412f Airflush Double Tube Core Barrel

• Customized: Customized
• Certification: CE, ISO
• Usage: Core Drilling, Mining Exploration
• Material: Carbon Steel
• Condition: New
• Size: 412f
• Model NO.: 412F
• Advantage: Strong Compatibility
• Color: Blue
• Quality: Excellent
• Transport Package: in Plywood Case
• Specification: 1.5m 3m
• Trademark: csmiracleland
• Origin: Changsha, Hunan, China
• HS Code: 8431432000
• Production Capacity: 50 Sets/Month

Product Description

The 412F airflush core barrel is designed for coring in soft to medium hard rocks using air as the flushing medium. It is often used for open-cast coal exploration and general geotechnical coring in situations where it is not desirable to use air as the flushing medium.

The large annular space between the inner and outer tubes, in combination with face-discharge core bit designs, allows a large volume of air to reach the face of the bit . This is essential for cooling the bit and uplifting rock cuttings from the borehole.

This core barrel has proved to be very effective when used with PCD core bits, giving a fast rate of penetration and good core recovery

Key to Main Parts of 412F Core Barrel Assembly

Complete core barrel consists of:

1. Core Barrel Head

2.  Inner Tube 1.5m or 3.0m

3. Outer Tube 1.5m or 3.0m

4. Inner Tube Extension

5. Core Lifter

6. Core Lifter Case

Size
 

Core Barrel Size:

Wireline series: AQ, BQ, NQ, HQ, PQ, PQ3, HQ3, NQ3, BQ3, NQ2, WL-56, WL-66, WL-76

T2 series: T2 46, T2 56, T2 66, T2 76, T2 86, T2 101

TT series: TT 46, TT 56

T6 series: T6 76, T6 86, T6 101, T6 116, T6 131, T6 146

T6S series: T6S 76, T6S 86, T6S 116, T6S 131, T6S 146

B series: B46, B56, B66, B76, B86, B101, B116, B131, B146

MLC series: NMLC, HMLC

LTK series: LTK48, LTK60

WF series: HWF, PWF, SWF, UWF, ZWF

WT series: RWT, EWT, AWT, BWT, NWT, HWT (Single Tube, Double Tube)

WG series: EWG, AWG, BWG, NWG, HWG (Single Tube, Double Tube)

WM series: EWM, AWM, BWM, NWM, HWM

Other sizes: AX, BX, NX, HX, TBW, NQTT, HQTT, TNW, 412F, BTW, TBW, M101

Technical Data

Specification	Core Barrel Type
	412F
Hole Diameter (mm)	107.2
Core Diameter (mm)	74.7
Kerf / Crown Thickness (mm)	16.25
Cutting Area (cm2)	46.5
Hole Area (cm2)	90.3
Cutting Area as % of Hole Area	51.4%
Core Area (cm2)	43.8
Thread Connection in Head*	HW
Recommended Casing	PW
Conversion to triple tube possible	Yes

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