10" 12" SD10 SD12 DTH Hammer and Bit for Water Well Drilling

• Customization: Available
• Customized: Non-Customized
• Standard: API
• Model NO.: SD10 SD12
• Length: 1860mm
• Type: Center Drill Bit
• Material: Tungsten Carbide
• Usage: Well Drilling, Masonry Drilling
• Working Pressure: 1.0-2.5MPa
• Impact Rate at 1.7MPa: 16Hz
• Rotation Speed: 15-25 R/Min
• Air Consumption: 56m3/Min at 1.8MPa
• Connection Thread: API 6 5/8" Reg
• Hole Diameter: 305-445mm
• Transport Package: Plywood Box
• Specification: 10" 12"
• Trademark: Bestlink
• Origin: China
• HS Code: 82071990
• Production Capacity: 10000PCS Per Month
• Package Size: 150.00cm * 50.00cm * 50.00cm
• Package Gross Weight: 105.000kg

Product Description

DTH hammer 

With professional manufacturing experience in DTH hammer production, our factory can supply you with high pressure and medium to low pressure DTH hammers. It strictly matches with API standard and other Chinese industry standards.It is durable for being produced with advanced craftwork and good material. 

It also has the following advantages: 

1. Deliver maximum energy to drilling bit, fast drilling speed and low air consumption due to the special inner structure of HD series DTH hammer designed according to newest rock drilling theory.

2. Smooth performance and long service life of HD series DTH hammer due to high quality alloy steel materials and advanced processing technology adapted.

3. Low problem rate and easy to maintenance due to simple, reliable and easy assemble and disassemble inner structure of hammer.

4. Easy to depart bit from hammer due to multi-head thread connecting chuck and cylinder of hammer.

5. Interchangeable with DTH bit and drill pipe 

 

DTH Bit 

DTH bit is our main product. After mang years search, we have rich experience in development and manufacturing high quality products, which adopted high-quality raw materials, advanced technology and passed through strictly inspection.  

1.high and low air pressure down-the-hole drill bits 
2.Low air pressure holeDia.:65-220mm  

3.High air pressure hole Dia.:85-305mm   

4.Face type:drop center/concave/convex/double gauge/flat   

5.Our DTH Bit can be suitable for many types of DTH Hammer, such as XL, Mission, COP, IR, Mach, Demag, SD, Bulroc, Halco Mach, Digger etc.

High air pressure series:

Drill Bit	Bit Dia.(mm)	NO.Air Holes	Gauge Buttons	Front Buttons	Weight(Kg)	Part No.
Cop32	85	2	6×φ14	4×φ12	4.2	COP32-85
	90	2	6×φ14	5×φ12	4.5	COP32-90
	95	2	7×φ14	5×φ12	4.7	COP32-95
	100	2	8×φ14	6×φ12	5.0	COP32-100
	105	2	8×φ14	6×φ13	5.3	COP32-105
BR3	85	2	6×φ14	4×φ12	3.8	BR3-85
	90	2	6×φ14	5×φ12	4.0	BR3-90
	95	2	7×φ14	5×φ12	4.3	BR3-95
	100	2	8×φ14	6×φ12	4.8	BR3-100
	105	2	8×φ14	6×φ13	5.2	BR3-105
HD35(IR3.5,Cop34)	85	2	6×φ14	4×φ12	4.2	HD35-85
	90	2	6×φ14	5×φ12	4.5	HD35-90
	95	2	7×φ14	5×φ12	4.8	HD35-95
	100	2	8×φ14	6×φ12	5.0	HD35-100
	105	2	8×φ14	6×φ13	5.5	HD35-105
XL3	85	2	6×φ14	4×φ12	4.5	XL30-85
	90	2	6×φ14	5×φ12	4.7	XL30-90
	95	2	7×φ14	5×φ12	4.9	XL30-95
	100	2	8×φ14	6×φ12	5.0	XL30-100
	105	2	8×φ14	6×φ13	5.5	XL30-105

