About Us

Essa North America

Established in 2008, Essa North America LLC (ENA) incorporated a philosophy of following the Theory of Sampling (TOS) and Sampling Practices taught by the principles of well-known expert Dr. Francis F. Pitard. Our mission is to provide solutions for sampling, sample preparation, and testing that are true to the principles of sampling correctness through innovation, while providing top quality equipment at lower costs with 100% customer satisfaction.

ENA has partnered with Australian manufacturer Alsto Pty Ltd., as their preferred North America and global representative. Alsto offers more than 100 years of collective experience in design, manufacturing, and supply to the mineral laboratory mining industries for ferrous and non-ferrous metals and materials.

Please see the list of equipment and tools we currently have available including:

  • Pulverizing Mill Grinding Media
  • Pulverizing Mills
  • Drying Ovens
  • Fire Assay Products
  • Jaw and Rolls Crushers
  • Lab Furniture and Accessories
  • Metallurgical Equipment
  • Particle Sizing
  • Sample Collectors and Dividers
  • General Spares – Electrical, Fasteners and other OEM Equipment and Parts

The Theory of Sampling and Sampling Practice, Third Edition is a step-by-step guide for anyone challenged by the many subtleties of sampling particulate materials. It is the only comprehensive document merging the famous works of P. Gy, I. Visman, and C.O. Ingamells into a single theory in a logical way. As a result, it is the most advanced book on sampling that can be used by all sampling practitioners around the world.

Many complex features are covered by an entire chapter or several chapters, such sampling of precious metals

  • Sampling of trace constituents in high purity materials
  • Sampling the environment
  • Sampling for the moisture determination
  • Sampling for particle size distribution
  • The concept of equi-probabilistic sampling
  • Correct design of sampling systems
  • Sampling for metallurgical accounting and process control
  • Taking advantage of existing chronological data
  • Proportional sampling and bed blending

The third edition is a valuable guide for mineral processing engineers, metallurgists, geologists, miners, chemists, environmental scientists, and academics. The book is set in a pragmatic way ideal for self-teaching critically important subjects that have been overlooked for too long by universities and colleges. The new edition covers recent knowledge, acquired during the past 20 years, accumulated by the many World Conferences on Sampling and Blending. As a result, many notations are new. New chapters have been added to emphasize chronostatistics. Visman and Ingamells’ works, and the importance of sampling for trace constituents. 

Dr. Pitard is a well-known authority on sampling theory and practice. He has a Doctorate of Technologies from the University of Aalborg. He is the recipient of the famous Pierre Gy’s Gold Medal for excellence in promoting and his teaching of the Theory of Sampling all around the world.

SamPrep

SamPrep began as a commissioning and preventative maintenance specialist for equipment tailored to the mineral laboratory mining sector, focusing on both ferrous and non-ferrous metals. The company works with reputable brands like Rocklabs and Alsto and has since expanded its offerings to include HF-Innovation’s full range of Laboratory products for the North American market.