Setup Guide: Classic Blast Machines

Watch how to set up and begin operating Clemco's Classic Abrasive Blast Machines. These industrial-quality machines range in size from 0.5 cuft to 20 cuft. Clemco is the world's largest manufacturer of air-powered abrasive blasting equipment, including abrasive blast machines, blast cabinets, blast rooms, safety equipment and blasting accessories.

Welcome to the Clemco Setup Guide for Classic Blast Machines

This video is intended to be an equipment setup guide only and not to be used as a substitute for reading the owner’s manual. Abrasive blasting equipment is dangerous, and the operator must still read all applicable owner’s manuals before setting up and operating the equipment.

Abrasive Blasting Worksite

Preparing the Worksite

  • When setting up the equipment at the work site, take note of the direction of the wind.Be sure to locate the compressor up wind of the blasting operation. This will prevent contaminated air from entering the compressor intake.

Preparing the Blast Machine

  • Make sure all fittings on the blast machine are wrench-tight.  Leaks will cause the system to malfunction.
  • Sometimes the pop-up valve can shift during shipping. Check the alignment of the pop-up valve to ensure that when it is activated, it will be centered on the pop-up seat.  If the pop-up valve is not properly aligned, it could prevent the machine from pressurizing.
  • Make sure the choke valve is open.
  • Make sure the abrasive metering valve is closed.
  • Make sure the safety petcock located on top of the inlet valve is open. This will prevent accidental activation of the blast machine.
  • Install the optional moisture separator to the inlet valve. Clean, dry air is essential to an efficient blasting operation. Moisture in the air supply will likely cause media to clump and stick together, blocking the metering valve.
  • Install an air-supply hose fitting to the moisture separator that is compatible with the air-supply hose.
Classic Blast Machine: Installing a Moisture Separator
Uncoiling blast hose

Preparing the Blast Hose & Remote Control Lines

  • Uncoil the blast hose and lay the 50-foot twinline alongside it.
  • Band the control handle to the blast hose close to the nozzle holder, using the two nylon ties provided.
  • Make sure to use a safety cable when connecting the blast hose to the quick coupling on the blast machine.
  • Be sure the locking pin is engaged.
  • Connect the two hose unions to one end of the 5-foot twinline.
  • Band that end of the 5-foot twinline to just behind the quick coupling of the blast machine outlet-pipe nipple.
  • Attach the other end of the 5-foot twinline hose to the inlet valve.
  • Connect the 50-foot twinline to the 5-foot twinline.
  • Check the tightness of all the fittings. Leaks will cause the system to malfunction.
  • Install the nozzle by first inserting the nozzle washer into the nozzle holder, then thread the nozzle into the holder hand-tight.

Connecting to the Compressor

  • Unroll your air and supply hose between the compressor and blast machine.
  • Attach the air line to the blast machine. Make sure you use a safety cable to secure the connection.
  • Attach the other end of the air line to the compressor. Again, be sure to use a safety cable to secure the connection.
Connecting Compressed Air: Classic Blast Machine
Setting Up a CPF Filter: Classic Blast Machine

Setting Up the CPF Filter

  • Unroll your air and supply hose between the compressor and the CPF filter.
  • Attach the air supply hose to the CPF filter.
  • Attach the air-supply hose to the compressor. Make sure you use a safety cable to secure the connection.
  • Unroll the high-pressure breathing hose between the CPF filter and where you will be blasting.
  • Connect the high-pressure breathing hose onto the CPF filter.
  • Connect the other end to your blast hood or climate control device.
  • Remember, OSHA requires that Grade D breathing air be supplied to the CPF filter and a CO monitor be used to monitor the air being supplied to the respirator.
  • Adjust the pressure on the CPF filter according to your supplied-air respirator’s operating instructions.

Starting Up the System

  • Operators and anyone else that may be exposed to the hazards generated by the blasting process must wear appropriate protective gear, including abrasive-resistant clothing, leather gloves, eye and hearing protection, and a NIOSH-approved Type-CE supplied-air respirator.
  • Close the air valve on the compressor.
  • Start the compressor following the instructions that came with it.
  • Allow it to warm up to operating temperature and pressure.The pressure must be more than 50 PSI, but no more than the blast machine’s rated pressure.
  • Slowly open the compressor air valve to pressurize the air-supply line.
  • Listen for noise that indicates any open lines or leaks.
  • Load your abrasive into the blast machine by pouring the abrasive into the concave head. Use the optional screen to prevent foreign objects that may jam the machine from entering the pressure vessel.
  • Keep the abrasive level below the pop-up valve to prevent abrasive from being forced up and out of the machine when it pressurizes.
  • Make sure the remote control handle lever is in the up (no blast) position.
  • When you are ready to start blasting, close the safety petcock. This allows the blast machine to be activated by the remote control handle.
  • The system is now ready to begin blasting.
Using Safety Cables: Classic Blast Machine