PTI

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Toll Processing Capabilities

Jet Milling

It really depends on the material, but PTI can jet mill most materials to 125 microns and finer. If the feedstock is not very friable the material can be jet milled a little coarser.

The type of jet mill we use generates a distribution that is “stacked” towards the coarse end and does not create a large amount of, sometimes unwanted, fine material. If the fine particles generated are a concern we can use a secondary air classification step to remove those particles. Many of our jet mills have internal classifiers, which allows for a precise cut point on the coarse end.

All of our jet mills feature a ceramic aluminum lining to prevent iron contamination during the jet milling process. Furthermore, our toll processing rooms operate under negative pressure to prevent cross contamination. As an added precaution our air compressors are humidity controlled to prevent adding heat or moisture to the powder processing process.

Air Classification

This toll processing option works well for defined cut points in product. We have machines capable of producing efficient cut points from 3 microns to 45 microns. We also have the flexibility to add a cyclone to make an intermediate product. As an example: we have a customer where we produce three products from a single job. We are able to make a Nominal 0-3 micron product from the bag house fines, a Nominal 1-5 micron product from the Cyclone, and a Nominal 2 – 10 micron product on the coarse collection side. We can tailor specific targets on all three collection points based on how we set up the machine.

Hammer Milling

It really depends on the material, but this pulverizing method is effective for coarse grinding materials to Nominal 140 mesh to 5 mesh product size. This process is typically used in conjunction with a vibratory screening process.

Vibratory Screening

This toll processing option works very well for flowable materials and is effective from 400 mesh to 5 mesh.

Blending

Ribbon Blenders

  • This blender is ideal for dry or wet dry (spraying liquid onto dry powders during the blending process) campaigns needing to be homogeneously blended.
  • These blenders are best for 1,000 pound to 4,000 pound batch sizes.
  • This blender can produce similar, accurate batches consistently.
  • This blender can produce simple or complex formulas.

V – Blender

  • This blender is best for 50 pound to 600 pound batch sizes.
  • This blender can produce similar, accurate batches consistently.
  • This blender can produce simple or complex formulas.

Lab Blenders

  • These blenders are best for research and development quantities as well as small batch sizes.
  • The capacities for these blenders range from a few pounds up to two hundred pounds per batch depending on the blender utilized.
  • These blenders can produce similar, accurate batches consistently.
  • These blender can produce simple or complex formulas.

Jaw Crusher

This machine will crush feedstock approximately three inches tall by five inches wide by six inches in length. Feedstock can be in chunk or block form. Opening can be as small as one-eighth of an inch.

Rotary Crusher

This machine is a great option for softer, friable materials in larger chunks needing to be reduced small enough to be fed into other processes. This works great for friable resins and similar material.

Please contact us by phone, email, or use the request quote form found on this website to discover the advantages of toll processing at PTI.