Pivoted Debris Scraper
Pivoted Debris Scraper is used to clean debris out from areas where a loader is unable to reach.
Ideal for clearing material from under Quarry hoppers and screening plants
The maximum reach from the tip of the chain to the frame base plate is 2800mm.
The main frame can be side shifted to one side to increase the reach of the Scraper.
With the Scraper's boom pivoted, the skid steer is reversed passed the area to be cleaned, to drag material out in front of the loader for collection with a bucket or bucket-broom.
The chain is fitted with thirty-three (33), 350mm (14") paddle blades with closed in sides for
dragging the material towards the loader.
The chain has a pitch of 1.654", with a 33,000 lbs breaking strain. For best results when using the Scraper, the loader should be reversing.
The Scraper is fitted with a pivot ram for changing the position of the boom from straight out in
from, to right angle to the machine. If the loader does not have dual hydraulic lines (both standard
flows) then we can supply the 80SC1050 electric over hydraulic control valve that is used
to switch the oil flow between the hydraulic motor and the pivot ram. Alternatively a manual
selector valve can be fitted to the Scraper.
A robust hydraulic motor that directly drives the drive sprocket via a drive shaft drives the
scraper chain.
This type of set-up reduces wear parts (eg. gearboxes), requires no on-going servicing, and achieves high start-up torque.
The drive sprocket has a tapered bore making it easier to remove the sprocket and refit the sprocket so that it lines up with the nose sprocket on the scraper.
A labyrinth seal beside the drive sprocket stops dirt from entering the bearing housing thereby
protecting the bearings from premature wear.
The scraper boom is fitted with a nylon insert for easy replacement when worn. Bisalloy (high grade
wear plate) is fitted to the top and bottom of the boom and scraper main frame to combat wear
caused by the chain travelling over these areas.
To tension the chain, grease is pumped into a cavity in the nose sprocket guide (similar operation to tensioning tracks on large crawler type earthmoving machinery). A buffer spring located in the boom takes up shock loads from the nose sprocket.