Three extra tonnes per swing means 25 trucks loaded per hour instead of 18
Operation: Hornsfel blue metal aggregate quarry
Excavator: CAT 372 Bucket: XMOR® BHC 80 5.1 m3
Benefits: Faster loading, more tonnage per hour, less truck movements
Lima South Quarry Group in Australia operates a quarry that supplies hornsfel blue metal aggregates, an abrasive fine-grained rock with high hardness used for rail ballast, concrete, asphalt and sealing applications.
The quarry has a CAT 372 excavator which used to have a very standard 3.5 m3 bucket. When it was time for replacing this worn-out bucket, they wanted to maximize production while minimizing wear and maintenance.
Lima learned about XMOR® buckets from the ONTRAC Group, which offered the XMOR® BHC 80, a 5.1 m3 bucket that weighs around 3,720 kg. This would give them an increase of 1.6 m3 capacity per bucket, which equated to around an extra 3 tonnes per swing.
Benefits confirmed beforehand
The current bucket could fill a truck in around 8 to 9 passes. With the XMOR®, it could do it in 4, sometimes 5 passes. This had a flow-on effect throughout the quarry, as certain jobs could be run with one less haul truck. It also cut down on the amount of overtime, as the load and haul team could move the same amount of material in 8 hours instead of 12.
Results in numbers
Reduced maintenance
XMOR® buckets are designed with an Inverted Keel that reduces drag and wear on the bucket’s floor when loading, and Curved Heel Shrouds which also reduce wear. Lima South has seen a reduction in maintenance after switching to the XMOR® BHC80 bucket.
“We’ve had no dramas with it, and ONTRAC has been on site making sure it’s doing everything it should be,” says Vegter.
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