unit with a percussion mechanism connects between the motor and the tool-holder shaft. A handlebar structure has two manual gripping handles. An electronic control system contains an electronic control board connected to electric batteries and the operating switch. A motor cooling fan conveys air along the motor. The motor is housed in a motor compartment of the main housing and a heat-sensitive part of the electronic control system, containing an electronic control board housed inside a protected compartment of the main housing. The protected compartment borders directly on the motor compartment and is separated from the motor compartment by a metal radiator directly facing the motor compartment and in heat exchange relation with the heat-sensitive part of the electronic control system.

Abstract: An impact wrench includes a motor unit with a motor adapted to produce a rotary motion and an operating switch for operating the motor. A tool-holder shaft rotatable about a rotation axis. A transmission unit with a percussion mechanism, connects between the motor unit and the tool-holder shaft. A handlebar structure has two manual gripping handles. An electronic control system contains at least one electronic control board connected to one or more electric batteries and to the operating switch. A damping connection system mechanically connects a transmission housing of the transmission unit to a main housing of the motor unit and the main housing to the handlebar structure. The damping connection system includes: one or more first damper elements interposed between the transmission housing and the main housing, and one or more second damper elements interposed between the main housing and the handlebar structure.

Abstract: A rail tool-holder cart (1) comprises a “T”-shaped support frame (2), a tool-holder arm, (12) rotatable about a vertical axis and tiltable between an upper position and a lower position and having a coupling interface for a tool (17, 17?), a spring (19), which pushes the tool-holder arm permanently towards the upper position, so as to compensate at least one part of the weight of the tool (17, 17?), as well as adjustment means (20) for adjusting the spring thrust (19).

Abstract: A working head (1) for a compression or cutting tool (100) comprises a connecting portion (3) for a removable connection of the working head (1) with an actuation part (2) of the tool (100), two jaws (4) movable between an open position and a closed position to perform the compression or cutting, and a local storage (6) configured for storing one or more cumulative data representative of a stress history of the jaws (4), wherein the local storage (6) is fixed to the working head (1).

Abstract: A system (1) for spiking, i.e. exploring voltage, in electric cables (5) comprises a first clamping jaw (3) and a second clamping jaw (4) to lock a portion of an electric cable (5) in a clamping position (7), an elongated metal blade (8) which can be displaced between a retracted position and an extended position in the clamping position (7), a hydraulic actuator (9) to displace the blade (8), with respect to the first and second clamping jaws (3, 4), from the retracted position into the extended position, a pump (10) adapted to increase the pressure of a hydraulic liquid acting on the hydraulic actuator (9), a hand-held remote control (12) for remotely actuating and controlling the pump (10), wireless actuation communication means (13) adapted to provide pump actuation signals from the remote control (12) to the pump (10).

Abstract: A shear bolt for a junction of electrical conductors includes a tool seat for engagement of the shear bolt by a screwing tool, an externally threaded portion to be screwed in a terminal body of the junction, along a screwing axis, and a tightening portion for engaging an electrical conductor to be tightened in the terminal body. The tool seat is formed at the threaded portion and the tightening portion is connected to the threaded portion on an opposite side with respect to the tool seat. The shear bolt can be sheared in one or more programmed rupture areas in the threaded portion when exceeding a predetermined tightening torque for each of the programmed rupture areas, respectively. Even with the screw unscrewed, the tightening portion is connected to the threaded portion and is rotatable with respect to the threaded portion about the screwing axis and non-detachable from the threaded portion.

Abstract: A hand-held tool (1) manually operable to compress or cut, the tool (1) being elongated bar-shaped or gun-shaped and including a casing (2) forming a grip portion, a motor (3) supported by the casing (2), a reduction and conversion mechanism (5) supported by the casing (2) and connected to the motor (3) and to an actuating member (6). The reduction and conversion mechanism (5) is configured to make the actuating member (6) translate along an actuating axis (7) in response to a rotational motion of the motor (3). A working head (8), connected to the casing (2), interacts with the actuating member (6) so that the working head (8) performs a compression or cutting movement in response to the translation of the actuating member (6). The reduction and conversion mechanism (5) has a conversion mechanism (9) with a planetary roller screw (10, 12, 14).