  

Drill Bit	Bit Dia.(mm)	NO.Air Holes	Gauge Buttons	Front Buttons	Weight(Kg)	Part No.
HD45(DHD340A,Cop44)	105	2	6×φ14	5×φ13	8.5	HD45-105
	110	2	7×φ14	6×φ13	8.8	HD45-110
	115	2	8×φ14	7×φ13	9.0	HD45-115
	120	2	8×φ14	8×φ13	9.8	HD45-120
	127	3	9×φ14	9×φ14	11.0	HD45-127
SD4	105	2	6×φ14	5×φ13	9.0	SD4-105
	110	2	7×φ14	6×φ13	9.5	SD4-110
	115	2	8×φ14	7×φ13	9.8	SD4-115
	120	2	8×φ14	8×φ13	11.5	SD4-120
	127	3	9×φ14	9×φ14	12.3	SD4-127
QL40	105	2	6×φ14	5×φ13	9.0	QL40-105
	110	2	7×φ14	6×φ13	9.2	QL40-110
	115	2	8×φ14	7×φ13	9.5	QL40-115
	120	2	8×φ14	8×φ13	10.3	QL40-120
	127	3	9×φ14	9×φ14	11.5	QL40-127
Mission40	105	2	6×φ14	5×φ13	6.0	M40-105
	110	2	7×φ14	6×φ13	6.2	M40-110
	115	2	8×φ14	7×φ13	6.6	M40-115
	120	2	8×φ14	8×φ13	7.0	M40-120
	127	3	9×φ14	9×φ14	7.4	M40-127

 

Drill Bit	Bit Dia.(mm)	NO.Air Holes	Gauge Buttons	Front Buttons	Weight(Kg)	Part No.
HD55(DHD350R,Cop54)	133	2	7×φ16	6×φ14	16	HD55-130
	140	2	8×φ16	7×φ14	16.5	HD55-140
	146	2	8×φ16	8×φ14	17	HD55-146
	152	2	8×φ16	7×φ16	17.5	HD55-152
	165	2	8×φ16	8×φ16	18.5	HD55-165
SD5	133	2	7×φ16	6×φ14	15.5	SD5-130
	140	2	8×φ16	7×φ14	16	SD5-140
	146	2	8×φ16	8×φ14	16.5	SD5-146
	152	2	8×φ16	7×φ16	17	SD5-152
	165	2	8×φ16	8×φ16	18	SD5-165
QL50	133	2	7×φ16	6×φ14	15.5	QL50-130
	140	2	8×φ16	7×φ14	16	QL50-140
	146	2	8×φ16	8×φ14	16.5	QL50-146
	152	2	8×φ16	7×φ16	17	QL50-152
	165	2	8×φ16	8×φ16	18	QL50-165
Mission50	133	2	7×φ16	6×φ14	12.5	M50-130
	140	2	8×φ16	7×φ14	13.5	M50-140
	146	2	8×φ16	8×φ14	14	M50-146
	152	2	8×φ16	7×φ16	14.4	M50-152
	165	2	8×φ16	8×φ16	15.0	M50-165

 

Drill Bit	Bit Dia.(mm)	NO.Air Holes	Gauge Buttons	Front Buttons	Weight(Kg)	Part No.
HD65(DHD360,Cop64)	152	2	8×φ16	8×φ16	22.0	HD65-152
	165	2	8×φ18	8×φ16	24.0	HD65-165
	178	2	8×φ18	8×φ16	26.0	HD65-178
	190	3	9×φ18	9×φ16	28.0	HD65-190
	203	2	10×φ18	10×φ16	29.5	HD65-203
SD6	152	2	8×φ16	8×φ16	26.0	SD6-152
	165	2	8×φ18	8×φ16	27.0	SD6-165
	178	2	8×φ18	8×φ16	29.0	SD6-178
	190	3	9×φ18	9×φ16	32.0	SD6-190
	203	2	10×φ18	10×φ16	34.0	SD6-203
QL60	152	2	8×φ16	8×φ16	24.0	QL60-152
	165	2	8×φ18	8×φ16	25.0	QL60-165
	178	2	8×φ18	8×φ16	27.0	QL60-178
	190	3	9×φ18	9×φ16	29.0	QL60-190
	203	2	10×φ18	10×φ16	33.0	QL60-203
Mission60	152	2	8×φ16	8×φ16	22.0	M60-152
	165	2	8×φ18	8×φ16	23.0	M60-165
	178	2	8×φ18	8×φ16	24.0	M60-178
	190	3	9×φ18	9×φ16	25.0	M60-190
	203	2	10×φ18	10×φ16	28.0	M60-203

