Excellent Core Recovery in Hard Rock Formations Diamond Drill Reamer with Cost-Effective Solution

• Type: Core Drill
• Usage: Coring
• Certification: CE, ISO
• Application: Reaming
• Industry: Geological Survey
• Payment Term: Tt or LC
• Model NO.: NMLC,HMLC,LTK48,LTK60,TBW,TNW,ATW,BTW,NTW,AQTK NXD
• Product Name: Reaming Shell/Reamer
• Thread Type: Pi, Metric, Dcdma etc.
• Surface Finish: Smooth
• Material: Diamond
• Coating: Natural Diamond or Man-Made Diamond
• Heat Resistance: High
• Cutting Edge: Sharp
• Transport Package: Nude/Wooden Case/Carten
• Specification: PQNQHQNTWHTWNQ3HQ3
• Trademark: BEST
• Origin: China
• HS Code: 82071910
• Production Capacity: 500000 Pieces/Year

Product Description

Product Description:

In drilling conditions, a diamond reamer serves several important functions:

1. Enlarging the Borehole: The primary purpose of a diamond reamer is to enlarge the diameter of the borehole. It is typically used after the initial pilot hole has been drilled using a core bit. The diamond reamer is attached to the bottom of the drill string and rotates to cut and remove additional material from the walls of the hole, increasing its diameter.

2. Smoothing the Borehole Surface: As the diamond reamer rotates, it smoothens the surface of the borehole. This helps remove any irregularities or roughness left behind by the core bit and creates a more uniform borehole profile. Smoothing the borehole surface can enhance the efficiency of subsequent drilling operations and improve the overall quality of the drilling process.

3. Preparing the Borehole for Core Retrieval: The diamond reamer plays a crucial role in preparing the borehole for core retrieval. By enlarging the diameter of the hole, it creates sufficient space for the core barrel to pass through and retrieve the core sample intact. The smooth borehole surface resulting from reaming helps facilitate the smooth extraction of the core.

4. Debris Removal: During drilling, the diamond reamer helps in removing drilling debris and cuttings from the borehole. The reaming action of the diamonds on the reamer's surface helps dislodge and push the cuttings out of the hole, allowing for better visibility and preventing the accumulation of debris that could impede drilling progress.

5. Maintaining Hole Straightness: The diamond reamer contributes to maintaining the straightness and trajectory of the borehole. It follows the path established by the pilot hole and helps guide the drill string in the desired direction. This helps ensure accurate drilling and alignment with the target zone or geological formation.

6. Enhancing Drilling Efficiency: By enlarging the borehole and smoothing the surface, the diamond reamer improves drilling efficiency. It reduces the friction between the drill string and the borehole wall, allowing for smoother advancement of the drill string and reducing the energy required for drilling. This can result in faster drilling rates and increased overall productivity.

7. Protecting the Core Bit: The diamond reamer also acts as a protective barrier for the core bit. It helps shield the core bit from direct contact with the borehole wall, reducing the wear and extending the life of the core bit. The reamer takes the brunt of the cutting and abrasive forces, preserving the core bit for longer and reducing the frequency of replacement.

Overall, a diamond reamer is a critical component in coring drilling operations. It enlarges the borehole, smoothens the surface, aids in debris removal, maintains hole straightness, enhances drilling efficiency, and protects the core bit. These functions collectively contribute to successful core retrieval and efficient drilling in various mining and exploration applications
 

Model or type:
 

Specifications

ITEM	DIAMOND BIT					Reaming shell
"Q" Series Wireline assembly	Size	Bit Outer Diameter		Bit Inner Diameter
		mm	inch	mm	inch	mm	inch
	AQ	47.60	1.88	26.97	1.06	48.00	1.89
	BQ	59.50	2.35	36.40	1.43	59.90	2.36
	NQ	75.30	2.97	47.60	1.88	75.70	2.98
	HQ	95.58	3.77	63.50	2.50	96.00	3.78
	PQ	122.00	4.80	84.96	3.35	122.60	4.83
Metric T2 Series	36	36.0	1.417	22.0	0.866	36.3	1.429
	46	46.0	1.811	32.0	1.260	46.3	1.823
	56	56.0	2.205	42.0	1.654	56.3	2.217
	66	66.0	2.598	52.0	2.047	66.3	2.610
	76	76.0	2.992	62.0	2.441	76.3	3.004
	86	86.0	3.386	72.0	2.835	86.3	3.398
	101	101.0	3.976	84.0	3.307	101.3	3.988
T Series	TAW	47.6	1.875	23.2	1.31	48.0	1.89
	TBW	59.5	2.345	44.9	1.77	59.9	2.36
	TNW	75.3	2.965	60.5	2.38	75.7	2.98

Reaming classification
T series	T36,T46,T56,T66,T76,T86
Cable series	AWL,BWL,NWL,HWL,PWL(Front end,rear end)
WT series	RWT,EWT,AWT,BWT,NWT,HWT(single tube/double tube)
T2/T series	T256,T266,T276,T286,T2101,T676,T686,T6101,T6116,T6131,T6146,T6H
WF series	HWF,PWF,SWF,UWF,ZWF
WG series	EWG,AWG,BWG,NWG,HWG(single tube/double tube
WM series	EWM,AWM,BWM,NWM
Others	NMLC,HMLC,LTK48,LTK60,TBW,TNW,ATW,BTW,NTW,AQTK NXD3,NXC,T6H,SK6L146,TT46,TB56,TS116,CHD101

 

 

FAQ:

1,How long do diamond reamers typically last before needing replacement?
Reamer life depends on rock conditions, how long they are used each day and manufacturer quality, but on average a diamond reamer will last 300-1,000 hours of operational run time before needing replacement or resharpening.

2, What factors affect the lifespan of a diamond reamer?

Factors include the hardness of the formation, presence of abrasives, hours of use, operating pressure, reaming pressure, rotational speed, dressing frequency and operator skill in matching the right reamer to the conditions.
3,Can diamond reamers be repaired or do they need complete replacement?
Minor repairs through dressing of the cutter face are possible to expose fresh diamonds. But once the diamonds and matrix suffer major wear, replacement of the entire cutting structure is usually more cost effective than extensive rebuilding work.
4How are diamond reamers positioned and drilling started?
The reamer is attached to the drilling rig's drive shaft and lowered into position at the collar or end of the existing hole. Drilling fluid is applied and the reamer is then rotated and advanced into the rock face using hydraulic thrust from the rig to continuously ream the wall.
5What type of machine is needed to operate a diamond reamer?
Diamond reamers are used with heavy-duty hydraulic rock tunneling rigs or roadheaders that can provide both rotational torque and significant thrust pressures. They may also be used on drill rigs for smaller bore applications.

 

 

Product gallery

Packing and Shipping:

On site

Exhibition: