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GR Series

GR Series

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The PROTEM GR-Series are OD clamping machines, specifically designed for boiler panels and waterwall cutout windows. They enable to proceed to the simultaneous weld end preparations on the tubes of the boiler panel and to the excavation of the membrane walls.

  • GR40 - Outside clamping machining equipment for tube panels

    21.3 mm (0.84") ID
    60.3 mm (2.37") OD

  • GR76 - Outside clamping machining equipment for waterwall boiler panels

    38 mm (1.50") ID
    76 mm (2.99") OD

  • GR90 - Outside clamping machining equipment for tube panels

    42.2 mm (1.66") ID
    89 mm (3.50") OD

  • GR120 - Outside clamping machining equipment for waterwall boiler panels

    48.3 mm (1.90") ID
    114.3 mm (4.50") OD