Reverse Circulation RC Hammer 3 Inch 4 Inch 4 1/2 Inch With Outstanding Reliability
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Reverse Circulation RC Hammer 3 Inch 4 Inch 4 1/2 Inch With Outstanding Reliability
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Features
Basic Infomation
Place of Origin: Germany
Brand Name: ROSCHEN
Certification: ISO,CE
Model Number: RC 50
High Light:

button bits rock drilling

,

mincon hammers

Payment & Shipping Terms
Packaging Details: Wooden box
Supply Ability: 700 sets
Specifications
Name: Reverse Circulation Hammer
Application: Coal Mining, Ore Mining, Exploration Core Drilling
Drills: Reverse Circulation Drilling Companies
RC Hammer: Reverse Circulation Hammer Lubricant
Size: 3" 4-4 1/2"
Advantage: Outstanding Reliability
Product Description

Reverse Circulation RC Hammer 3 Inch 4 Inch 4 1/2 Inch With Outstanding Reliability

 

Reverse Circulation Hammer Description

 

The on-board compressor delivers power to a pneumatic reciprocating piston. The piston, in turn, drives a tungsten-steel drill bit which is purpose designed to be able to crush hard rock.

Similar to air core drilling, drill cuttings are returned to surface inside rods. We achieve this through the use of dual wall drill rods: an outer drill rod with an inner tube. When compressed air is blown through the rod, the volume displaces the air, lifting the samples to the surface.

Once cuttings reach a diverter at the top of the hole, they’re moved through a hose and around the cyclone, which slows the sample down. From the cyclone the sample goes over a splitter that delivers a percentage of the entire sample into a sample bag. The exploration drilling team then collect the samples aligned to the hole depth and lay them out for the client to log, and then transport to the lab for assay.

 

Reverse Circulation Hammer Parameters

 

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.

 

Reverse Circulation Hammer Details


Reverse Circulation RC Hammer 3 Inch 4 Inch 4 1/2 Inch With Outstanding Reliability 0

 

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. Roschen 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.

Reverse circulation 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

Reverse circulation 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.

Reverse circulation 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.

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