Roller Conveyor Machines Type RRB - www.rosler.us
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Roller Conveyor Machines
Type RRB
Rösler Roller Conveyor Machines
Type RRB
Rösler roller conveyor shot blast systems are used for de-scaling, de-rusting, paint removal, paint
preparation and general cleaning of metal sheets, pipes/tubes, I-beams and weldments. Optimum
blast results are achieved on thin gauge aluminum profiles as well as on heavy steel profiles and steel
slabs. Standard roller conveyor machines can process parts from 2 ft to 16.5 ft width with roller con-
veyor speeds from 1.6 to 13 fpm. High performance
systems allow parts speeds of up to 24.5 fpm. The
quantity of blast wheels and their position ensures
optimum blast results. The thrown blast media is col-
lected with screw conveyors and transported to the
media hopper through an elevator, screen drum or til-
ting screen and air wash separator.
The machine width, number of blast wheels and their
location is determined by parts size and production
speed. Standard systems are used for processing
metal sheets and beams. Standard systems are
frequently modified to allow processing of welding
constructions of different sizes and geometries.
Quality – made in Germany...
For Rösler the word quality has deeper meaning than just fault - free, reliable and durable
products. Quality is an essential part of our work philosophy and is expressed in the
personal sense of duty and quality found in each of our
employees. Certification according to DIN ISO 9001 is
living proof of our commitment to quality.
RÖSLER MACHINES
ALL AND UNITS HAVE THE
geprüfte
Sicherheit GS AND CE MARKS
2
Applications
Surface preparation Beams, metal sheets, pipes/tubes, slabs, welding constructions
Smoothing Pickled or eroded surfaces, machining lines, etc.
Decorative blasting Light metals, stainless steel, copper, brass, etc.
Peening Parts exposed to high stress, torsion bars, etc.
De-burring Flame cut, sawed and stamped parts
Hurricane®-blast wheels
An essential feature of the Rösler shot blast systems are the high performance Hurricane® blast
wheels: Their quantity, position and performance along with the geometry and dimensions of
the blast cabinet ensure optimum blast results.
Dust collectors
Separate or integrated systems -- dry or wet systems -- with or without explosion protection!
Rösler offers a wide range of dust collector models which incorporate the latest dust collecting
and separation technologies. Rösler offers dust collector solutions for any shot blast
application.
Modular equipment designs
Rösler roller conveyor shot blast systems can easily be expanded to fully automatic
preservation (paint) lines. Painting of the parts is frequently required to put a corrosion
protection coating on the blasted parts. There are special shop primers which provide a
corrosion protection coating for up to 6 months.
Roller conveyor shot blast/preservation lines can easily be integrated into existing
manufacturing processes. Corrosion protection is particularly important for ship yards,
because long manufacturing cycles require extended temporary corrosion protection.
However, steel dealers, steel mills and steel fabricators are more and more utilizing such
preservation technologies.
Integrated blasting/painting is possible
by expanding the shot blaster with a
paint line
3
Rösler Hurricane ® Blast Wheels
Blasting media is fed through a central feed tube into the high speed rotating blast wheel. The centrifugal force,
of the rotating wheel, throws the media at the components to be blasted at speeds of up to 300 ft/sec. The
design of the blades, insertion point, and the speed of the blast wheel determine the processing results in
conjunction with the blasting media. In order to achieve an economic utilization of the blasting media, the
amount of blasting media and the transfer to the blast wheel blades can be easily adjusted. The blast media
flow is either fixed or can be adjusted automatically through the PLC/control panel. A clam shell valve controls
the media flow from the media hopper to the blast wheels. The blast
pattern – e.g. position of the hot spot – can easily be adjusted from
outside of the blast wheel. The blast wheel
speed can be adjusted with a frequency
inverter thus allowing gentle or very
aggressive blasting.
