ラサ工業 List of Products and Services

This catalog introduces Lasa's "Tunnel Boring Machines," which are active in building lifelines. The Unicorn Tunnel Boring Machine is designed for pipe diameters ranging from φ250mm to φ3000mm, and it can adapt widely to various soil types, including boulders, soft rock, and medium-hard rock, which are generally considered impossible. By changing the cutter disk, it can also be adapted to ordinary soil, hard soil, and gravel layers mixed with pebbles. We feature the "DH-M" mud density method, as well as the "DH-D" mud water method and the "BM" earth pressure method. Please use this information for product selection. [Featured Products (Partial)] ■ DH-M (Mud Density Method) ■ DH Premium (Mud Density Method) ■ DH (Mud Water Method) ■ DH-D (Mud Water Method) ■ DH-L (Mud Water Method) *For more details, please refer to the PDF document or feel free to contact us.

The "DH-M" is a unicorn mud shield tunneling machine with an inner diameter of 600 to 2200 meters. It can handle large gravel, boulders, and rock through the application of various cutter discs. It is capable of long-distance and curved tunneling. Additionally, with the powerful cone crusher equipped, there is no need for in-mine work for gravel size selection, allowing for continuous suction and spoil discharge. 【Features】 ■ Equipped with primary and secondary crushing mechanisms for high torque ■ Capable of handling large gravel, boulders, and rock through the application of various cutter discs ■ Continuous suction and spoil discharge possible without in-mine work for gravel size selection due to the powerful cone crusher ■ Capable of long-distance and curved tunneling *For more details, please refer to the PDF document or feel free to contact us.

"Unicorn Premium" is a mud-based tunneling machine designed for long-distance and sharp curve propulsion, capable of handling large boulders, rolling stones, and bedrock due to its high rotation and high torque equipment. It demonstrates its power under harsh conditions. With the addition of a secondary crusher, there is no need for in-mine operations such as gravel diameter sorting, allowing for continuous suction and soil discharge. The adoption of a multi-stage folding mechanism makes it suitable for sharp curve propulsion, and bit replacement can be performed from inside the machine, making it applicable for long-distance propulsion. 【Features】 ■ Demonstrates power under harsh conditions ■ Suitable for long-distance and sharp curve propulsion ■ Large boulder and bedrock crushing tunneling machine ■ Applicable to large boulders, rolling stones, and bedrock due to high rotation and high torque equipment ■ Suitable for sharp curve propulsion due to the adoption of a multi-stage folding mechanism *For more details, please refer to the PDF document or feel free to contact us.

The "Unicorn BMR Type" is a rectangular tunneling machine using the earth pressure method. By adjusting the eccentricity of the eccentric axis and the appropriate arrangement of the cutter bits, it is capable of excavating not only a "square cross-section" but also a "rectangular cross-section" with any different aspect ratio. It can be used for connecting passages between underground structures, as well as underpasses for tracks and roads, rainwater retention tanks, and protective walls for above-ground and underground installations. 【Specifications】 ■ Drive mechanism: Planetary gear mechanism ■ Planetary gear / Fixed gear: 1/2 (internal gear) ■ Bit arrangement: Full face excavation in one rotation ■ Method: Earth pressure method ■ Applicable soil types: Ordinary soil, gravel mixed soil *For more details, please refer to the PDF document or feel free to contact us.