Concrete Crackers & Pulverisers

Primary Pulverisers – For crushing and removing concrete in-situ.

These pulverisers, or Demolition Crushers, are designed to satisfy primary demolition needs, with a particular care in the raw material choice. Primary pulverisers demolish concrete in place, often at great height. The do the primary, or initial cutting and crushing of the material, bringing it down to ground level for secondary pulverising, if required.

They commonly have the following characteristics:

• Structure entirely made from specialty, hardened steel.
• A Pressure Relief Valve system, to protect the crusher from high pressure.
• Two large cylinders to protect the rod from damage.
• Hydraulic rotation, to allow for access to tight area.
• Interchangeable teeth.

These are the units most seen working on multi-story buildings, demolishing the initial structure and bringing it to ground level. A good example of this is the OSA Demolition RS Series and the Shearcore FC series units.

Secondary Pulverisers – For reducing the size of concrete after it is initially demolished.

These pulverisers work at ground level, and are often fixed, although they may be rotating if the application requires it. They are designed to reduce the concrete to a more manageable size, for either transport, re-use on site. They are also often seen in recycling yards, preparing material for further processing, via crusher, etc.

They commonly have the following characteristics:

• Structure entirely made from specialty, hardened steel.
• A Pressure Relief Valve system, to protect the crusher from high pressure.
• Reversed cylinder to protect the rod from accidental strikes.
• Interchangeable blades & teeth.

These units are almost exclusively seen on the ground, pulverising removed concrete into smaller sized pieces. An excellent example of a Secondary Pulveriser would be the OSA FPV Series.

Multi-Function Primary/Secondary – For use in both primary and secondary applications.

As suggested, there are also pulverisers designed to work in both primary and secondary applications, and more. These multi-combination units often also allow for different types of head/blades to be fitted, allowing one tool, to perform the role of several.

They commonly have the following characteristics:

• A structure entirely made in HARDOX and WELDOX
• Innovative PRV (Pressure Relief Valve) system to protect the crusher from high pressure.
• Two powerful reversed cylinders to protect the rod from accidental damage.
• Some models have a regenerative installation.
• Hydraulic rotation.
• Interchangeable Cutting Tools, to suit various applications.

These units are used in a variety of applications, normally dictated by the head or “kit” fitted. A great example would be the MC Range, by OSA demolition, which are able to be used in all manner of concrete and steel cutting, as well as pulverising.

FAQ

What Is A Concrete Pulveriser?

A Concrete pulveriser is a hydraulic excavator attachment, used in the cutting and crushing of concrete.

What Types Of Pulverisers Are Most Common?

Most concrete pulverisers fall into three categories, Primary, Secondary and Multi (for both primary and secondary use)

Where Are Concrete Pulverisers Used?

Concrete pulverisers are used in a range on industries, including demolition, recycling, etc.

What Sizes Do Concrete Pulverisers Come In?

Pulverisers come in a range of sizes, most commonly to fit excavators from 3t to 100t+ excavators.

Can Concrete Pulverisers Cut Steel Reinforcement?

Quality pulverisers can often cut through steel concrete reinforcement.

How Much Do Concrete Pulverisers Cost?

Rental & sale pricing on pulverisers varies greatly, according to size, strength, and quality.

How often do tips/blades need replacing?

This is dependent on use and quality of wear parts. It should be noted that good quality wear parts can last over twice as long as cheaper, lower quality parts.