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TKJ-15 Shotcreting Unit

Aimed at tunnel construction technology status in China, the TKJ-15 shotcreting unit (also known as manipulator or vehicle-mounted wet shotcreting machine) is developed by CRAC, which is one of the technology innovation achievements under the No. 7 sub-project Matching Techniques and Equipments for Mechanized Construction in Tunneling” of the research project “Research of and Control Techniques for Tunnel Surrounding Rock Stability”, a key research project of Ministry of Railways. It is the key equipment for realizing the mechanized construction of tunnels, constituting the mechanized working line in combination with the concrete batching plant and the concrete mixer vehicle.

 In addition, coupled with the high early strength shotcrete technology, Chengdu Yanfeng Science and Technology Development Co., Ltd. has developed a set of technologies for rapid mechanized construction of tunnels in soft surrounding rock, which improves the controlling capacity of primary shotcrete support for rock deformation due to its characteristics of timely workability and high early strength, increases the construction speed and reduces relevant costs by replacing CD/CRD method with bench method.

The product has the main characteristics as follows:

1. Thin-flow conveying process with compressed air

Such machine has advantages of sound adaptability to concrete mixtures and low consumption of cementitious material and additives.

2. Unique robotic arm structure

The two-section robotic arm with movable rotary column is suitable for three-bench ring excavation with reserved core soil, while shotcreting can be achieved with no dead corner.

3. Sound maneuverability

Taking wheel loader as chassis, the unit has advantages of excellent performance, sound flexibility, high trafficability and easy maintenance.

4. Wireless remote control system

Working environment can be improved by using wireless remote control system.

5. International famous original fittings

6. Motor-diesel bi- power system

This power system has characteristics of good adaptability and rapid switching between motor and diesel under instructions.

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