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 3 times faster than
suction blast
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- Approved multiple
dust collector with air motor shaker and powerful blower for clean operation
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- Particle velocities
to 600 feet per second
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- Uses less compressed
air as other types
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- Can operate on as
little as 3 horsepower of air
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- Can use angle
nozzles to blast inside of tubes
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- Uses any dry
abrasive
- Kelco Model CH24C
 Low initial cost
- Tungsten carbide
nozzle
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- 12 gage steel air
tight construction
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- Integral dust
collector with fan on clean air side
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- Uses any dry
abrasive
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- No moving parts
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- Little skill to
operate
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- Very low maintenance
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- No venting required
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Kelco Model CS3636C
- Pressure Blast versus Syphon
Blast
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In the majority of applications, the Pressure Blast
is favored because of it's speed and versatility. The pressure blast is a system in which
the abrasive is in a closed pressurized tank with one hose carrying a mixture of
compressed air and abrasive from the tank to the nozzle. The Syphon Blast is a system in
which two hoses, one for compressed air and one for the abrasive syphon, are connected to
a gun which has a nozzle and an air jet.
Advantages of Pressure Blast:
Faster - about 3
times faster than syphon blast.
Particle velocity
range - many pressure blasts are designed to operate from 1 to 125 psi.
Control of abrasive
flow rate - the abrasive valve and the choke valve permit accurate control of the abrasive
flow rate.
Operator fatigue -
Reduced pressure blast nozzles are more compact and lightweight.
Maintenance - There
are no air jets or gun bodies to wear out.
Longer abrasive
life - Blast cleaning at high pressure greatly reduces abrasive life.
Pressure blasts
throw more abrasive but at low pressure.
The abrasive
breakdown per unit cleaned is reduced.
Can clean cored
spaces.
Higher particle
velocity - Critical in getting "tooth" on a blast cleaned metal surface.
Nozzle Variety -
Can use special nozzles such as angle nozzle, cone blast 3600 nozzles,
bottoming nozzles, and rubber tube nozzles.
Advantages of Syphon Blast:
Lower price -
Pressure blast cabinets usually cost more than syphon blast cabinets of similar size.
Shorter Abrasive
Change Time - Most syphon blast cabinets are designed so the abrasive can be changed in 1
or 2 minutes. Most pressure blast cabinets require 5 to 10 minutes.
Quicker recycling
of Abrasive - In syphon blast cabinets, the abrasive is continuously re-cycled without
interrupting the blast. In a pressure blast cabinet, the spent abrasive in the hopper will
re-charge into the abrasive tank via the automatic fill valve after blasting stops, about
20 seconds.
In a choice between pressure blast and syphon
blast where pressure blast can give 3 time faster production, profit argues very strongly
in favor of pressure blast.
 
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Kelco Sales and Engineering All rights reserved.
- Phone: (562)
868-9861 Fax: (562) 864-2534
- E-Mail: info@kelcosales.com
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