Genuine P&H Optima series dippers and upgrades:
- Have been proven to eliminate door latch adjustments between Planned Maintenance (PM) intervals
- During field trials PM door latch adjustments have been reduced by as much as 75%
- Due to longer component life, door latch component replacement costs have been reduced by as much as 80%
- More than 500 shovel dippers have been installed over the past 15 years. We have supplied more electric mining shovel dippers than all other manufacturers combined
Understanding the system
Roller latch door
- Sliding interfaces between the latchkeeper, latch bar, latch lever and shimbox have been replaced with a deeper engagement rolling pin assembly for increased reliability
- Typically does not require adjustments for multiple preventative maintenance intervals
- Low friction rolling interfaces have replaced sliding interfaces to substantially decrease wear
- Reliable opening and closing increases operator confidence for increased productivity
Heavy duty SnubRite
- The new Heavy Duty Snubrite utilizes all of the proven technology of our standard version, but more than doubles the amount of snubbing force for larger and heavier dipper doors
- Patent pending design utilizes larger pressure relief valves to eliminate pressure spikes and reduce stress on dipper and shovel structures
- Dual operation dampens dipper door opening and closing for more controlled flow of material into truck
Raised heel (zero degree lip)
- Enables the shovel operator to maximize hoist pull and digging forces at leading edge of the lip to achieve optimal fill factors
- Additional clearance between the heel of the dipper and material being mined reduces wear on the heel