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ZRM SERIES

Fully hydraulic walking multi-spindle drilling rig is a mechanical, electrical and hydraulic integrated construction equipment developed to meet the needs of domestic SMW construction method. It is a drilling rig product developed by adopting international advanced technology (SMW construction method) and combining China's national conditions. The equipment can be matched with various specifications of SMW multi-axis drilling tools to realize the construction of deep foundation pits of high-rise buildings, subway stations, anti-seepage, underground retaining walls, waterproof retaining walls, and buried pipeline protection walls. It is also suitable for water conservancy The construction of the anti-seepage wall and soft soil foundation reinforcement of the project is the preferred equipment for the construction of underground pile foundations such as bridges, wharves, and underground continuous walls.

The electrical control of the ZRM220/85-3 full hydraulic walking multi-axis drilling rig adopts a variety of advanced technologies. The power of the drilling rig is driven by electric power. The main and auxiliary winches are driven by hydraulic pressure. It is equipped with a separately controlled air machine. The main motor of the power head adopts a frequency converter. Start/stop/run control, the main oil pump motor adopts online soft starter start/stop/run control; each parameter control of the pile driver adopts programmable logic controller (PLC), and the operation adopts a combination of buttons and switches and touch screen. The safety warning light for drilling rig movement will give out audible and visual alarms when the rig moves piles to warn the surrounding personnel to pay attention to the displacement of the rig; install intelligent lighting control system and air-conditioning to ensure good sight of the rig during night construction and comfortable work in hot weather.

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technical parameter

NameZRM220/85-3
Total length of column /m39-42
Diameter of column cylinder /mmФ920
Center distance of column guide rail /mm600*Ф101.6
Column angle adjustment range (left and right) /°±1.5
Stroke of diagonal support cylinder /mm2800
Column fine-tuning cylinder stroke /mm400
Maximum column length /m42
Maximum pulling force at maximum column length /kN706
Hydraulic winch (hanging drilling machine)Single rope pull /kN120
Rope speed/m/min0-18
Wire rope diameter /mФ21.5
Rope capacity /m550
Hydraulic winch (lifting, lifting drill pipe)Single rope pull /kN68
Rope speed /m/min0-18
Wire rope diameter /mФ20
Rope capacity /m210
Platform rotation angle (each time) /°±10
Lateral movement of pile frameSpeed /m/min<1.15
Stride /mm3100
Longitudinal movement of pile frameSpeed /m/min<1.15
Stride /mm800
Pile frame jackingSpeed /m/min<0.6
Stride /mm450~-450
Track gaugeWhen working /mm9100
When shifting /mm4800
WheelbaseWhen working /mm4800
When shifting /mm5000
Horizontal trackLength /mm9500
Width /mm1209
Longitudinal shoesLength /mm6900
Width /mm1706
Ground pressure /MPa≤0.1
Motor power /kW55
Hydraulic system pressure /MPa20-25
Main machine weight (excluding drilling tools) /t140
Connection mode of outrigger and platformPin rotation, cylinder expansion
Hydraulic system operation modeElectrical control

Engineering case