MRING Concentric Casing Drilling System 146mm with DHD340 Hammer for Overburden Drilling

Price Negotiable

Price: 999-99999USD/PC

MOQ: 1PC

Delivery Time: 3-5WEEKS

Brand: MING

Product Description

MRING Concentric Casing Drilling System Overview

The Kingdrilling MRING Concentric Casing System is an advanced down-hole hammer drill bit system specifically designed for efficient drilling through overburden with casing. This single-use symmetric casing drilling system combines pilot bit, ring bit, and casing shoe components for optimal performance.

Key Specifications

Product Model: 146 MM MRING Single-Use Symmetric Casing Drilling System

Matched Hammer: DHD340

Casing Pipe OD: 146mm

MRING System Components

The complete MRING Concentric Casing Drilling Bit system consists of three main components:

Pilot Bit
Ring Bit
Casing Shoe

Product Specifications Table

Model	External Dia. (mm)	Casing Dia. (OD*ID)	Spline
MK-MRING90	125	114*102	MACH33, DHD3.5
MK-MRING115	155	139*127	DHD340, SD4, QL4
MK-MRING140	188	168*153	DHD350, SD5, QL5
MK-MRING165	215	194*181	DHD360, SD6, QL6
MK-MRING190	238	219*206	DHD360, SD6, QL6
MK-MRING215	276	254*240	DHD380, SD8, QL8
MK-MRING235	293	273*254	DHD380, SD8, QL8
MK-MRING240	293	273*260	DHD380, SD8, QL8
MK-MRING280	345	323*303	SD10
MK-MRING315	375	355*335	SD10
MK-MRING365	432	406*387	N120, N125, SD12
MK-MRING460	530	508*483	N125, N180
MK-MRING510	580	559*533	N180
MK-MRING560	635	610*584	N180
MK-MRING610	695	660*632	N240
MK-MRING660	735	711*685	N240
MK-MRING710	785	762*736	N240
MK-MRING745	838	813*780	N240
MK-MRING810	886	864*838	N240, N240S
MK-MRING860	935	914*884	N240S
MK-MRING910	980	965*935	N240S
MK-MRING960	1038	1016*986	N240S, M330
MK-MRING1010	1090	1067*1041	M330

Ordering Information

To place an order, please provide the following specifications:

Casing Tube OD & ID
Ring Bit Diameter
Hammer Shank Type
Maximal Normal Bit Diameter
Casings and Casing Shoes Installation Method (thread standard if applicable)

Custom MRING system sizes are available upon customer request.

Technical Advantages

Enhanced penetration rate and superior perpendicularity control
Versatile application for straight, oblique, and angled holes
Premium materials: TIMKIN Steel with YK05, T6 tungsten carbide from Element Six in Germany
Advanced manufacturing using electron-hydraulic forging hammer technology
Precision heat treatment in multipurpose furnaces
40+ years of engineering expertise ensuring quality with 100% inspection

Product Images