Rollers for railway switch blades and swing nose crossings
Your Benefits At a Glance
Rolling instead of lubricating
Austroroll sets international standards for maintenance-free roller devices for railroad turnouts with the consistent development of the «rolling instead of lubricating concept.» Austroroll saves up to 25 liters of lubricant per year and point. Inefficient and labor-intensive slide chair lubrication is now a thing of the past. More than 300,000 roller units are successfully in use by our customers worldwide.
A brand from Wieland
Wieland Austria GmbH is part of the German Wieland Group based in Ulm. Wieland operates globally as a specialist for copper and copper alloys and employs more than 9,400 people at over 80 locations.
30 years of experience
The Austroroll switch blade roller system is produced at the Enzesfeld plant and distributed worldwide by Wieland Austria GmbH. Over 260 employees work at this site 30 km south of Vienna. The product range includes copper alloys from the company‘s own foundry as well as semi-finished products, plain bearings, roller bearing cages and precision components made from these alloys. For more than 115 years, the Enzesfeld plant has stood for the highest quality and innovation.
Sustainability at all levels
The extremely long service life of Austroroll and the complete elimination of the slide chair lubrication are just two sustainability aspects that speak in favor of using our rollers. Reducing the carbon footprint of our products and processes across the Group, strengthening the circular economy and promoting transparency and responsibility along the supply chain are the main concerns of Wieland‘s sustainability strategy.
1992
More than 30 years of
experience with rollers
60 %
Up to 60 % reduction of
throwing forces
> 300,000
Austroroll units in operation
worldwide
How it works
The Austroroll roller with pre-tensioned springs in contact with the switch blade.
When Austroroll is installed in the sleeper bay, the two steel springs will be pre-tensioned so that the roller is in permanent contact with the switch blade.
The roller in contact with the switch blade before rolling up, with horizontal force component.
The horizontal force component presses the switch tongue against the stock rail without lifting it, thus helping the switch to reach the correct end position.
This sectional view shows the raised switch blade.
At the start of the setting movement, the tongue immediately rolls onto the roller and is lifted off the slide chair. It then rolls into its end position without wear and with low friction.
Reduction of the throwing force by using Austroroll in a EW49-190-1:9-B.
The switch blade remains on the roller until the next setting procedure. Due to the pre-tensioned rollers, neither static nor sliding friction occurs. This permanently reduces the throwing forces and increases the service life of the turnout drive.
Construction Advantages
1. Positioning in the sleeper bay
Austroroll in a retrofit version for a switch point on concrete sleepers.
The position of the Austroroll switch point roller between the sleepers – and not next to or in the sliding chair – allows a flexible mounting with pretensioned springs. In addition, neither dirt nor snow or ice can collect and block the roller. This special arrangement also allows the installation near to the heel of the switch blade.
2. Elastic support
Austroroll single roller with springs without mounting devices.
Austroroll is equipped with appropriately dimensioned, hardened steel springs and surface protection. The flexible system and the position in the sleeper bay make Austroroll resistant to impacts, vibrations or other dyna- mic loads.
3. Special roller design
Section of the roller with axle and adjustment screws.
The large roller diameter of 76mm makes it easier for the switch blade to roll into the open position. Two lifetime-lubricated roller bearings ensure low friction values. Thanks to the hermetic, 3-level sealing, Austroroll is insensitive to dirt, water, sand, grinding dust, milling chips and other contaminants. This ensures a long service life.
4. Modular system
Thanks to a modular concept, the right solution for our customers can be selected from various components depending on the rail profile, slide chair design, sleeper spacing and ambient conditions.
Austroroll can be used for all known switch point constructions,
regardless of the manufacturer.
- Rail profile e.g. UIC 60, S54, S49, AREMA
- Turnout design e.g. EW, EKW, DKW, KR, DW
- Sleeper types e.g. concrete, wood, steel, slab track, composite sleepers
- All track gauges and all speed classes
- All load and route classifications
In new turnouts the Austroroll mountings can be integrated and pre-assembled with the sleepers and slide chairs. Existing points can be adapted quickly and easily. It is not necessary to replace the existing slide chairs. We train our customers to ensure independent installa- tion. Our detailed video instructions also provide support thereby.
Video instructions
5. Tamping, grinding, milling
Unhindered tamping, grinding or milling of the points is possible at any time with the installed rollers. The rollers do not need to be covered or protected separately for these activities.