 

Drill Bit	Bit Dia.(mm)	NO.Air Holes	Gauge Buttons	Front Buttons	Weight(Kg)	Part No.
HD85(DHD380,Cop84)	195	3	9×φ18	9×φ18	34.0	HD85-195
	203	2	10×φ18	10×φ18	36.0	HD85-203
	216	3	12×φ18	12×φ18	45.0	HD85-216
	254	3	12×φ18	20×φ18	58.0	HD85-254
	305	4	12×φ18	30×φ18	75.0	HD85-305
SD8	195	3	9×φ18	9×φ18	33.0	SD8-195
	203	3	10×φ18	10×φ18	37.0	SD8-203
	216	4	12×φ18	12×φ18	42.0	SD8-216
	254	4	12×φ18	20×φ18	53.0	SD8-254
	305	4	12×φ18	30×φ18	80.0	SD8-305
QL80	195	3	9×φ18	9×φ18	33.0	QL80-195
	203	3	10×φ18	10×φ18	37.5	QL80-203
	216	4	12×φ18	12×φ18	42.0	QL80-216
	254	4	12×φ18	20×φ18	54.0	QL80-254
	305	4	12×φ18	30×φ18	82.0	QL80-305
Mission80	195	3	9×φ18	9×φ18	-	M80-195
	203	3	10×φ18	10×φ18	-	M80-203
	216	4	12×φ18	12×φ18	-	M80-216
	254	4	12×φ18	20×φ18	-	M80-254
	305	4	12×φ18	30×φ18	-	M80-305

 

Drill Bit	Bit Dia.(mm)	NO.Air Holes	Gauge Buttons	Front Buttons	Weight(Kg)	Part No.
SD10	254	3	12*Φ18	20*Φ16	108	SD10-254
	305	4	12*Φ18	36*Φ16	125	SD10-305
	311	4	12*Φ18	36*Φ16	130	SD10-311
	318	4	12*Φ18	36*Φ16	142	SD10-318
	330	4	16*Φ18	42*Φ16	155	SD10-330
Numa100	254	3	12*Φ18	20*Φ16	90	Numa100-254
	305	4	12*Φ18	36*Φ16	102	Numa100-305
	311	4	12*Φ18	36*Φ16	104	Numa100-311
	318	4	12*Φ18	38*Φ16	106	Numa100-318
	330	4	14*Φ18	42*Φ16	112	Numa100-330

 

