Stingray Increases Ultra Class Excavator Payloads

The new cast lip for the ultra class excavator increased payloads by 10% and reduced dig energy reduction by 13%.


Hunter Valley, NSW


Digging Conditions
Varied Overburden

Hydraulic Excavator

Make & Model
Liebherr Ultra Class

The Challenge

Previous 47.5m³ bucket and GET combination were not achieving site production targets. Filling the bucket was problematic and payloads were significantly lower than target.

The Solution

CR delivered a Stingray cast lip, which was fitted into a 45m³ bucket. The Stingray cast lip system is designed to reduce dig energy which optimises state of the art production and payload monitoring tools.

The Outcome

Improved Safety

Reduced Cost

Decreased Shutdowns

The Impact

The customer exceeded their production targets immediately after fitting the new bucket and GET system.

  • 10% Increase in Payload
  • 13% Dig Energy reduction
  • Smaller bucket
  • Constant Cycle Time

Operators quickly commented on how much better the Stingray lip was to dig with, stating that it didn’t require as much ‘working or manoeuvring’ to achieve targets.


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