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Continuous Conveyor Hanger Type Machine

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2.50 out of 5 based on 2 customer ratings

Surface International
manufacturers continuous overhead conveyor shot blast machines which can be used for a wide
spectrum of applications and work piece shapes and sizes.
Characteristics
• Versatile transport technology
• highly efficient blast wheels
• Multiple machine sizes and variations available
Applications
• Removal of mill and forge scale as well as rust
• Removal of burrs and scales
• Removal of molding sand
• Increase of surface roughness
Applications include blast cleaning welded steel fabrications, deburring and homogeneous die-cast parts,
and peening dynamically stressed components. Batches of small components or singular large, heavy

Product Description

Surface International
manufacturers continuous overhead conveyor shot blast machines which can be used for a wide
spectrum of applications and work piece shapes and sizes.
Characteristics
• Versatile transport technology
• highly efficient blast wheels
• Multiple machine sizes and variations available
Applications
• Removal of mill and forge scale as well as rust
• Removal of burrs and scales
• Removal of molding sand
• Increase of surface roughness
Applications include blast cleaning welded steel fabrications, deburring and homogeneous die-cast parts,
and peening dynamically stressed components. Batches of small components or singular large, heavy
work pieces can be treated. This flexibility is achieved by several special features:
Rotation and oscillation

To achieve complete coverage, the work piece carrying hooks rotate and stop automatically at different
location in the blast chamber. This rotation and oscillation process means that even highly complex work
pieces, with hard to reach surfaces, can be safely and accurately treated.
Hook and hoist options:
The transport system can be designed for different size & weights. As an option, carrying hooks are
available with integrated chain hoists for operational ease and safety.
The Process
The work pieces are transported manually on rotating hooks or automatically on an overhead rail system
into the blast cabinet. The blast cycle runs in accordance with the preset program and blast time. Used
abrasive and fines fall through the abrasive collection hopper beneath the blast cabinet and are
transported via a screw conveyor to a bucket elevator and to the abrasive reclamation unit. In the
reclamation unit, the used abrasive is separated from fines and contaminants and returned to the
abrasive silo. The screw conveyor to provide targeted cleansing/ separating of sand and heavy
contaminants from the used abrasive. The conveyor should ideally be installed with a magnetic separator
(also optional) to remove sand in order to prolong the service life of the machine. The abrasive then goes
to the air wash separator as before.
Manually Operated Monorail
As standard, the monorail system is designed in a single or Y-shape and equipped with two carrying
hooks made from manganese steel. The work piece batches are manually pushed to the door of the shot
blast machine where they are automatically taken by a feeding system. For especially heavy work pieces
there is the option to install an automatic transport facility over the whole length of the overhead rail
system.
Lifting Gears
Depending on the work pieces to be treated, and the preceding and subsequent processes, it may be
advantageous to combine the carrying hooks with a chain hoist so that work piece batches or heavy parts
can be easily picked up. The chain hoist is operated directly at the loading/unloading station of the
overhead rail system.
Blast Cabinet with wear resistant lining
The blast cabinet of this machine is completely lined from manganese steel. The advantage of
manganese steel: it is hardened by the impact of round abrasive from 20 HRC to more than 50 HRC, so it
has extremely good wear characteristics. Wear plates around the “hot spot” provide additional protection
for the cabinet. Made from 10 mm thick manganese steel, they overlap, suspended on a carrying system.
To seal the cabinet, a slot seal is integrated in the machine roof to avoid the escape of abrasive from the

monorail slot. The sealing system consists of a manganese steel labyrinth with a double rubber lip and
additional strip brushes.
Abrasive Removal
During the blast process, dust, broken abrasive and other solid particles or contaminants (fines) are
generated by the rust and scale removed from the work pieces. The fines are separated in the abrasive
reclamation unit which is individually adjustable to the different types and sizes of abrasive. The Abrasive
reclamation unit consists of an impact separator and a cartridge filter. The cartridge filter provides the
necessary negative pressure to remove dust. It is installed separately beside the shot blast machine.

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