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3" RC hammers model RE531

3" RC hammers model RE531. RC hammers and bits are used in hole drilling in mines, hydrology and water well, geothermal well, geothermal air conditioning well, geologic exploration, complicated gravel stratum, etc. Especial suitable for complicated formation (Formation loose, difficult to drilling and unstable of hole wall), exhausting for deep hole, environment protection.

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  • 3" RC hammers model RE531
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RC hammers model RE531



RC hammers and bits are used in hole drilling in mines, hydrology and water well, geothermal well, geothermal air conditioning well, geologic exploration, complicated gravel stratum, etc 

Especial suitable for complicated formation (Formation loose, difficult to drilling and unstable of hole wall), exhausting for deep hole, environment protection.


1 DTH Reverse circulation Hammers for product photos

Sandvik-5-5-1-2-Inch-Re052-Re547-Reverse-Circulation-RC-Hammer



    Higher Production
In broken and fractured ground conditions, the R.C. will often out perform the conventional hammer in terms of penetration rates.

    Dry Sample
Even in certain water bearing stratas it is still possible to collect a dry sample because the cuttings(sample) are collected as they formed through the face of the drill bit.

    Higher Sample Recovery
Because the sample is collected through the face of the drill bit there is no loss of sample when drilling through broken or fractured ground. And since the bit matched to the chuck size,there is very little bypass of sample and recovery rates of up to 98% are generally achievable.

3" R.C.Hammers Item Description Weight(Kg) Part Number
1 Top Sub 3.76 RC3-E531-01
2 "O"Ring 0.01 RC3-E531-02
3 Adaptor Screen 1.85 RC3-E531-03
4 "O"Ring 0.01 RC3-E531-04
5 Sample Tube 1.97 RC3-E531-05
6 Circlip 0.04 RC3-E531-06
7 "O"Ring 0.01 RC3-E531-07
8 "O"Ring 0.01 RC3-E531-08
9 Distributor 0.37 RC3-E531-09
10 Plunger 0.08 RC3-E531-10
11 "O"Ring 0.01 RC3-E531-11
12 Spring 0.10 RC3-E531-12
13 Mount Sample Tube 0.49 RC3-E531-13
14 Lnner Cylinder 3.40 RC3-E531-14
15 Piston 4.69 RC3-E531-15
16 Piston case 9.20 RC3-E531-16
17 Seal cover 0.02 RC3-E531-17
18 Bush Drive Sub 1.03 RC3-E531-18
19 Bit Retaining Ring 0.08 RC3-E531-19
20 "O"Ring 0.01 RC3-E531-20
21 Shroud 0.45 RC3-E531-21
22 Drive Sube 1.60 RC3-E531-22
23 Drill Bit 4.20 RC3-E531-23


Length(exclusive bit) Weight(exclusive bit) External Diameter Bit Shank Hole Range Connection Thread
1069mm 29.0kg 81mm RE531 84-100 3"remet
Working Pressure Impact rate at 2.4Mpa Recommended rotation speed Air Consumption
1.7Mpa 2.4Mpa 3.0Mpa
1.0-3.0Mpa 30Hz 25-40r/min 7m³/min 10m³/min 14m³/min

03 packing site for reverse circulation drill bits


02 dth drill bits for production site



Bestlink Factory

Xiamen Bestlink Factory Co., Ltd  is  committed  to  provide  the  best  drilling  and  cutting machine,  tools and accessories products in marble and granite stone quarrying,  as well as in civil engineering application, especial demolition project. it is now a leading manufacturer of cutting and drilling equipment for the extraction of marble, granite  and ornamental stones in china.  

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