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R25 Cross bit

Our tapered cross bit was from high quality cemented carbide, which connected with tapered drill rod well for air leg or hand-held rock drill machine for drilling holes or breaking stones on road repairing, trenching project, marble and granite quarries, stone projects, tunnel, coal mining, water conservancy, etc.

The features:

• Raw material: alloy steel and big size of tungsten carbide.

• Taper angle: 7 °/11°/12°

• Diameter: 32mm-50mm

• Socket inside diameter: 22/23/25mm

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Product Details

An R25 Cross Bit refers to a specific type of rock drill bit designed for percussive drilling methods, particularly in mining and construction applications. Let's break down the key features and information about an R25 Cross Bit:

Thread Type and Size:

The "R25" designation indicates a specific thread type used in the drilling industry. R25 refers to the thread size and configuration used for connecting the drill bit to the drill string.

Cross Bit Design:

The term "Cross Bit" implies that the cutting structure on the bit resembles a cross. Cross bits typically have multiple carbide inserts arranged in a cross-like pattern on the bit's face. This design allows for efficient drilling in various rock formations.

Product	Button Bits
Other Names	Button drill bit,Thread button bit,Thread drill bit,Rock drill bit,Top Hammer drill bit,Drill bit,Rock bit,Hard rock dilling tools,Rock dill tool,Rock tools,Top Hammer drilling tools,Mining drill bit
Material	23CrNi3Mo
Application	Tunnelling, Mining, Quarrying, Ore Mining,Blasting and Infrastructure Construction,Facedrilling and Bolting, Bench Drilling, Production drilling, Long hole drilling, Drifting.
Thread	R25, R28, R32, R35, R38, T38, T45, T51, ST58, ST68, GT60, SR28, SR35...
Bit Type	Thread Button Bit,Retrac Button Bit,Reaming Button Bit，Cross Bit，Chisel Bit
Skirt Design	Standard skirt, Retrac skirt, Straightrac skirt, Heavy duty skirt
Face Design	Flat face, Drop center face, Convex face, Reaming type, Cross type
Button Shape	Spherical buttons, Ballistic buttons, Conical buttons, Composite buttons
Head Diameter	28mm~152mm
Custom Design	Size,Color

Cross bit	Diameter		No×button diameter			Flushing hole		Weight approx kg	TIANYUE P/N
Cross bit	mm	inch	Front	Gauge	Angle	Front	Side	Weight approx kg	TIANYUE P/N
	33	1 19/64	14*8		-	1	2	0.4	1221-33R25-14/8-42-23
	35	1 3/8	14*8		-	1	2	0.5	1221-35R25-14/8-42-23
	38	1 1/2	14*8		-	1	4	0.6	1221-38R25-14/8-42-23
	41	1 5/8	14*8		-	1	4	0.7	1221-41R25-14/8-42-23
	43	1 11/16	14*8		-	1	4	0.7	1221-43R25-14/8-42-23
	45	1 3/4	14*8		-	1	2	0.8	1221-45R25-14/8-42-23
	51	2	14*8		-	1	4	1.1	1221-51R25-14/8-42-23

Face Design	Application
	Flat face button drill bits are suitable for all rock conditions, especially for the rock with higher hardness and higher abrasiveness. Such as granite and basalt
	Convex Face button bits are designed for fast penetration rates in softer rock.
	Drop center button drill bits are mainly suitable for the rock with low hardness, low abrasiveness, and good integrity. The bits can drill straighter holes.
	Normal Skirt For drilling in very hard and abrasive rock formations.
	Retract Skirt For drilling in loose,broken or fissured rock where it is difficult to retract the drill string due to the hole collapse.

Actual pictures of drill bits

Threaded Drill Bits Retrac Button Bits Reaming Drill Bits Cross Bit Chisel Bit

Cross Bit R25

Bit process flow

About US

Cross Bit R25

Packing

Applications:

R25 Cross Bits are commonly used in percussive drilling methods like top hammer drilling. They are suitable for drilling in medium to hard rock formations and are often utilized in mining, quarrying, and construction projects.

Material Composition:

R25 Cross Bits are typically made of high-strength steel to withstand the mechanical forces and vibrations associated with drilling.
Carbide inserts are strategically placed on the bit's face to provide hardness and wear resistance for effective rock penetration.

Drilling Method:

R25 Cross Bits are used with top hammer drills, where the drill string is impacted from above. This impact transfers energy to the bit, allowing it to crush and break the rock efficiently.

Thread Retention Mechanism:

The R25 thread design ensures a secure connection to the drill string, providing stability and reliability during drilling operations.

Variations:

R25 Cross Bits may come in various sizes and designs to accommodate different drilling requirements and rock types.

When using R25 Cross Bits, it's essential to follow the manufacturer's guidelines for proper use, maintenance, and replacement intervals. These bits play a crucial role in the success of drilling operations by providing efficient rock penetration and contributing to overall drilling performance.

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