MultiBlast PRO User manual

Operating Manual
December 2022
Section 1.0 Important Information
Section 2.0 How The System Works
Section 3.0 Installation & Initial Set Up
Section 4.0 System Operation & Adjustments
Section 5.0 Preventative Maintenance
Section 6.0 Troubleshooting
Section 7.0 Replacement Parts Listing
Section 8.0 Specifications
IMPORTANT –READ THIS INFORMATION CAREFULLY PRIOR TO
OPERATING THE EQUIPMENT.
ALL ABRASIVE BLASTING OPERATIONS ARE DANGEROUS AND
CREATE A HAZARDOUS ENVIRONMENT.
FAILURE TO COMPLY WITH THIS INFORMATION MAY CAUSE SERIOUS INJURY
OR DEATH.
Index
MultiBlast PRO Pressure Sandblasting Cabinet
Capital Machinery Sales Pty Ltd
www.capitalmachinery.com.au
Call 1800 706620

1.0 Important Information
1.1 All products and equipment designed and manufactured by MultiBlast Australia are intended for use by
experienced users of abrasive blasting equipment, and its’ associated operations and abrasive blasting
media.
1.2 It is the responsibility of the user/purchaser/distributor to:
1.2.1 Determine if the equipment and abrasive media is suitable for the users intended use and
application.
1.2.2 Familiarize themselves with any appropriate laws, regulations and safe working practices which
may apply within the user’s working area/environment.
1.2.3 Provide appropriate operator training and a safe working environment, including operator
protective equipment such as, but not limited to, safety footwear, protective eyewear, hearing
protection, and respiratory protection where applicable.
1.3 No representations are made or intended as to the useful life, maintenance cycles, efficiency or
performance of the reference products or any combination of products.
1.4 Information contained herein must not be used for estimating purposes. Production rates, labour
performance and surface finishes are the sole responsibility of the user.
1.5 Read all instructions carefully prior to operating this equipment, and do not allow it to be operated by
inexperienced, untrained, or unauthorised personnel.
1.6 Ensure that the equipment is correctly serviced and maintained as specified in this manual, and that only
genuine MultiBlast Australia replacement parts are utilised. Failure to use genuine replacement parts
may void your warranty.
1.7 All pressure vessels (where supplied) are designed, manufactured, and certified in accordance with
Australian Standard AS1210. A copy of this certification will be supplied with this manual if applicable. Do
not weld, grind, or drill any pressure vessel, as this will void the certification and warranty, and may
weaken the vessel causing a catastrophic failure.
1.8 This equipment is not designed for use in areas designated as hazardous. Contact your local MultiBlast
Australia office/representative prior to operating this equipment in a hazardous area.
1.9 All compressed air fittings, connections and hoses must be in good condition, fit for purpose, correctly
sized, and fitted, and carefully inspected prior to use.
1.10 Breathing airborne dust from any abrasive media may cause lung disease or other serious injury. Always
wear suitably designed respiratory protection when handling any abrasive media, and when in the
immediate area during any abrasive blasting operation.
1.11 Static electricity may be generated during any abrasive blasting operation. All equipment should be well
grounded/earthed to prevent electric shock and reduce the risk of spark generation.
1.12 All Supplied Air Respirators (i.e.: blasting helmets) where used must comply with the requirements of
AS/NZS 1716:2003 and must be supplied with breathing air as specified in AS/NZS 1715:2009 or higher, at
a flow rate between 170l per minute (6cfm) and 425l per minute (15cfm) at all times.
Capital Machinery Sales Pty Ltd
www.capitalmachinery.com.au
Call 1800 706620

