Assarel-Medet Liebherr R 9350 E: design and haulage notes for mine engineers
Reviewed by Joe Ashwell
First reported on International Mining – News
30 Second Briefing
Assarel-Medet has taken delivery of a 300 t class Liebherr R 9350 E electric excavator for its Assarel copper mine at Bul in Bulgaria’s Pazardzhik province, the fifth large electric Liebherr excavator supplied to the company by Liebherr-Export and local partner Alki-L. The R 9350 E, powered by an electric drive rather than diesel, delivers zero on-site greenhouse gas emissions at the face, supporting lower ventilation demand and reduced fuel logistics for the open-pit operation.
Technical Brief
- Electric fleet concentration at Assarel mine reduces reliance on diesel storage and distribution infrastructure within the pit.
- Multiple high-voltage excavators at one operation implies substantial substation and cable routing design within the pit layout.
Our Take
Within our 1210 Mining stories, copper operations adopting pit electrification are still a minority, so Assarel-Medet running five 300‑t class electric units positions the Bulgarian mine toward the leading edge of trolley and grid-powered fleets rather than diesel-dominated norms.
For a single open-pit copper site in a region like Bulgaria’s Pazardzhik province, standardising on one 300‑t excavator platform from Liebherr typically simplifies parts stocking and maintenance training, which can materially reduce downtime compared with mixed-brand or mixed-class fleets tracked in our database.
Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.
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