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88Ton Hdd Boring Machine

With the use of closed loop of the main rotation hydraulic system, DL880 crawler integrated horizontal directional drilling machine has better working efficiency, and it has 194Kw engine. Its forced air cooling system enables it to work reliably for a long time. Additionally, its impact structure and sound climbing capacity can make transfer and transportation of the equipment more convenient. High-speed operation system has multi-shift stepless speed regulation function, significantly increasing the operation efficiency. The rotation hydraulic system is of closed loop and the high-strength drill pipe holder is set on the outer side of the crossarm, featuring simplicity, reliability, easy assembly & dis-assembly of drill pipe and high efficiency. The top-end PALL filter can ensure cleanness of the hydraulic system and long service life of the equipment. 


Technical parameter:

Engine power

KW

194/2200


Main machine size

mm

7780x2300x2485

Max thrust force

KN

460

Weight

T

14.1

Max pullback force

KN

890

Dia.of drilling rod

mm

Φ89

Max torque

N.m

25000

Length of drilling rod

m

3

Max rotary speed

rpm

140

Max Dia.of pullback pipe

mm

φ150~φ1100

Max carriage speed

m/min

31

Max construction length

m

900

Max mud pump flow

L/min

600

Incidence Angle

·

1120

Max mud pressure

Mpa

10±0.5

Climbing angle

·

14

 

 

Stages of the HDD-machine works:


Stage 1 is a preparation step. At this stage it’s necessary to analyze the soil composition, existed underground utilities and other materials. Also at 1st stage is very important to prepare and sign all technical documents for the construction project.


Stage 2 is a pilot boring The pilot hole is drilled from the entry point to the exit point following a previously designed profile and alignment. The drilling tools and rig equipment selected for each job is largely determined based on the results of the geotechnical investigation and the size of the crossing (length and diameter). During the pilot hole drilling, a directional guidance system is used to navigate the pilot hole along its pre-designed profile


Stage 3 is reaming the hole. Hole enlargementIn small diameter crossings the pipeline may be directly installed in the pilot hole. However in most cases pilot hole enlarging, known as “pre-reaming,” will be necessary. Pre-reaming is required to provide a bore diameter large enough so that the pipeline can be installed in the drilled crossing. Based on the final desired diameter and soil conditions this process may include one or more stages.


Stage 4 is Pull back. Once the drilled hole has been enlarged to the required diameter and cleaned adequately, the pipeline is installed. It is final stage of drilling works. The pipeline is dragged into the built horizontal well (borehole). After completing of drilling works, as-built documentation is given to the customer. It is important to choose a suitable drilling rig for carrying out the drilling works of high quality


Our article “Selection of the HDD -machine” will help you to choose the appropriate HDD equipment.You can also contact our specialist by phone: 0086-18052086280 or send an email to: william@njdl.com 

 


DL880

1

Drill head φ89mm

1

Drill rod φ89*10*3000mm

100

Barrel reamer φ400mm

1

Barrel reamer φ500mm

1

Barrel reamer φ600mm

1

Barrel reamer φ700mm

1

Barrel reamer φ800mm

1

Barrel reamer φ900mm

1

Barrel reamer φ1000mm

1

Barrel reamer φ1100mm

1

Barrel reamer φ1200mm

1

Power divider/Swivel 60T

1

Protection joint/Sub saver

1

Male-female connector/Pull eye

1

Clamp slip

8


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ABOUT DILONG

Jiangsu Dilong Heavy Machinery Co., Ltd. is one of the earliest specialized private companies in no-dig industry (HDD) in China. We shall maintain our commitment of creative innovation, strong quality, timely training and consistent service as always, your visit and booking shall be a new start for our long term cooperation.
 

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CONTACT US

   No.19th, East Tuanshan Road, Lishui District, Nanjing City, China
 +8618052086280    
     +8618936869890     
  william@njdl.com 
      jack@njdl.com        

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