Demolition without interruption

Published 4/3 at 11:45

Downtime on the construction site is an unpleasant and unnecessary cost factor that every contractor would prefer to simply cancel. When working with excavators and loader cranes with attachments such as grabs, the main risk is tearing off the hydraulic hose or damaging the piston rod, especially during heavy work such as stone setting or demolition.

To help overcome this, DMS Technologie from Fürth/Odenwald, has developed a demolition grab that almost completely eliminates these cost factors. Its special feature lies in its patented hydraulic cylinder developed by DMS. The sophisticated design has a fully encapsulated piston and internal oil routing without hydraulic hoses located in the working area and has been developed to reduce downtimes and repair costs.

The advantages of the patented hydraulic cylinder are particularly evident in demolition work, because nowhere are the demands on the attachment are as contradictory. On the one hand, the material is sorted very precisely so that it can be reused, while on the other hand, raw forces are at work. Thanks to the durable and low backlash bearings, the necessary precision is maintained over the long term despite the adverse working conditions and the usual mechanical end stops can be dispensed with. This is said to prevent overbite even during demolition. 

Sorting light building materials such as roof battens and glass wool remains a challenge, but the grab also scores points for rough work thanks to the sophisticated design of the hydraulic cylinder. The complete encapsulation of the piston means that it is optimally protected against falling concrete parts. Damage to the piston rod or the hydraulic lines caused by protruding structural steel parts is said to be eliminated which prevents annoying and expensive damage.

As the cylinder itself is the load bearing element of the DMS demolition grab, the attachment is particularly compact and has a low dead weight. This means that heavy material can be reliably demolished and moved with a minimum number of loading cycles, thereby increasing the payload on the excavator.

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