334mm DHD High Air Pressure Bit DTH Button Bits for Coal Mining

• Customization: Available
• Certification: ISO 9001:2000, SGS
• Standard: GB
• Model NO.: MDHD275-334
• Surface Treatment: Spray-Paint
• Manufacturing Process: Forging
• Material: Carbon Steel
• Model: Mdhd275-334
• Bit Dia: 334mm
• No. Air Holes: 3PCS
• Weight: 216kg
• Transport Package: Wooden Case
• Trademark: MING
• Origin: China
• HS Code: 8207199000
• Production Capacity: 20000PCS/Year

Product Description

334mm DHD High Air Pressure Bit DTH Button Bits for Coal Mining

Product Description

KINGDRILLING down the hole(DTH) tools manufacturer has a full range of DTH drill bits with DHD shanks type for a wide range of hole sizes, which are designed to match all conceivable applications for water well industries, stone quarrying, mining and construction.

Shank types: DHD340,DHD350, DHD360, DHD380.
DTH hammer bits hole diameter: 3'', 4'', 5'', 6'', 8'',10",12"(85mm-305mm).

Our DTH Drill Bit boasts a fast driving speed that will expedite your drilling process. Say goodbye to frustratingly slow drilling and experience the efficiency and productivity that you deserve. DTH Drill Bit is your go-to solution for high drilling quality, lightning-fast driving speed, outstanding working efficiency, and an impressively long service life. Experience the difference today and take your drilling projects to new heights.

 

Technical date

 

3 Inch High Air Pressure DTH bits
Model	Bit Dia.(mm)	NO. X Button Dia.		NO.Air    Holes(PCS)	Weight(KG)
		Gauge	Front
MDDHD3.5-85	85	6*Φ13	4*Φ12	2	4.5
MDDHD3.5-90	90	6*Φ14	4*Φ12	2	4.7
MDDHD3.5-95	95	6*Φ14	4*Φ13	2	4.9
MDDHD3.5-100	100	6*Φ14	5*Φ12	2	5.0
MDDHD3.5-105	105	6*Φ14	5*Φ13	2	5.5
4 inch high air pressure  DTH bits
MDDHD340-105	105	6*Φ14	5*Φ13	2	9.0
MDDHD340-110	110	7*Φ14	6*Φ13	2	9.5
MDDHD340-115	115	7*Φ14	6*Φ13	2	9.8
MDDHD340-120	120	8*Φ14	7*Φ13	2	11.5
MDDHD340-127	127	8*Φ14	7*Φ13	2	12.3
5 inch high air  pressure DTH bits
MDDHD350-135	135	7*Φ16	6*Φ14	2	15.5
MDDHD350-140	140	7*Φ18	7*Φ14	2	16.0
MDDHD350-146	146	8*Φ18	7*Φ14	2	16.5
MDDHD350-152	152	8*Φ18	8*Φ14	2	17.0
MDDHD350-165	165	8*Φ18	8*Φ16	2	18.0
6 inch high air  pressure DTH bits
MDDHD360-152	152	8*Φ18	7*Φ16	2	26.0
MDDHD360-165	165	8*Φ18	8*Φ16	2	27.0
MDDHD360-171	171	8*Φ18	8*Φ16	2	29.0
MDDHD360-190	190	9*Φ18	9*Φ16	3	32.0
MDDHD360-203	203	9*Φ18	11*Φ16	3	34.0
8 inch high air  pressure DTH bits
MDDHD380-203	203	10*Φ18	10*Φ16	2	37.0
MDDHD380-216	216	10*Φ18	12*Φ16	2	48.0
MDDHD380-241	241	12*Φ18	18*Φ16	2	63.0
MDDHD380-254	254	12*Φ18	21*Φ16	3	70.0
MDDHD380-305	305	12*Φ18	29*Φ16	4	94.0

Order Guide: Shank + Head Diameter + Face Design + Button Shape

We can design and manufacture the different diameter,holes number,carbide button shape and face shape according to the customers' requirement.

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.
2. Convex:  
Suitable for the formation of moderate hardness stratum, drilling efficiency is good, borehole perpendicularity is moderate.
3. 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 widely used in all kinds of drilling, such as open-pit mining, underground mining, quarrying, tunneling, benching and engineering construction.

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 25 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:

Act as a good adviser and assistant of clients enable them to get rich and generous returns on their investments .
1.Select equipment model;
2.Design and manufacture products according to client's special requirement ;
3.Train technical personnel for clients .

2.Services during the sale:

1.Pre-check and accept products ahead of delivery .
2. Help clients to draft solving plans .

3.After-sale services:

Provide considerate services to minimize clients' worries.
1.Complete After-sales service,professional engineers available to service machinery at home or oversea.
2. 24 hours technical support by e-mail.
3.Other essential technological service.

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.
 
8. Competitive price:
A:KINGDRILLING factory can supply you the lowest price due to direct sale to customers without distributor!

More products: