140mm HRC Down The Hole Reverse Circulation DTH Drill Bits for Exploration

• Certification: ISO 9001:2000, SGS
• Standard: GB
• Surface Treatment: Spray-Paint
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: MDHRC-140
• Manufacturing Process: Forging
• Material: Carbon Steel
• Model No: Mdhrc-140
• Bit Dia.: 140mm
• No. Air Holes: 2PCS
• Weight: 18kg
• Transport Package: Wooden Case
• Trademark: MING
• Origin: China
• HS Code: 8207199000
• Production Capacity: 20000PCS/Year
• Package Size: 29.00cm * 15.00cm * 15.00cm
• Package Gross Weight: 20.000kg

Product Description

140mm HRC Down The Hole Reverse Circulation DTH Drill Bits for Exploration

Product Description

KINGDRILLING hammer bits are used with Down-the-hole hammers for drilling holes through a wide range of rocks types. In conjunction with DTH hammers, drill hammer bits are designed with a spline drive for rotating the bit in the ground. Drill bits are available in different sizes and different styles so they can drill a wide range of hole sizes. Our variety of Down the Hole (DTH) bits is manufactured using high quality materials to provide you with a fine balance between penetration capability and bit life.

Applications of DTH Drill Bits:

1. Mining: DTH drill bits are widely used in the mining industry for exploration, production drilling, and blasting operations. These bits are instrumental in creating blast holes for ore extraction and other mining activities.

2. Construction: In the construction sector, DTH drill bits are used for various applications such as foundation drilling, piling, anchoring, and tunneling. Their efficiency and precision make them ideal for demanding construction projects.

3. Water Well Drilling: DTH drill bits play a crucial role in water well drilling operations, where deep and efficient boreholes are required to access groundwater sources. These bits are capable of drilling through hard rock formations commonly encountered in well drilling projects.

4. Geotechnical Exploration: DTH drill bits are essential tools for geotechnical exploration and site investigation projects. These bits help geologists and engineers obtain valuable data about soil composition, rock layers, and subsurface conditions.

5. Oil and Gas Exploration: DTH drill bits are used in oil and gas exploration to create boreholes for well drilling and reservoir evaluation.

   

   

    

Technical Date

 

3 Inch Hight Air Pressure DTH bits
Model	Bit Dia.(mm)	NO. X Button Dia.		NO.Air Holes(PCS)	Weight(KG)
		Gauge	Front
MDHM30-85	85	6*Φ13	4*Φ12	2	4.5
MDHM30-90	90	6*Φ14	4*Φ12	2	4.7
MDHM30-95	95	6*Φ14	4*Φ13	2	4.9
MDHM30-100	100	6*Φ14	5*Φ12	2	5.0
MDHM30-105	105	6*Φ14	5*Φ13	2	5.5
4 inch high air pressure DTH bits
MDHM4-105	105	6*Φ14	5*Φ13	2	6.0
MDHM4-110	110	7*Φ14	6*Φ13	2	6.2
MDHM4-115	115	7*Φ14	6*Φ13	2	6.6
MDHM4-120	120	8*Φ14	7*Φ13	2	7.0
MDHM4-127	127	8*Φ14	7*Φ13	2	7.4
5 inch high air pressure DTH bits
MDHM5-135	135	7*Φ18	6*Φ14	2	12.5
MDHM5-140	140	7*Φ18	7*Φ14	2	13.5
MDHM5-146	146	7*Φ18	7*Φ14	2	14.0
MDHM5-152	152	8*Φ18	8*Φ14	2	14.4
MDHM5-165	165	8*Φ18	8*Φ16	2	15.0
6 inch high air pressure DTH bits120
MDHM6-152	152	8*Φ18	7*Φ16	2	22.0
MDHM6-165	165	8*Φ18	8*Φ16	2	23.0
MDHM6-171	171	8*Φ18	8*Φ16	2	24.0
MDHM6-190	190	9*Φ18	9*Φ16	3	25.0
MDHM6-203	203	9*Φ18	11*Φ16	3	28.0
8 inch high air pressure DTH bits
MDQL80-305	305	12*Φ18	29*Φ16	4	95.0
MDHM8-203	203	10*Φ18	10*Φ16	2	35.0
MDHM8-216	216	10*Φ18	12*Φ16	2	40.0
MDHM8-241	241	12*Φ18	18*Φ16	2	54.0
MDHM8-254	254	12*Φ18	21*Φ16	3	57.0
MDHM8-305	305	12*Φ18	29*Φ16	4	77.0
10 inch high air pressure DTH bits
MDHM100-254	254	12*Φ18	20*Φ16	3	90.0
MDHM100-305	305	12*Φ18	36*Φ16	4	102.0
MDHM100-311	311	12*Φ18	36*Φ16	4	104.0
MDHM100-318	318	12*Φ18	38*Φ16	4	106.0
MDHM100-330	330	14*Φ18	42*Φ16	4	112.0
12 inch high air pressure DTH bits
MDHM120-305	305	12*Φ18	36*Φ16	4	152.0
MDHM120-311	311	12*Φ18	36*Φ16	4	158.0
MDHM120-330	330	16*Φ18	42*Φ16	4	165.0
MDHM120-356	356	16*Φ19	48*Φ16	4	178.0
MDHM120-381	381	16*Φ19	48*Φ18	4	195.0
MDHM125-305	305	12*Φ18	36*Φ16	4	170.0
MDHM125-311	311	12*Φ18	36*Φ16	4	173.0
MDHM125-330	330	16*Φ18	42*Φ16	4	182.0
MDHM125-356	356	16*Φ19	48*Φ16	4	191.0
MDHM125-381	381	16*Φ19	48*Φ18	4	200.0

