FSG Series FLRT Tricone Roller Bit 12 1/4" FSG124 311mm Steel Tooth Bit

12 1/4" FSG124 , 311mm Steel Tooth Bit , Sealed Roller Bearing , Tricone Roller Bit , Alloy Hard Facing on Tooth

SIZE AVAILABLE

From 5 7/8inch to 36inch

RECOMMENDED DRILLING PARAMETERS FOR APPLICATION

The above chart represents commonly available sizes and types, we do produce other sizes and types of rock bits which do not appear on this list. Please contact us for more information.

ROTARY SPEED

The ROP will also be affected by the rotary speed of the bit and an optimum speed must be determined. The RPM influences the ROP because the teeth must have time to penetrate and sweep the cuttings into the hole. Figure 28 shows how ROP varies with RPM for different formations. The non-linearity in hard formations is due to the time required to break down rocks of higher compressive strength. Experience plays a large part in selecting the correct rotary speed in any given situation.

The RPM applied to a bit will be a function of :

a. Type of bit

In general lower RPMs are used for insert bits than for milled tooth bits. This is to allow the inserts more time to penetrate the formation. The insert crushes a wedge of rock and then forms a crack which loosens the fragment of rock.

b. Type of formation

Harder formations are less easily penetrated and so require low RPM. A high RPM may cause damage to the bit or the drill string.

Hejian City Feilong Retop Rock Bit Manufacture Co., Ltd. is established in 1992 and located in Hebei Province, China. Integrated with Beijing Feilong International Trade Co., Ltd. and Beijing Superior Drilling Equipment Co., Ltd. , the company has involved into a comprehensive enterprise integrating production, R&D and distribution of tricone bits, PDC bits, trenchless and rotary drilling tools.

The company serves the customers in oil & gas drilling, mining, exploration, HDD drilling and rotary drilling with covering a complete product line.

The company covers an area of 36,000 square meter and has more than 200 employees, including more than 100 technicians. The company has equipped with contemporary advanced processing equipment of processing and detecting and testing instruments. The company has obtained the certification of the quality system: ISO 9001, ISO 14001, OHSAS 18001 and mostly important API 7-1.

The company’s annual production of various drilling tools is over 10,000 sets, which exported to over 20 countries and regions. We, FeiLong ReTop ( FLRT ) are willing to cooperate with friends at home and abroad to make joint development and contribute to global energy development and urban infrastructure development.