Introduction:

SFP Finger Joint can satisfy the highest demands in relation to traffic load, driving comfort and durability, by using a steel substructure and carefully designed connections with finger plates by bolt, and therefore the functioning of the joint is guaranteed to endure for many years.

SFP Finger Joints are designed for longitudinal movement capacity from 60 mm up to 500 mm. Their steel edge profiles are welded with strong anchor loops for durable connection with bridge structure. Finger plates are fixed with steel edge profile by high-strength bolts. The drainage channel is firmly connected with the two steel edge profiles, which ensures the water-tightness of the expansion joint. At the bottom of the channel, water is gathered and can flow down along the pipe to the bridge’s drainage system.

The bolt connection method ensures the quick replacement of any finger plate on site. The specially designed finger plates can reduce the noise emission and increase driving comfort when vehicles pass. The geometry of the cantilevering fingers avoids a straight transverse gap in the carriageway. The wheels of passing vehicles thus maintain constant contact with the expansion joint’s surface, reducing the noise caused by impacts with the gap edge. This results in low noise emissions and high driver comfort.

Quality guarantee:

In order to ensure an optimal finish, the border area design requires special attention. Steel cover plates are often a preferred solution due to their attractive appearance and long term durability

The quality and durability of WANBAO SFP Expansion Joints are ensured by their highly qualified staff, modern manufacturing facilities, and stringent quality control procedures. WANBAO is ISO-9001 certified and the products can meet the requirements of different standard.

Critical Material

Finger plate: S355J2 & A304

Rubber seal: EPDM &CR

Bolts : 8.8 & A4-70