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Static Pulverizers
Robust Innovation = Low total cost of ownership.
In 2003 Demarec introduced a new generation of static pulverisers. The static model has been developed for secondary demolition - breaking-up the concrete and freeing reinforcing steel from it. Pulverising at the demolition site reduces the costs of transport and recycling. But this power crusher is just as efficient at the recycling plant.
Optimal jaw construction
The upper jaw has a ground tooth plate that has two front teeth which ensure outstanding penetration into the concrete. The front teeth go between the shrouds in the lower jaw, so the reinforcing steel is always separated optimally from the concrete. Demarec static pulverisers are supplied without cutting blades as standard. This means that the reinforcing steel can be optimally separated from the concrete without mall pieces of steel being cut off.
Demarec pulverisers are fitted with the DemaPower-System.
This new cylinder technique has been developed in house at Demarec.
The DemaPower-System has a double-action differential technique, which means the pulveriser has extremely fast cycle times. The jaw can open and close in 5 seconds.
Furthermore the cylinder has 20% more power than conventionally constructed cylinders thanks to the application of two pressure chambers in the cylinder.
This gives an enormous increase in working capacity of as much as 30%.
This means you can choose either the same weight as the pulveriser with a higher capacity or a lighter Demarec pulveriser in combination with a lighter excavator while retaining capacity.
Therefore Demarec can always offer an extremely economical solution.
Exchangeable wear parts
Unique to Demarec pulverisers is that the lower and upper clamping jaws are made entirely of exchangeable wear parts. This renders welding-on virtually unnecessary and prevents fatigue of the parent material. The movable jaw is fitted with an exchangeable ground tooth plate, which in turn is fitted with two exchangeable teeth. The fixed jaw is fitted with exchangeable scraping teeth. The shrouds in the fixed jaw can not only be exchanged but also turned. Demarec static pulverisers are therefore extremely cost-effective to use.
Main Features:
 Excelent speed, power to weight ratio
Exchangeable ground tooth plate
Exchangeable teeth
Exchangeable scraping teeth on the fixed jaw
Exchangeable shrouds (can be turned)
Overdimensioned pivot point with dust seals
Robust pivot points of the cylinder
Speed valve
Exchanging of wearparts on site
Highest optimal speed and power from the DemaPower-System
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Static Pulverizers
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Technical data Demarec static pulverizers
Type |
DSP-30 |
DSP-45 |
DSP-60 |
Carrier weight* |
20-35 ton |
30-50 ton |
42-65 ton |
Weight** |
2150 kg. |
2650 kg. |
3600 kg. |
Closing force frontteeth |
900 KN |
1200 KN |
1400 KN |
Dimensions |
Jaw opening |
900 mm. |
1000 mm. |
1200 mm. |
Width of upper jaw |
350 mm. |
400 mm. |
450 mm. |
Width of lower jaw |
490 mm. |
525 mm. |
565 mm. |
Depth jaw |
885 mm. |
945 mm. |
1070 mm. |
Height |
1910 mm. |
2100 mm. |
2450 mm. |
Lenght of cutting blades*** |
200 mm. |
200 mm. |
250 mm. |
Hydraulic |
Opening/Closing
Pmax |
350 bar |
350 bar |
350 bar |
Flow |
150-250 L/min |
200-300 L/min |
300-400 L/min |
Cycle time Opening/Closing |
2,0 / 2,3 sec. |
2,0 / 2,9 sec. |
2,0 / 2,8 sec. |
* depending of lifting capacity of carrier / ** weight including standard brachet / *** Optional
Subject to change without notice
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