Ramsas method

The soil removal method is vacuum suction! A diverse lineup of cutter heads tailored to the soil type.

The technology creates a method that forms a mud film on all excavation surfaces and constructs a highly stable tail void through approximately 25mm of overcut and the action of high-concentration mud water. The gravel is crushed within the chamber using a cone crusher and cutters driven by the outer circumference. Bit replacement can be done from inside the machine, allowing for long-distance advancement. 【Features】 ■ A diverse lineup of cutter heads tailored to soil types (φ700 to 3,000) ■ The excavation method uses vacuum suction ■ Crushing capacity is 1-axis compressive strength of 350MN/m² (RMS-GX type) ■ Bit replacement can be done from inside the machine, enabling long-distance advancement ■ The action of approximately 25mm of overcut and high-concentration mud water forms a mud film on all excavation surfaces and constructs a highly stable tail void *For more details, please refer to the PDF materials or feel free to contact us.

Special Construction Method