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Bonded Insulated Joint Assemblies

Allegheny Rail Products provides factory assembled high performance bonded insulated rail joints from its ISO registered facilities in Pueblo, CO and Niles, OH.

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Insulated rail joints serve as the central nervous system of railroad lines, preventing electrical current from flowing between the ends of two adjoining rails.

When a train passes over a joint, the train's wheels complete the electrical circuit -- enabling rail operators to know the precise location of trains within complex railways, and triggering crossing signals when a train approaches a road crossing.

In the manufacturing process, L.B. Foster team members receive 80-foot pieces of steel rail, cut them in half and create electrical discontinuity by placing an insulating material (Kevlar®) between the two halves. Then they strengthen the joint by adding a support bar and bind all the components in place with an epoxy.

Factory Assembled:

  • Epoxy bonded with high integrity TEMPRANGE® II epoxy for long life

  • Full-contact, micro alloy joint bar

  • Assembled to specified length, up to 60' long

  • Available in worn rail/transition rail configurations

  • Assembled with A-490 bolts or huck pins (6 or 8)

  • Ultra long life ENDURA-JOINT® with Aramid insulation also available

KEVLAR® is a registered trademark of E. I. du Pont de Nemours and Company or its affiliates.

illustration of a bonded insulated joint.

Product illustration shows features of our bonded insulated joint assemblies.

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  • L.B. Foster
  • North America

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We enjoy a market-leading reputation for high quality, high performance solutions in rail and infrastructure.

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When you choose to partner with L.B. Foster, you're not just selecting a vendor; you're aligning with a trusted global leader renowned for its commitment to excellence and superior performance.

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