Arm-System

YTB-1120 Arm-system

Total solution for horizontal application

Yamamoto YTB-1120 Arm-system is a complete solution for using HRB-1000 in a tunneling application. The arm-system incorporates a telescopic boom with side-angling for easy insertion of the wedge without having to move the undercarriage. Between there telescopic boom there is a rotator for controlling the splitting direction.

Advantages of Yamamoto Arm-System

Can be mounted on any standard excavator to turn it into a splitting machine

Fast and accurate insertion of wedge with telescopic arm

Side-angling for covering the full face without repositioning the undercarriage

Integrated rotator with 360-degree rotation

How does it work?

Technical specifications

Breaking New Ground: Rock Splitting at Montreal’s REM Airport Station

A Complex Infrastructure Challenge Building a subway station directly beneath one of Canada’s busiest airports presented a significant engineering puzzle. The Réseau express métropolitain (REM) project needed to excavate 2.5 million ft³ (71,000 m³) of solid limestone right under Montréal-Trudeau International Airport – all while planes landed and took off overhead. Traditional blasting was completely […]

Algeria Drainage Tunnel: Using Yamamoto Hydraulic Rock Splitter Doubles Excavation Productivity

Andrade Gutierrez, a contractor working on a Algeria drainage tunnel project, successfully constructed a 3,600 feet (1,100-meter) drainage tunnel system to combat urban flooding. Facing challenges with traditional excavation methods in sensitive limestone terrain near the city, they adopted the innovative Drill & Split method using a Yamamoto YTB-1120 arm system and HRB-1000 splitter mounted […]

Yamamoto Rock Splitter Powers Production at Birla Cement Mine in Rajasthan

At Birla Cement’s limestone mine in Rajasthan, India, a centuries-old fort overlooking the site has ruled out the use of blasting. For years, this created major challenges: the extremely hard limestone resisted conventional hydraulic rock breakers, slowing output and raising costs. A breakthrough came with the introduction of the **Yamamoto HRB-1700 hydraulic rock splitter**. By […]