Separated Construction DTH Drill Rigs

After the appearance of Separated Construction DTH Hammer Drill Rigs design, the design makes the whole vehicle relatively simple in structure, with high cost performance, high requirements for on-site management, and unable to move quickly. At the same time, it is different from the whole vehicle power source, and needs to be additionally bridged with the air compressor driving rock drilling system; In addition, compared with integrated drilling rig, its energy consumption is relatively high.

 

Hole Diameter Range: Φ90-138 mm

 

 

ZEGX 420T-1 Separated Construction DTH Hammer Drill Rig from Zhejiang Zhigao Machinery Co., Ltd is a highly reliable and safe drilling rig for open-pit operations. Featuring advanced technology, the rig ensures maximum efficiency and enhanced performance for all drilling operations.

 

One of the key advantages of this separated DTH drilling rig is its high level of safety. Equipped with a variety of safety features that meet international standards, it ensures the safety of personnel and equipment during drilling.

 

In addition, the ZEGX 420T-1 is designed with comfort in mind. With its ergonomic design, it offers a comfortable and efficient working environment for operators, reducing fatigue and increasing productivity.

 

The drilling rig's high-quality components and advanced engineering contribute to its overall reliability. It boasts a durable and sturdy structure, able to withstand the toughest underground conditions.

 

Other key features of the ZEGX 420T-1 include its ability to drill deep holes with high accuracy, easily adjustable drilling angle and depth, and a user-friendly control system.

 

Overall, the ZEGX 420T-1 split-type underground drilling rig is an excellent choice for anyone looking for a high-quality machine that combines safety, comfort, and reliability for all underground drilling operations.

 

 

 

 

Usually used in various mines and rock excavation projects such as national defense, transportation, hydropower station and so on.

There are some shortcomings in the split drilling rig and the entire crawler drilling rig, that can not integrate such functions as high flexibility, small size, high personnel security into one device. So the drilling efficiency for gas extraction is lowered and the drilling rig has a poor adaptability under complex drilling field and mines. The split crawler drilling rig is a new type of drilling and construction equipment for gas extraction. Due to its split and crawler structure, this new-type rig owns small size, flexible underground mobility, and workers can stay away from the orifice and the host to realize control and operation of drilling. Combined with complex conditions of coal mine/rock occurrence and drilling field, and based on analysis and investigation of the structural features, the main function, the key technologies and the hydraulic systems of split crawler drilling rig, the split crawler rig series for different condition and construction environment were designed. The industrial test showed that the split crawler rig has moderate dimensions, high flexibility at underground, high comprehensive drilling efficiency, and wide adaptability. It has a good prospect in mines with complex conditions.

 

 

 

 

 

Engine manufacturer	Yuchai (China III)	Feed Force	20kN
Engine model	YC4DK100	Pull Up Force	45kN
Engine rated power	73.5 kW	Feed Type	Chain/ Cylinder
Hole Depth	30 m	Tramming Speed (Max.)	3km/h
Drill Pipe Sizes	Φ110-140 mm	Slope Climbing Ability	25°
DTH Hammer Size	4” /5”	Track Frame Oscillation	±10°
Rotation Speed	3,200 N.m	Total Weight	4,700kg/5,280kg
Working Pressure	0.7-2.5Mpa	Transportation Dimensions	5100*2324*2550mm
F.A.D	8-20 m 3 / min	Dry Dust Collector	Option

 

 

• Standard equipped with Yuchai 4 cylinder Diesel engine YC4DK80 or YC4DK100 Electric motor.
• All structural parts reinforced for various work conditions.
• The rotation unit driven by cycloid motor for higher torque and larger hole range.
• New enclosure design for better appearance and convenient for maintenance and service.
• Optional dry dust collector for dust free drilling, more environment friendly and energy saving.
• The oscillation function is added to the original 420 drilling rig. The climbing ability and maneuverability are improved to meet the needs of various working conditions on construction sites.

 

 

MOQ	1 SET
Payment term	T/T, L/C at sight
Port	Ningbo/Shanghai, China.

 

 

 

Q: Why is it difficult to start the drilling rig in winter?

A: It is not only determined by its own technical conditions, but also affected by the external temperature. It is more difficult to start at low temperature in winter, mainly due to the following reasons:

(1) In winter, the climate is cold, the ambient temperature is low, the oil viscosity increases, and the friction resistance of all moving parts increases, which reduces the starting speed and makes it difficult to start.

(2) The capacity of the storage battery decreases with the decrease of temperature, further reducing the starting speed.

(3) As the starting speed decreases, the leakage of compressed air increases, and the heat dissipation of cylinder wall increases, the temperature and pressure of the air at the end of compression is greatly reduced, which increases the delay period of diesel ignition, and even cannot burn in serious cases.

(4) The viscosity of diesel oil at low temperature increases, which reduces the injection speed. In addition, the swirl speed, temperature and pressure of air at the end of compression are relatively low, which makes the atomization quality of diesel oil injected into the cylinder poor. It is difficult to quickly form a good combustible gas with the air and ignite in time, or even cannot ignite, resulting in starting difficulties.

 

Q: What are the conditions for good starting performance of drilling rig?

A: (1) There shall be sufficient starting speed. High starting speed, less gas leakage in the cylinder, short time for compressed air to transfer heat to the cylinder wall, and less heat loss make the gas temperature and pressure at the end of compression increase. Generally, the required speed is 1_ 0_ 0_ r_/_ m_ i_ n_ above.

(2) The sealing of the cylinder is good. This can further reduce air leakage and ensure that the gas has sufficient combustion temperature and pressure at the end of compression. The compression pressure of the cylinder shall not be less than 8% of the standard value_ 0_%_。

(3) It is required that the fit clearance between the engine and the running parts is appropriate and well lubricated.

(4) The battery shall have sufficient starting capacity and the technical condition of starting circuit shall be normal.

(5) The starting oil quantity shall meet the requirements, the injection quality shall be good, and the injection advance angle shall meet the requirements.

(6) Use qualified fuel

 

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