1. Drill model: MD30/MD-50/MD-80
The utility model relates to a drilling rig which belongs to a high torque and full hydraulic power head drill.
The slope of a hydropower station, railway or highway project, drilling grouting, can also be used to prevent or solve geological disasters, such as landslides, landslides, etc..
2. Drilling ability, wide application range, rapid drilling speed and high drilling efficiency, and strong ability of handling the accident.
3 rig structure independent design, fast and convenient installation and transportation.
4. The rig is suitable for various drilling methods such as carbide bit drilling, auger drilling, DTH hammer drilling, follow-up casing drilling, etc.
|Output rotary speed of power head||Forward: 20/40/56/111/167r/min|
|Stroke of power head||1700mm|
|Output torque of power head||2000N.m|
|Lifting force of power head||25KN|
|Feeding force of power head||17kN|
|Power||Electric motor: 18.5KW|
Pipe roof method is an advanced supporting structure for shallow underground excavation in underground structure engineering. Its essence is buried in arc arch lining implicit quasi excavation of the underground tunnel or structural engineering, pre drilled and thick wall steel pipe installation high inertia, temporary shoring, prevent soil collapse and surface subsidence, excavation and support to ensure the follow-up process safety operation.
Pipe roof support method is a newly developed technology for tunnel excavation in soft rock. Pipe roof method was first used as an auxiliary method of tunnel construction, through the loose belt, belt, soft ground breaking in soft rock tunnel, inflow of water, sand play an important role. Because the embedded piperoof roof and side wall support. To lay a solid foundation for the follow-up of the tunnel excavation, and the construction speed, high safety, short construction period. The construction method is considered to be the most effective and reasonable solution of roof collapse in tunnel construction.
DTH Hammer Drilling /DTH Drilling with the Casing
Special seamless steel tube
Purpose: Soft stratum, broken soft rock layer, goose, difficult hole formation
Tunnel engineering, railway tunnel, highway tunnel, subway tunnel, High speed road tunnel.
|Name||Steel grade||O.D||I.D||Tube boots||wall thickness||Steel mill||length||Thread|
|Overburden drilling system||R780||108mm||99mm||Supporting||4.5mm||Baosteel||1500mm||4.5mmLeft screw type|
|Overburden drilling system||R780||127mm||118mm||Supporting||4.5mm||Baosteel||1500mm||6mmLeft screw type|
|Overburden drilling system||R780||146mm||136mm||Supporting||5mm||Baosteel||1500mm||6mmLeft screw type|
|Overburden drilling system||R780||168mm||156mm||Supporting||6mm||Baosteel||1500mm||6mmLeft screw type|
Pipe shed construction process:
1: The arch arch arch steel installation in the guide tube
2: Tie arch steel mesh
3: Installation of arch bottom die
4: Arch steel banding
5: Arch template reinforcement and pump installation
6: After the removal of the drilling pipe arch shed hole
7: Hole of drill pipe roof
8: The arch pipe roof construction digging machine to send
9: Pipe roof grouting
10: The arch is completed
The information about dth drill bit you may like to know before order:
1. Methods of Payment:
T/T (Telegraphic Transfer) or Western Union or L/C at sight
2. Handling time for an order
Based on order quantity, normally it takes 20 days for production.
in 3 working days after receiving the advance payment
3. Shipping way
Sample order: we suggest Courier express like DHL/UPS/TNT/FEDEX or by air
Bulk order: we suggest by air or by sea.
4. Quality Control
We have our own experienced QC.
There will be strict inspection and testing for every order before shipping out.
5. After Services:
a. Our sales team will response for your question within 24 hours (Holidays Excluded)
b. Technical Support will be available in any time
6. Quality & Service:
A. There will be strict inspection and testing for every order before shipping out.
B. Our sales team and Technical Support will response for your question within 24 hours through skype: ROSCHEN.TOOL and WhatsApp/Wechat: +86-13764195009
C. Free replacement will provide once the failure confirmed caused or our product quality.