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| Categories | Reverse Circulation Hammer | 
|---|---|
| Brand Name: | ROSCHEN | 
| Model Number: | 4 1/2 | 
| Certification: | ISO | 
| Place of Origin: | CHINA | 
| MOQ: | Negotiable | 
| Price: | Negotiate | 
| Supply Ability: | 1000000 pcs | 
| Packaging Details: | steel bundle | 
| name: | Matrix Reverse Circulation Dual Tube Drill Rod | 
| type: | Reverse Circulation Drill Pipe | 
| series: | RC Drill Rods | 
| series no: | RC Drill pipe | 
| size: | 4 inch Double Wall Drill Pipes | 
| Item no: | Double Wall Drill Pipes | 
| Model: | Dual Wall HDD Drill Pipe | 
| Specifications: | 4 1/2 inch Double Wall Drill Pipes | 
| RC drill: | RC hammer drilling | 
| Use: | RC hammer drilling | 
| Company Info. | 
| ROSCHEN GROUP | 
| Verified Supplier | 
| View Contact Details | 
| Product List | 
Matrix Reverse Circulation Dual Tube Drill Rod for Surface Golden Mining Drilling
ABOUT OUR PRODUCTS
Roschen is the industry's only integrated drilling services and
products provider, combining 24-hour engineering excellence, global
manufacturing facilities and the most experienced drilling services
group in the business. Our customers rely on our unique ability to
develop, field test, and deliver any combination of drilling
consumables, capital equipment, and expertise direct to any corner
of the world.
REVERSE CIRCULATION DRILLING
To accomplish drilling project objectives within budget, reverse
circulation drilling offers a more cost effective drilling method
for assaying chip samples and getting preliminary geological data
prior to investing in detailed geological data from an exploration
coring program. Reverse circulation is also faster than coring
which means more holes drilled.
| Sizes | 3", 3 1/2", 4", 4 1/2", 75mm and 78mm | 
| Thread Types | Remet, Metzke, RRE, Westrod, LW, TS and other threads | 
| REVERSE CIRCULATION DRILL ROD SPECIFICATIONS | |||||||
| Thread Type | Remet | Remet | Remet | Metzke | Metzke | Matrix | Matrix | 
| Rod O.D. | 3 1/2" | 4" | 4 1/2" | 4" | 4 1/2" | 4" | 4 1/2" | 
| Outer Tube O.D. | 88.9mm | 101.7mm | 114.3mm | 101.7mm | 114.3mm | 101.7mm | 114.3mm | 
| Outer Tube I.D. | 81.8mm | 94.6mm | 107.2mm | 94.6mm | 107.2mm | 94.6mm | 107.2mm | 
| Outer Tube W.T. | 5.3mm | 7.1mm | 7.1mm | 7.1mm | 7.1mm | 7.1mm | 7.1mm | 
| Inner Tube O.D. | 38.1mm | 50.8mm | 63.5mm | 50.8mm | 63.5mm | 50.8mm | 63.5mm | 
| Inner Tube I.D. | 32.6mm | 45.3mm | 58mm | 45.3mm | 58mm | 45.3mm | 58mm | 
| Inner Tube W.T. | 5.5mm | 5.5mm | 5.5mm | 5.5mm | 5.5mm | 5.5mm | 5.5mm | 
| Spanner Flat | 90mm | 90mm | 90mm | 90mm | 90mm | 90mm | 90mm | 
| Weight 3.0m | 75kg. | 75kg. | 95kg. | 75kg. | 95kg. | 75kg. | 95kg. | 
| Weight 6.0m | 120kg. | 150kg. | 168kg. | 150kg. | 168kg. | 150kg. | 168kg. | 

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