deflashing

www.rosler.com
DEFLASHING
for Industrial Purposes
2
Rösler technology gives you that added
advantage! One more good reason why customers
worldwide put their trust in our company.
The HUNZIKER® brand stands for leading edge technology for the industrial deflashing of Duroplast
parts and highly filled Thermoplast parts. These machines are developed and produced by Rösler
Schweiz AG, which also handles the global sales and support of these systems.
We offer you innovative technologies and services, comprehensive expertise combined with the experience of understanding how all the system components interact.
Our strength lies in customer-centered
solutions that ensure you the highhest
degree of quality and cost-efficiency, thereby providing a decisive competitive advantage.
You receive a comprehensive machine
program for the deflashing of Duroplast
parts and blasting machines for the semiconductor industry.
The product portfolio stretches from easy
to use manually-operated machines to
fully automatic, interlinked systems.
Thanks to high performance deflashing,
the systems can also be used for the deflashing and cleaning of robust parts
made of magnesium, zink and aluminium
pressure die casting.
Send us your requirements, and let us use
our business knowledge and technical expertise to find the best solution for your
needs.
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 TEST
CENTER 
At our test center in Switzerland we have a range
of systems ready for processing trials using your
sample parts of thermoset or metal.
To gain a better understanding of what is needed,
we start by performing a standard processing of the
workpieces. This shows us which blasting system
and system components and peripheral devices are
best for this purpose.
We continue performing trials until the right combination of blast and processing tools for the most
cost–effective solution has been found. This enables
us to develop customized system solutions and processing workflows tailored your individual needs.
Test center with its range of systems
Simply send us a few sample parts for testing, or
stop by our plant to see the results firsthand.

CONSULATION AND SUPPORT 
The manufacturing of thermoset components must
take into consideration the port/production processing – deflashing – already in the production phase.
In the manufacturing process, it’s possible to avoid
parting lines, whose burrs are either impossible to
remove or leave visible scars. Consultation and close
cooperation with the part and tool design engineers
is therefore essential. Parts that can’t be completely
deflashed automatically lead to post-processing
costs out of proportion with the actual manufacturing costs.

Sales team
QUALITY / SERVICE 
After they have been completed, the deflashing systems undergo extensive testing in our plant. As
standard practice, we use the same customer parts
as were used for the initial tests. Ideally, the customer is on/site during the tests, to view for themselves the exceptional quality of their new deflashing
system. During this visit, plans for the system’s
transport and installation are discussed. Our experienced installation and process engineers stand
ready to handle the installation and commissioning,
and provide training. They are also responsible for
the subsequent service and maintenance.
Our machines conform to all relevant requirements
of the EU Directive for machinery (2006/42/EC).
Service team
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Process Engineering
Deflashing Machines
 BLAST
WHEEL TECHNOLOGY 
Efficient deflashing requires extreme acceleration of the
blast media. To achieve this, Rösler uses blast wheel
technology. Blades mounted on the blast wheel capture and transport the blast media, using centrifugal
force to swiftly propel the media. The blast wheels are
characterized by their low energy consumption and
high degree of coverage.
Coverage (hotspot) produced by blast wheels in comparison to blast guns.

NOZZLE TECHNOLOGY 
Blasting guns are used in applications requiring an intense, focused
deflashing, or where a minimum quantity of blast media is sufficient. Used in combination with blast wheels, blast guns are ideal
for deflashing difficult to reach areas on the parts (such as holes).
Four-Stage Processing
of the Blast Media
The entire volume of blast media circulates in a closed
loop.
In the first step, air, dust and fine particles are suctioned
from the blasting chamber.
In the second step, a vacuum causes the consumed
blast media, burrs and fibers to fall onto the multi-stage
screening unit. Here, the debris is filtered from the blast
media in circulation.
In step three, the residual blast media moves to the cascade separator. A cascade separator is used to ensure a
consistently high quality of blast media. Spent blast
media and any residual debris are removed from
circulation here, and the resulting clean
blast media moves on the blast media’s
replenishment hopper.
In step four, an optional sensor automatically handles replenishment of the blast media and
ensures that the spent blast
media is continuously replaced
by new to ensure that an adequate amount is in circulation.
Cascade separator with cyclone
Screening unit
Blast media replenishment
Workpiece cleaning
and dust extraction

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CLEANING AND QUALITY OF THE WORKPIECES 
The cleaning and blow-off of the parts occurs after the processing and
is specially configured for that type of part. To prevent statically charged dust deposits from adhering to the parts and being difficult to remove, every machine is equipped with a anti-static fluid spray system.
The anti-static fluid, held in a supply reservoir, is emitted through a
nozzle. Although the water/anti-static fluid can be manually mixed, an
automatic metering unit is also available. The mix ratio can be set using
the control panel.
Blow-off of the workpieces using
a compressed air blower

Anti-static equipment
AIR EXTRACTION FROM THE BLASTING ZONE 
Dust-laden air is suctioned from the blasting chambers, using the method corresponding to that process. This action transports the reusable blast media back into the loop (see also Blast Media Recovery).

Dust collector
AIR FILTRATION 
The air filtration system uses specially designed, highly effective filter cartridges. These are automatically cleaned at regular intervals during normal operations, thereby ensuring 24x7 continuous
operations.
Operational Safety and Ease of Use

CONTROL CONSOLE 
To ensure the utmost operational safety, we configure the controls as
follows:

Electronic controls with safety monitors

Operational status and easy to understand error messages

Designed for simple installation using plug-in connections that link
the control console to the machine

Emergency-stop button is an easily accessible location

Compliance with all relevant CE standards
Pre-selected operating mode
Display on the control panel
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Bulk Deflashing Machines
SBSK Loop Belt Machines
View of the loop belt trough
(Rubber blades for gentle transport of the
workpieces)
SBSK 1702
View of the perforated steel profile loop
belt (metal) for small parts
SBSK 1702 cross-section
SBSK 1702 OVERVIEW
One or two blast wheels,
Designed for continuous operations
For the automatic deflashing
of:
 Large quantities
 Bulk processing of small and
medium parts
SBSK loop belt machines are
used for the continuous deflashing of thermoset parts
capable of bulk processing at
high volumes.
Typical applications:
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Switch housings and covers
for electrical components
Housings for circuit breakers
and contactors
Pan handles
Ashtrays
Camshafts
TECHNICAL
DESCRIPTION 

The parts are transported via
a conveyor belt and a vibrating trough to the deflashing
system’s loop belt. The spe-
cialized rubber loop belt is
equipped with lugs and acts
as a screw conveyor, thereby
ensuring smooth transport at
a pre-defined speed within
the blasting zone.
The parts are deflashed via
blast wheels mounted on the
roof of the blasting chamber,
above the conveyor belt.
After the parts have been deflashed, they move to an integrated cleaning drum that
tumbles the parts to remove
any residual blast media adhering to the parts. Afterwards, the parts move
directly to the next step in
the process.
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WTSK Tunnel System
WTSK deflashing tunnel
WTSK 2201
Transfer from the blasting tunnel to the
cleaning drum with vibrating trough
WTSK cross-section
WTSK OVERVIEW
One or two blast wheels,
designed for continuous operations
Tunnel deflashing machines
were developed primarily for
the deflashing of fragile
shock-sensitive components.
TECHNICAL
DESCRIPTION 

The tunnel transport system
carries the fragile components, successively, at a preset
speed through the deflashing
zone, tumbling them continuously.
The tunnel is equipped inside
with polyurethane elements
to ensure the pieces are deflashed on all sides and
emerge undamaged.
For the automatic deflashing
of:
 Fragile, medium-sized components in a single piece
continuous process
Typical applications:
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Meter housings and terminal
bars
Fragile switch components
Steam iron handles and
other handles with complex
shapes
Terminal housings
Fragile miniature circuit breaker housings
Ashtrays
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Through Feed Deflashing Machines
SAB 370-SK Compact Conveyor Unit
Blast media preparation with vibratory
screening unit and cascade
SAB 370-SK 1+1
Component transport system
SAB 370-SK 1+1 cross-section
SAB 370-SK OVERVIEW
For the automatic deflashing
of:
 Thin-walled and fragile components
 Small to medium quantities
 Small to medium-sized components
Sonderausstattung:
A conveyor unit for transporting shock-sensitive components placed individually on
component holders by either a
handling system or a robot.
Typical applications:

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Switch covers
Belt pulleys
Steam iron components
Circuit breaker
The conveyor machine SAB
370-SK from Hunziker® is a
small, compact machine offering the same advantages
as the larger machines of this
series.
TECHNICAL
DESCRIPTION 

