What is a poker vibrator?

Every day, I get loads of calls from customers who want to know everything about how to use our machines. Sometimes they’re simple, but interesting questions that don’t have quick answers. So I thought it would be a good idea to answer those questions via this blog. In this entry, I’ll answer the question:

What is a poker vibrator?

The simplest answer is: a poker vibrator is a machine to compact concrete.
But that answer doesn’t do justice to the complexity of a poker vibrator. There are so many different types and versions available, and at first sight it’s often not clear what the difference is. At Lievers, we differentiate between the following types:

  • Mechanical pendulum poker vibrator
  • Mechanical rotating poker vibrator
  • High frequency 42V poker vibrator
  • High frequency 230V poker vibrator
  • Pneumatic poker vibrator
  • Hydraulic poker vibrator

Each of these types performs the same function: compacting concrete. But they all have different ways of doing it. In future blog posts, I’ll explain the specific characteristics of each type of poker vibrator.

 

Main components of a poker vibrator

Every type of poker vibrator has a component that inserts into the concrete mix. This metal cylinder is referred to as the ‘tip’, and contains the mechanism that generates the vibrations.

Voorbeeld van een trilfles.

This tip is often connected to the other components via a rubber hose, or ‘shaft’.

Poker vibrators used for compacting floors are often equipped with a short shaft to keep the machine lightweight and make it easier to carry and insert into the concrete. This type is also referred to as a ‘hand poker vibrator’, because you can hold it while compacting the concrete.

voorbeeld van een trilnaald met korte slang.

If you want to pour a wall or pillar, then you probably want to use a tip with a longer shaft. The longer shaft allows you to stand on top of the wall form and insert the tip deep into the concrete, so that it can compact the mix deep inside the form.

Voorbeeld van een trilnaald met lange slang.

In a mechanical poker vibrator, the shaft connects the tip to a drive mechanism. Inside the shaft is a mechanical drive spring that powers the vibrator mechanism in the tip. Depending on the type of drive, the machine may also have a power cord.

In a high-frequency poker vibrator, the shaft connects the tip to the switch housing. This is because in a high-frequency poker vibrator, the drive mechanism is integrated into the tip. The shaft only holds the power cables for the electronic vibrating mechanism in the tip. The on/off switch to operate the poker vibrator is located in the control unit.

Voorbeeld van hoogfrequent trilnaald.

In the next few blog posts, I’ll go into more detail about the differences between the types of poker vibrators and the pros and cons of each type.