1625 National Drawworks DrumShaft

Drum Shaft Assembly Components:

1. Drum Shaft Assembly:

   • This is the central shaft around which the main drum rotates, facilitating the winding and unwinding of the drilling line. ​

2. Low Clutch – National 42-B:

   • Engages the drum shaft for low-speed operations, providing the necessary torque for heavy lifting scenarios.

3. High Clutch – 46 x 10 Dy-A-Flex:

   • Engages the drum shaft for high-speed operations, allowing for faster line retrieval when less torque is required.