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GJ/GJT Series TCI tricone bit

GJ/GJT series Tricone bit, certified by ISO., cover wide size code, favorable price - more info check here: http://www.buyindustrialtools.com/GJ-GJT-Series-TCI-tricone-bit-10100471/

Quick Brief

Place of Origin: Hebei China (Mainland) Brand Name: jingzuan Type: Center Drill Bit Material: High Carbon Steel Use: Metal Drilling

Product Features:

GJ/GJT series Tricone bit

certified by ISO.

cover wide size code

favorable price

Business Terms:

Port: Tianjin

Minimum Order Quantity: 1 Piece/Pieces

Supply Ability: 300 Piece/Pieces per Month

Payment Terms: L/C,T/T,Western Union

Contact Supplier
GJ/GJT Series TCI tricone bit
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Product Packagings & Delivery Terms:

Packaging Detail: steel box or as customers request

Delivery Detail: up to customer order quantity

Specifications and Product Details:

GJ/GJT series

TCI tricone
certified by ISO.
cover wide size code
best price
delivery on time

GJ/GJT

METAL SEALED BIT WITH ROLLER BEATING

GJ/GJT series bit adopts metal seal with roller bearing ,which can drill stably with middle to low WOB and middle to high RPM,it is the ideal choice for higher part of well section.

The size range of GJ/GJT series bit is from8 1/2 to 17 1/2 inch, and IADC varies from 115 to 545.For example:17 1/2 GJT515GC.

MAIN STRUCTURE FEATURES

  1. sizes of bearing journal and rollers are made larger by arranging the rollers in recesses in cone body.
  2. All rubber compensator is used which can limit pressure differential and prevent drilling fluid from entering the lubrication system and this provides the bearing system with good assurance of lubrication.
  3. Shirttail and head OD are hardfaced for enhanced gage protection. Center nozzle is equipped for bits of larger sizes.

For GJT,a row of inserts is added between gage row and heel row to trim borehole wall and protect cone shell.

Bit size

API regular pinRecommended make up torque
InchMmInchKN·M
3 3/495.32 3/84.1~4.7
3 7/898.42 3/84.1~4.7
4 1/8104.82 3/84.1~4.7
4 1/4108.02 3/84.1~4.7
4 1/2114.32 3/84.1~4.7
4 5/8117.52 7/86.1~7.5
4 3/4120.72 7/86.1~7.5
5 1/2139.73 1/26.1~7.5
5 5/8142.93 1/29.5~12.2
5 2/3143.93 1/29.5~12.2
5 3/4146.13 1/29.5~12.2
5 7/8149.23 1/29.5~12.2
6152.43 1/29.5~12.2
6 1/8155.63 1/29.5~12.2
6 1/4158.83 1/29.5~12.2
6 5/8168.33 1/29.5~12.2
6 3/4171.53 1/29.5~12.2
7 1/2190.53 1/29.5~12.2
7 5/8193.74 1/216.3~21.7
7 7/8200.04 1/216.3~21.7
8 3/8212.74 1/216.3~21.7
8 1/2215.94 1/216.3~21.7
8 5/8219.14 1/216.3~21.7
8 3/4222.34 1/216.3~21.7
9 1/2241.36 5/838~43.4
9 5/8244.56 5/838~43.4
9 7/8250.86 5/838~43.4
10 1/2266.56 5/838~43.4
10 5/8269.96 5/838~43.4
11279.46 5/838~43.4
11 5/8295.36 5/838~43.4
12304.86 5/838~43.4
12 1/4311.76 5/838~43.4
12 5/16312.76 5/838~43.4
12 3/8314.36 5/838~43.4
12 7/16315.96 5/838~43.4
12 5/8320.76 5/838~43.4
13 1/2342.96 5/838~43.4
13 5/8346.16 5/838~43.4
13 3/4349.36 5/838~43.4
14 1/2368.37 5/846.1~54.2
14 3/4374.77 5/846.1~54.2
15 1/2393.77 5/846.1~54.2
16406.47 5/846.1~54.2
17 1/2444.57 5/846.1~54.2
18 7/8479.47 5/846.1~54.2
20508.07 5/846.1~54.2
22558.87 5/846.1~54.2
24609.67 5/846.1~54.2
26660.47 5/846.1~54.2
369006 5/846.1~54.2
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