Liebherr 984 Excavator Loading CAT 777 Dumpers at a Magnesite Quarry – Overburden Removal by Ergon
⛏️ Today’s Video: Magnesite Quarry Operations with Mega Machines
In today’s video, we’re at a magnesite quarry where the removal of overburden is in full swing. The Liebherr 984 hydraulic excavator is at the center of the action, loading blasted rock material into Caterpillar 777C and 777D off-highway dump trucks.
This critical phase of quarrying clears the way to reach valuable magnesite ore, and every scoop counts.
The heavy machinery on site belongs to Ergon, a reputable company with decades of history in large-scale earthmoving and mining projects — owned by the Sotiriadis and Labrianidis families, two names well known across the Greek construction and mining sectors.
🚜 Excavator Spotlight: Liebherr R 984
The Liebherr 984 is a powerhouse designed for tough quarry and mining work, capable of moving massive volumes of material with every pass.
🔧 Key Specs:
• Operating Weight: ~120,000 kg
• Engine Output: ~610 hp (455 kW)
• Bucket Capacity: Up to 6.5 m³
• Application: Overburden removal, bulk rock loading
In this operation, it’s perfectly paired with 777-series dumpers, loading them with precision and speed to keep the workflow continuous.
🚛 Trucks in Action: Caterpillar 777C & 777D
The CAT 777C and 777D are legendary off-highway haul trucks, built for high-production environments like mining and quarrying.
✅ Specs at a Glance:
• Payload Capacity: ~85–90 tons
• Engine Power: Up to 938 hp (777D)
• Designed for:
o Fast hauling of loose rock
o Durability on rough terrain
o High efficiency with large excavators
These trucks receive full loads of blasted material and transport it away from the excavation face, opening the way to uncover the magnesite ore below.
🏢 Behind the Operation: Ergon Company
This project is managed by Ergon, a respected Greek contractor specializing in earthworks, quarry operations, and mining logistics. With deep roots going back decades, the company is led by the Sotiriadis and Labrianidis families, both known for:
• Investment in state-of-the-art equipment
• Highly skilled operators
• Proven expertise in large-scale excavation projects
• Operating in challenging environments across Greece
Their team’s efficiency and experience are clearly seen in this video — from excavation to haulage.
🎬 Watch Now – Uncovering Ore with Power & Precision
This video captures a critical phase of quarrying where heavy machinery clears overburden to access valuable minerals. The pairing of the Liebherr 984 and CAT 777 haul trucks demonstrates pure mining efficiency — and the Ergon team’s decades of expertise make it all happen seamlessly.
Hit play and experience real-world excavation and transport at scale.
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