ECOROLL Hydrostatic Tools HGx-5 and HGx-6



ECOROLL Hydrostatic Tools HGx-5 and HGx-6


For rotation symmetric surfaces and complex contours

Hydrostatic tools of the ECOROLL HG range are able to roller burnish, deep roll and roller compress the most complex contours and free-form surfaces.

for example, using these tools, piston valves, valves and ball pins are able to be machined.

  • Can be used on CNC turning, drilling, milling machines and machining centers, or on conventional machine tools
  • Machining of all metallic materials up to a hardness of 65 HRC
  • Reduction of machining costs since many subsequent processes such as polishing or lapping are dispensed with

The heart of the HG tools is a special ball of hard material which is hydrostatically mounted in a ball holder. The ball is pressed with a defined rolling pressure against the surface of the work piece by the pressure medium in order to shape it there. The process induces residual compressive stresses into the boundary zone, increases the strength of the material and at the same time smooths the surface.


Note: Tools are listed as HGx-y, where x indicates the ball size and y the design version (e.g. HG6-2 holds a ball with ∅ 6 mm and is designed for machining cylindrical bores).

  • Use on CNC lathes with live tooling recommended
  • Integral high-pressure pump; no feed line required
  • Immediately ready for operation after locating in the revolver
  • With VDI shanks in diameter range 20 - 80 mm for all popular drive systems
  • Symmetric tool construction and double geared VDI shank enable use as right or left-handed tool
  • Similar to the HGx-5 model but with pivoting rolling element for ball heads and domes
  • Integral high-pressure pump; no feed line required
  • HG13-6R for roller burnishing concave fillets
  • Standard for HGx-5, HGx-6 and HGx-7
  • For use on CNC lathes with live tooling and tooling and tool connection to DIN 69880 (VDI shank) with diameters of 20 - 80 mm
  • Low pressure emulsion feed via the revolver
  • Actuation of high-pressure pump by tool drive
  • Any direction of rotation
  • max. speed 3000 rpm
  • Adjustable pressure-relief valve
  • Connection for manometer for adjusting rolling pressure available
  • Machine side emulsion filter = 40 micron required