Two Liebherr 984 Excavators & Caterpillar 777C-D Dumpers Move Overburden - Sotiriadis/Labrianidis

Heavy Equipment in Action at Magnesite Quarry – Liebherr 984 Excavators & CAT 777 Dumpers Move Overburden Efficiently

📍 Location: Magnesite Quarry – Precision Meets Power
In today’s 4K video, we’re on-site at a large-scale magnesite quarry, watching a highly organized team remove overburden to expose the valuable ore layers beneath. This phase is crucial in mining, requiring efficient equipment, expert coordination, and tough machines built for the task.

The stars of the operation:
• Two powerful Liebherr 984 hydraulic excavators
• A fleet of eight Caterpillar 777C and 777D dumpers
Together, they create a smooth excavation and material transport chain that keeps the operation running around the clock.

The Process: Removing Overburden to Reach the Ore

Why remove overburden?
Overburden is the rock and soil that covers the magnesite deposits. It must be blasted, loaded, and removed before the ore extraction begins. Speed and precision in this process affect the productivity and cost-efficiency of the entire quarry operation.

Liebherr R 984 – Heavy-Duty Quarry Excavator
The Liebherr 984 is a mining-class excavator with incredible digging force, perfect for loading blasted rock in high-volume operations.

Liebherr 984 Key Specs:

Operating Weight: ~120,000 kg (264,000 lbs)
Engine Power: ~610 hp (455 kW)
Bucket Capacity: 6.0 – 7.5 m³ (7.8 – 9.8 yd³)
Application: Heavy excavation, mining, quarry loading

With its massive bucket, the 984 can fill a CAT 777C/D in just a few passes, ensuring that trucks are loaded quickly and downtime is minimized.

Caterpillar 777C & 777D – The Workhorse Dump Trucks
The 777C and D are mid-sized off-highway haul trucks designed for mining and quarry operations. Known for their durability and payload efficiency, they’re ideal for repeated, high-volume runs.

CAT 777C/D Specs:

Rated Payload: 85 tons (77 metric tons)
Engine Power: ~870 hp (648 kW)
Top Speed (Loaded): ~65 km/h (40 mph)
Application: Quarry haulage, mining dump trucks

Having eight of these machines running in rotation means constant productivity, reduced waiting times for excavators, and optimized loading cycles.

Teamwork & Organization: What Makes This Quarry Work
The video doesn’t just show machines — it showcases human coordination:
• Excavators working in sync
• Dumpers rotated and aligned perfectly
• Skilled operators and spotters managing safety and efficiency
• A clean, organized quarry layout

What You'll See in the Video
• Liebherr 984 excavators loading blasted rock
• Continuous flow of CAT 777C and 777D dump trucks
• Aerial drone shots showing the scale of the quarry
• Ground views of tight coordination between machines
• Raw machine sounds and real operational footage – no music, no fluff

Check out https://megamachineschannel.com/spec for heavy machinery specs

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