Ore Mining Reverse Circulation Hammer Performance Tooling Engineered by Boart Longyear
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Ore Mining Reverse Circulation Hammer Performance Tooling Engineered by Boart Longyear
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Features
Basic Infomation
Place of Origin: Germany
Brand Name: ROSCHEN
Certification: ISO,CE
Model Number: RC 50
High Light:

reverse water hammer

,

button bits rock drilling

Payment & Shipping Terms
Packaging Details: Wooden box
Supply Ability: 700 sets
Specifications
Name: Reverse Circulation Hammer
Use: Ore Mining, Geothermal Drilling
Application: Coal Mining, Ore Mining, Exploration Core Drilling
Usage: Africa Mining
Drills: Reverse Circulation Drilling Companies
Drilling: Reverse Circulation Drilling
Hammers Bits: Reverse Circulation Hammers And Bits
RC Hammer: Reverse Circulation Hammer Lubricant
Hammer: RC Hammers Reverse Circulation
Supplier: Boart Longyear Drilling Company
Item: Reverse Circulation Drilling Process
Series: Reverse Circulation RC Hammers
Model: Reverse Circulation Hammers And Bits
Numa Hammer: Numa RC Hammers
Functions: RC Drilling (reverse Circulation) With Down The Hole Hammer
RC Hammer Catalogue: Reverse Circulation Hammer Catalogue
Product Description

Reverse Circulation Hammer Performance Tooling engineered by Boart Longyear

 

 

REVERSE CIRCULATION DRILLING HAMMERS

 

Reverse Circulation RC drilling hammers and hammer drill bits provide outstanding performance along with outstanding reliability and simplicity. Our reverse circulation hammers are suitable for any exploration and grade control process to obtain an accurate sample with no contamination. RC drilling hammers can in most instances carry out continuous sample collection in a fraction of the time necessary with conventional or wireline coring.



WHAT IS RC DRILLING?
 

Reverse circulation (RC) drilling uses a bit attached to a down-hole hammer to produce a hole. Unlike diamond drilling, RC drilling produces samples of rock cuttings rather than a sample of rock core. The down-hole hammer is powered by compressed air, which also acts as the medium bringing the drill cuttings up to surface.
 

 

Traditionally, RC drill rigs have been known as powerful, heavy truck- or track-mounted machines. Such machines are unsuitable for remote exploration work because of the difficulties and costs associated with moving the drills to site. In Canada, Northspan has changed this by being a front-runner when it comes to designing RC drills, which can be moved to remote drill sites with light helicopters or fixed-wing aircraft.

 

 

RELIABLE SAMPLES
 

 

RC drilling today produces samples of high quality and reliability. Dual-pipe RC drilling utilizes double drill rods where air is passed down the hole through the outside annulus and into the hammer. Drill cuttings are cleared from the bit by the air and travel up through the centre tube of the drill rods remaining free from contamination.
 

There are two main types of RC drilling systems: the centre-sample system and the conventional cross-over system. Using the centre sample system (see schematic), drill cuttings liberated by the bit travel up directly through holes in the bit face and into the centre tube of the drill rods. This method produces an accurate and uncontaminated sample. As a result, RC drilling results are successfully used in compliant resource calculations worldwide. 


 

Reverse circulation (RC) Hammer Quick Reference
Size RC Hammer Model ROSCHEN RC Hammer Model
3" RC Hammer RE035 ROS RC 35
4-4 1/2" RC Hammer RE004 ROS RC 40
RC Hammer RE540 ROS RC 45
5" RC Hammer RE040 ROS RC 50
RC Hammer RE542 ROS RC 50
RC Hammer RE543 ROS RC 50
RC Hammer RE545 ROS RC 50
5-5 1/2" RC Hammer RE052 ROS RC 55
RC Hammer RE547 ROS RC 55
5 1/2-5 3/4" RC Hammer RE054 ROS RC 55
RC Hammer RE140 ROS RC 55

