The ASCOJET 1505 is a dry ice blasting unit designed for efficient and environmentally friendly cleaning. It utilizes solid carbon dioxide (dry ice) pellets as a blasting medium, which sublimate upon impact, leaving no secondary contamination or residue. This makes it suitable for a wide range of applications where traditional cleaning methods might be impractical or harmful.
Function Description
The ASCOJET 1505 operates by propelling dry ice pellets at high velocity onto a surface to be cleaned. The impact of the pellets, combined with the thermal shock created by the extremely cold dry ice (-79 °C or -110 °F), causes contaminants to shrink and detach from the substrate. The dry ice then sublimates into gaseous CO2, eliminating the need for cleanup of a secondary blasting medium. This process is non-abrasive, non-conductive, and non-flammable, making it safe for delicate surfaces and electrical components. The unit is designed for continuous operation and can be used in various industrial settings.
Important Technical Specifications
Electrical Connection:
- Voltage: 110 V
- Current type: 1~
- Frequency: 60 Hz
- Connected load: 0.6 kW
- FI Safety switch: 0.03 delta I in A
Compressed Air:
- Nominal width of hose: ¾ inch (19 mm)
- Pressure supply (max.): 145 psi (10 bar)
- Pressure supply (min.): 29 psi (2 bar)
- Compressed air consumption: 17.6 - 123 ft³/min (0.5 - 3.5 m³/min)
- Quality of compressed air: ISO 8573-1 and oil content, particle size and density class 3 / pressure condensation point class 4
Performance Data:
- Jet pressure (max.): 145 psi (10 bar)
- Diameter of dry ice pellets (max.): 0.12 inch (3 mm)
- Dry ice consumption: 33 - 110 lbs/h (15 - 50 kg/h)
Dimensions:
- Contents of dry ice hopper: 40 lbs (18 kg)
- Width: 20.1 inch (510 mm)
- Depth: 30.2 inch (768 mm)
- Height: 43.7 inch (1110 mm)
- Weight ASCOJET 1505 ready to operate: 154 lbs (70 kg)
CO2 Data Sheet:
- Chemical formula: CO2
- Molecular weight: 44.011 kg/kmol
- Molecular volume: 22.263 m³/kmol
- Specific gas constant: 0.1889 kJ/(kg*K)
- Gas density (at 0 °C and 101.3 kPa): 1.977 kg/m³
- Relative gas density (at 0 °C and 101.3 kPa, air = 1): 1.529 kg/m³
- Triple point: -56.6 °C at 5.18 bar
- Gas colour: colourless
- Reaction under normal conditions: Stable molecules, can be used as inert gas
- Odour: Odourless
- Taste: neutral, slightly acidic
- Toxic classification: non toxic
- Sublimation temperature: -78.9 °C (-110 °F) at p = 0.9807 bar
- Latent heat of the sublimation: 573.02 kJ/kg (Enthalpy of the sublimation)
Usage Features
The ASCOJET 1505 is designed for user-friendly operation with a clear control panel and display.
- Control Elements: Includes a push handle, cover for the dry ice hopper, storage for accessories, transport handle, bumper, coupling for transport hose, earthing rope, coupling of the control cable, and a holder for the blasting gun.
- Control Panel: Features a statistics key, reset counter, key to empty the dry ice hopper, display, keys to increase/decrease air pressure, keys to increase/decrease dry ice consumption, power switch, emergency-stop button, and an "only air" button.
- Display: Provides visual feedback on the unit's status, including indicator lamps for control voltage, hopper activity, emergency stop, compressed air, selected pressure, feeding device, drive, and blasting gun status.
- Nozzles: A variety of nozzles are available (flat, round, angled) to suit different cleaning tasks and contamination levels. The choice of nozzle depends on the material to be cleaned, the contamination, and the compressed air available. All nozzles are fitted onto the gun without using any tools and are secured with a fastener and locking bar.
- Accessories: Various accessories are available, such as a protective sleeve for the hose system, different blasting guns (OHP2), barrel nozzles, and a pellet cutter OHP. A gun light for cleaning jobs with limited light conditions is also available.
- Operating the System: The unit should be positioned at a dry location with the brakes on the front wheels. Before operating, ensure all covers (side panel left and right) and the safety grill of the dry ice hopper are closed and securely fastened. Dry ice pellets are filled into the hopper, and the cover is closed.
- Settings: Air pressure and dry ice feeding can be adjusted using respective regulators. An emergency-stop button is available for immediate shutdown.
- Shutting Down: To shut down, press the key to empty the dry ice hopper and wait until it is empty. The appliance switch should be turned to "0/OFF". Disconnect the machine from the compressed air inlet and the main plug from the socket. Clean and roll up the grounding rope.
Maintenance Features
Regular maintenance is crucial for the safe and reliable operation of the ASCOJET 1505.
- Maintenance Instructions: The basis of safe operation is regular maintenance according to the following plan, using exclusively original parts. This includes checking parts, accessories, operating material, and cleaning agents.
- Maintenance Schedule:
- Daily before starting operations: Check the transport hose for damages, bends, and other damages. Soft areas on the hose indicate wear on the inner side of the hose. Replace defective or worn out hoses. Check electrical cable and plug for damages. Get defective parts replaced by Customer Service.
- Every 100 operation hours: Check couplings of the transport hose, device, gun for damages or wear and tear. Replace defective couplings. Check feeding equipment for damages or leaks. Check attachment caps of the rear wheels.
- Every 500 hours or once a year: Get the device checked by Customer Service.
- Every 2 years: Replace the transport hose at least once in 2 years.
- Opening the Device: The side panels of the device can be removed to access the device for maintenance jobs.
- Maintenance Works: Replace the filter inserted in the water separator.
- Tests: According to the specifications of BGV D 26, the following tests must be conducted by a technical expert. The results of the tests must be documented in a test report. The device operator must carefully store the test report until the next test.
- After a working break of more than one year: Check the device to make sure that it is in a proper condition and is functioning well.
- After changing the installation site: Check the device to make sure that it is in a proper condition, is functioning well and has been installed properly. The operational safety of the device can get hampered on account of maintenance jobs or any modifications that have been done.
The ASCOJET 1505 is a robust and versatile dry ice blasting unit, designed for effective cleaning while prioritizing safety and ease of maintenance.
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