Abstract: A system (1) for spiking, i.e. exploring voltage, in electric cables (5) comprises a first clamping jaw (3) and a second clamping jaw (4) to lock a portion of an electric cable (5) in a clamping position (7), an elongated metal blade (8) which can be displaced between a retracted position and an extended position in the clamping position (7), a hydraulic actuator (9) to displace the blade (8), with respect to the first and second clamping jaws (3, 4), from the retracted position into the extended position, a pump (10) adapted to increase the pressure of a hydraulic liquid acting on the hydraulic actuator (9), a hand-held remote control (12) for remotely actuating and controlling the pump (10), wireless actuation communication means (13) adapted to provide pump actuation signals from the remote control (12) to the pump (10).

Abstract: A drill (1) for drilling railway sleepers comprises a support structure (2), a motor unit (3) supported by the support structure (2), a handle (4) connected to the support structure (2), at least one control member (5) arranged at the handle (4) for actuating the motor (3), a spindle (7) supported by the support structure (2) and operable by the motor (3), to rotate about a spindle axis (16), wherein a drilling tip (8) can be coupled to said spindle, a protective casing (11) connected to the support structure (2) and sliding in the direction of the spindle axis (16) between an axially protracted position, in which it envelops the tip (8) and an axially retracted position, in which the tip (8) protrudes from the protective casing (11), wherein the handle (4) comprises two gripping portions (36, 37), for the user's two hands, situated on two diametrically opposite sides of the drill (1) with respect to the spindle axis (16), and the motor unit (3) comprises an electric motor which can be powered by means of a r

Abstract: A working head (1) for a compression or cutting tool (100) comprises a connecting portion (3) for a removable connection of the working head (1) with an actuation part (2) of the tool (100), two jaws (4) movable between an open position and a closed position to perform the compression or cutting, and a local storage (6) configured for storing one or more cumulative data representative of a stress history of the jaws (4), wherein the local storage (6) is fixed to the working head (1).

Abstract: A working head for a hydrodynamic cutting tool includes a working head, an electro-hydraulic pump adapted to increase the pressure of a hydraulic liquid, and a pressure tube connected between the pump and the working head to communicate the pressure of the hydraulic liquid from the pump to the working head. The working head may be removably connectable to the pressure tube and includes two jaws movable, in response to the increase of the hydraulic liquid pressure, between an open position and a closed position to perform the cutting. A cutting detector may be used to detect the completion of the cutting. A cutting confirmation transmitter may be connected to the cutting detector and configured for a wireless transmission of a cutting completion confirmation signal to a cutting confirmation receiver of the cutting tool.

Abstract: A rail tool-holder cart (1) comprises a “T”-shaped support frame (2), a tool-holder arm, (12) rotatable about a vertical axis and tiltable between an upper position and a lower position and having a coupling interface for a tool (17, 17?), a spring (19), which pushes the tool-holder arm permanently towards the upper position, so as to compensate at least one part of the weight of the tool (17, 17?), as well as adjustment means (20) for adjusting the spring thrust (19).

Abstract: A hydrodynamic compression tool comprises a motor which actuates a hydrodynamic group suitable to increase the pressure of a hydraulic fluid acting on an actuation piston connected to jaws, an electronic control system connected to the electric motor and to a user operating member for the actuation of the electric motor. An identification detector in connection with the control circuit detects an identification characteristic of the jaws or inserts housed in the jaws or of an object to be compressed or cut.

Abstract: A hydrodynamic compression tool (1) comprises a motor (6) which actuates a hydrodynamic group (11) suitable to increase the pressure of a hydraulic fluid acting on an actuation piston (12) connected to jaws (13, 14), an electronic control system (9) connected to the electric motor (6) and to a user operating member (7) for the actuation of the electric motor (6) wherein the control system (9) monitors the reaching of a closed position of the jaws (13, 14) and switches off the motor (6) automatically upon reaching the closed position.

Abstract: A hydrodynamic compression or cutting tool comprises a housing, an electric motor arranged in the housing and having a motor rotational axis, a gripping portion formed by the housing and extending around the motor and along the motor rotational axis, a hydraulic pump arranged inside the housing and which can be driven by the motor so as to move a actuating piston along a actuating axis, a transmission mechanism arranged inside the housing between the motor and the hydraulic pump, two jaws connected to the housing and to the actuating piston, and which can be moved between an open position and a closed position for carrying out the compression or cut, wherein the actuating axis and the motor rotational axis are reciprocally parallel and offset.