Crawler excavator R 9400 G6

for rockhigh payloaddiesel

Overview
The Liebherr R 9400 G6 is a heavy-duty hydraulic mining excavator engineered for continuous, high‑volume material handling. With a modular architecture and a design life target above 60,000 operational hours, the R 9400 supports repowering, retrofits and long-term upgrades. The machine can be specified with Cummins QSK50 (standard) or Liebherr D9812 V12 (option) powertrains; an electric drive (E‑Drive) is also available.

Highlights

• Design life > 60,000 operational hours
• Class‑leading payload capacity (+9% vs comparable machines)
• Optional one‑stop powertrain: Liebherr D9812 V12
• Modular design for repowering, retrofit and future upgrades

Powertrain
Engine model - Cummins QSK50 (standard)
Engine rating at 1800 rpm - 1,250 kW (standard)
Optional engine - Liebherr D9812 V12 (option) — up to 1,350 kW at 1800 rpm
Emissions - Tier 2 / US EPA Tier 4f / EU Stage V
Electric motor (option) - available (E‑Drive)

E‑Drive advantages

• No on‑site gas emissions
• Reduced service and maintenance costs
• Lower noise emissions
• Improved cycle times with electric drive characteristics

Hydraulic system
Attachment & travel drive pump - 4 × variable‑flow axial piston pumps × 751 l/min @ 320 bar
Swing drive pump - 2 × reversible swash‑plate pumps × 390 l/min @ 350 bar (closed‑loop circuit)
Maximum swing speed - 3.90 rpm

Backhoe attachment
Operating weight (backhoe attachment) - 345.50 t
Bucket capacity (1.8 t/m³) - 24.00 m³
Liebherr GET system (GP/HD/XHD) - Z140 / Z140 / Z140
Max. digging force (ISO 6015) - 965 kN
Max. breakout force (ISO 6015) - 1,000 kN

Face shovel attachment
Operating weight (face shovel attachment) - 353.00 t
Shovel capacity (1.8 t/m³) - 22.00 m³
Liebherr GET system (GP/HD/XHD) - Z140 / Z140 / Z140
Max. crowd force at ground level (ISO 6015) - 1,145 kN
Max. crowd force (ISO 6015) - 1,545 kN
Max. breakout force for shovel (ISO 6015) - 1,195 kN

Technical specifications

• Model: R 9400 G6
• Service life (design target): > 60,000 operational hours
• Operating weight (backhoe): 345.50 t
• Operating weight (face shovel): 353.00 t
• Bucket capacity (1.8 t/m³): 24.00 m³
• Shovel capacity (1.8 t/m³): 22.00 m³
• Standard engine: Cummins QSK50 — 1,250 kW @ 1800 rpm
• Optional engine: Liebherr D9812 — 1,350 kW @ 1800 rpm
• Attachment & travel pumps: 4 × 751 l/min @ 320 bar
• Swing drive pumps: 2 × 390 l/min @ 350 bar (closed‑loop)
• Maximum swing speed: 3.90 rpm
• Max. digging force (ISO 6015): 965 kN
• Max. breakout force (ISO 6015): 1,000 kN

Operational feedback
"We needed to find a machine that would provide better availability than the wheel loader while still matching the 240‑tonne truck. Liebherr came to the table with the R 9400. They also took the extra step to develop an optimised bucket for the machine. We’ve actually seen about a 40% gain in our production in the last three months." — Roy McKinstry, Production Manager, Trapper Mine, United States

Applications & variants
The R 9400 is specified for large‑scale mining and bulk material operations. Available variants include standard diesel (Cummins QSK50), higher‑power Liebherr D9812 option and E‑Drive zero‑emission driveline, plus tailored GET and bucket options for fleet compatibility.