The pieces to be deflashed are
placed on the wire mesh conveyor either manually or via a
handling device. The conveyor then transports the pieces between the blast wheels
in the blasting chamber.
Afterwards, the pieces move
through the blow-off zone,
where any remaining blast
media adhering to the pieces
is blown off. Leaving the blasting chamber, the pieces exit
the machine via a chute (or
optional vibrating trough).
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SAB 470-SK High-Performance Machine
Blast media recovery hopper
with cascade separator
SAB 470-SK 2+2
Infeed/ simplified component transport
SAB 470-SK 2+2 cross-section
SAB 470-SK OVERVIEW
Four blast wheels continuous
or indexing operation, optional
parts transport system
The SAB 470-SK 2+2 continuous feed system is a high performance flashing machine
equipped with four blast
wheels designed for the continuous deflashing of large
quantities of thermoset components.
TECHNICAL
DESCRIPTION 

Two blast wheels located
above and two below the
transport belt ensure intensive and uniform treatment.
In the SAB 470 (in contrast to
the small, compact conveyor
machine) a bucket elevator
moves the blast media to a
cascade separator located
above the blast wheels.
For the automatic deflashing
of:
 Small and large quantities
 Small and large-sized components
 Fragile components
Typical Applications:
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Components made of unsaturated polyester (SMC/
BMC) such as reflectors,
meter housings, etc.
Steam iron parts
Switch housings
Switch covers
Pan handles
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Manufacturing Cells
WS 1200 Swing Table Deflashing Machine
WS 1200 in a manufacturing cell
WS 1200 with blast wheel
Loading system
WS 1200 cross-section
WS 1200 PROFILE
A deflashing machine equipped with one to eight blasting
nozzles, operating in two cycles
For the automatic deflashing
of:
 Fragile components in a manufacturing satellite
 An entire mold cavity
Variable Equipment for the Stations:
 Rotating satellites with one
to six component holders per
station
 Satellites mounted in the direction of rotation
Typical Applications:
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Valve housings
Pump housings
Reflectors / plugs
The WS 1200 manufacturing
cell has been specifically designed for the gentle deflashing of diverse thermoset
components and for variable
capacities.
TECHNICAL
DESCRIPTION 

In a dual-step operation involving a swing table, the
molded components are deflashed either individually or
in groups of two on opposite
satellites. While one of the satellites is being loaded or unloaded, the components on
the other satellite are being
deflashed.
The modular system enables
different configurations to
suit individual requirements.
The deflashing machine can
be seamlessly and reliably integrated into a manufacturing cell. Sample applications
include situations where one
or more injection or compression molding machines are
producing diverse components that should subsequently be automatically
deflashed.
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SAS 1400 Turntable Unit
Drehtisch mit Satelliten
SAS 1400
Abblaskammer mit Düsen
Schnittbild SAS
SAS 1400 OVERVIEW
Turntable units are generally
designed for the processing
of a particular workpiece with
an individual degree of automation. For this reason, the
SAS series is based on a modular system that delivers an
economical solution that allows both manual feed, as
well as semi automatic or
fully automatic, robotic operation.
TECHNICAL
DESCRIPTION 

At the loading/unloading station, the blasted workpieces
are removed from the workpiece mountings, and replaced with unblasted workpieces. Indexing of the satellites allows the workpieces to
move through the various
workstations: loading/unloading, infeed gate, blast positions, blow-off position/outlet
gate. In the linear operation,
the nozzle movement devices
move vertically and horizontally, thereby enhancing the
machine’s degree of automation and ensuring a focused
blasting of the workpieces.
Blasting machines equipped
with up to 10 synchronized alternating blasting guns, with
up to 12 satellites or manual or
robotic feed.
Semi-automatic or fully-automatic operation
For the deflashing of:
 Small to medium-sized components
 Fragile components
Typical Applications:
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Engine covers
Pump housings and wheels
Suction manifolds
Air intake manifold
Thin-walled miniature circuit
breaker housings
Pulleys
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Specialized Machines
Blasting Chambers
ST cabinet with screening unit
WSA 2000 with sliding gate
ST cabinet with workpiece transport
mechanism
ST-cabin with rotating cage
ST-cabin with working grate
ST-cabin with satellite
Integrate proven Rösler machine components with your
blasting machines. Regardless
of processing needed, workpie-
ces involved, or degree of automation, you’ll find the right
transport and blasting machines, and workpiece holders, to
streamline your operations and
maximize operational efficiency.
SAB 40/3000 Deflashing Machine and Lead Frames
SAB 40/3000
OVERVIEW
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Up to 20 blasting guns
Continuous operation
Desined and equipped for
manual, semi-automatic
or fully-automatic use
Can handle up to 1,800
lead frames per hour
Adjustable guide rails to
accommodate lead frames
of various
Lead Frames
SAB 40/3000
The SAB 40/3000 deflashing
machine was developed especially for use with lead frames
ding device. The lead frames
are loaded continuously on the
machine’s conveyor belt,
which
transports
them
through the blasting chamber
equipped with injector nozzles
on both sides. Cams located
on the conveyor belt prevent
the workpieces from slipping.
Next, the lead frames move
through a blow-off zone in
which air nozzles remove any
blast media still adhering to
the workpieces.
TECHNICAL
DESCRIPTION 

Loading of the lead frames is
done manually, semi-automatically using magazines, or
fully-automatically using a loa-
Specialized Machines
RMT 3 Series Batch Machines
Firmly sealed steel drum holding blast
media, with optimally-shaped conical
pile of workpieces
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The numerous advantages of
this blasting machine are evident in its robust, compact design, compliance with the
highest safety standards and
many potential applications.
The Series RMT 3 multi-tumbler is designed for bulk processing of small components
having a minimum size of 2.5
mm. However, this machine is
also capable of efficiently and
economically handling larger,
non-fragile workpieces. Mul-titumbler machines are wellsuited for use as stand alone
systems as well as integrated
with fully-automatic systems
with loading/unloading equipment, which can be obtained
from us. Units to automatically
replenish the blast media can
be integrated to allow reliable,
unattended operation.
Typ RMT 3
Bulk Deflashing Machines – SKI and RMBC Series
SKI and RMBC series machines
are especially suited for the batch
processing of plastic components
that can be tumbled.
 SKI
Typ SKI
Wire mesh drum with nozzles
SERIES 
The components are tumbled
and blasted by blast nozzles in a
wire mesh drum. For ease of removal, there is a side gate
through which the blasted components can be removed.
 RMBC
SERIES 
A perforated, continuous rubber
belt interacts with a laterally rotating disk form the chamber
where the component batches
are loaded. The machine is
equipped with a blast wheel.
Typ RMBC
View of the ribbed conveyor belt
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After Sale Service
“The support that you need combined with experience you
can count on.”
Your enterprise’s success depends in part on solutions designed to minimize downtime,
reduce costs, and operate machinery at peak performance.
We understand your needs, and
our strong, experienced service
team offers you the support
you require.
Professional maintenance of
your machines ensures your
corporate success. In our tailored service contracts, we assume responsibility for this,
enabling you to focus on your
core business.
 SPARE
PARTS AND
WAREHOUSE 
The long-term relationship
with our suppliers enables us
to meet our obligations and
offer you fast, on-site service.
Our experts always stand ready
to fulfill your requests when
handling any service or maintenance work. As a provider of
thermoset deflashing systems,
we maintain a large inventory
of spare parts, and are able to
promptly deliver key components ex-warehouse.
Process media
Antistatic media and blast media
 ANTISTATIC
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MEDIA 
The following anti-static media
are used, depending on application and conditions:
 RAST 20
 RDST II
 BLAST
MEDIA 
The wide range of potential
applications requires a correspondingly broad range of deflashing media. Long service
life, low wear and the shortest
possible deflashing time are
the key criteria for the blast
media. Ongoing comparison
tests, deflashing tests, and examination of the blast media
ensure constant refinement
and are the reason that the
simple “ancillary medium” has
evolved into a major factor in
cost reduction.
We can supply you with a wide
assortment of different blast
media for testing. Our large
warehouse carries a large inventory of standard deflashing
media in various granule sizes.
Our deflashing machines can
be operated with the following
deflashing media:
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Polyamide (PA), cubical or
cylindrical
Polycarbonaet (PC) cylindrical
Filled polyamide deflashing
media for special applications
Natural products from nutshells or pits (cherry, apricot,
etc.)
Thermoset material
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and 60 representations worldwide
Surface Finishing I Shot blasting I Engineering I Environmental Techniques
Publ.No. GB. 186.05 – Specifications are subject to change without notice
GB