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Roller sleeve

For a briquetting machine, the die holes on the roller sleeve are the forming cavities that determine the shape, size, and density of the finished briquettes.

Die holes on the roller sleeve

The roller sleeve is normally manufactured with many forming holes/cavities arranged evenly around its circumference. When the two rollers rotate toward each other, the raw material enters these cavities and is compressed under high pressure. As the rollers continue rotating, the compressed material is released as briquettes.

Key features of the die holes:

  • Briquette shape: The cavity design determines whether the product is pillow-shaped, oval, ball-shaped, rectangular, or another customized shape.
  • Briquette size: The dimensions of each die hole directly determine the approximate size of the finished briquette.
  • Production capacity: The number and arrangement of die holes affect the output of the machine.
  • Compression performance: Hole depth, cavity geometry, and roller pressure influence the briquette’s density and strength.
  • Material compatibility: The die design should be selected according to the raw material, moisture content, particle size, and required briquette strength.
  • Wear resistance: Because the roller sleeve operates under continuous high pressure and abrasion, the material and heat treatment of the sleeve are important for service life.

Customized die holes

For industrial briquetting applications, the die holes can be customized according to the customer’s requirements. We can customize:

Briquette shape → cavity dimensions → hole arrangement → roller diameter → working width → production capacity

A suitable die-hole design is particularly important when processing materials such as coal, charcoal, mineral powder, fertilizer, biomass, metal powder, and other industrial powders.

If you’re preparing this for your briquetting machine product brochure, a good title would be:

“Customized Roller Sleeve & Precision Die Holes for High-Pressure Briquetting”