Grade：JT05A
Breif introduce：The new grade is used the middle grain size for Germany H.C Stark company, our engineer adjusting the size of raw materials (WC powder and Co powder), improving the forming and sintering process, the cemented carbide brand JT05A with excellent performance was developed.And after the bit is made, new brand has obvious performance advantage compared with other manufacturers' brand through the site test .
JT05A Performance：
Zhuzhou Jat Cemented carbide Co., Ltd
Our button：
In accordance with the using situation：
Information on bits, equipment, conditions, etc:
|
Grade |
Type |
Test quantity |
Bit Specification |
Bits factory |
|||
|
JT05A |
JQ1623-30 |
4 pcs |
115 |
Hunan New Diamond Construction Machinery Co.,Ltd |
|||
|
- |
- |
- |
Button Quantity |
rock sort |
|||
|
- |
- |
- |
Gauge button7pcs(Q1623)， Front button 6pcs(Z1419) |
White and black granite are interlaced |
|||
|
- |
- |
- |
|||||
|
Drill Truck |
Caterpillar hydraulic drill machine manufacturer and model |
Screw air compressor manufacturer and model |
wind pressure |
||||
|
Crawler drill truck |
Hebei Jinke Drilling Machine Co., LTD JK590 |
LiUTECH LUY220D-25 |
19bar |
||||
|
Drill bit specification in the construction site：type is 115，high wind pressure drill of black. |
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|
The service life for advantages and disadvantages of the drill bits used at the site: The drill bits used in the original site can drill an average of 210m in this area, and early wear, broken teeth and tooth loss are frequent. |
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List of results:
|
Result for this test |
grade |
Deep of Granity (m) |
Driving speed (m/min) |
Initial maximum pitch (mm) |
Scrap maximum pitch (mm) |
Gauge button loss (mm) |
Initial library diameter (mm) |
Scrap library diameter (mm) |
Gauge button diameter (mm) |
Cylindrical exposed button height (mm) |
abnormal |
Note |
|
JT05A- 200813 |
355 |
0.45 |
112.83 |
110.21 |
2.62 |
113.89 |
109.97 |
16.06 |
1 |
- |
Normal scrap |
|
|
JT05A- 200724 |
320 |
0.46 |
109.94 |
2.89 |
107.68 |
1 |
- |
Normal scrap |
||||
|
JT05A- 200812 |
347 |
0.44 |
110.23 |
2.60 |
108.67 |
1 |
- |
Normal scrap |
||||
|
Compared |
K bits-200706 |
160 |
- |
- |
112.24 |
- |
- |
111.76 |
16.10 |
1 |
Breakage or loss button |
Scrape in advance |
|
K bits -200705 |
299 |
0.44 |
- |
110.80 |
- |
- |
- |
1 |
Breakage button |
Scrape |
||
|
K bits -200708 |
Above 300m
|
0.48 |
- |
- |
- |
- |
- |
- |
1 |
Breakage button |
Scrape |
Bit abrasion after use：
The data for new grade JT05A compare with famous K manufacturer in inland:
|
bits |
Drilling machine NO. |
Amount meter |
abnormal |
Note |
|
JT05A bit |
4 |
347m |
- |
Normal scrap |
|
JT05A bit |
5 |
320m |
- |
Normal scrap |
|
K factory bit-200708 |
1 |
Above 300m(unknow) |
Breakage of button |
Scrape |
|
K factory bit-200706 |
2 |
160 |
Breakage or loss button |
Scrape in advance |
|
K factory bit-200705 |
2 |
299 |
Breakage |
Scrape |
Using conclusion：
According to the construction site, the original drill bit used at the construction site can generally use around 200m, while the new drill bit can be used at least over 300m. Customers and operators are satisfied with the use of the new drill bit.
The rock strata in this site are mainly interlaced with white granite and black granite.The test bit can be used at least 300m at this site, and the design of the reservoir makes the service life of the bit relatively stable, without button breakage or button loss, which proves that the wear resistance and toughness of the test bit JT05A are applicable to the working conditions of extremely hard rocks such as granite and marble.
Zhuzhou Jat Cemented Carbide Co.,Ltd
Sep. 30th,2020
Contact: Alisa Chen
Phone: 0086-15574161911
Tel: 0086-73128281589
Email: sales@jatcarbide.com
Whatsapp: kogin
Add: Golden Valley Industrial Park, South Huanghe South Road, Tianyuan District, Zhuzhou, Hunan Province,China
live:934932206
kogin