A rigid dump block designed to outperform OEM offerings.

Columbia Steel's rigid dragline dump block design helps minimize rigging weight
Columbia Steel’s rigid dump blocks help reduce critical rigging weight. Their simplified bearing arrangement means more efficient and more accurate rebuilds. Grease is required only once at initial build and at rebuild times.

We engineer, cast and assemble our dragline wear parts at our full-service manufacturing facility. Our rigid dump blocks stand up to the roughest service environments, and feature:

  • High strength steel construction
  • Astralloy® shafts
  • Cast nut protection
  • Larger bearings for longer service life
  • Sealed/dual row tapered roller bearings
  • Tight sheave and side-frame mating helps guide rope and exclude dirt