The Austroroll components are made of corrosion- resistant and high-strength materials. They are designed for harsh railroad conditions and can withstand extreme temperature fluctuations from -40 to +80 °C (-40 °F to +176 °F), unfavorable weather conditions and wear.
Tamping with installed Austroroll rollers.
Individual customization for our clients
In addition to our product quality, we also offer our customers a high level of advice. We strive to work together to find individual solutions and optimizations for any type of construction. One example of this is the introduction of mounting plates for newly built turnouts at Deutsche Bahn AG.
Austroroll with mounting plates for new turnouts at DB InfraGo AG
With the introduction of the W-fastening for all new UIC-60 turnouts of Deutsche Bahn, we have developed a new, adapted mounting solution. The aim was to retain the advantages of our roller system and to further simplify the installation. As a result, a new mounting plate was introduced especially for our customer. This mounting plates are installed in the sleeper factory together with the plastic intermediate plates and the slide chairs. The pre-assembled sleeper sets are then delivered to the construction site.
There, the adjacent intermediate mounting plates are joined with a spacer rod after the sleepers have been laid, and before the stock rail is attached. The spacer ensures that the sleeper spacing is correct, remaining underneath the stock rail after the points have been installed.
Austroroll with mounting plates and spacer rod to secure the sleeper spacing for new turnouts.
Double roller in “new construction version” with mounting plates in an EW UIC60-1200-1:18.5-w-VS.
Roller installation in just a few minutes
With this mounting solution, the springs already have the required length. The supplied, ready-to-install rollers can therefore be fitted and adjusted within a few minutes after the initial tamping.
The successful cooperation and further development of Austroroll with DB Netz AG was underlined by the “DB Supplier Award” in the “Railway Components” category.
Individual customization for our clients
Lubrication-free, movable frogs
The patented Austroroll moveable frog roller (MFR) is a rolling device for frogs with moveable point, also called swing nose crossings. With the combination of Austroroll switch rollers and Austroroll frog rollers, it is possible to achieve completely grease-free points. This results in a significant throwing forces reduction. In addition, the track availability is increased, operating costs as well as switch point malfunctions are minimized.
Austroroll MFR is suitable for all known designs of movable frogs. Special mountings and displacement brackets are used for new turnouts as well as for retrofitting in ballasted track or on slab track.
Austroroll MFR in a retrofit version.
New construction solution for pre-assembled switch points
This construction design allows an installation of the mounting devices in the switch plant and a subsequent delivery with a switch transport wagon to the site. This shortens the installation time and thus the time for the track possession.
Simple operating principle
The principle of functioning is similar to that of the proven Austroroll rolling device in the switch blade area. However, in the frog, the very cramped space conditions do not enable any direct installation of rollers at or under the moving frog point. The function of lifting the frog during the setting procedure is performed by a displacement bracket.
Austroroll MFR on slab track, type W300.
Movable frog with Austroroll MFR.
Sectional view of a movable frog with displacement bracket and special Austroroll frog rollers.
This displacement bracket is attached under the frog and guided by two rollers mounted outside of the wing rails. The bracket lifts the frog tip at the start of the setting process, transports it to the opposite end position and sets it down again.
Installation examples
New construction solution for pre-assembled switch points
This construction design allows an installation of the mounting devices in the switch plant and a subsequent delivery with a switch transport wagon to the site. This shortens the installation time and thus the time for the track possession.
For inquiries:
Nesrin Hijazi – Business Director
PR Arabia Agency
Jeddah, Saudi Arabia
Mobile: +966 557719494
Email: n.hijazi@prarabia.me
Website: www.prarabia.me
Abdulrahman Rammal – Media Relations Manager
PR Arabia Agency
Jeddah, Saudi Arabia
Mobile: +966 508 421 187
Email: abd.rammal@prarabia.me
Website: www.prarabia.me
Austroroll MFR in a retrofit version.
New construction solution for pre-assembled switch points
This construction design allows an installation of the mounting devices in the switch plant and a subsequent delivery with a switch transport wagon to the site. This shortens the installation time and thus the time for the track possession.
For inquiries:
Nesrin Hijazi – Business Director
PR Arabia Agency
Jeddah, Saudi Arabia
Mobile: +966 557719494
Email: n.hijazi@prarabia.me
Website: www.prarabia.me
Abdulrahman Rammal – Media Relations Manager
PR Arabia Agency
Jeddah, Saudi Arabia
Mobile: +966 508 421 187
Email: abd.rammal@prarabia.me
Website: www.prarabia.me
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