THE JOHN B. LONG COMPANY, LLC (JBLCo) is THE leading manufacturer of automated sampling equipment for bulk material sampling worldwide.

Conceived in the mid-1980’s by mining equipment industry pioneer and innovator, John B. Long, JBLCo’s CLEAN SWEEP® Sampling System and components accrued 24 patents and set new standards for the state-of-the-art in bulk material sampling worldwide.

Today, there are over 1,000 CLEAN SWEEP® sampling equipment installations in 21 countries sampling coal, aggregates, calcined coke, ores, wood chips, and a wide variety of other bulk materials from conveyors ranging from 24” to 96” in width.

In addition to its original pneumatically powered primary sampling equipment, the CLEAN SWEEP® family of products include electrically powered AutoSampler™ and QC360™ primary samplers, SampleMill™ crushers and a full line of secondary sampling systems, accessories and controls.

JBLCo provides support to its customers from its 21,000 square foot manufacturing and warehouse facilities in Knoxville, Tennessee USA offering –

  • Integrated Manufacturing
  • Research and Development
  • Engineering and Design
  • Installation and Installation Assistance
  • Parts & Service
  • Attended and unattended weighing systems
  • Complete system integration of your PLC controls