Reference Number: 134297

ENGINEERED ABRASIVES MODEL 54T8  S/N: 405263
 ROTARY TABLE TYPE BLAST CLEANING MACHINE
 PURCHASED FROM A MAJOR MANUFACTURE OF TURBINE BLADES
 
 SEQUENCE OF MEDIA RECLAMATION
  EACH BLAST NOZZLE HAS TWO (2) SUPPLY LINES.
 TO THE BOTTOM OF THE NOZZLE IS CONNECTED TO THE MEDIA
 HOSE.  TO THE BACK OF THE NOZZLE IS CONNECTED TO THE
 COMPRESSED AIR HOSE.  AS THE COMPRESSED AIR STREAM
 PASSES THROUGH THE AIRJET AND OUT THE NOZZLE, IT
 CREATES A LOW PRESSURE VACUUM INSIDE THE MIXING
 HEAD ASSEMBLY.  THIS IN TURN "PULLS" THE MEDIA
 FROM THE CUP ON THE 360 DEGREE ABRASIVE DISTRIBUTOR
 THROUGH THE MATERIAL HOSE AND DISCHARGES IT OUT
 THROUGH THE NOZZLES.  THE FRONT ON THE AIRJET
 SHOULD BE 1/8" FROM THE BACK OF THE NOZZLE.  MEDIA
 FLOW IS ADJUSTED BY CONTROLLER ON FRONT SIDE OF
 PANEL.
 
 SURFACE PREPARATION AND CLEANING ARE ACCOMPLISHED
 BY A GRIT/AIR MIXTURE.  THE GRIT IS MIXED AND PROPELLED
 THROUGH THE POLYURETHANE GUNBODY WHICH IS DIRECTED AT THE
 WORK PIECE INSIDE THE BLAST CABINET.
 
 AFTER STRIKING THE WORK SURFACE, THE SHOT FALLS THROUGH
 EXPANDED METAL FLOOR INTO THE BOTTOM OF THE HOPPER.
 ALL SHOT IS PULLED INTO THE RECLAIM UNIT FOR CLEANING
 AND RECYCLING. DUST AND BROKEN GRIT ARE DIRECTED TO
 THE DUST COLLECTOR FOR DISPOSAL.  LARGE SIZE DEBRIS
 AND CONTAMINANTS ARE CONTAINED ON THE SCREEN FOR
 DISPOSAL
 
 BLAST GUNS 
 10 PCS - 1/2" NOZZLES - 3/16" AIRJETS
 SUCTION GUNS
 BLAST GUNS ARE MADE OF POLYURETHANE. BLAST NOZZLES ARE MADE
 OF BORON CARBIDE WITH POLYURETHANE DEFLECTORS.  BLAST HOSES
 ARE 3/4" I.D. X 1" O.D. MADE OF POLLYURETHANE.
 DUST COLLECTOR (NOT CURRENTLY WITH MACHINE)
 
  A CANISTER TYPE DUST COLLECTOR IS PREVERRED TO ACCUMULATE
 FINES REMOVED FROM THE MEDIA AND MAINTAIN A NEGATIVE
 PRESSURE IN THE PEENING CENTER.
 
 THE COLLECTOR IS CONSTRUCTED FROM 11 GAUGE STEEEL PLATE.
 TWENTY-FOUR (24) CANISTERS PROVIDE 972 SQUARE FEET OF
 FILTER AREA.  THE BLOWER IS POWERED BY A 10 HP MOTOR,
 ACHIEVING 2,400 CFM AT 8" STATIC PRESSURE.
 CONTINUOUS CLEANING OF THE CANISTERS IS ACCOMPLISHED
 BY A REVERSE PULSE AIR WASH.  A MAGNEHELIC GAUGE MONITORS
 THE PRESSURE DIFFERENTIAL ACROSS THE FILTERS AND PROVIDES
 A QUICK, VISUAL CHECK OF THE DUST COLLECTOR.
 
 DIMENSION OF THE COLLECTOR ARE 36" X 84" X 12'6" HIGH.
 THE BLOWER IS MOUNTED AFTER THE FILTERS SO THAT IT IS NOT
 EXPOSED TO ABRASIVE DUST. TWO (2) HOPPERS HOLD COLLECTED
 DEBRIS AT THE BASE OF THE DUST COLLECTOR FOR DISPOSAL
 INTO DUST DRUMS.
 
 ABRASIVE RECLAIMER WITH AIR WASH
 
 THE ABRASIVE RECLAIIM UNIT IS MADE OF 1/4" STEEL PLATE.
 THE RECLAIM UNIT CAUSES A SPIRALING MOVEMENT OF AIR IN
 THE CENTER OF THE UNIT WHICH THROWS MEDIA TO THE SIDE
 OF THE RECLAIM WHICH FALLS TO THE BOTTOM OF THE STORAGE
 HOPPER.  AS GOOD MEDIA PASSES THROUGH FEED CUP, IT WILL
 FALL INTO ROTATING GUN HEAD TO BE RECYCLED THROUGH
 BLAST GUNS.
 THEORY OF OPERATION
 
 PARTS ARE LOADED ONTO TABLE BY OPERATOR.
 OPERATOR TOUCHES START BUTTON ON CABINET.  PART IS
 CONVEYED INTO BLAST CABINET.  TEN (10) SUCTION GUNS
 WILL BLAST ONE SIDE.  AIR REGULATOR WILL BE SET A PROPER 
 SETTING.  TABLE SETTING WILL BE SET AT DESIRED SPEED.
 GUNS ARE SET IN A FIXED POSITION.  AS PEDIA FALLS THROUGH
 EXPANDED METAL FLOOR INTO HOPPER, A 6" TUB PULLS ALL
 MEDIA UP TO RECLAIM HOUSING.  MEDIA PASSES THROUGH AN
 AIR-WASH SEPARATOR.  GOOD MEDIA PASSES INTO STORAGE
 HOPPER TO BE RECYCLED THROUGH BLAST GUNS.  THIS
 TABLE IS EQUIPPED WITH A TABLE COUNTER.  EVERY
 EVOLUTION OF THE TABLE INCREMENTS THE COUNTER ONE 
 DIGIT.  THERE IS A YELLOW FLUSH HAD PUSH BUTTON 
 LOCATED ON THE PUSH BUTTON STATION FOR RESETTING
 THE COUNTER.