Pr40 Reverse Circulation RC Drill Bits, Sandvik Pr54 RC Button Bits

• Customized: Customized
• Standard: BIN, JIS, AISI, API
• Length: Jobber-length
• Type: Core Drill Bit
• Material: Diamond
• Usage: Wood Drilling, Well Drilling, PCB Drilling, Metal Drilling, Masonry Drilling
• Model NO.: RC40
• Model: Down The Hole Hammer Bit
• Use: Down The Hole Drilling, DTH Drilling
• Name Item: Water Well Drilling Equipment
• Materials: High Manganese Steel
• Uses: Mineral Drilling, Exploration Core Drilling
• Tools: Down The Hole Drilling Tools
• Item: CIR, DHD, Ql, SD, Mission, Cop Series DTH Hammer
• China: China Reverse Circulation Drilling Process
• Name: Reverse Circulation Drill Pipe
• Item No: Reverse Circulation Drilling Method
• Transport Package: Wooden Box
• Specification: 45cm
• Trademark: ROSCHEN
• Origin: China
• HS Code: 843143210
• Production Capacity: 2000

Product Description

REVERSE CIRCULATION PERFORMANCE TOOLING         

Reverse Circulation (RC) drilling is used to collect rock samples quickly and efficiently using a large rotary drill and air compressor. The high speed and lower cost per meter of RC drilling makes it ideal for obtaining mineral samples in the early phases of an exploration project.



Reverse Circulation Drilling

Basics of Reverse Circulation Drilling

RC drilling uses rods with inner and outer tubes, the drill cuttings are returned to surface inside the rods. The drilling mechanism is a pneumatic reciprocating piston known as a hammer driving a tungsten-steel drill bit.

RC drilling utilises much larger rigs and machinery and depths of up to 500 metres are routinely achieved. RC drilling ideally produces dry rock chips, as large air compressors dry the rock out ahead of the advancing drill bit.

RC drilling is slower and costlier but achieves better penetration than RAB or air core drilling; it is cheaper than diamond coring and is thus preferred for most mineral exploration work.

Reverse circulation is achieved by blowing air down the annulus of the rod, the differential pressure creating air lift of the water and cuttings up the inner tube which is inside each rod. It reaches the deflector box at the top of the drill string then moves through a sample hose which is attached to the top of the cyclone.

The drill cuttings travel around the inside of the cyclone until they fall through an opening at the bottom and are collected in a sample bag. For any drill hole there will be a large number of sample bags, each one marked to record the location and drilling depth that the sample was obtained.

The collected series of sample bag cuttings are later taken for analysis to determine the mineral composition of the drill hole. The analysis results of each individual bag represents the mineral composition at a particular sample point in the drill hole. Geologists can then survey the drilled ground analysis and make decisions about the value of the overall mineral deposit.

For the supply of RC drilling rods and equipment please visit our sponsors, ROSCHEN GROUP LIMITED at roschen.en.made-in-china.com


We are a leading manufacturer of rock drilling tools, like DTH hammers and bits, DTH drill pipes, RC hammers and bits, tophammer button bits, coupling, cross bits, drill rods located in Germany, China(joint-venture).


Product specifications: PR40 RC Bits

Diameter		No x Button diameter mm		Button angle	Flusing holes	Shroud Dia mm	Weight(kgs)	Part No
mm	inch	Gauge Buttons	Front Buttons
124	4 7/8	8x14	8X13	35	2	122	14.3	PR40-124
127	5	8x14	8X14	35	2	125	14.7	PR40-127
133	5 1/4	8x16	10X14	35	2	131	15.2	PR40-133
138	5 4/9	8x16	6x16+3x14	35	2	136	15.8	PR40-138

ROSCHEN RC hammer bit technical data:

