Pile driving barge cylinders have to withstand the huge impact load, which is a big challenge to the service life of the cylinder, another big challenge is the corrosive environment. 

Hengli is one of the largest cylinder manufacturers in the world, equipped with certified laboratory and art of state manufacturing equipment.  We can do machining, heat treatment, painting, assembly, testing and other manufacturing and testing process in house, so we can better control the quality and lead time of products. Our plasma spraying, HVOF coatings can resist strong corrosion of seawater, optimized structure design ensures that the fatigue life of the cylinder.