Ajutech Oy launches rotary drum crushers

Ajutech Oy of Toysa, Finland, launched rotary drum crushers to be used with excavators. The new rotary drum crushing technology allows contractors to crush hard materials, such as demolition and concrete waste materials.

Viper branded screening buckets enable reuse and separation of different materials and fragmentations allowing in-situation usage of the otherwise wasted materials. The issue in many cases, especially in demolition worksites, has been crushing. Large mobile crushers need heavy transportation vehicles and are not practical to use often in limited space worksites with relatively small quantities of material to be crushed.

The Viper crushing bucket attachment is designed to be light weight and moved and used together with the excavators as base machines. The base machine can be used when just changing the attachments. The downtime is designed to be minimized, only one operator can do several jobs and several attachments are used with same excavator.

Viper introduces two slow moving rotary drum crushing buckets: model VPH 21—one drum version for excavator classes 20 to 30 tons, and model VPV 22—two drum version for excavators larger than 30 tons in weight.

Viper crushing buckets’ typical applications are seen in demolition worksites crushing mixed waste materials, such as concrete (with or without steel bars), red/concrete bricks, tarmac and limestone. The Viper crushing buckets are designed to answer challenges such as:

• concrete crushing with or without steel bars
• capacity in mixed fragmentations
• ability to crush tarmac and asphalt
• designed so soft materials, such as wood or small fragmented materials, are not slowing down the effectiveness
• bolted wear steel parts or hard metal buttons