Drill Bit	Bit Dia.(mm)	NO.Air Holes	Gauge Buttons	Front Buttons	Weight(Kg)	Part No.
DHD1120	305	4	12*Φ18	36*Φ16	152	DHD1120-305
	311	4	12*Φ18	36*Φ16	157	DHD1120-311
	330	4	16*Φ18	42*Φ16	165	DHD1120-330
	356	4	16*Φ19	42*Φ16	178	DHD1120-356
	381	4	16*Φ19	42*Φ18	198	DHD1120-381
SD12	305	4	12*Φ18	36*Φ16	156	SD12-305
	311	4	12*Φ18	36*Φ16	168	SD12-311
	330	4	16*Φ18	42*Φ16	180	SD12-330
	356	4	16*Φ19	48*Φ16	191	SD12-356
	381	4	16*Φ19	48*Φ18	200	SD12-381
NUMA120	305	4	12*Φ18	36*Φ16	152	N120-305
	311	4	12*Φ18	36*Φ16	158	N120-311
	330	4	16*Φ18	42*Φ16	165	N120-330
	356	4	16*Φ19	48*Φ16	178	N120-356
	381	4	16*Φ19	48*Φ18	195	N120-381
NUMA125	305	4	12*Φ18	36*Φ16	170	N120-305
	311	4	12*Φ18	36*Φ16	173	N120-311
	330	4	16*Φ18	42*Φ16	182	N120-330
	356	4	16*Φ19	48*Φ16	191	N120-356
	381	4	16*Φ19	48*Φ18	200	N120-381

 

Drill Bit	Bit Dia.(mm)	NO.Air Holes	Gauge Buttons	Front Buttons	Weight(Kg)	Part No.
HD275	311	3	15*Φ18	36*Φ16	205	HD275-331
	334	3	18*Φ19	44*Φ18	216	HD275-334
	356	3	18*Φ19	48*Φ18	225	HD275-356
	368	4	20*Φ19	50*Φ18	230	HD275-368
	381	4	20*Φ19	54*Φ19	236	HD275-381
HD330	381	4	20*Φ19	54*Φ18	297	HD330-381
	406	4	20*Φ19	58*Φ18	311	HD330-406
	431	4	20*Φ19	64*Φ18	324	HD330-431
	445	4	24*Φ20	72*Φ18	334	HD330-445
	470	4	24*Φ20	80*Φ18	347	HD330-470
HD475	495	4	24*Φ20	88*Φ18	710	HD475-495
	525	4	24*Φ20	100*Φ18	760	HD475-525
	580	4	24*Φ20	116*Φ18	855	HD475-580
	660	4	28*Φ20	140*Φ19	950	HD475-660
	680	4	28*Φ20	144*Φ19	968	HD475-680
HD525	711	4	28*Φ20	154*Φ19	1455	HD525-711
	762	4	32*Φ20	172*Φ19	1539	HD525-762
	780	4	32*Φ20	180*Φ19	1564	HD525-780
	825	4	36*Φ20	216*Φ19	1625	HD525-825
	998	4	40*Φ20	348*Φ19	1980	HD525-998

 

 

---------------------------------DTH BIT FACE SHAPE & CARBIDE BUTTON SHAPE--------------------

 

A: Bit face shape selection

DropCenter Bit
For high penetration rates in soft to medium-hard and fissured rock formations. Low to medium air pressures. Maximum hole deviation control.
Concave face
The all-round application bit face specifically for medium hard and homogenerous rock formations. Good hole deviation control and good flushing capacity.
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.
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.
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.

 

B: Insert Carbide Button Shape Selection

 

Matching the insert to the job requirements is essential in achieving the desired results.  Different buttons is ideal for different ground conditions, abrasion levels, PSIs and penetration levels.  In general, the larger the number of gauge buttons the better overall performance, especially in hard rock.

 

Hemispherical
• Height 0.5 Ø

• Application Strength - multipurpose

• Best suited to hard ground

• 25,000 to 45,000 PSI (170 to 300 MPa)

• Abrasive to very abrasive
Ballistic Button
• Height 0.75 Ø

• Application Strength - fast penetration

• Best suited to soft ground

• 10,000 to 20,000 PSI (70 to 140 MPa)

• Non abrasive ground
Parabolic Button (semi ballistic)
• Height 0.6 Ø

• Application Strength - fast penetration

• Best suited to medium ground

• 15,000 to 25,000 PSI (100 to 170 MPa)

• Mildly abrasive ground
Conical Button
• Height 0.65 Ø

• Application Strength - fast penetration

• Suited for all non-abrasive ground types

• Smaller contact area

• Best suited for smaller diameter bits