Belong to Tunnel Boring Machine

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XTR 320 Boom-type Tunneling Boring Machine has advanced configuration, good stability, safe and reliable. The machine use of the automatic centralized lubrication and adjustable suspension seat to highlight the humanization design.

Electrical control system
Electrical control system can control the start and stop of every electromotor. It provides control signal and has the function of low voltage creepage protection. It also has the function of oil level and temperature detection, electromotor protection, showing the running state and failure message of electromotor.

Hydraulic system
The hydraulic system has the function of constant power, pressure cut off and load sensing. The system adopts bypass-valve technology to increase service life of components. Key components of hydraulic system are international famous brands.

Spray system
Adopting 3-ring water dust suppression containing inner and external spray so that ifs effective to cool and suppress dust.

Cutting mechanism
Cutting section constitutes by cutting head, cutting arm, cutting reducer, electromotor box and cutting electromotor. Optimal design by simulation technology is used in cutting head which shape is cone with small diameter. The pick comes from Kennan matt USA. Reasonable arrangement brings powerful tunneling ability.

First conveyor
Twin sticks follow-up rollers make the front chute and back chute connect smoothly. Hydraulic motor drive chain wheel directly to transport materials. Tightener adopt cylinder to adjust the tightness of scraper chain.

Walking mechanism
Large displacement motor and walking reducer are imported with high torque and strong grade ability . Walking mode adopts rollers-rolling to improve walking ability.

Lubrication system
Lubrication system is centralization so that regular lubrication will be convenient and reliable.

Technical Parameters:

Item Unit Parameter
Weight(with the second conveyor) t 120
Dimension Length mm 13000
Width Spading Device mm 3800
Body mm 3000
Height Highest Point for Cutting Head mm 2700
Machine Body mm 2195
Undercut Max mm 280
Ground Clearance mm 270
Orientation Cutting cross section Height mm 5700
Width mm 7100
Area 39.9
Height of gantry mm 400
Max and economic cutting hardness MPa ≤130/100
Walking Speed m/min 0~6.3/10
Total Installed Power kW 625
Max Cutting Power kW 320
Power of Pump Station Motor kW 230
Supply Voltage V AC1140/660/380
Frequency of power supply Hz 50
Rotating Speed of Cutting Head r/min 31
Track Width mm 2930
Tension Type MPa Hydraulic Cylinder Tension
Spray Water Pressure MPa External≥1.5