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Kays Engineering meets your unique applications and requirements.

We design and build custom DeHoff gundrilling machines. These machines feature custom fixturing, automated workpiece loading/unloading, and unique spindle configurations.

If you’d like to learn more about how we can customize a machine for you, please contact Ed Kays at 660-886-9929 or [email protected].

Examples of customized DeHoff machines

DeHoff 218 4-Spindle

218 4-Spindle

  • Custom machine for gundrilling hollow stem engine values
  • Gundrilling capacity = 0.25 inches (6.4 mm)
  • Max depth = 18 inches (457 mm)
  • 4 spindles
  • Automated workpiece loading / unloading
DeHoff 1024C 6-Spindle

1024C 6-Spindle

  • Custom machine for gundrilling camshafts
  • Gundrilling capacity = 1 inch (25.4 mm)
  • Max depth = 24 inches (610 mm)
  • 6 spindles
  • Lift-and-Carry material handling automation
  • Adjustable tailstocks/hydraulic clamping system
DeHoff 1536 Twin Slide

1536 Twin Slide

  • Custom machine for gundrilling helicopter drive shafts
  • Gundrilling capacity = 1.5 inches (38.1 mm)
  • Max depth = 36 inches (914 mm)
  • 2 spindles on independent slides with dual operator controls
DeHoff 518 Cell 9-Spindle

518 Cell 9-Spindle

  • Custom machine for gundrilling of scroll compressor drive shafts
  • Gundrilling capacity = 0.5 inches (12.7 mm)
  • Max depth = 18 inches (457 mm)
  • 9 total spindles on 3 machine bases (three spindles on each base)
DeHoff 1036 CNC 3-Axis Boring Machine

1036 CNC 3-Axis Boring Machine

  • Custom machine for boring the cam journals of automotive engine blocks during rebuild program
  • CNC control and knee table with X-axis & Y-axis movement
  • Max boring depth (Z-axis travel) of 36 inches (914 mm)
  • X-axis travel of 21.5 inches (550 mm), Y-axis travel of 12 inches (300 mm)
  • Boring capacity = 1 inch (25.4 mm)
DeHoff 3060 Single-Axis Boring Machine

3060 Single-Axis Boring Machine

  • Custom machine for boring the bottom housing of a rail car hopper bin
  • Boring capacity = 3 inches (76.2 mm)
  • Boring depth = 60 inches (1524 mm)
  • 40 HP spindle motor with 4-speed gearbox to meet rigorous material removal requirements
  • Custom workpiece loading and fixturing system

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