R38 Tungsten Carbide Drill Bit with Ballistic Button for Mining

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Quick Details

Model Number:	B964-R38-B to B1389-R38-B-2
Type:	H-thread Button Bit	Material:	Tungsten Carbide	Use:	Coal Mining

Packaging & Delivery

Packaging Detail:	Carton or Wooden Box
Delivery Detail:	20-25

Specifications

High grade tungsten carbide inserts
Bit bodies manufactured from high grade steel and processed using state-of-the-art CN

Product Description

R38 Tungsten Carbide Drill Bit with Ballistic Button for Mining

Description

This type of bit is well known for its wear resistance and high speed drilling on soft to medium-hard rock formations (between 70 Mpa to 180 Mpa compressive strength). Featuring ballistic tungsten carbide inserts that is known to have high penetration rate, but has weak configuration against carbide fracture.

• Widely used drifting and tunneling
• Bit face design is ideal for medium-hard to hard abrasive rock

Color: Green or Based on Customer requirements

Material: Tungsten carbide and high strength alloy steel

Processing: CNC milling and proprietary heat treatment process

Type: R38 Button Bit Ballistic Buttons

Applications

• Underground mining
• Tunneling

Competitive Advantage

• High grade tungsten carbide inserts
• Bit bodies manufactured from high grade steel and processed using state-of-the-art CNC machinery and heat treatment

Part Number	Product Code and Brief Description	Bit Diameter (mm)	Bit Diameter (inch)	Front Buttons (No. x mm)	Gauge Buttons (No. x mm)	Angle	Front Flushing Holes	Side Flushing Holes	Weight (kg)
4148300657	B964-R38-B, R38 Button Bit, Ballistic Buttons	64	2 1/2	3x11	6x12	35°	3	-	1.8
4148300658	B1270-R38-B, R38 Button Bit, Ballistic Buttons	70	2 3/4	4x11	8x11	40°	2	-	1.9
4148300659	B1370-R38-B, R38 Button Bit, Ballistic Buttons	70	2 3/4	4x10, 1x10	8x11	30°	4	-	1.9
4148300660	B1276-R38-B, R38 Button Bit, Ballistic Buttons	76	3	4x11	8x11	40°	2	-	2.4
4148300661	B1076-R38-B, R38 Button Bit, Ballistic Buttons	76	3	3x11, 1x11	6x12	35°	3	1	2.6
4148300662	B1376-R38-B, R38 Button Bit, Ballistic Buttons	76	3	4x11, 1x11	8x12	35°	4	-	2.6
4148300663	B1389-R38-B-1, R38 Button Bit, Ballistic Buttons	89	3 1/2	5x12	8x12	35°	2	-	3.3
4148300664	B1389-R38-B-2, R38 Button Bit, Ballistic Buttons	89	3 1/2	4x13, 1x13	8x13	35°	4	-	3.3

Q: Why does the surface of stainless steel casting mirror mirror ripple?: Because the grinding machine is layer by layer. And the material inside the casting is not completely uniform.

Q: our factory now produces steel castings in the use of polishing directly after spraying processing, but the powder sprayed 15But the spray powder touched off what is the reason we are not very strict requirements not only need to peel off bubbles can also, because our products are steel castings so we use steam hole sludge put on. Do not know if this spray treatment has no effect to thank friends with us!: Cast iron has not been done, if it is iron, then in the spray before going through strict pretreatment, the surface can not have a little oil dust

Q: Domestic large steel castings factory which is better, recommend!: Do the casting manufacturer of large steel castings, Hunan Jinsha heavy industry science and technology limited company, heard that their professional only more than 1 tons of steel castings, anyway, 150T just big, the company won a lot of foundry industry patents should be good. At least spend money on research and development, then the quality should be all right.

Q: How do casting parts remove stress?: Annealing treatment, according to different casting annealing treatment, eliminate thermal stress, if need to restore hardness or increase hardness, and then quenching treatment

Q: Would you please tell me how to use casting parts for a year?The cast of an aircraft wing needs to be put aside for a year before it breaks;Does anyone know why?: There are various casting stresses after casting, which can be divided into two kinds: thermal stress and shrinkage stress. In a long time placed in the atmosphere, called aging treatment.Aging treatment is an effective measure to eliminate casting stress. Aging is divided into natural aging, thermal aging and resonance aging.1, the so-called natural aging, the casting is placed in the open field for more than half a year, so that the internal stress relief.

Q: Where is the precision casting factory?: The National Precision Casting Factory is generally distributed in Shandong, Ji'nan, Jiangsu, Wuxi, Changzhou, Zhejiang, Guangdong, Panyu, Dongguan.The above are only the main distribution, many of Shandong are made supercharger, and Guangdong to jewelry industry based.

Q: When there is no flaw detection for large casting parts, is there any crack inside?: According to the industry standards, within the scope of the standard requirements to determine whether the product is qualified

Q: Why should pig iron be used in casting?: 1, in the absence of special requirements, the most important thing is that the price is cheap.2, pig iron castings quenching process requirements are not high. You can do it by hand.3, pig iron casting hardness is very large, can meet many requirements.4, pig iron castings, high temperature resistance is relatively strong. Like stoves are pig iron castings.5, pig iron casting plasticity is very bad, but in some experiments, but use this weakness to improve the sensitivity of the experiment.Wait

Q: Which master knows how the casting tolerances for malleable iron, gray iron and ductile iron should be chosen? Hurry up, thank youCan you provide a tolerance scale for castings, please?: Our country has a national standard for casting tolerance levels. This national standard applies to you in malleable iron, grey cast iron, and ductile iron.

Q: What reason is the bronze statue choking fire?: The casting process in boiling phenomenon, is the setting of the exhaust hole positioner position or number is not reasonable, the air cavity can not be discharged, overwhelmed by a material inlet, reflux, change mould, sincerely help you look forward to adopt,

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