Reply To: ACC Fan Blade cracks

Adam Dawe

Hello Joshua,

Just to confirm, are these cracks on the fiberglass shaft or the blade portion? We are currently replacing all of our Cofimco blades after less than 6 months operation, after it was discovered that the clamp blocks that hold the shaft at the hub were installed upside down, resulting in incorrect blade angle from the hub and increased stress on the shafts right at the edge of the metal reinforcement. We had numerous cracked shafts and no confidence in the reliability of the existing blade shafts, even after correcting the position of blades with no visible cracking.You can contact me at if you would like to discuss further.

Adam Dawe