Common Wear Parts & Replacement Cycles of DTH Hammers for Water Well Drilling Rigs

Nuus 39 Sieninge
The water well drilling rig DTH hammer has these wear parts and replacement cycles:

 

  1. Piston: Replace every 200-300 hours. Wear shows as flattened top or reduced diameter.
  2. Bit alloy teeth: Replace every 50-100 Meter. Change when over 1/3 worn down.
  3. Sealing rings: Check every 50 hours. Replace at once if aged or cracked to stop air leaks.

Keep a replacement log to stock parts early, cutting downtime. One team raised the water well drilling rig’s utilization from 70% tot 90% this way.