 


 

ROSCHEN RC Hammers Specifications
Hammer Size Hammer Bit Shank ROSCHEN Code Hole Range (mm) External Diameter (mm) Length (without bit) mm Weight (N.W.) kgs Connection Thread Working Pressure
3" RE531 RE531 ROS RC 30 84-100 81 1069 29 3“ Remet 1.0-3.0Mpa
3" RE035 RE035 ROS RC 35 84-105 85 1075 35 3“ Remet 1.0-3.0Mpa
4 1/2" RE004 RE004 ROS RC 40 111-127 107 1252 52 3.5"-4" Remet 4" Metzke 1.0-3.0Mpa
4 1/2" RE540 RE540 ROS RC 45 111-127 107 1252 52 3.5"-4" Remet 4" Metzke 1.0-3.0Mpa
5" RE040 RE040 ROS RC 50 113-130 109.5 1191 57 3.5"-4" Remet 4" Metzke 1.0-3.0Mpa
5" RE542 RE542 ROS RC 50 113-130 109.5 1191 57 3.5"-4" Remet 4" Metzke 1.0-3.0Mpa
5" RE543 RE543 ROS RC 50 120-135 116 1191 62 3.5"-4" Remet 4" Metzke 1.0-3.0Mpa
5" RE545 RE545 ROS RC 50 122-135 117.5 1261 65 4"-4.5"Remet 4"-4.5" Metzke 1.5-3.5Mpa
5 1/2" RE547 RE547 ROS RC 55 130-146 124.5 1270 71 4.5"Remet 4.5" Metzke 1.5-3.5Mpa
5 1/2" RE052 RE052 ROS RC 55 130-146 124.5 1270 71 4.5"Remet 4.5" Metzke 1.5-3.5Mpa
5 3/4" RE054 RE054 ROS RC 55 130-146 124.5 1270 85 4.5"Remet 4.5" Metzke 1.5-3.5Mpa
5 3/4" RE140 RE140 ROS RC 55 130-146 124.5 1270 85 4.5"Remet 4.5" Metzke 1.5-3.5Mpa
5" PR40 PR40 ROS RC 50 124-142 120.5 1362 80.5 3.5"-4.5" Remet 3.5"-4.5" Metzke 1.5-3.5Mpa
5 1/2" PR52 PR52 ROS RC 55 126-142 121 1227 68.5 4"-4.5"Remet 4"-4.5" Metzke 1.5-3.5Mpa
5 1/2" PR52R PR52/PR52R ROS RC 55 130-146 124 1225 65 4"-4.5"Remet 4"-4.5" Metzke 1.5-3.5Mpa
5 1/2" PR54 PR54 ROS RC 55 135-150 130 1294 84.5 4.5"Remet 4.5" Metzke 1.5-3.5Mpa
6" MX5456 MX5456 ROS RC 60 136-150 132 1362 90 4.5"Remet 4.5" Metzke 1.5-3.5Mpa
6"~6 1/2" RC62/RC62R RC62/RC62R ROS RC 65 152-190 146 1320 110 As Request 1.5-3.5Mpa
8" RC82/RC82R RC82/RC82R ROS RC 80 190-250 180 1395 185 As Request 1.5-3.5Mpa
10" RC100/RC100R RC100/RC100R ROS RC 100 250-370 240 1528 328 As Request 1.5-3.5Mpa
Notes:
Metzke, Remet thread is available!
Any special type shank of RC Hammer will be available by requests.


 

When using the conventional cross-over system , cuttings first travel up around the bit before entering the centre tube through cross-over slots. This method is rapid, cost-effective and particularly suited for first pass exploration drilling.


