42mm 7 Degree Quarrying Tapered Cross Bit

• Customization: Available
• Customized: Customized
• Standard: ISO
• Model NO.: 32-34-36-38-40-42-45mm
• Length: Stub-length
• Type: Center Drill Bit
• Material: Tungsten Carbide
• Usage: Metal Drilling
• Transport Package: Wooden Box
• Specification: 70mm
• Trademark: YIKUANG
• Origin: China
• HS Code: 8207191000
• Production Capacity: 10000

Product Description

42mm 7 Degree Quarrying Tapered Cross Bit
This price is a reference price, and the final price is subject to the official negotiation result of the buyer and the seller!

    The drill bit is the main tool of mining engineering impact drill, drilling and drilling machine parts is matched with the company, the product adopts the high quality alloy bit Zhuzhou hard alloy factory, the carcass quality 40Cr, 42CrMo and other materials Seiko production, to ensure the strength and toughness of drill bit. The company launched the conical connection hard alloy drill bit are straight and cross, three blade, ball gear and other four kinds of forms, many varieties and specifications
     According to the drilling machine model, rock properties, hardness, toughness, pressure (pressure) choose a bit hard alloy bit type and, in general, fissures of rock should choose a bit; cross bit, three edge type bit is widely applicable to all kinds of rock, especially in hard and super hard abrasive high the fissures in the more obvious advantages; button bits for except the high rock abrasiveness of rock.
The usage method and matters needing attention of buttton bit
1. Ensure a good match with the tapered drill rod (taper is consistent, the depth of the drill rod inserted into the drill hole must be more than 25mm, and the head of the drill rod should not be filled with the bottom of the drill hole, otherwise it is easy to cause the loss of the drill bit; Note: it is best to use the drill bit with the same tapered drill rod manufacturer to ensure that its taper is consistent and well coordinated.
2. the drilling machine should lower the air volume and reduce the damage to the bit caused by high stress on the cemented carbide sheet, and then use the normal air rate when the drill bit is fully drilled into the rock;
3. When the width of the platform is more than 3mm, it should be replaced or milled in time to avoid reducing the drilling speed, causing bit fragments, splits and reducing service life; When the taper of the bit appears, it is necessary to replace or repair the bit in time, otherwise, the bit will be worn seriously, the drilling speed will be reduced, and even the drill bit will be stuck. Use 46-60 silicon carbide grinding wheel when grinding, its line speed is not less than 18 m / s.
4. When using brazing bit, if it encounters foreign body such as steel bar, the drilling position should be adjusted to prevent the bit from being destroyed;
5. When rock drilling is easy to appear, one character bit should be replaced by cross bit or ball bit.
6. for the rock which causes serious wear of drill bit, slow drilling and serious debris, consideration should be given to replacing other alloy grade bit or using cross type bit and ball bit, and notify us in writing in time. In order to deal with in time.
How to choose the right carbide taper cross bit ?
1,What's the application of carbide taper cross bit  ? Quarry rock drilling ,Blast furnace opening  or others .
2,What's the material request of body ? 42Crmo,35crmo,45Crnimov etc ,also can as your request
3,What's request for carbide or show us  which layer will it drill ?
There are different grades carbide and different carbide size .
Show us the layer ,we will recommend the right items as your request .

