Quality Control - Production Process

• Incoming source material is logged in per batch/unit from origin, and provided with traceable and unique lot-number.
  

• Depending on the ultimate purpose and destination of the diamond, lots are directed through the various channels of the operation; each lot can be definitively marked and followed through the complete operation.
  

• Various methods and technologies are used to sieve, separate, sort, table and (for certain applications) milled, rolled, and crushed depending on which grade of LANDS Superabrasives products is required.
  

• The various LANDS Superabrasives Product types may be further treated, and/or coated with nickel, copper or other coatings depending on the ultimate requirement of the users.
  

• Micron powder production line: various methods and technologies are used to obtain rigidly size-controlled microns. Source material is treated according to above steps and procedures. Appropriate techniques for cleaning and chemical treatment are used to obtain standard material ready for further processing. LANDS Superabrasives uses different micronizing technologies from sedimentation to centrifuge-technology amongst others. Strict procedures are followed to avoid contamination of the microns in any step of the process. After the micronizing and drying processes are completed, the appropriate post micronizing-treatment, such as treatment for use in electroplating, coating with Ni. etc., are applied.
  

• Various techniques are used to check diamond particle size. Laser diffraction, Electrical Sensing Zone, Image Analyzing are examples of some additional tests.
  LANDS Superabrasives currently applies Image Analyzing techniques to check the quality of microns. Additional Particle Size Analysis Systems are currently under review.
  

• Methods and technologies include sieving procedures using electroformed sieves according to ANSI B74.16, FEPA and ISO 6106. Bulk-density standards are according to ANSI B74.4-77. Magnetic contents of particles determined by magnetic analyzer. ANSI B74.19. Micron Size Std. IDA, FEPA 1997 and ANSI B74.20 are applied to determine compliance in grading of microns.