Ditting Special Steel Flat Burrs
Ditting Burr Production
Ditting Special Steel Flat Burrs



Flat Burrs

Flat burrs are one of the most common burr types used in coffee grinders. They consist of two flat discs with sharp teeth arranged in specific patterns and facing each other.

The shape and size of the burrs and the distance between them affect the grind size and consistency. Flat burrs are known for producing a uniform and consistent grind, making them popular within communities of professional baristas and coffee enthusiasts.

Our “special steel” burrs contain a higher carbon content to keep the burr’s performance over its lifetime and undergo an industry-leading refinement process.

  • Cutting: steel rods/bars made from special steel are cut into discs of equal width.
  • Annealing: the discs then undergo heat treatment to eliminate internal material stresses to allow for easier machining and to prevent post-hardening deformation.
  • Machining: after annealing, the discs are precision machined to form the “burr” geometry.
  • Hardening: the burrs are then hardened, which is key to increasing lifetime resilience.
  • Blasting and other deburring: our burrs are blasted or deburred to prevent settling behavior or shard and metal pieces migrating into coffee grinds.
  • Regulatory conformity: As a final step, our burrs undergo a material migration test for food safety and are listed in each grinder’s certification report.

The crucial perfect match between the motor and the burr set is not ensured when replacing your burrs with imitation or non-Ditting burrs. The burr replacement with unoriginal burrs impacts performance, lifetime, liability and safety as well as warranty.

Special Steel Characteristics:

  • Hardness: 64-66 HRC (Rockwell)
  • Settling-in time: approx. 50 kg
  • High quality and precise grinding
  • High grind speed output
  • Medium lifetime
  • Customizable geometry, grinding capabilities from espresso to French press

Available Diameters:

  • Ø 54 mm
  • Ø 64 mm 
  • Ø 65 mm
  • Ø 80 mm
  • Ø 120 mm
  • Ø 130 mm
  • Ø 140 mm
  • Ø 180 mm

Target Grind Life (median setting)*:

  • Ø 54 mm: approx. 600 - 1'000 kg
  • Ø 64 mm / 65 mm: approx. 1'000 - 1'500 kg
  • Ø 80 mm - 180 mm: approx. up to 40'000 kg

*All values measured with standard configuration under laboratory conditions. Subject to change without prior notice.

  • Reach out and speak with our product experts to see how Ditting burrs can fit into your product vision