Area covered by
shot blasting media
Component
Hot-Spot
Shot blasting
pattern
Blasting profile
Blast Wheels
Type/wheel diameter Drive power (hp)
Hurricane 28 ®
7.5
10.0
15.0
Hurricane® 32 7.5
10.0
15.0
20.0
Hurricane® 42 15.0
20.0
25.0
30.0
40.0
Hurricane® 52 30.0
40.0
50.0
60.0
Tool steel, alternative: carbide Date: 11/07
4
Blast Wheel Hurricane ®
Blast Wheel Hurricane ® H 28/32/42 with 6 blades
Blast Wheel Hurricane ® H 52 with 8 blades
Technical features of the Hurricane ®Blast Wheels
High blast efficiency and performance
Long useful blast wheel life
No internal fixturing of blades
Easy accessibility and easy replacement of the blades
Direct drive blast wheels with special motor bearings means less spare parts and less noise
Blades, impeller unit, control cage, available in full tungsten carbide steel (option)
Blast wheel can operate clockwise or counter-clockwise
Blast wheels available with a diameter of up to 20.5 inch
Blast wheel cover protected with safety switch
Massive welded steel housing
Short spare part delivery times
Easy to replace wear liners (chilled cast iron and/or doubled hard metal steel) in the housing
5
Rösler Roller Conveyor Machines RRB
Technical data: 1 RRB 11/5 RRB 16/5 RRB 22/5 RRB 27/6 RRB 34/6 RRB 42/6 RRB 52/6
beams, metal beams, metal beams, metal beams, metal beams, metal beams, metal beams, metal
Parts range sheets, sheets, sheets, sheets, sheets, sheets, sheets,
pipes/tubes pipes/tubes pipes/tubes pipes/tubes pipes/tubes pipes/tubes pipes/tubes
Max. Parts width (inch) 40 60 80 100 128 160 200
Max. Parts height (inch) 20 20 20 24 24 24 24
Load limits by weight
402 402 670 1,006 1,341 1,341 1,341
(lb/linear ft)
6 x 15 10 x 30 12 x 30
Blast wheels and power (hp) 2 4 x 10 4 x 15 6 x 15 8 x 20
6 x 20 8 x 30* 10 x 30*
4 x 15 4 x 20 6 x 20 8 x 30
6 x 30 *for sheets only *for sheets only
Machine length without
blow-off/brush-off (inch) 142 142 165 165 165 165 165
Machine length with
244 268 276 299 299 299 299
blow-off/brush-off (inch)
Machine width (inch) 79 114 150 189 217 244 272
Machine height (inch) 213 220 256 315 315 354 354
Air volume dust collector (cfm) 2,840 4,250 5,670 8,500 11,335 14,170 17,000
Date: 03/08
Foundation required No No/Yes Yes Yes Yes Yes Yes
1
Special designs and higher blast wheel power upon request.
2
Sled for removal of blast wheels available as an option.
6
Technical details of the RRB
Rösler RRB machines combine innovative design with proven
machine components. This ensures high reliability for the most
difficult applications. Feed rates up to 24.5 fpm with our high
performance special machines.
1
2
Roller conveyor shot blast machine
Robust welding construction 1
Easily accessible, large inspection doors 2
Easy integration into automated manufacturing systems
Blast chamber
Seamless lining of the blast chamber with manganese steel 3
Canted blast wheel position for optimum blast results 4
No bolts or nuts in the blast chamber
3
4
Patented sled for easy removal of the blast wheels 5
Reduces cost for foundation
Very important when high ground water levels exist
Facilitates maintenance and repairs
5
7
Roller conveyor system
Robust roller conveyors are driven over their complete length 1
Rollers made from wear-resistant material
External drive with gear motor 2
Variable roller spacing
If required, lined with rubber for better grip and gentle parts handling
Special roller designs or guides for bar stock available. For example for the tube blaster RDR 3
Roller conveyors with heat treated (hardened) rollers in the blast zone
Roller load capacity is variable in line with the parts loads
Automatic parts recognition on the side of the roller conveyor 4
4
2
3
1
Blast System
Hurricane®-Blast Wheel 5
Direct drive (less wear parts, less noise)
Possibility to change rotational direction 8
6
of blast wheel
Easy, fast replacement of blades 6
Optimal wheel location on blast chamber 7
Blast area completely lined with cast wear 5
liners 7
Wheel cover safety switch 8
Automatic media adder*
Ensures constant media operating mix
Low media level sensor with signal to PLC 9
Pneumatic valve for media dosing into elevator shaft 10
9
* optional
10
8
Media transport and media cleaning
Media collecting funnel with auger below roller conveyor 1
Media auger 2with rotary screen drum or pivoting screen 3
· Coarse dust particle discharge with ground-level container
· Even distribution of blast media to air wash separator
Tight fitting clam shell valve 4
Short distance to blast wheel
Easy adjustment of media flow (with linear scale)
2
1
3 4
Bucket elevator
· Wear resistant elevator buckets bolted onto elevator belt 5
(= efficient media cleaning through even media flow to air wash separator)
· Wear resistant connectors for endless elevator belt
· Rotation monitor (control) at lower pulley
5
· Crowned pulley ensures belt tracking
9
2
3
1
4
5
Single stage air wash separator
· Large width of air wash separator 1
with multiple media flow adjustment baffles 2
· High volume media hopper with low level sensor 3
· Additional media distribution auger 4 6
below the media flow adjustment baffles
· Large airwash curtain for better media cleaning 5
· Pre-cleaning 6 with pivoting screen; screen tilting activated 7
by pneumatic cylinder 8
· Air flow at all air take-off points can be adjusted separately 9
9
8
7
10Part loading/unloading
1
Rösler roller conveyor machines can be equipped with modular transport
systems (optional with spill hopper and media return auger).
Removal of media from the parts surface and return to media recycling 2
system
Automatically controlled blow-off 1 and brush-off 2 system
Central control panel
for complete control of all equipment functions
· Multiple automatic processing programs available
· Manual or Automatic operation
Rösler dust collectors
Each dry blast application produces dust!
