A4 Bit for Medium Soft to Hard and Adrasive Fractured Rocks

• Customization: Available
• Type: Core Drill
• Usage: Well Drilling, Coal/Overpass/Ore Ice Drilling
• Model NO.: NAU(NQ), HAU(HQ)
• Certification: Dcdma
• Customized: Customized
• Length: Stub-Length
• Material: Diamond
• Standard: Dcdma
• Transport Package: Wooden Box
• Trademark: AU-PROSPECT
• Origin: China
• HS Code: 730451
• Production Capacity: 100, 000PCS/Year
• Package Size: 12.00cm * 10.00cm * 10.00cm
• Package Gross Weight: 2.200kg
• Lead Time: 5 days (1 - 2 Pieces) ; To be negotiated ( > 2 Pieces)

Product Description

A SERIES BIT MATRIX

 

Bit Matrix No.	Rock Features	Rock Type	Hardness
A2	Extremely abrasive,highly fractured	Wear-resistant sandstone, broken wear-resistant sandstone
A3	Medium soft,abrasive,fractured	Broken wear-resistant sandstone, sandy shale, limestone, threshite
A4	Medium soft-hard,abrasive,fractured	Sandy shale, limestone, threshite, gabbro
A5	Medium hard-hard,polishing+mixed	Pyroxene, sorite, gabbro, diabase
A6	Medium hard-hard,polishing+mixed	Threshold, gabbro, diabase, basalt, mica schist
A7	Medium hard-very hard,moderately abrasive	Gabbro, diabase, basalt, mica schist, siltstone, granite
A8	Hard-very hard,polishing	Coarse-grained basalt, mica schist, siltstone, granite, hematite, basalt, hard quartzite
A9	Hard-very hard,slightly abrasive	Hematite, Basalt, Hard Quartzite, Quartz Conglomerate, Strip Iron Ore
A10	Very hard-extremly hard,slightly abrasive	Hard Quartzite, Quartz Conglomerate, Bar Iron Ore, Taconite
A12/14	Extremly hard,non-abrasive,fine grain,very competent	Bar Iron Ore, Taconite, Quartzite
A15	The hardest	Iron cement, quartzite, black silicate

HE SERIES BIT MATRIX

HE Series	Mohs Hardness	ROCKFEATURES	ROCK TYPE	Hardness
HE3	3.0-5.5	Soft	Sandstone,Sandy Shale,Limestone,Sandy Limestone,Conglomerates,Peridotite,Serpentine,Weathered Granite,Dolomite
HE5	4.0-6.0	Soft to Medium Hard	Abrasive Coarse-Grained Granite, Basalt,Pegmatite,Skarns,Rhyolite
HE7	5.0-6.5	Medium to Hard	Granite,Pegmatite,Skarns,Rhyolite,Jasperite,Glassy Quartz,Basalt
HE9	6.0-7.5	Hard to Very Hard	Granite,Syenite,Quartz,Diorite,Gneiss,Silicified Volcanics,Diabase,Gabbro,Quartz,Chert,Basalt
HE11	6.5-7.5	Hard to Extremely Hard	Basalt, Felsic,Volcanic Rock,Diorite,Silicified Volcanics,Quartz,Quartz,Chert
HE13	7.0-8.0	Hardest	Calcite,Quartzite,Taconite

Packaging & Shipping

 

BIT Dimentions

Type	Bits
	O.D		I.D
	Imperial	Metric	Imperial	Metric
BTW	2.345	59.56	1.667	42.1
NTW	2.965	75.31	2.218	56.1
HTW	3.762	95.57	2.809	71.1
AWL(AQ)	1.875	47.63	1.062	26.97
BWL(BQ)	2.345	59.65	1.433	36.4
BWL-3(BQ3)	2.345	59.65	1.32	33.53
NWL(NQ)	2.965	75.31	1.875	47.63
NWL-3(NQ3)	2.965	75.31	1.775	45.08
HWL(HQ)	3.762	95.57	2.5	63.5
HWL-3(HQ3)	3.762	95.57	2.406	61.11
PWL(PQ)	4.805	122.05	3.345	84.96
PWL-3(PQ3)	4.805	122.05	3.27	83.06

Reaming Shells Dimentions

Type	Reaming Shells
	O.D
	Imperial	Metric
BTW	2.36	59.95
NTW	2.98	75.7
HTW	3.783	96.09
AWL(AQ)	1.89	48.01
BWL(BQ)	2.36	59.95
BWL-3(BQ3)	2.36	59.95
NWL(NQ)	2.98	75.7
NWL-3(NQ3)	2.98	75.7
HWL(HQ)	3.783	96.09
HWL-3(HQ3)	3.783	96.09
PWL(PQ)	4.828	122.65
PWL-3(PQ3)	4.828	122.65

Casing Shoes Dimentions

Type	Casing Shoes
	O.D		I.D
	Imperial	Metric	Imperial	Metric
AW	2.345	59.56	1.9	48.26
BW	2.965	75.31	2.37	60.2
NW	3.615	91.82	2.992	76
HW(CDDA)	4.625	117.48	3.925	99.7
HW(DCDMA)	4.625	117.48	3.975	100.97
HWT(CDDA)	4.625	117.48	3.925	99.7
HWT(DCDMA)	4.625	117.48	3.975	100.97
PW	5.653	143.58	4.855	123.3
PWT	5.653	143.58	4.855	123.3
56mm	2.205	56	1.85	47
76mm	2.992	76	2.638	67
86mm	3.386	86	3.031	77
101mm	3.976	101	3.445	87.5
131mm	5.157	131	4.646	118

Rod Shoes Dimentions

Type	Rod Shoes
	O.D		I.D
	Imperial	Metric	Imperial	Metric
BWL(BQ)	2.345	59.56	1.78	45.21
NWL(NQ)	2.965	75.31	2.37	60.2
HWL(HQ)	3.615	91.82	2.992	76
PWL(PQ)	4.75	120.66	3.985	101.22

Before placing order, here is some infomation we'd like to know:
How deep is the project?
What is the rock?
Is it hard, soft or complex rock?
Is the rock very complete, semi-broken or broken?
How is the abrasiveness of rock?
Have you use any other brand before? what is the brand(optional)?
How is the performance previously?
Such as:
Drilling speed?
Meters downhole?
Drill bit working life?
Above questions will help us be more familar with your ground situation, meantime, more accurate and appropriate bit will be provided to you.

Suggestions:
SOFT ROCK FORMATIONS
LOW RPM's
Large diamonds/cutters
Large waterways for better flushing and higher GPM flow rates
Hard matrix for longer bit life

HARD ROCK FORMATIONS
High RPM's
Small diamonds/cutters
Small waterways
Soft matrix to expose more cutting elements