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| Fastening Systems for Ballastless Track |
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| Star Track Fasteners Pvt. Ltd. presents in association with M/s Amsted RPS - USA, the Modern techniques for Indian Railways and Metro Railways i.e. Resilient Bonded Baseplate Fastening Systems for Slab Track. |
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| Dimensions: |
Body Length |
400 mm |
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Body Width |
195 mm |
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Rail Seat Elevation |
44 mm |
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Rail Seat Width |
151.5 mm |
| Weight: |
15 kg |
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| Metal Parts: |
Top Plate, Containment Frame and Gauge Adjustment Clip are all ASTM 536 Ductile iron castings |
| Elastomer |
Natural Rubber Compound |
| Assembly |
Metal parts fully bonded together with elastomer |
| Anchor Bolts |
7/8" diameter bolts or studs meeting ASTM- A-325. Use lock washers in either case. If stud, nut should also meet A-325. |
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| System-Wide 24 with e-clip |
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The System-Wide ( SW-24 ) track fastener is intended to provide transit and commuter rail systems with a competitive, fully rubber bonded resilient DF design containing superior features to those of non-bonded DF. It is also completely rubber covered to provide maximum corrosion resistance. Like most bonded, resilient track fasteners the SW 24, consists of two metal components, the Top plate and Baseplate, bonded together with elastomer, Ductile iron is best suited for all metal components for reasons of strength, endurance, corrosion resistance and economics.
Except under extremely unusual conditions, a natural rubber compound is distinctly the elastomer of choice due to its superior resilience and enduring life-time characteristics (i.e. dynamics stiffness). The base Plate containing the anchor bolts is totally isolated by our natural rubber compound from the Top Plate which transmits forces imposed by passing trains. Acting as a buffer, the elastomer dampens the forces that would otherwise reach the Frame and thus greatly reduces the possibility of anchor bolt problems. In addition, the elastomer separating the two metal components, not only dampens rail forces, but also provides excellent electrical isolation. The Baseplate is normally supplied with two anchor bolt locations, one on each side of the rail and diagonally opposite. Openings for anchor bolts are slotted to permit ±½" gauge adjustment. |
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| Important advantages includes : |
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Fully bonded Assembly i.e. less number of parts. |
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Reduction of ground & structure borne vibration. |
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Ductile iron body for strength, endurance and corrosion resistance. |
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Improved ride quality. |
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Reduced impact forces on supporting structure. |
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Remarkable trouble free in service history. |
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Ensuring long term sustained performance. |
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Little maintenance over the 35 year design life. |
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When properly torqued, no rail force can reach the anchor bolts. |
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| Track Master with SKL -1Clip |
| (The Concept of SKL - 1 clips is that once installed toe load of clips is maintained within tolerance for its life time) |
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| Fasteners are usually mounted directly on the concrete invert, however, if elevation between adjacent fasteners exceed 1/16", metal or appropriate plastic shims should be installed which must provide bearing surface under the full fastener "foot-print" in all positions of adjustment. |
| There are several installation options: |
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Secured on Pre-existing slab or plinth |
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Traditional Pour-in-place. |
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Mounted on Pre - Cast Block & Block poured - in - place. |
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Mount on steel deck. |
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Mount on steel plate supported by bridge timbers on open deck bridges. |
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| Track Master with Anti theft Clip |
| (The Concept of Anti theft clips is that once installed clips remain as integral part of the fasteners for their life time)) |
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| Installaztion procedures are typically provided to writers of specifications or to project contractor prior to time of installation. |
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Installed in Hong Kong Metro - which is one of the World's quietest Rail Systems. |
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Range of our track fasteners are suitable for bridges, viaducts and tunnels and can be installed either on slab tracks, precast slabs, insitu-slabs and steel decks. |
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Unique design that provides excellent acoustic characteristics, failsafe, long term performance & good electrical isolation. |
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| Resilient Bonded Baseplate, Track Fastening System installed in Hong-Kong Metro |
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