How to choose the suitable head face of the DTH drill bit?

1.  Concave:

Suitable for all kinds of formation, especially for deep well drilling, perpendicularity of the hole is wonderful.

1.  Convex: 

Suitable for the formation of moderate hardness stratum, drilling efficiency is good, borehole perpendicularity is moderate.

1.  Flat:        

Suitable for special hard formation stratum, especially for fracture, crack spacing and complex formation drilling effect is very good, has the good perpendicularity of the borehole.
 

Product Application

It is suitable for drilling water wells, geothermal wells, short mircopiles, medium mini-type grouting hole of building, dam and harbor project.

 

Company Profile

Wuhan Kingdrilling Diamond CO., LTD, one of the most professional private manufacturer specialized in researching and producing Overburden casing drilling system, DTH hammer, DTH drill bits, Core bits, Thread bits, Taper bits, Shank adapter, Drilling rods, Coal mining picks and related rock drilling tools.

Relying on the university resources and talent advantages in High-tech region, combining with multiple laboratories in universities, we have more power focused on developing the newest products system.

Our DTH drilling tools are produced with advanced technology from Britain. The company is equipped with advanced production facilities including electron-hydraulic forging hammer, multipurpose furnace heat treatment production line, high performance CNC machines, from raw materials prepared, forging, heat treatment, mechanical processing, a completed manufacturing system is finished in the factory. Strict quality control standards make sure stable quality. 

Whatever in construction, engineering, piling, water well drilling, tunneling, mining, quarrying or horizontal drilling industry, KINGDRILLING will do the best to satisfy your demands. "Kingdrilling, Keep On Striving", we'll always be in this line to serve our customers the most reliable products and the best support.

 

Our Advantages

1. High quality: We are the partners with a lot of big factories in China. We can provide the best quality products to you. 
2. Competitive price: Competitive price because of direct factory price. 
3. Fast delivery time: It usually takes 20 days for production.only 3 or 5 days if we have stock of your request size.
4. Best quality control: We have our own experienced QC team,there will be strict inspection and testing for each order before shipping out.
5. Problems solve ability: This ability comes from rich experiences of drill bits industry and reliable sales.
6. OEM,ODM service: Your own request about product will be served well.
7. Best after service: We will go to your place to check and solve the problems if you need.

After Sales Service

1.Pre-sale service:
If demand, assist clients to get rich and generous returns on their investments.Select DTH tools model.Design and manufacture down the hole products according to client's requirement.

2.Services during the sale:
Assist clients to draft solving plans.
Pre-check and accept Rock drill products ahead of delivery.

3.After-sale services:
Our sales team will response for your question within 24 hours (Holidays Excluded)
Technical Support will be available in any time.
Free replacement can be provided once the failure confirmed caused by our product quality.

Packaging & Shipping

Packed by Carton or Wooden cases.

Delivery:

1. Goods in stock can be delivered within 5 days.
2. DTH Bits production time is about 15 days.
3. DTH Hammer product time is about 30 days.

Transprotation: By air, By Express or By sea / By train , according to your requests.

FAQ

1. How to order the products?

A: Please send the inquiry with detail item description or with Model number.
 
2. How about the common packing?
A: If there is no special packing demand, we will take it as our normal packing. First in small carton, and then put in the bigger carton together to make sure goods completed.
 
3. Can I expect a quality products?
A: Yes. mature production technology ensuring the quality satisfy international request.
 
4. How to check the product are the exact one you want?
A: If possible, please attach one reference picture to avoid any misunderstanding or any links from our website for a better understanding.
 
5. How to control quality?
A: We have our own experienced QC team,there will be strict inspection and testing for each order before shipping out.
 
6. Fast delivery time
A: Usually it takes 25 days for production.only 3 or 5 days if we have stock of your request size.
 
7. Shipping way
A: Sample order: we suggest Courier express delivery such as DHL/UPS/TNT/FEDEX or by air
Bulk order: by air or by sea we suggest.

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