Sealless Magnetic Drive Pumps for Mining Applications

Not all pumps are suitable for mining operations. First, technicians need quality, reliable pumps to support the extraction process. Second, mining applications can generate hazardous byproducts, which must be handled with extreme caution. For safe, effective mining, sealless magnetic drive pumps are key. Built for heavy-duty chemical applications, Finish Thompson’s mag-drive pumps are the premier solution for a full range of mining applications.

Typical Applications

  • Unloading of tank trucks and rail cars
  • Transfer chemicals from bulk storage to process
  • Transfer chemicals from bulk storage to day tanks used in water treatment


Magnetic Sealless Pump for Mining Applications Offers Heavy-Duty Solution for Mineral Extraction

Nearly all manufactured goods on the market today contain some mineral component. Modern electronic devices typically contain more than 35 minerals.

Nearly all manufactured goods on the market today contain some mineral component. Modern electronic devices typically contain more than 35 minerals. With such high demand, the mining industry has never been more crucial to product development.

To meet market needs, mining professionals must utilize products that can withstand the harsh conditions of the industry. For example, these operations require the use of corrosive liquids for mineral extraction, and many mining processes create hazardous fluids as a byproduct. Due to the nature of the chemicals involved, not all solutions are suitable.

To handle these heavy-duty applications, mine operators are turning to Finish Thompson’s powerful sealless magnetic drive pumps. Common fluids encountered in the mining industry include corrosive chemicals such as hydrochloric acid, sulfuric acid, nitric acid, cyanide, and sodium hydroxide. Finish Thompson’s sealless magnetic drive pumps are ideal solutions for conveying these challenging materials and improving the safety and productivity of this industry.

Hazard Reduction

In Chile, managers of a copper mine were using mechanically sealed pumps to transfer concentrated sulfuric acid. The seals developed leaks, and the company was experiencing frequent fluid spills and hazardous environmental situations. Significant resources were diverted to pump repairs and cleaning of the surrounding environment, which meant increased worker safety risk and decreased productivity.

Gilberto Narváez Cardona, Finish Thompson Regional Manager for Latin America, has been working with the mining company to select the best pumps for their harsh conditions. Gilberto reports, “They switched to Finish Thompson’s ULTRAChem® mag drive pump for this application. Its sealless mag-drive design ensures that there are no leaks, and its ductile iron construction with standardized dimensions make it a robust solution for mining operations.”

Gilberto adds, “The mine operators have been very pleased with the performance of the mag drive pump, the low maintenance costs, and the ease of changing spare parts compared to competitors’ pumps that they have used in the past.”

Reliable Operation

A multi-national chemical manufacturer headquartered in Asia also needed a resilient solution, for the separation and refinement of rare earth elements used in magnet production. This procedure requires managing hydrochloric acid, sodium hypochlorite, sodium hydroxide, and sulfuric acid at various stages of the magnet manufacturing process.

In the past, the company used a competitor’s pump for this application. “They then discovered they could get faster delivery and a better value by choosing Finish Thompson’s ULTRAChem sealless magnetic drive pumps,” explains Sieng Huynh, Finish Thompson Regional Manager. “Plus, Finish Thompson pumps are ideal for handling the many corrosive substances that are needed for the separation, refinement, and sintering processes involved with their manufacturing.”

The sealless magnetic drive pumps have been in place for nine years of successful operation. Huynh notes, “Based on the results of the application and their satisfaction with the products and services, I’d say the pumps are a perfect fit.”

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Pump Details

Magnetically coupled, sealless centrifugal pumps. While NOT manufactured from FDA compliant materials, Finish Thompson DB Series and SP Series pumps are designed from the ground up to pump corrosive chemicals.

  • No mechanical seal – Powerful rare earth magnetic drive system eliminates the troublesome mechanical seal.
  • Corrosion resistant – Engineered for the most aggressive liquids, manufactured from polypropylene or PVDF.
  • Run dry ability – Makes them less prone to operator error or system upset.
  • Self-priming option – SP Series pumps can lift fluid from as deep as 25 feet (7.6 meters) below the pump or can pull liquid out of the top of a tank eliminating through-the-sidewall bulkhead fittings.

  • Multi-stage design – to produce much higher heads at lower flow rates than similarly sized single-stage pumps.
  • Performance – Heads up to 300 feet (91.5 meters) are possible, with a minimum flow rate of one gpm (0.23 m3/hr) and a maximum flow rate of 69 gpm (15.7 m3/hr).
  • No mechanical seal – Powerful rare earth magnetic drive system eliminates the troublesome mechanical seal.

Finish Thompson drum pumps are extremely versatile and are not just for use in in drums. A wide range of tube lengths allow them to be used in drums, barrels, totes, IBCs (intermediate bulk containers) and other container sizes.

PP, PVDF or 316SS tubes – Select based on your application
Built-in hose and cord clips – Specific models
ODP (open drip proof), TEFC and air motor drive options – lithium ion battery powered motor on select models
PF Series
High performance sealless pump

  • Unique double suction impeller provides high flow rates and high discharge pressure
  • Viscosity up to 2,000 cP
  • Acids, bases, plating solutions, water treatment chemicals, cleaners

EF Series

  • An ideal replacement for hand pumps
  • Integral strainer (EFP/EFV only)
  • Built-in hose, cord clips (EFP/EFV only)
  • Light acids and bases, plating solutions, sodium hypochlorite, cleaners, coolants

SF Series

  • Sealless high-performance design for maximum uptime
  • Dual impeller options provide either high flow or high head
  • 40 mm (1.6”) tube diameter to accommodate smaller bung openings
  • Five distinct models to suit a full range of applications