JSRTC series is the main force product in the domestic market during the recent years. Market share is the highest; product technology is mature; performance is steady and excellent. The customers are satisfied with it in home and abroad market.
The diamond thickness is 1.7mm with partly 2.5mm. It is suitable for soft-medium formation's drilling. It possesses excellent resistance, shock resistance.

Available size

Model	1919	1916	1913	1908	1613	1608	1313	1308
Diameter(mm)	19.05	19.05	19.05	19.05	16	16	13.44	13.44
Height(mm)	19	16.31	13.2	8	13.2	8	13.2	8

 

 Standard Non-Plain PDC JSRNC Series 

JSRNC series is our new generation PDC cutter. It is our most advanced PDC cutter at present. Developed in 2004 and has been made several important technical improvement.

1. Diamond thickness is increased to 2.0mm (JSRTC: 1.7mm)
2. The impact strength is higher than the old series. 
3. Wear resistance is a bit higher than old series. 
4. Heat resistance is improved to 750 centigrade degrees while previous RTC is 700. 
New Technology: 
1. The diamond powder is selected in a higher degree. 
2. Use a new type of tungsten carbide that different from JSRTC cutters, which improved the strength character of bonding.
3. The claws of the interface are changed to be net-grooves-shaped which formed by 20 straight vertical grooves, and the depth of the grooves are shallower.
4. Improved the interior structure of the sintering cell that makes the pressure and temperature to be more uniform. It is very important for the PDC sintering.
5. Use new super heat-resistant metal, to avoid being contaminative during sintering. 
6. Amended the sintering processing, and improved the bonding strength of the diamond-diamond key among the diamond layer.
7. Increase the content of diamond, and increase the thickness of diamond layer up to 2.0mm.

In past year, JSRNC cutter is very widely used in China and other countries. It accepted by most customers and successfully substituted the old JSRTC cutter in the market.

Available size

Model	1919	1916	1913	1613	1608	1313	1308	808
Diameter(mm)	19.05	19.05	19.05	16	16	13.44	13.44	8.2
Height(mm)	19	16.31	13.2	13.2	8	13.2	8	8

 

JSMC series

JSMC series which is developed in the mid-term is the non- plain gear PDC. It consists of diamond layer and hard alloy. The thickness of diamond layer is about 0.9mm. Its character: high wear-resistance, high thermal-resistance, unstratified, the steady production techniques, the mature products quality.

JSMC series is processed according to the standard and techniques of oil drilling. The top-of –the-line oil user has made anchor bolt drill- head, thereby made drilling head high efficiency and longer life expectancy. The advantages MC series is recognized by more and more oil customers. It is becoming main products in the oil fields in the domestic and abroad.

Available size

Model	1916	1913	1908	1613	1608	1313	1308	1304	1008	811	808
Diameter(mm)	JSRNC or JSRTC are recommended in those size						13.44	13.3	10	8.2	8.2
Height(mm)							8	4.5	8	11	8