Abstract: A bending machine includes a bending head with three bender rollers, one of which is vertically displaceable with a double-acting cylinder having a cylinder body inside the bending machine frame and below the bending head. A work surface is above the bending head and provided with an opening coaxial with the double-acting cylinder. The work surface includes a support for a tool driven by the cylinder.

Abstract: Machine for bending pipes or section bars comprising a work table on which two or more powered spindle noses appear, at least one of which is powered to rotate in a direction and at least another is idle or driven to rotate in the opposite direction to the former one; said spindle noses being accessible for mounting/demounting on/from them spindles designed to support respective bender rollers or matrices defining a work area on the work table in order to bend a pipe or a section bar according to fixed or variable radiuses: support means for a counteracting member designed to co-operate with said bender rollers or matrices in a bending operation according to fixed or variable radiuses; said support means being firmly locatable on straight guide means in said work table along an approachment/removal direction of said counteracting member to/from, said work area.

Abstract: A bending machine includes a bending head with three bender rollers, one of which is vertically displaceable with a double-acting cylinder having a cylinder body inside the bending machine frame and below the bending head. A work surface is above the bending head and provided with an opening coaxial with the double-acting cylinder. The work surface includes a support for a tool driven by the cylinder.

Abstract: An electric motor for portable machine tools, comprising an output shaft for operating, means for sensing the speed of said output shaft; means for sensing the magnitude and the phase of the input voltage of the electric motor itself; means for sensing the electric current absorbed by the load, microprocessor means programmed for processing the detected values sensed by said means for sensing; means for generating an acceleration ramp at the starting; means for generating a deceleration ramp at the stopping, as well as means for generating the cruise speed of the tool, voltage controlled by said microprocessor in response to said detected values processed by itself, and means for controlling the forward running, reverse running and the run storing.