Blastrac 1-8DECMKI, Operating Manual

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Operating Instructions 1-8DEC 230V
Description and Function
3.1 Blast Unit
– General
The Blastrac equipment series described herein includes the 1-8DEC 208/230V Blast
Unit. This model is used in conjunction with the Turbo Vacuum Dust Collector. Each
combination comprises a horizontal surface preparation, closed cycle, shotblasting
system. The blast unit directs high velocity, metallic abrasive toward the work surface.
The impact of each individual particle causes the surface to fracture and become loose.
The abrasive and the loose surface particles are then directed upward due to the force
of the impact and a strong airflow created by the dust collector. The mixture of shot and
contaminants enters the rebound plenum and continues its upward movement until
directed into a specially designed chamber called the separator. Inside this chamber,
an air wash cleans the abrasive and allows the contaminants to be extracted back to
the dust collector. The clean abrasive is then gravity fed to the blast wheel and the
process repeats. The blast unit is manually propelled and the BDC-1216 Vacuum Dust
Collector must always be used. The blast units consist of the following elements:
Abrasive Cleaning Head
Abrasive Control Valve
Rebound Chamber
Deflector Plate / Hopper
Abrasive Seals
Chassis
Operator Controls
Dust Collector
Filter Chamber
Dust Collector Control
Ventilation System
Cleaning Media (Abrasive)
3.2 Blast Unit
– Abrasive Cleaning Head
Refer to Figure Number 2
The center of the patented abrasive cleaning head is the power driven, four bladed, six
inch blast wheel that throws abrasive towards the surface being cleaned. This center
fed centrifugal blast wheel propels the abrasive by centrifugal force at a speed of more
than 200 mph.
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