8′ ′ -225mm DTH Drill Bits for Mining

• Customization: Available
• After-sales Service: Yes
• Warranty: Yes
• Model NO.: 8′′-225mm
• Color: You Wanted
• Application: Water Well Drilling or Mining
• Air Pressure: High Air Pressure
• Advatage: High Performance and Long Service Life
• Transport Package: Plywood Box
• Specification: 8′′ -225mm DTH Bits
• Trademark: SOLLROC
• Origin: Made in China
• HS Code: 82071300
• Production Capacity: 10000/Month

Product Description

Product Introduction
DTH Drill Bits are produced from premium quality alloy steel for increased durability and wear characteristics. Specific heat treatment standards and special "stress relief" processes ensure consistent performance. DTH hammer bits are designed for maximum performance and hole cleaning ability and high penetration rate. Sollroc can supply DTH hammers and bit from 2"-18" for shank type DHD, SD, QL, Mission, N, etc.
Sollroc drilling tools are fitted with proprietary cemented carbide buttons, which are designed to drill further and last longer. With a unique combination of strength, hardness and resilience, Sollroc bits can tackle even the most demanding applications. It has the advantage of high flatness, smooth hole wall, high rigid of drill rod and hammer, independent of high axial thrust, no limit of drilling depth, low cost of devices and easiness to maintain. At the drilling hole of dia.105mm-dia.254mm, a plenty of the DTH drilling tools are used.

Product Adavantages
1. Long life of bit: alloy steel material has a long service life, which is higher than similar products.
2. High drilling efficiency: the drill teeth are wear-resistant, so that the drill bit can always be sharp, thus greatly improving the entering speed of the teeth.
3.Simple and reasonable design, Low problem rate
4.Selected high quality special steels and carbide
5.Produced by CNC machines
6.Low air consumption, smooth drilling, Maximum impact power, High penetration rate

Specification

Bit diameter		Flushing holes No.*Button Dia. mm	No.*Button Dia. mm		Weight (kg)
mm	inch		Gauge Buttons	Front Buttons
200	7 7/8"	2*Ф30	10*Ф18	8*Ф18+6*Ф16	46
203	8''	2*Ф30	10*Ф18	8*Ф18+6*Ф16	47
216	8 1/2"	2*Ф30	10*Ф18	8*Ф18+6*Ф16	53
219	8 5/8"	2*Ф30	10*Ф18	8*Ф18+6*Ф16	54
222	8 3/4"	2*Ф30	10*Ф18	8*Ф18+6*Ф16	55
225	8 7/8"	2*Ф30	10*Ф18	8*Ф18+6*Ф16	56
229	9''	2*Ф30	10*Ф18	8*Ф18+7*Ф16	57
235	9 1/4''	2*Ф30	12*Ф18	20*Ф16	58
241	9 1/2''	2*Ф30	12*Ф18	20*Ф16	58
254	10''	2*Ф30	12*Ф19	8*Ф18+18*Ф16	61
270	10 5/8''	2*Ф30	12*Ф19	8*Ф18+19*Ф16	62
280	11''	3*Ф26	12*Ф19	9*Ф18+21*Ф16	67

Face shape selection
1. Drop Center Bit
For high penetration rates in soft to medium hard and fissured rock formations. Low to medium air pressures. Maximum hole deviation control.
2. Concave Face
The all-round application bit face specifically for medium hard and homogenerous rock formations. Good hole deviation control and good flushing capacity.
3. Flat Face Bit
This kind of face shape is suitable for hard to very hard and abrasive rock formations in applications with high air pressures. Good penetration rates an resistance to steel wash.
4. Double Gauge Face
This kind of face shape is suitable for fast penetration rates in medium to hard rock formations. Designed for high air pressures and good resistance to steel wash step gauge bit.
5. Convex Face
For high penetration rates in soft to medium-hard with low to medium air pressures. It is the most resistance to steel wash, and may reduce the load and wear on the gauge buttons, but poor hole deviation control.

About us
We are able to manufacture, export and supply our clients excellent quality DTH Hammers like DTH Hammer Bits and RC Hammer. These hammers are meticulously manufactured with utmost perfection by utilizing superior quality raw materials and efficient machinery. Sturdy in construction, the provided hammers are specifically designed to suit high pressure drilling rigs. Also, the offered DTH Hammers can be purchased from us in distinct technical specifications at industry leading rates.
Our variety of Down the Hole drill bits is manufactured using high quality materials to provide you with a fine balance between penetration capability and bit life. We offer a comprehensive range of standard and made to order drill bits on an extensive selection of shanks with a wide variety of head designs to suit every project.
Sollroc DTH bits are interchangeable with these famous bits with CIR, Mission, DHD, SD, QL, etc. series shank.

Delivery Time
Generally need 15-25 days

Transport Way
By air, By Sea or By Express

Detail photos