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.



RBZP Finger Expansion Joint

RBZP finger expansion joint consists of finger plates and anchoring system. It’s suitable for bridges with movement capacity under 120mm. With excellent longitudinal displacement property, RBZP finger expansion joint can facilitate longitudinal direction displacement, reducing clanking and bumping caused by vehicles passing the joint. Therefore, the impact force of vehicles to the joint device can be reduced greatly, which improve the durability and longevity.