Internal concrete vibrators come in two basic types

The internal concrete vibrator is an effective tool for making concrete surfaces smooth and level. The vibrator works by embedding itself in the concrete for about 10 seconds. It vibrates at a frequency of 1 to 3 inches per second. The tip of the vibrator should be at least six inches into the previous layer of concrete. As soon as the vibrating process is completed, the surface of the concrete will be lustrous and smooth.

There are two basic types of concrete vibrators. The internal concrete vibrator and the external concrete vibrator are each ideal for different applications. Internal vibrators are more convenient because they don't require a perfect surface, while external vibrators are better suited for applications with rebar. They are also equipped with different frequencies and amplitudes. For example, an internal concrete vibrator is a better choice for a concrete mix with a high proportion of mortar than a stiff one.

An internal concrete vibrator consists of a steel closed-round tip that is connected to an electric motor through a flexible hose. The vibrating head is inserted into the poured concrete to disperse cement fines, remove air bubbles, and smooth out irregularities. When used properly, internal concrete vibrators produce a smoother and more durable concrete.

Internal concrete vibrators come in two basic types: flexible-shaft and motor-in-head. The main difference between these two types is where the power unit is located. An internal concrete vibrator with a motor located inside the head has a more flexible shaft than an external one, but this is a disadvantage when used in areas with heavy rebar. In these cases, the head of the machine may get caught in the reinforcing cage.