Roaby, leading the technical revolution of bridge expansion joint worldwide! Its RB unit finger expansion joint with multi-directional displacement capability (RB finger joint) is a breakthrough product which reaches a high level of expansion joint technology, solving the technical difficulties of expansion joint in large-scale and long-span bridges.



RBHZ Expansion Joint

RBHZ expansion joint is composed of sinus plates and anchoring system. It is applicable to the bridge with movement capacity of 120mm or less. With excellent longitudinal displacement property, RBHZ expansion joint can facilitate longitudinal direction displacement.


The sinus plate design concept can reduce the noise when vehicles passing the joint, and also lower the impact force caused by vehicles.