2.0 How The System Works
2.1 The MultiBlast Australia pressure blast cabinets feature a cabinet to enclose and contain the
blasting action , a pneumatically operated , safety interlocked blast pot system , and a dust
collection system to ventilate the blast cabinet.
2.2 The blasting system
2.2.1 The pressure blasting system features an air pressure filter/regulator, a foot pedal to
start/stop the blast action, a pilot operated air control valve, safety door interlocks, and
a certified pressure vessel.
2.2.2 When the compressed air supply is turned on, the gauge on the pressure regulator will
show the incoming air pressure, and control line air will be fed to the foot pedal. See
schematic figure 1.
Figure 1
Capital Machinery Sales Pty Ltd
www.capitalmachinery.com.au
Call 1800 706620

2.2.3 In this state, even if the foot pedal is operated, the blasting system will not operate as
the cabinet door(s) are open, with the door interlock valves in the closed position.
2.2.4 For the blasting system to operate, the cabinet door(s) must be closed, allowing the door
striker to contact the door interlock valve plunger, which opens the air circuit. See
schematic figure 2.
Figure 2
2.2.5 With the cabinet door(s) closed and the foot pedal on, this allows the signal air to the air
control valve. This signal opens the air valve, and closes the exhaust valve, allowing
compressed air to enter the blast pot, lift the pop-up valve and pressurise the blast pot.
Capital Machinery Sales Pty Ltd
www.capitalmachinery.com.au
Call 1800 706620

2.2.6 With the blast pot pressurised, compressed air is fed to the abrasive valve through the
pusher line. As this air passes through the abrasive valve, the abrasive media within the
blast pot is gravity fed into the abrasive valve, where is mixes with the compressed air.
2.2.7 The air and abrasive media are then discharged at high velocity through the blast hose,
exiting at the blast nozzle attached to the end of the blast hose.
As the abrasive is spent within the blast cabinet, it falls into the cabinet lower hopper and
sits on top of the blast pot directly above the pop-up valve.
2.2.8 Once the operator releases the foot pedal, this shuts off the control line signal to the air
control valve and the exhaust valve. This closes the air control valve, and opens the
exhaust valve, which de-pressurises the blast pot. Once the air pressure in the blast pot
has been exhausted, the pop-up valve will drop, allowing abrasive sitting on top of the
blast pot to drain back into the vessel. See schematic figure 3.
Figure 3
Capital Machinery Sales Pty Ltd
www.capitalmachinery.com.au
Call 1800 706620

2.3 The ventilation system
2.3.1 The cabinet ventilation system is provided to improve visibility within the blast cabinet
for the operator, and also reduce the amount of dust within the abrasive mix.
2.3.2 Depending on the application and cabinet model selected, the ventilation dust collector
may be either a drum type unit, or a reverse pulse dust collector.
2.3.3 As the blasting system operates, dust and debris from the blasting action become
airborne within the blast cabinet. Airflow from the dust collector is drawn in through
entry vents in the top of the cabinet, and out of the cabinet via the flexible hose
connected to the rear of the cabinet.
2.3.4 This airflow draws the lighter dust and debris out of the cabinet and into the dust
collector, where it is filtered by a pleated filter cartridge before clean filtered air is
discharged from the dust collector outlet. See figure 3.
Figure 3 Showing RP Dust Collector
Capital Machinery Sales Pty Ltd
www.capitalmachinery.com.au
Call 1800 706620

3.0 Installation
3.1 The MultiBlast Australia blast cabinets do not require any special foundations , but should be
installed on a flat, level surface to provide a stable installation. The system will be shipped in a
semi-knocked down condition, with most smaller components transported within the cabinet
itself.
3.2 Once all packing materials have been removed, carefully remove all loose components from
within the cabinet, such as the light assembly, light glass, drum dust collector etc.
3.3 The blast cabinet should only be moved and positioned using a suitably sized forklift utilising the
two (2) forklift tyne pockets located on the base of the cabinet legs. See figure 4.
Figure 4
3.4Cabinet Models PRO800RP, PRO1200RP, and PRO1200RP are all supplied with the dust collector
attached to the side of the cabinet. All other models are supplied with the dust collector separate
to the main cabinet assembly. All models require that the outlet spigot on the rear of the blast
cabinet be connected to the inlet spigot on the dust collector, using the wire reinforced hose
provided.
WARNING –All installation work and associated connections
must be carried by suitably trained and equipped tradespersons.
Capital Machinery Sales Pty Ltd
www.capitalmachinery.com.au
Call 1800 706620

