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Zoomlion ZR250A Rotary Drilling Rig

Permalink : http://product.cmsou.com/detail_MTY03---.html    Last Updated : 2011-09-23
Zoomlion ZR250A Rotary Drilling Rig

Zoomlion ZR250A Rotary Drilling Rig

  • Feature
  • Parameter
  • Components&Parts

1、Master Winch mounted on the lowest part of mast make observation of Rope running quite convenient.
2、Lincoln centralized lubricating system ,Main lubricating points auto regular maintenance.
3. CumminsQSL9 supercharged medium-cooled electronic Controlling Engine, together with Zoomlion-specific control system, makes engine work at lowest fuel consumption at every rotating speed range.
4、supercharged Hydraulic Oil Tank increase oil adsorbing pressure of hydraulic pump ,and enlarge the service life of hydraulic oil pump.
5. Load sensing and load-sensing hydraulic pressure system,which control precision does not varied with the changing of load.
6. Low-strike rotation startup; high precision; stable and reliable system
7. Optimum designed luffing mechanism provides more reliable and safer operation.
8.Three-section foldable mast with large arc bended formation by high strength steel ,bear features of high strength ,light and high rigidity。The unique mast rotate plate design can make working more smoothly and assure a long service life.
9. Locking Mechanism telescopic drill pipe with direct stress of 20ton,valid Drilling Depth of 56m, friction telescopic drill pipe with valid Drilling Depth of 70m.
10. Power head with heavy shock absorber can buffer striking force.
11. Smooth up-down speed of luffing mechanism and mast
12. The electrical control system is bus-mastering computer center control system
13. Secondary automatic idle speed system lead to automatic idle speed while not in working condition so as to energy saving and noise reduction.
15. Logic interlocking control prevent drivers from misoperating.
16. Zoomlion-patenting Drilling Depth Automatic Measurement
17. Auto-stop protection avoids damage on wire rope by excessive rope-lifting of the master Winch.
18. 10.4 inches Full-color touch screen with advanced man-machine interface can dynamic display elements operating condition.
19、It can be equipped with drilling tools of different specifications and functions to meet Construction Requirements under different geologic conditions, such as screw drilling tools, common drilling bucket, sand-collecting drilling bucket and drum type rock bit

Max Drilling Torque

kN.m

250

Max Drilling Diameter

mm

2500

Max Drilling Depth

Locking Mechanism

m

56

friction type

m

70

Drill Velocity

1/min

6~24

Engine Model

Cummins QSL9

Maximum Power

kW

252

rated engine speed

1/min

2000

Bending angle of mast

º

4.5

Lifting power of Master Winch(first level)

kN

200

Lifting speed of Master Winch(first level)

m/min

65

Lifting speed of assist Winch(first level)

kN

110

Stress

kN

200

Pulling power

kN

220

going board rotation speed

1/min

3.2

walking speed

km/h

2.26

track gauge

mm

2300~3600

length of crawler contact ground

mm

4675

width of soleplate

mm

800

Theoretical climbing ability

%

40

Width of device in working state

mm

4400

Height of device in working state

mm

23050

Width of device in transisting state

mm

3100

Height of device in transisting state

mm

3500

Gross weight

t

74.5

hydraulic motor

1. the supercharged, medium-cooled and electrically-controlled engine works normally over 4500m altitude.
2. the international fashionable luffing mechanism let the backstay parallel to, close with and keep away from the block;
3. the backstay with box design and three-segment folding can rise and decline automatically so that it has good intensity and stiffness;
4. the hydraulic pressure system with hydraulic precursor and proportional operation is controlled by Load sensing and load-sensing, and it has high efficiency, Energy Saving and high precision control.

man-machine engineering control panel

1. the ten-range engine-rotating speed can be controlled by automatic power, which can lead the closed-loop control of the rotating speed of the engine, hydraulic pressure system pressure and the displacement of major pump so that the engine will not be over loading;
2. Automatic Leveling System is controlled by backstay during the whole process of rising and declining, and carries out real-time monitoring to the Verticality of the backstay.

bus-mastering computer center control system
1.the ten-range engine-rotating speed can be controlled by automatic power, which can lead the closed-loop control of the rotating speed of the engine, hydraulic pressure system pressure and the displacement of major pump so that the engine will not be over loading;
2. Automatic Leveling System is controlled by backstay during the whole process of rising and declining, and carries out real-time monitoring to the Verticality of the backstay.
3.the operating platform of man-machine engineering, the dual loading with figure and picture, man-machine interface with Concurrent Integrated True Color Displaying;
4. Intellectualized Alarm System and intellectualized Fault Detection System .
bus-mastering computer center control system
The computer center control system is bus-mastering.
hydraulic motor

1. The supercharged, medium-cooled and electrically-controlled engine works normally over 4500m altitude.
2. the international fashionable luffing mechanism let the backstay parallel to, close with and keep away from the block;
3. the backstay with box design and three-segment folding can rise and decline automatically so that it has good intensity and stiffness;
4. The hydraulic pressure system with hydraulic precursor and proportional operation is controlled by Load sensing and load-sensing, and it has high efficiency, Energy Saving and high precision control.

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