JIN JU FENG

16 Years Manufacturing Experience

Hot Sale High Quality Taphole Drill Rod Rock Drill Tools for Blast Furnace

Short Description:

Outer Diameter : R32, R38, R39 etc.
Wall thickness: 38*12, 32*10, 30*10 etc.
Length: 2m to 12 m
Material: 10#, 20#, 30#, 45#, 20G, 40Cr, 20Gr, 16mn-45mn, 27SiMn, Cr5Mo, 12CrMo(T12), 12Cr1MoV, 12Cr1MoVG, 10CrMo910, 15CrMo, 35CrMo, 40CrMo, etc
Type: JD32-1832R/25H、JD38-1832R, JD38-2438R, JD38-3038R, JD38-3638R, JD38-3838R, JD38-4338R etc.


Product Detail

Product Tags

Product Description

Processing Type Forging
Suitable Rod Extention/ Speed Rod
Trademark JINJUFENG
Transport Package According to customer requirements
Specification 25-135mm

Drilling Rods

Length

Weight

Part Number

mm

Foot

kg

R38-Round39-R32

a1

 

2800

9.2

22.7

25R39-R32/R38-2800-40

3400

11.2

27.8

25R39-R32/R38-3400-40

3600

11.9

29.4

25R39-R32/38-3600-40

4100

13.5

34.5

25R39-R32/38-4100-40

4300

14.1

35.3

25R39-R32/38-4300-40

T38-Round39-T38

a2

 

3000

9.8

24.9

25R39-T38-3000-40

3200

10.5

26.5

35R39-T38-3200-40

4000

13.1

33.4

25R39-T38-4000-40

 

Liaocheng, Shandong China

We are manufacturer and meantime stockist, can ensure quick delivery.

Package

Reverse Circulation RC Drilling Rods

Reverse Circulation RC Drilling Rods is also called Double wall drill pipe, double drill pipe or Dual Wall drill pipe. It consists of two layers of inner and outer drill pipes (called inner pipe and outer pipe). The inner and outer pipes constitute an annular gap, which is a channel for pumping the flushing medium to the bottom of the hole when hydraulic rock drilling and center sampling drilling. The central hole of the inner tube is fixed as a whole by discharging the flushing medium, and each double-walled drill pipe is connected with the screw of the outer tube to ensure transmission of torque and pressure. The inner tube is usually connected by a plug-in method, which generally only serves as a flushing medium. Therefore, a sealing device is required at the plug-in place.

Double Wall Drill Pipes are used in drilling of wells with diameter 84 and 93 mm and depth up to 300 m in soils of II-V drill ability classes with seams of soils up to VII drill ability class in the fulfilment of all necessary prospecting and geochemical operations, in geological mapping and exploration of deposits of solid minerals.

Drilling of wells is carried out with hydro-transport of the core delivered on the surface along the internal channel of the double drill string.

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