About Us

Precision Samplers, Inc. (PSI) is a privately held corporation located in Charleston, WV. Incorporated in 1979, PSI has been a leading manufacturer of mechanical sampling systems for over 40 years.  During that time, PSI has provided over 300 systems which are in operation in the United States, Canada, China, Taiwan, and South America.

PSI markets its various products through direct sales to end users, major contractors, and overseas agents.

PSI specializes in the turnkey design, engineering, fabrication and installation of three categories of sampling systems:  (1) Auger Sampling Systems for sampling stationary material in trucks, railcars, and stockpiles; (2) Conveyor Belt Sampling systems including the Rotary Sweep Belt Sampling Systems and Conventional Cross-stream Sampling Systems; and, (3) Mechanical Sub-Samplers for laboratory applications and a third or final stage cutter of a mechanical sampling system.

PSI’s additional services include the operation, maintenance, service, and inspections of sampling systems.

All PSI Mechanical Sampling Systems are designed in accordance with ASTM standards D-7430 Standard Practice for Mechanical Sampling of Coal.

Precision Samplers Precision Brochure