Energoakumulators
Spring brake actuators for semi-trailers
Spring brake actuators, also called energoakumulators, are the brake chambers that apply the parking and emergency brake on a semi-trailer. Each unit uses a strong internal spring, so it holds the trailer even without air pressure. Because this is a safety-critical part, it must match the trailer’s brake system and chamber size, such as 16/24 or 24/30. The right unit also depends on the axle make, such as KRONE or SAF. Therefore, always match the OEM reference before ordering.
Spring brake actuators — frequently asked questions
Show FAQ
What is an energoakumulator? It is a spring brake actuator — a brake chamber that applies the parking and emergency brake using a strong internal spring. Therefore, it holds the trailer even without air pressure.
What do 16/24 and 24/30 mean? These are chamber sizes. The first number is the service chamber and the second is the spring section, so the size must match the trailer’s brake specification.
How do I choose the right one? First, identify the axle make and chamber size. Then match the OEM reference, because units vary between makers such as KRONE and SAF.