Boliden Garpenberg Bredel pumps: reliability and slurry handling lessons for engineers
Reviewed by Joe Ashwell
First reported on International Mining – News
30 Second Briefing
Boliden’s Garpenberg underground mine in Sweden is deploying Bredel peristaltic hose pumps from Watson-Marlow Fluid Technology Solutions for abrasive slurry duties in zinc, lead, silver, copper and gold ore processing, replacing conventional centrifugal units in several circuits. The hose pumps handle high solids and chemically aggressive process streams without seals or valves, reducing leakage risk and lowering water and reagent consumption. For plant engineers, the move points to lower unplanned downtime and more predictable maintenance intervals in critical dewatering and tailings-transfer applications.
Technical Brief
- Peristaltic hose pumps isolate process fluid within a reinforced hose, eliminating rotating wetted components.
- Absence of mechanical seals removes a common leakage and spray hazard around high-pressure slurry lines.
- Dry-running tolerance and self-priming behaviour reduce risk of cavitation-related vibration and pipework fatigue.
- Pumping action is fully reversible, allowing rapid line clearing to mitigate blockage and overpressure incidents.
- Fixed, low-speed operation for abrasive duties limits heat generation and hose rupture risk versus high-speed impellers.
- Maintenance is largely confined to scheduled hose replacement, reducing live-line interventions and confined-space exposure.
- Enclosed pump casings contain any hose failure, limiting operator contact with corrosive or metal-laden slurries.
Our Take
Garpenberg’s use of Bredel pumps sits alongside Boliden’s autonomous haulage work at the same Swedish zinc mine with Volvo Autonomous Solutions (June 2026), signalling that this site is becoming a testbed for layered automation and reliability upgrades rather than just isolated equipment swaps.
With Boliden exploring a major zinc portfolio expansion via talks over Nexa Resources, incremental reliability and sustainability gains at Garpenberg in Sweden strengthen its operational credentials in zinc ahead of any large corporate move, which can matter in regulatory and stakeholder scrutiny of base metals growth strategies.
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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