For one of our regular customers, we produced brake drums with an inner diameter of 500 mm, made entirely of GG25 gray cast iron. The components were cast using the sand casting process , utilizing modern jolt-squeeze machines. This technique ensures optimal distribution and compaction of the sand, resulting in a strong, precise casting. The inside of the brake drum is formed with a specially manufactured sand core.
After casting, the brake drums are carefully machined to the correct inner and outer diameter and all mounting holes are CNC machined and drilled with high precision.
This is followed by extensive quality control : with precise measurement reports and material tests, we guarantee that every brake drum meets the highest requirements before it is delivered.