SD8 Shank 203mm Down The Hole DTH Drill Bits for Stone Drilling

• Certification: ISO 9001:2000
• 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.: MDSD8-203
• Manufacturing Process: Forging
• Material: Carbon Steel
• Model: Mdsd8-203
• Bit Dia: 203mm
• No. Air Holes: 2PCS
• Weight: 37kg
• Transport Package: Wooden Case
• Trademark: MING
• Origin: China
• HS Code: 8207199000
• Production Capacity: 20000PCS/Year
• Package Size: 28.00cm * 22.00cm * 22.00cm
• Package Gross Weight: 40.000kg

Product Description

SD8 Shank 203mm Down The Hole DTH Drill Bits for Stone Drilling

Product Description

KINGDRILLING down the hole(DTH) tools manufacturer has a full range of DTH drill bits with SD 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: SD4, SD5, SD6, SD8.
DTH hammer bits hole diameter: 3'', 4'', 5'', 6'', 8''(85mm-305mm).
 
Features of High Air Pressure Drill Bits

1. Tungsten Carbide Inserts: High air pressure drill bits are often equipped with tungsten carbide inserts, known for their exceptional hardness and wear resistance. These inserts facilitate effective cutting and drilling in tough rock formations.

2. Optimized Flute Design: The flute design of high air pressure drill bits is carefully engineered to enhance chip evacuation and prevent bit jamming during drilling. This feature ensures continuous and efficient drilling performance.

3. High-Quality Steel Body: The body of these drill bits is typically constructed from high-quality steel, providing strength and durability to withstand the rigors of demanding drilling conditions. This robust construction ensures longevity and reliability in operation.

4. Variable Nozzle Configurations: Some high air pressure drill bits feature variable nozzle configurations that allow for controlled air flow and pressure adjustments. This feature enables operators to optimize drilling performance based on specific geological conditions.

5. Compatibility with DTH Hammers: High air pressure drill bits are designed to be compatible with Down-The-Hole (DTH) hammers, which are commonly used in high-pressure drilling applications. This compatibility ensures seamless integration and efficient drilling operations.

6. Multiple Cutting Structures: These drill bits may incorporate multiple cutting structures, such as chisel, conical, or ballistic shapes, to suit different rock types and drilling requirements. The variety of cutting structures enhances versatility and performance in various drilling scenarios.

 

Technical date

 

4 inch high air pressure DTH bits
MDSD4-105	105	6*Φ14	5*Φ13	2	9.0
MDSD4-110	110	7*Φ14	6*Φ13	2	9.5
MDSD4-115	115	7*Φ14	6*Φ13	2	9.8
MDSD4-120	120	8*Φ14	7*Φ13	2	11.5
MDSD4-127	127	8*Φ14	7*Φ13	2	12.3
5 inch high air pressure DTH bits
MDSD5-135	135	7*Φ16	6*Φ14	2	15.5
MDSD5-140	140	7*Φ18	7*Φ14	2	16.0
MDSD5-146	146	8*Φ18	7*Φ14	2	16.5
MDSD5-152	152	8*Φ18	8*Φ14	2	17.0
MDSD5-165	165	8*Φ18	8*Φ16	2	18.0
6 inch high air pressure DTH bits
MDSD6-152	152	8*Φ18	7*Φ16	2	26.0
MDSD6-165	165	8*Φ18	8*Φ16	2	27.0
MDSD6-171	171	8*Φ18	8*Φ16	2	29.0
MDSD6-190	190	9*Φ18	9*Φ16	3	32.0
MDSD6-203	203	9*Φ18	11*Φ16	3	34.0
8 inch high air pressure DTH bits
MDSD8-203	203	10*Φ18	10*Φ16	2	37.0
MDSD8-216	216	10*Φ18	12*Φ16	2	48.0
MDSD8-241	241	12*Φ18	18*Φ16	2	63.0
MDSD8-254	254	12*Φ18	21*Φ16	3	70.0
MDSD8-305	305	12*Φ18	29*Φ16	4	94.0
10 inch high air pressure DTH bits
MDSD10-254	254	12*Φ18	20*Φ16	3	108.0
MDSD10-305	305	12*Φ18	36*Φ16	4	125.0
MDSD10-311	311	12*Φ18	36*Φ16	4	130.0
MDSD10-318	318	12*Φ18	38*Φ16	4	142.0
MDSD10-330	330	16*Φ18	42*Φ16	4	155.0
12 inch high air pressure DTH bits
MDSD12-305	305	12*Φ18	36*Φ16	4	156.0
MDSD12-311	311	12*Φ18	36*Φ16	4	168.0
MDSD12-330	330	16*Φ18	42*Φ16	4	180.0
MDSD12-356	356	16*Φ19	48*Φ16	4	191.0
MDSD12-381	381	16*Φ19	48*Φ18	4	200.0

 

Product Application

Geothermal well drilling, Water well drilling, Pipe roofing(umbrella arch drilling), Foundation work, Anchoring

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 steels materials.
2. Kingdrilling DTH tools are forged by advanced electron-hydraulic forging hammer.
3. Advanced heat-treatment equipment: multipurpose furnace heat treatment.
4. Completed moulding (tooling ) departments with many molds available.
5. Professional R&D team,completed quality system.
6. Strict Quality-Check Systems.

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.

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!


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