Tapered rock drilling tools
Name of product		Diam (mm)		Tip size(mm)	Taper	Weight (Kg)	P/N
				H×W
Normal chisel bit		38		15 × 10	7	0.36	YQ38-722
				18 × 10	7	0.36	YQ38A-722
				14 × 9	7	0.36	YQ38C-722
				14 × 8	7	0.36	YQ38D-722
		40		15 × 10	7	0.38	YQ40-722
				18 ×10	7	0.38	YQ40A-722
				14 × 9	7	0.38	YQ40C-722
				14×8	7	0.38	YQ40D-722
		43		15 × 10	7	0.40	YQ43-722
				18 × 10	7	0.40	YQ43A-722
				14 × 9	7	0.40	YQ43C-722
Straight horseshoe bits		26		12 × 6	7	0.19	YQM26F-719
		28		12 × 8	7	0.20	YQM28E-719
		32		14 × 8	7	0.22	YQM32D-722
		34		14 × 8	7	0.27	YQM34D-722
		36		14 × 8	7	0.32	YQM36D-722
				15 ×10	7	0.33	YQM36-722
		38		15 × 10	7	0.38	YQM38-722
				18 ×10	7	0.38	YQM38A-722
		40		15 ×10	7	0.39	YQM40-722
				14 × 9	7	0.39	YQM40C-722
				18 × 10	7	0.39	YQM40A-722
		43		15 × 10	7	0.41	YQM43-722
Straight horseshoe bits(forged)		38		15 × 10	7	0.37	YMD38-722
				14 × 9	7	0.37	YMD38C-722
				18 × 10	7	0.37	YMD38A-722
		40		15 × 10	7	0.39	YMD40-722
				18 × 10	7	0.39	YMD40A-722
				14 × 9	7	0.39	YMD40C-722
				14 ×8	7	0.39	YMD40D-722
		43		15 ×10	7	0.41	YMD43-722
				14 × 9	7	0.41	YMD43C-722
				18 × 10	7	0.41	YMD43A-722
Straight horseshoe bits for soft rock formations	38			11 ×10	7	0.38	YRQ38-722
				13 × 9	7	0.38	YRQ38C-722
				14 × 9	7	0.38	YRQ38D-722
	40			11 ×10	7	0.40	YRQ40-722
				13 × 9	7	0.40	YRQ40C-722
				14 × 9	7	0.40	YRQ40D-722
	43			11 × 10	7	0.43	YRQ43-722
				13 × 9	7	0.43	YRQ43C-722
				14 × 9	7	0.43	YRQ43D-722
Chisel bits			20	20 ×12 ×6	4	0.10	YX20F-415
			32	32×14×8	6	0.25	YX32D-622
			34	34×14×8	6	0.30	YX34D-622
			36	36×14×8	6	0.35	YX36D-622
			38	38×15×10	6	0.36	YX38-622
				38×18×10	6	0.40	YX38A-622
			40	40×15×10	6	0.38	YX40-622
				40×18×10	6	0.40	YX40A-622
Cross bits			32	12 × 8	7	0.30	SQ32H-722
			34	12 × 8	7	0.35	SQ34H-722
			36	12 × 8	7	0.37	SQ36H-722
			38	12 × 8	7	0.39	SQ38H-722
			40	12 × 8	7	0.40	SQ40H-722
			42	14 × 8	7	0.41	SQ42G-722
			45	14 × 8	7	0.47	SQ45G-722
Name of product			Diam (mm)	Tip size(mm)	Taper	Weight (Kg)	P/N
				Gauge
Button bits			38	3×8	7	0.29	ZQ38B-722
			40	3×9	7	0.39	ZQ40B3-722
			43	3×10	7	0.41	ZQ43B3-722
Button bits			28	4×7	12	0.22	ZQ28S-1222
			32	4×8	12	0.27	ZQ32S-1222
				4×8	7	0.27	ZQ32S-722
			38	4×9	12	0.37	ZQ38S-1222
			40	4×10	12	0.40	ZQ40S-1222
Button bits			32	5×7	12	0.28	ZQ32C3-1222
			35	5×8	12	0.35	ZQ35C-1222
			38	5×8	12	0.36	ZQ38C-1222
			41	5×9	12	0.45	ZQ41C-1222

 

