Efficient Flushing System Suitable for Both Surface and Underground Drilling T2101 Diamond Reamer

• Type: Core Drill
• Usage: Coring
• Certification: CE, ISO
• Application: Reaming
• Industry: Geological Survey
• Payment Term: Tt or LC
• Model NO.: AQBQPQNQHQNTWHTWNQ3HQ3PQ3
• 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:

 Some more details about diamond reamers in drilling conditions:

1. Reaming Shell Alignment: Proper alignment of the reaming shell is crucial for effective drilling. Misalignment can lead to uneven wear on the diamonds, reduced cutting efficiency, and increased vibration. It is important to ensure that the reaming shell is aligned with the drill string and core barrel to maintain drilling accuracy and maximize performance.

2. Reaming Shell Connection: The reaming shell is connected to the drill string using threaded connections or other secure attachment mechanisms. It is essential to ensure proper connection and tightness to prevent any slippage or detachment during drilling. Regular inspection of the connection points is necessary to identify and address any potential issues.

3. Reaming Shell Pressure: The pressure applied during reaming affects the cutting efficiency and the rate of diamond wear. Optimal pressure depends on factors such as the hardness of the rock formation, the type of diamonds used, and the desired drilling speed. Proper monitoring and adjustment of the pressure help maintain efficient cutting and extend the life of the reaming shell.

4. Reaming Shell Orientation: The orientation of the reaming shell during drilling can impact the drilling efficiency and the quality of the borehole. The reaming shell should be positioned to ensure even contact with the borehole wall, avoiding excessive tilting or angling. Proper orientation helps achieve uniform cutting and a smooth borehole surface.

5. Cooling and Lubrication: Cooling and lubrication are essential for maintaining the performance and longevity of the diamond reamer. Adequate flushing of drilling fluid through the reaming shell helps cool the diamonds, remove debris, and reduce friction. Monitoring the flow and quality of the drilling fluid is important to ensure effective cooling and lubrication.

6. Reaming Shell Inspection and Maintenance: Regular inspection of the reaming shell is necessary to identify any signs of wear, damage, or performance issues. This includes checking the condition of the diamonds, the integrity of the metal body, and the overall functionality of the reaming shell. Cleaning, sharpening, or replacing the diamonds as needed helps optimize performance and extend the lifespan of the reaming shell.

7. Reaming Shell Selection: The selection of a diamond reamer depends on several factors, including the drilling objectives, rock formation characteristics, drilling equipment, and budget constraints. Consulting with industry experts or suppliers can help in choosing the most suitable reaming shell based on these factors. Factors to consider include diamond quality, cutting efficiency, durability, and cost-effectiveness.

8. Reaming Shell Performance Monitoring: Monitoring the performance of the reaming shell during drilling operations is important for assessing its effectiveness and identifying any issues. Parameters such as drilling speed, cutting efficiency, torque, vibration levels, and core recovery rates can be monitored to evaluate the performance of the reaming shell and make any necessary adjustments.

9. Training and Operator Competence: Proper training of drilling operators is crucial for the effective use of diamond reamers. Operators should be familiar with the equipment, drilling techniques, and best practices for reaming operations. Ongoing training and skill development help ensure safe and efficient drilling practices.

These additional details provide further insight into the various aspects of diamond reamers in drilling conditions. By considering these factors and implementing best practices, drilling professionals can optimize the performance of diamond reamers and achieve successful drilling outcomes.

 

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, What is the average drilling rate of a diamond reamer?
Typical penetration rates range from 0.5 to 3 meters per hour, depending on the rock formation hardness and mix. Competent granite may only allow 10 cm/hr while soft limestone could reach 3 m/hr. Rates are highly application specific.
2,What applications do diamond reamers have in tunneling, mining, etc.?
Common uses include tunnel boring machine muckless leading-edge reaming, shaft sinking, hard rock gas and mining exploration, foundation grouting bores, dam construction grouting, microtunneling, pipe jacking, and specialized mining applications like raising.
3,How can reamer selection be optimized for different rock types?
Choosing a reamer style matched to anticipated lithology optimizes performance. Segmented reamers generally work best in hard, abrasive rock. Matrix or impregnated cutters suit mixed, fractured strata. TCI/PDC hybrids work well across varying geology. Button inserts suit shaley, friable ground.
4,Is pre-grouting the hole advised before reaming?
For shafts and tunnels susceptible to groundwater inflow or stability issues, pre-grouting the borehole with cementitious grout before reaming can strengthen the cavity wall and reduce water ingress risks that slow advancement rates.
5,What are some signs that indicate a reamer needs replacing?
Signs include a 30-50% drop in penetration rate, excessive ground engagement sounds/vibrations, overheating or smoking of the bit, fractured or loose cutting structure, and excessive wear flat spots exposing the steel body rather than intact diamonds.
6,What tooling is needed for reamer installation and removal?
Specialty wrenches and hoists are needed to screw/unscrew threaded tool joints and quickly change out heavy reamers at the rig. Pull-out equipment like spinpullers expedite removal. Safety slings secure the assembly during breakdown and assembly.

 

 

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