HDL-308 is mainly for complex formation. The top drifter has high power-vibration, it is able to drill in hard rock without air compressor or DTH hammer.

HDL-308 is mainly for complex formation. The top drifter has high power-vibration, it is able to drill in hard rock without air compressor or DTH hammer.

Specification

  If you need more detail, pls kindly send email to us

Specifications	HDL-308
Hole diameter(mm)	φ100~φ300
Hole depth(m)	150~180
Hole angle(°)	-30~105
Rod diameter(mm)	Φ73,Φ89,Φ102,Φ114,Φ146,Φ168,Φ194,Φ219
Gripper diameter(mm)	Φ73~Φ300

Product Show

 

1. Top Drive Drilling Head-suitable for all kinds of soil condition
HDL-300 drilling rig rotary head HD-250;HDL-308 drilling rig rotary head HD-100X and HQ350



2. Fitted with imported hydraulic system--more stable system.



3. Swiveling console-more convenient for operation, more flexible and safer. (HDL-300 only)



4. Omnidirectional variable angle mechanism-more flexible, suit for many kinds of projects.



5. Vertical big turn plate- -more convenient for tunnel shied construction.



6. 300mm opening diameter clamp- suitable for big hole drilling construction.



7. Remote control- more safer.
 

 

1. Lifting arm swings in angle of left and right



2. Lifting arm swings in angle of up and down(HDL-308 has no 20 function)



3. Vertical turntable in angle of left and right



4. Mast in angle of left and right



5. Lifting tower swings in angle of up and down



6. Sliding stroke is in up and down direction(HDL-300 only)
 

 

Feature&Technology

1. With large impact energy in the top drive drilling head, that can achieve impacting drilling without using DTH hammer and air compressor, has higher working efficiency and better result.
2. With omnidirectional, multi-angle adjustment, which can meet many kinds of drilling angle requirement, more convenient for adjustment.
3. The impact energy transmit on drilling tools from inside to outside, which reduce drill sticking, hole collapsing, drill bit being buried or other incidents, and make the construction safer and with lower cost.
4. With large torque, high rotary speed, large impact energy, that makes this machine able to applied in wider soil layers, especially in sandy gravel layer, crushed rock layer, stone soil, sandy layer, and other easily collapsing layer that need impact drilling. It has high efficiency of drilling speed and high quality of hole. When the water content is too high in the layer, in this case, the DTH hammer is not working, and the technology this machine process becomes the only choice.
5. With movable console, which is easy to operate and convenient for operators to view the drilling hole.
6. This machine is mainly applied in: foundation supporting, slope supporting, micro piling drilling, tunnel shied, and many kinds of hole guiding construction, and other engineering.

Wuxi Amman Construction Machinery Co., Ltd