The largest line pressure : 300kg/cm, The largest diameter : 2500mm, The maximum face length : 8000mm. Jumbo Pressure Roll, cast iron roll is one of our main products, the largest line pressure is 300Kg/cm,The largest diameter is 1,500mm,The maximum face length is nearly 8000mm,The weight of the finished rolls is nearly30 tons. Jumbo Press Roll cast iron roll