In a number of geological scenarios, the large volume of sample collected by RC systems can be a significant advantage. Exploration projects dealing with a “nugget effect” (for example, coarse gold or diamond projects) can often benefit from a larger diameter drill hole. Northspan generally drills holes with a diameter ranging from 3 ⅝” to 4 ½” (92 mm to 114 mm). The sample recovery from a 3 ⅝” (92 mm) diameter hole is approximately 11 lbs/ft (16.4 kg/m) depending on rock type.
 

RC is a drilling method widely used around the world. The method is unbeatable in areas where water is scarce or expensive, such as Australia and Western Africa (and, for the same reason, in northern Canada).



HIGH RATE OF PENETRATION
 

A big advantage of RC is its high rate of penetration. Penetration rates often exceed 80 m per shift depending on ground conditions. The speed of drilling can often mean big cost savings compared to slower drilling methods.
 

GOOD IN BAD GROUND
 

RC drilling is relatively insensitive to ground conditions, which may be difficult or slow to penetrate using other methods. Dual-pipe RC was originally developed as a method to drill “nightmare” geological formations (such as permafrost, glacial till, broken rock, etc.) where conventional drilling methods were costly and ineffective.
 

RC drill cuttings are transported to surface inside the centre tube of the dual pipe. Because of this sample recovery is usually very good with high recoveries of both fines and clays.
 

ENVIRONMENTALLY SOUND
 

Reverse circulation drilling has several environmental advantages. First and foremost, RC mostly requires no water for rock drilling. This is a benefit in areas with limited or sensitive water supply.
 

In addition, frozen water sources and waterlines can make winter drilling both tricky and expensive, if not impossible. In certain areas, like the arctic tundra, environmental permitting is easier for winter drilling when the ground is frozen and unlikely to be disturbed. Light-weight RC makes winter drilling in the arctic a viable option.
 

Why not carry out land-based winter drilling programs as opposed to more expensive heli-supported summer programs?


 

 

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FAQ



Terms & Conditions of Ordering:



Quality warranty:
Our products are made of high quality steel and all spares parts are inspected strictly before shipping. We have quickly responses for your complaint and suggestion.


Package:
Using ply-wooden cases and pallet for package to protect the products and avoid the damage during transportation. Also we can customize package according to your special requests.


Production time:
Generally need 15-25 days


Transportation:
By air, By Express or By sea according to your requests.



 


1. Methods of Payment:
T/T (Telegraphic Transfer) or Western Union or L/C at sight


2. Handling time for an order
Based on order quantity, normally it takes 20 days for production.
in 3 working days after receiving the advance payment


3. Shipping way
Sample order: we suggest Courier express like DHL/UPS/TNT/FEDEX or by air
Bulk order: we suggest by air or by sea.


4. Quality Control
We have our own experienced QC.
There will be strict inspection and testing for every order before shipping out.


5. After Services:
a. Our sales team will response for your question within 24 hours (Holidays Excluded)
b. Technical Support will be available in any time


6. Quality & Service:
A. There will be strict inspection and testing for every order before shipping out.
B. Our sales team and Technical Support will response for your question within 24 hours through skype: ROSCHEN.TOOL and WhatsApp/Wechat: +86-13764195009
C. Free replacement will provide once the failure confirmed caused or our product quality; Not satisfied with a refund.

 


For more information, please contact:




ROSCHEN INC.
ROSCHEN GROUP LIMITED
ROSCHEN HOLDINGS LIMITED

Skype: ROSCHEN.TOOL , ROSCHEN_GROUP

WeChat: +86-137 6419 5009 ; +86-135 8585 5390

WhatsApp: +86-137 6419 5009 ; +86-135 8585 5390

Email: roschen@roschen.com ; roschen@roschen.net

Website: http://www.roschen.com ; http://www.roschen.net

http://www.roschen.cn ; http://www.roschendrill.com

http://www.roschenmining.com ; http://www.roschendrilling.com

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Get in touch with us
Contact Person : Mr. Bill, George, Michael
Tel : 13764195009
Fax : 86-021-54380177
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