What Are the Types of Cran eSafety Brakes?

In crane accessories, safety brake is one of the key components of the crane, which is used to ensure the safe operation of the crane and prevent accidents from occurring during the working process. According to different working requirements and mechanical design, there are several types of crane safety brakes used in crane accessories.

Electromagnetic Brake

Electromagnetic brakes are a common type of safety brake that achieves braking through electromagnetic suction. When current flows into the brake winding, the braking is achieved by electromagnetically pressing or clamping the brake pads against the brake wheel. Once the current is disconnected, the brake is released and the crane can move freely. Electromagnetic brake has the characteristics of fast startup, large braking torque, simple structure, etc. It is suitable for the occasions of frequent braking and fast startup.

Hydraulic Brake

The hydrodynamic brake is a type of safety brake that achieves braking by means of a hydrodynamic transmission. It uses fluid flow and resistance to achieve braking. When the brake is on, the fluid enters the inside of the brake and impedes the movement of the gear or clutch. The hydraulic brake has the characteristics of smooth transmission, smooth braking, and strong load adaptability, etc. It is suitable for the occasions where the crane needs frequent braking.

Friction Brake

A friction brake is a common type of safety brake that applies braking by friction. A friction brake usually consists of components such as brake pads, brake wheels and springs. When the brake is activated, the brake pads clamp the brake wheel by pressure, thus braking.Friction brakes have the characteristics of stability when braking, light weight, simple structure, etc., and are suitable for general cranes.

Magnetic Powder Brake

The magnetic particle brake is a safety brake that uses magnetic fluid braking.It controls the braking torque by changing the rheological properties of the magnetic powder. When the powder brake is energised, the powder becomes solidified and has a frictional force, thus braking. Conversely, when the powder brake is energised and disconnected, the powder becomes liquid and the brake loses braking power. Magnetic particle brakes are characterised by fast start-up and stable braking, and are suitable for cranes that require precise control.

Skeg Brake

The Skeg Brake is a common type of hydraulic brake. It achieves braking through the pressure difference caused by the flow of fluid. The Skeg Brake consists of a gear, brake pads, and a hydraulic cylinder. When liquid enters the hydraulic cylinder, the pressure difference caused by the flow of liquid causes the brake pads to clamp the gear, thus achieving braking. The Skeg Brake has the characteristics of smooth braking and simple structure, and is suitable for small and medium-sized cranes.

Torque Motor Brake

A torque motor brake is a safety brake that uses an electric motor to brake. When the motor is energised, the brake achieves braking by increasing the torque on the motor output shaft. The torque motor brake has the characteristics of large braking torque and easy operation, and is suitable for large cranes.

The above is a common type of safety brake in crane accessories and its characteristics are introduced. Crane accessories in the safety brake in the actual application plays a vital role, for the crane’s operational safety to provide a strong guarantee. When choosing a safety brake, you need to choose reasonably according to the crane’s working requirements, loads and environmental conditions to ensure the safe and stable operation of the crane.