Robust Innovation = Low total cost of ownership.
The by DEMAREC introduced demolition and sorting grabs are a standard to the market nowadays. This proven concept can be widely applied for demolition, recycling and other applications. These grabs have already proven themselves and are in use at many prominent companies in the demolition and recycling industry.
In designing this new generation of grabs, DEMAREC has managed to take the gruelling conditions in this field fully into account. The grabs are characterised by their extremely powerful closing strength and the robust construction of the yoke thanks to a Delta-box frame with wide pivotal points using bearings and over dimensioned pins and bearings.
The Delta-box frame in combination with a single large diameter cylinder - for powerful closing - ensures low reactive forces at the hinging points. The application of a single cylinder makes the grab easy to service and reliable because of the simplicity of the hydraulic system. The shells are equipped with a perforated shell plate made of high-grade material as standard. This construction gives extra torsion rigidity to the shells, prevents material getting stuck in the shells and gives optimal visibility on the job.
No concessions were made with regard to the wearing parts. The sides and the reversible, divided bottom blades are manufactured of extra thick, durable material. The divided bottom blades can also be interchanged up to 3 times so that wear at the corners can be dealt with and wearing-material is not wasted unnecessarily.
Twin rotation motors and filters
DEMAREC demolition and sorting grabs of the type DRG-28 to 45 are fitted with twin rotation motors for extra rotation power as standard. The DRG-17 to 22 are equipped for this and can optionally be supplied with a second rotation motor for use in special applications. All grabs are also fitted with filters in the rotation circuit as standard.
The application of the standard load safety valve in the grabs open/close circuit ensures safety when working with DEMAREC demolition and sorting graps. For example, unsafe situations when picking up and laying dock boards for example are avoided. Overheating of the oil is also avoided and the machine keeps up its cycle speed.
|Technical data DEMAREC demolition- and sorting grabs|
|Type||Carrier weight*||Weight**||Capacity||Closing force||Opening (mm) A||Width (mm) B||Height (mm) C|
|DRG-14||10 - 18 ton||800 kg***||340 l||43 kN||1730||750||1217***|
|DRG-15||12 - 20 ton||900 kg***||415 l||43 kN||1730||900||1217 ***|
|DRG-17||12 - 24 ton||1030 kg||365 l||50 kN||1757||850||1225|
|DRG-19||13 - 25 ton||1115 kg||480 l||50 kN||1895||1000||1256|
|DRG-22||15 - 30 ton||1315 kg||570 l||56 kN||1992||1000||1340|
|DRG-25||18 - 28 ton||1500 kg***||650 l||60 kN||2050||1000||1440 ***|
|DRG-27||20 - 30 ton||1590 kg***||760 l||60 kN||2050||1200||1440 ***|
|DRG-28||24 - 40 ton||1820 kg||825 l||70 kN||2193||1100||1393|
|DRG-36||30 - 50 ton||2210 kg||960 l||80 kN||2325||1250||1481|
|DRG-45||35 - 60 ton||2330 kg||1075 l||80 kN||2355||1400||1496|
|DRG-65||50 - 80 ton||4165 kg||1660 l||140 kN||2700||1500||1818|
|Type||Opening/Closing Pmax||Flow||Rotation Pmax||Flow|
|DRG-14||350 bar||80 l/min||140 bar||40 l/min|
|DRG-15||350 bar||80 l/min||140 bar||40 l/min|
|DRG-17||350 bar||100 l/min||140 bar||40 l/min|
|DRG-19||350 bar||100 l/min||140 bar||40 l/min|
|DRG-22||350 bar||100 l/min||140 bar||40 l/min|
|DRG-25||350 bar||100 l/min||140 bar||40-60 l/min|
|DRG-27||350 bar||100 l/min||140 bar||40/60 l/min|
|DRG-28||350 bar||120 l/min||140 bar||40-60 l/min|
|DRG-36||350 bar||120 l/min||140 bar||40-60 l/min|
|DRG-45||350 bar||120 l/min||140 bar||40-60 l/min|
|DRG-65||350 bar||200 l/min||140 bar||
*depending on lifting capacity of carrier / ** weight incl. standard bracket
Subject to change without notice.