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1.Specification of rock reamer 
| Bite size | Bit type | |
| Inch | mm | |
| 26 | 660.4 | 117, 127,217,317,517, 537, 617,637 |
| 28 | 711.2 | 117, 127,217,317,517, 537, 617,637 |
| 30 | 762.0 | 117, 127,217,317,517, 537, 617,637 |
| 32 | 812.8 | 117, 127,217,317,517, 537, 617,637 |
| 36 | 914.9 | 117, 127,217,317,517, 537, 617,637 |
| 10-40 inch can be custom as customer's requirements | ||
Product parmeters:
| IADC | WOB | RPM | Applicable Formations | ||||||
| (KN/MM) | (r/min) | ||||||||
| (Bit Dia) | |||||||||
| 116 117 | 0.35~0.8 | 150~80 | Very soft formations with low compressive strength and high drillability,such as clay,mudston,chalk etc. | ||||||
| 126 127 | 0.35~0.9 | 150~70 | Soft formations with low compressive strength and high drillability,such as mudstore,gypsum,salt,softshale.soft limestone,ect. | ||||||
| 136 137 | 0.35~1.0 | 120~60 | Soft to mesium soft formations with low compressive strength and high drillability.such as medium soft shale,hard gypsum,medium soft limestone.medium soft sandstone soft formation with harder nterbeds,ect. | ||||||
| 216 217 | 0.4~1.0 | 100~60 | Medium hard formations with high compressive strength,such as medium soft shale,hard gypsum,medium soft limestone,medium soft sandstone,soft formation with harder interbeds ect. | ||||||
| 246 247 | 0.4~1.0 | 80~50 | Medium hard formations with high compressive strength,such as abrasive shale.limestone,sandstone,dolomite,hard gypsum,marble,ect. | ||||||
| 417 437 | 0.35~0.9 | 150~70 | Very soft formations with low compressive strength and high drillability,such as clay,mudston,chalk,gypsum,salt,soft shale,soft limestone,etc. | ||||||
| 447 | |||||||||
| 517 527 | 0.35~1.0 | 140~60 | Soft formations with low compressive strength and high drillability,such as mudstore,gypsum,salt,soft shale.soft limestone,ect. | ||||||
| 537 547 | 0.45~1.0 | 120~50 | Soft to medium formations with low compressive strength,such as medium soft shale,medium soft limestone,medium soft sandstone,medium formation with harder and abrasiver interbeds,ect. | ||||||
| 617 627 | 0.45~1.1 | 90~50 | Medium hard formations with high compressive strength,such as hard shale,limestone,sandstone,dolomite,ect. | ||||||
| 637 | 0.5~1.2 | 80~40 | Hard formations with high compressive strength,such as sandstone,limestone,dolomite,hard gypsum,marble,ect. | ||||||
2.Product pictures of hddrock reamer/hole opener
3.Packaging & Shipping
Packing:wooden case(standard export packing)
Transportation type:by sea,by air,by train ect as your requirement
3.Exhibition show
4.Company introduction
Established in 2005, Cangzhou JW Petroleum Machinery Co.,Ltd is a professional technology-oriented manufacturer specialized in the production downhole motor and some other trenchless drilling tools. Which located at the center of Beijing-Tianjin-Hebei-Shandong-Henan-Region which is adjacent to National Expressway No.106,166km away from Beijing, 110km away from Tianjin and 35km away from Baiyangdian, the Pearl of Huabei Area. More convenient transport, faster delivery, With over 10 years experiences, our mission at JW is to maintain at the top in product integrity and customers satisfaction worldwide. We hope you consider us for your future needs.
With professional producing technology and honest management, JW people will create brilliant future with new and old customers together.
5.Contact US
All sizes and IADC code can be customized.
If you need,welcome to consult us more details.
Suppliers with verified business licenses
Audited Supplier 
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