Rösler dust collectors incorporate the latest dust extraction and collecting
technologies. Rösler offers a dust collector for every conceivable blast application.
All Rösler dust collectors are in full compliance with governmental safety regulations.
As required, they can be upgraded to handling combustible dusts (explosion-proof
systems).
Two different systems – wet or dry collectors – can be offered
Frequently dry collectors are equipped with a fine filter “Police filter“.
Residual dust load < 0.00043 grains/cu ft.
In case of combustible or explosive dust the use of explosion protected
dust collectors is required by law!
Dry collector (standard), optionally
available in explosion protected version
11Automation
Our customers can choose from multiple equipment
options. Rosler roller conveyor systems are available as
stand-alone shot blast machines all the way up to fully
automatic preservation lines
RRB 16/5
For blast cleaning (de-scaling, de-rusting) of metal
sheets and beams
RRB 11/8
Special version with larger pass height. Special covers
prevent media spillage.
RDR 400 Rösler pipe or tube blaster
For single file blast cleaning of bar stock or tubes
12RRB 27/6
Roller conveyor blast machine with double tilted
blast wheels (3 upper and 3 lower wheels) for
blast cleaning of metal sheets
Blast cleaning of welding constructions
Special roller conveyor machines for blast cleaning of
complex welding constructions where all surfaces are cleaned.
For example head- and base-plates, welded ribs and
re-enforcements must be de-scaled and de-rusted. And the
welding seams must be cleaned.
All-around blast cleaning of outer and inner surfaces takes
place through 2 “blast zones”. The first “blast zone” consists of
equally spaced blast wheels mounted onto the roof and
bottom of the blast cabin – with larger machines there are also
blast wheels mounted to the cabin walls. The second “blast
zone” of blast wheels is placed at a negative angle relative to
the direction of the parts transport. The blast pattern created by
these two “blast zones” allows all-around blast cleaning of a
vertically placed base-plate.
Preservation lines
Rösler roller conveyor blast machines can be upgraded to complete preservation lines (Pre-heater, blast machine, paint
booth, dryer). These lines are complemented by customer-specific parts transport systems.
13Test Centers and Service
Finding a better way…a commitment to our customers
Test Centers worldwide
Throughout our worldwide organization we adhere to strict
quality control procedures. This applies especially to our test
centers where we develop process solutions for all kinds of
surface finishing problems. Each branch of the Rösler group
features its own test center equipped with the latest Rösler
finishing equipment. This equipment is utilized exclusively for
processing trials with our customer’s sample parts.
For Rösler service is not just an empty promise
Professional advice, short turn-around times and prompt and
reliable service: Rösler offers single-source surface finishing
solutions, worldwide!
Installation and training
Machine installations and operator training are performed by
our team of highly skilled and experienced service engineers
In-House Manufacturing
In line with our corporate philosophy to be a true “single source” supplier,
Rösler engineers and manufactures all equipment components like vibratory
motors; load/unload systems, control panels, welding constructions, laser cut
parts, etc., in-house.
Spare parts service for all recognized shot blast systems
Surface finishing equipment generally is subject to a considerable amount of
wear. For this reason preventive maintenance and prompt supply of spare
parts are a key requirement for any surface finishing installation. Rösler
maintains a complete inventory of spare parts in every branch, ensuring local
supply and fast availability, be it wire mesh belts, blast wheels, pressure
vessels or any kind of nozzles, etc. To minimize downtime, parts are either
delivered and installed by our own field
service personnel or shipped to our customer’s
location overnight.
Maintenance and repair service
Rösler maintains a well trained staff of
professional field service engineers providing
prompt, reliable maintenance and repair
service as well as overhaul of your older
equipment.
14Towards perfect
interaction
The name RÖSLER stands for
technological leadership in the
world of mechanical surface
treatment. We offer our cus-
tomers innovative products and
services, a complete range of
process engineering know-how,
and the skills to link systems into
perfect combinations. Right from
the start, our strength has been
user-related solutions. Solutions
which ensure our customers
receive the ultimate in quality
and economy of service – and
that means giving them that
decisive edge over the competi-
tion. Whether surface finishing
or shot blasting technology –
during elaborate practical tests
we will always find the optimum
solution. In more than 60 coun-
tries we support our customers
with a close-knit network of
subsidiaries and international
agencies, giving them a
complete range of machines
to cover the key sectors in
surface treatment technology,
grinding, finishing and shot
blasting, all from one source.
You tell us what you need; we
find the most economical and
technically rational solution.
15www.rosler.us
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• and more than 60 representations worldwide
Surface Finishing · Shot Blasting · Engineering · Environmental Techniques
Surface Finishing · Shot Blasting · Engineering · Environmental Techniques
RÖSLER Oberflächentechnik GmbH · www.rosler.com
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