Alias: Carbide drill bits, air drill bits
Carbide drill bits are the main tools for impact rock drilling in mining engineering. There are a series of products such as conical connection hard alloy drill bits, one-word, cross, three-blade, ball-tooth-type drill bits, and drilling tools for drilling rigs. The drill bit body is made of precision forged alloy steel, and different alloy grades and product types are selected according to the rock conditions, which are suitable for various grades of rock.
Product parameters
product type
The slotted bit is used for rock drilling and crushing. It is often used with light internal combustion, electric, pneumatic and hydraulic [rock drills] and B22 drill pipe to drill rock holes with a diameter of less than 50mm in rocks such as coal mine tunnels. It is the main variety of drill bits used in small and medium-diameter rock hole drilling projects in the mining industry.
Model: 40 slotted drill, 42 slotted drill.
The inline drill bit is also called the inline drill bit, which is mainly named after a flat-shaped carbide tip is welded on the top of the drill bit. The body of the in-line drill bit is formed by hot extrusion of 50cr steel, which is made of cast steel. If the top cutter head is a hard wear-resistant alloy thread, there are those with taps or without. The ones without taps are directly stuck with the drill pipe. Together.
Slotted drill specifications: φ28 φ32 φ34 φ36 φ38 φ40 φ42 Among them, 40 models are mostly used.
The straight-line drill consists of a shank, which has a pointed tip, and the tip has two cutting inserts located on a main plane.
Slotted drill bit usage: It is suitable for light rock drills to drill rock holes with a diameter of less than 50mm, and is suitable for rock formations with low hardness. Widely used in coal, iron, gold, copper, lead-zinc and other mines, as well as in the construction of railways, highways, and water conservancy.
Slotted drill features:
☆ Using steel and alloy, it has high toughness and wear resistance, and high efficiency.
☆ The manufacturing process is simple, the use is convenient, the price is low, and the adaptability to the rock mass performance is strong.
☆ It is a drill that can alleviate the sudden change of the drilling state and stabilize the drilling operation in the drilling operation of rock seam, coal seam, concrete, etc. Even when large-grained chips are generated, the drilling efficiency will not be reduced.
The cross drill bit is designed in a cross shape, and there are four alloys named cross drill. The cross bit is mainly used for drilling blastholes, which can drill rock holes, coal holes, concrete holes, etc. Use with B22, B25 pneumatic drill pipe and Rock Drill. Used to mine hard rock formations of Platts hardness 8-16.
Cross drill specifications: Φ36, Φ38, Φ42, Φ45, Φ50, Φ60, Φ65
Cross bit usage: It is suitable for drilling complex rock formations such as cracks under the condition of high-power rock drills, and has strong radial wear resistance. Widely used in coal fields, tunnels, metallurgy, geology, water conservancy, construction, energy, chemical industry and mining, road construction, etc.
Cross Bit Features:
Using mature technology, steel and alloy, it has high toughness and wear resistance, high efficiency and low cost. Cross bits do not break during drilling. It is conducive to saving auxiliary man-hours, reducing the manual labor and engineering speed of workers.
It has strong adaptability to rock drilling conditions, and is almost not limited by rock drilling type and rock mass performance, especially in hard and hard and highly abrasive fractured rocks.
Column tooth bit, also known as ball tooth bit, combined with hydraulic rock drilling rig, is a supporting tool for modern rock drilling technology.
The most commonly used models of column teeth are [32 column teeth, 40 column teeth].
Taper Connection Bits Cylinder Bits 7°, 11°, 12°"
The advantages of the column tooth drill bit: long service life, accurate positioning, coarse cuttings, low dust, durable and no need for grinding, etc. Compared with the traditional chip drill bit, the drilling speed is fast, and the ball tooth drill bit is passivated and has a long service life. , its non-grinding life is about 5-6 times of the grinding life of the same diameter blade head, which is conducive to saving auxiliary man-hours, reducing manual labor and engineering speed of workers.
The hard part of the column tooth bit is on the upper column head, the material is wear-resistant alloy, and the lower shank is cast steel. The threaded buttons below have inner threaded buttons and some without threaded buttons. When ordering, the type of thread should be determined according to the thread condition of the customer's drill pipe.
Cylinder teeth are mainly divided into the following categories:
1. DTH cylindrical bit
DTH stud bit is a kind of bit used with DTH impactor. It is used for drilling operation through spline and impactor. It is widely used in open pit mining, quarry, hydropower engineering, and water well drilling Support of digging column, etc. It is divided into: low pressure DTH cylindrical bit, medium and high air pressure DTH cylindrical bit. The DTH cylindrical bit is used in conjunction with the DTH impactor, which has the advantages of straight drilling, fast speed, Features of deep drilling.
2. Taper coupling cylindrical drill bit
The taper connection column tooth bit is mainly used with the pneumatic rock drill and the taper rod. It is connected with the drill rod through the taper to carry out the drilling operation. excavation and other fields.
3. Threaded stud bit
Threaded connection column teeth are mainly used with hydraulic rock drills (or pneumatic rock drills) and hydraulic drill rods (pneumatic drill rods). ¢32-¢203mm.
Connection form: taper connection
Product Usage
Application field: It can be used in limestone, granite, marble; iron ore, gold mine and other rock drilling projects.
Selection of air drill bit: according to the rock drill model, performance, rock hardness, toughness, wind pressure (water pressure), select the drill bit carbide grade and drill bit model. Under normal circumstances, a straight-line drill bit should be selected for rocks that do not develop cracks. ;Cross-type drill bits and three-edged drill bits are widely used in various rocks, especially in hard and hard and highly abrasive fractured rocks. rock-like.
Product advantages
Maintenance Instructions:
1. Ensure that it is well matched with the tapered drill rod (consistent taper, the depth of the drill rod inserted into the taper hole of the drill bit must be greater than 25mm, and the head of the drill rod should not touch the bottom of the drill bit hole), otherwise it is easy to cause the loss of the drill bit; Note: It is better to use the drill bit product and the tapered drill rod used from the same manufacturer to ensure that the taper is consistent and has a good fit;
2. When opening the hole, the rock drill should reduce the air volume to reduce the damage to the drill bit caused by the local high stress of the cemented carbide sheet. When the drill bit is completely drilled into the rock, use the normal air volume;
3. When the platform width of the cutting edge of the drill bit is ≥3mm, it should be replaced or ground in time to avoid reducing the rock drilling speed, causing fragments and splintering of the drill bit and reducing the service life; when the drill bit has an inverted cone, it should be replaced in time or Grinding the drill bit, otherwise it will seriously wear the drill bit, reduce the rock drilling speed, or even get stuck;
4. If foreign objects such as steel bars are encountered when using the drill bit, the drilling position should be adjusted to prevent the drill bit from being damaged;
5. When the rock drilling is prone to sticking, the in-line drill bit should be replaced with a cross-shaped drill bit or a ball-toothed drill bit;
6. For the rock that causes serious wear of the in-line drill bit, slow drilling footage, and serious debris, consider replacing other alloy grade drill bits or use cross-type drill bits and ball-tooth drill bits, and notify our company in writing in time so that deal with in a timely manner.
FAQ:

Q: Are you a manufacturer or trading company?

A: We are a specialized manufacturer.

 

Q: What are your main products, and used for?

A: Our products include core barrel, casing, drill rod, drill rig and other drilling parts.They are used for mineral exploration, geological drilling,

 

Q: How about the delivery terms?

A: 1.Payment: T/T, L/C, Western Union, Paypal, 30% deposit in advance and rest before delivery

2. Min. order quantity: 1 piece.

3. Transportation: By sea, train.

 

Q: How about discount?

A: Price is based on products and order quantity.

 

Q: Do you accept sample order?

A: Yes sure, please contact us for details.

 

Q: How about your after-sales service?

A: As a manufacturer has 32 years of history we offer prompt technology support for all problems and questions. Besides, we accept goods return or replace for quality problem.

 

Q: Where is your factory located in?

A: Our factory is located in Linqing city, Shandong province, China.

 

Q: How does your company control the quality?

A: Quality first. In order to guarantee high quality for our products, our always make a serious inspection for all products and raw materials in strict procedure.

We have obtained certificate of ISO9001*Yikuang is professional production of drilling tools, if you want to know more about our products, please feel free to contact us.

Pls feel freely to contact us !!!