3.5 Position the dust collector within approximately 1.5m of the rear of the blast cabinet. Then
simply slide the hose over the cabinet spigot, and clamp firmly in place using the worm drive
clamps provided. Repeat this process with the dust collector inlet spigot. See figures 7 –9.
3.6 Position the blast pot directly beneath the cabinet and connect the rubber pot seal using the two
(2) worm drive clamps provided, ensuring an airtight seal is achieved between the blast pot and
cabinet. See figure 11.
NOTE –ALL JOINTS AND CONNECTIONS MUST BE FULLY
AIRTIGHT TO PREVENT ANY LEAKAGE. FAILURE TO PROVIDE
AIRTIGHT SEALS WILL PREVENT THE SYSTEM FROM
OPERATING CORRECTLY.
Figure 7
PRO800, PRO1200, PRO1500 & PRO1800
Figure 8
PRO1500RP & PRO1800RP
Figure 9
PRO1200RP (Plan View)
Capital Machinery Sales Pty Ltd
www.capitalmachinery.com.au
Call 1800 706620

Figure 11 Figure 12
3.7 For models with reverse pulse (RP) dust collection, position the 10-litre dust bin directly below
the dust collector hopper, and connect the spigot on the lid of the bin to the dust collector using
the wire reinforced hose and worm drive clamps provided. See figure 12.
3.8 Re-connect the pneumatic control line tubing as follows –
3.8.1 Red tubing –Connect one end to the port marked “P” on the foot pedal, (see figure 13)
and the other end to the signal line port on the supply side of the blast pot piping (see
figure 14).
3.8.2 Green tubing –Connect one end to the port marked “B” on the foot pedal, (see figure 15)
with the opposite end to the door interlock valve (see figure 16). The second green tubing
returns from the interlock valve (see figure 17) with the opposite end connected to the
control line side of the air control valve (see figure 18).
RED TUBING TO FOOT
PEDAL POT “P” TO
BLAST POT SUPPLY
SIDE
FIGURE 13 FIGURE 14
GREEN TUBING –
FOOT PEDAL PORT
“B” TO DOOR
INTERLOCK VALVE
FIGURE 15 FIGURE 16
Capital Machinery Sales Pty Ltd
www.capitalmachinery.com.au
Call 1800 706620

3.8.3 Black tubing –(For units with drum dust collector A201122-3) –Connect one end to the
second port on the supply side of the blast pot piping (see figure 19) and the other end
to the mini ball valve located on the top of the dust collector lid (see figure 20)
3.8.4 Re-connect the blast hose coupling to the abrasive control valve coupling by placing the
two coupling faces together and rotating the hose coupling clockwise until the coupling
lugs lock into position. Refit the safety locking pin through the 2 holes provided. See
figures 21 & 22.
3.9 Service connections (Refer Section 8.0 for sizing requirements)
3.9.1 Electrical power –The blast cabinet and dust collector will each come with its own 240V
single phase power cable fitted with a standard 3 pin male plug. The cabinet power supply
operates the cabinet lighting, while the dust collector power supply operates the dust
collector fan. Connect each cable to a suitably sized electrical power outlet.
GREEN TUBING
RETURN FROM
INTERLOCK VALVE TO
SIGNAL SIDE OF AIR
CONTROL VALVE
BLACK TUBING FROM
AIR MANIFOLD TO
DUST COLLECTOR
BALL VALVE
FIGURE 17 FIGURE 18
FIGURE 19 FIGURE 20
ABRASIVE VALVE
COUPLING
ABRASIVE HOSE
COUPLING
COUPLING
SAFETY CLIP
FIGURE 21 FIGURE 22
Capital Machinery Sales Pty Ltd
www.capitalmachinery.com.au
Call 1800 706620