PANDROL PANGUARD™ - Pandrol USA

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PANGUARD Application and Installation The Pandrol PANGUARD system is available in two different versions – as a baseplate assembly, or as a cast-in assembly. Both offer the same low stiffness and consequent high vibration attenuation capability. The choice as to which to use depends mainly on the preferred method of installation. The cast-in version on ties or individual rail seat blocks is particularly suitable for top down construction and for retrofit in place of existing ties or blocks. The baseplate assembly has been designed in order that it can be easily slid into place under the rail as a retrofit in place of existing less resilient rail fasteners. As with other baseplates, it can also be used for new construction with either the top down or bottom up method. Cast-in Assembly Baseplate Assembly Installation Tools The Pandrol PANGUARD system fastens the rail at the web unlike conventional fasteners that clamp the rail base. Therefore slightly different techniques are used to install this assembly. However, all conventional forms of track construction can be applied when fitting PANGUARD and there is no need for expensive or complicated equipment. The principle of installation is to apply a lateral precompression to the rubber supporting blocks. This force maintains the rail position laterally while allowing it to deflect in the vertical plane. Installation is a one man operation using a simple hand tool to apply the clamping force.
Pandrol PANGUARD is suitable for application on concrete ties, wood ties, slab track and bridges. The assembly features height adjustment within the assembly itself, or by shimming under a baseplate. Lateral adjustment is also available, either within the assembly or via the baseplate. Bridge Application on Concrete Ties in Ballast Tunnel Application on Concrete Slab Baseplate Application on Concrete Slab Laboratory Testing Before its first installation in track, the Pandrol PANGUARD system was tested extensively in the laboratory. A range of tests and measurements were made, as follows: • Repeated inclined dynamic load test, run for more than 4.5 million cycles • Dynamic stiffness of the assembly • Longitudinal stiffness and creep properties • Electrical resistance • Accelerated ageing (corrosion) • Resistance to chemicals used on the track • Fire resistance Laboratory Test Reports are available on request. Inclined Dynamic Stiffness Test Arrangement
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Page 3: Key components Baseplate Assembly R
Page 7 and 8: Case Study 2 Railtrack, UK Installa

PANDROL PANGUARD™ - Pandrol USA

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