Steam Turbine Cylinder Casing Machining Solutions
Steam Turbine Cylinder Casing Machining Solutions

Steam turbine cylinder casings are cast from heat-resistant cast steel, combining high strength and high temperature resistance. With uneven wall thickness, large casting allowance and uneven hardness, they are prone to cutting vibration and deformation, making them large difficult-to-machine housing components.

Steam Turbine Cylinder Casing Machining Solutions

Rough Milling of Cylinder Split Face

Heavy-duty Face Mill XFM-70

  • 70° principal cutting edge angle, diameter range D160–D315

  • Positive 4-edge indexable inserts with robust cutting edges and light cutting forces

  • Wedge clamping structure for higher insert change efficiency

  • Equipped with insert seat protection to prevent damage to the cutter body

Rough Milling of Cylinder Split Face

Heavy-duty Face Mill XFM-70

Large Thread Hole Machining

ATM60 Series Thread Milling Cutters

  • Universal insert grade, suitable for P, M and S workpiece materials

  • Supports internal thread hole depth machining up to 2.5×D

  • Available in single-row and multi-row tooth cutter bodies for different machining efficiency requirements

  • Thread hole machining range: M20–M64

Large Thread Hole Machining

ATM60 Series Thread Milling Cutters

Machining of Cylinder Step Faces

Shoulder Milling Cutter ASM90-AO12

  • 90° principal cutting edge angle, diameter range D20–D80

  • Cutter bodies available with various interfaces, diameters and coarse/fine tooth options

  • Positive indexable inserts, AP403M grade is suitable for cast steel machining

Machining of Cylinder Step Faces

Shoulder Milling Cutter ASM90-AO12

Machining of Inner Slot Faces on Cylinder

Custom Three-edge Side Milling Cutter

  • Inserts: standard or custom inserts

  • AP403M grade as the first choice

  • Modular cartridge design on cutter body, interchangeable for roughing and finishing operations

Machining of Inner Slot Faces on Cylinder

Custom Three-edge Side Milling Cutter

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