ROSCHEN Reverse Circulation Bits Specifications
RE531 RC bits
ROSCHEN Code:   ROS RC 30
Diameter		No x Button diameter mm		Button angle	Flusing holes	Shroud Dia mm	Weight (kgs)	Part No
mm	inch	Gauge Buttons	Front Buttons
86	3 3/8	6x12	4x12	35	2	84	4.2	RE531-86
89	3 1/2	8x12	8x12	35	2	87	4.3	RE531-89
95	3 3/4	8x12	8x12	35	2	93	4.6	RE531-95
102	4	8x12	8x12	35	2	100	4.9	RE531-102
RE004 RC bits
ROSCHEN Code:   ROS RC 40
Diameter		No x Button diameter mm		Button angle	Flusing holes	Shroud Dia mm	Weight (kgs)	Part No
mm	inch	Gauge Buttons	Front Buttons
114	4 1/2	8x14	6x14	35	2	112	11.5	RE004-114
118	4 5/8	8x14	6x14	35	2	116	11.7	RE004-118
121	4 3/4	8x14	6x14	35	2	119	12	RE004-121
127	5	8x14	8x14	35	2	125	12.4	RE004-127
RE542
ROSCHEN Code:   ROS RC 50
Diameter		No x Button diameter mm		Button angle	Flusing holes	Shroud Dia mm	Weight (kgs)	Part No
mm	inch	Gauge Buttons	Front Buttons
121	4 3/4	8x14	6x14	35	2	119	10.6	RE542-121
124	4 7/8	8x14	8x13	35	2	122	10.8	RE542-124
127	5	8x14	8x14	35	2	125	11	RE542-127
130	5 1/8	8x14	10x14	35	2	128	11.3	RE542-130
RE543
ROSCHEN Code:   ROS RC 50
Diameter		No x Button diameter mm		Button angle	Flusing holes	Shroud Dia mm	Weight (kgs)	Part No
mm	inch	Gauge Buttons	Front Buttons
124	4 7/8	8x14	8X13	35	2	122	10.8	RE543-124
127	5	8x14	8X14	35	2	125	11	RE543-127
130	5 1/8	8x14	10X14	35	2	128	11.3	RE543-130
133	5 1/4	8x16	10X14	35	2	131	11.8	RE543-133
RE545
ROSCHEN Code:   ROS RC 50
Diameter		No x Button diameter mm		Button angle	Flusing holes	Shroud Dia mm	Weight (kgs)	Part No
mm	inch	Gauge Buttons	Front Buttons
124	4 7/8	8x14	8X13	35	2	122	13.3	RE545-124
127	5	8x14	8X14	35	2	125	13.5	RE545-127
133	5 1/4	8x16	10X14	35	2	131	13.8	RE545-133
136	5 3/8	8x16	6x16+3x14	35	2	134	14.2	RE545-136
PR40 RC bit
ROSCHEN Code:   ROS RC 50
Diameter		No x Button diameter mm		Button angle	Flusing holes	Shroud Dia mm	Weight (kgs)	Part No
mm	inch	Gauge Buttons	Front Buttons
124	4 7/8	8x14	8X13	35	2	122	14.3	PR40-124
127	5	8x14	8X14	35	2	125	14.7	PR40-127
133	5 1/4	8x16	10X14	35	2	131	15.2	PR40-133
138	5 4/9	8x16	6x16+3x14	35	2	136	15.8	PR40-138
PR52 RC bit
ROSCHEN Code:   ROS RC 55
Diameter		No x Button diameter mm		Button angle	Flusing holes	Shroud Dia mm	Weight (kgs)	Part No
mm	inch	Gauge Buttons	Front Buttons
133	5 1/4	8x16	10x14	35	2	131	11.2	PR52-133
136	5 3/8	8x16	6x16+3x14	35	2	134	11.5	PR52-136
140	5 1/2	8x16	6x16+3x14	35	2	138	11.9	PR52-140
143	5 5/8	8x16	6x16+3x14	35	2	141	12.3	PR52-143
RE547 RC bit
ROSCHEN Code:   ROS RC 55
Diameter		No x Button diameter mm		Button angle	Flusing holes	Shroud Dia mm	Weight (kgs)	Part No
mm	inch	Gauge Buttons	Front Buttons
136	5 3/8	8x16	6x16+3x14	35	2	134	15.1	RE547-136
140	5 1/2	8x16	6x16+3x14	35	2	138	15.5	RE547-140
143	5 5/8	8x16	6x16+3x14	35	2	141	15.8	RE547-143
146	5 3/4	8x16	6x16+3x14	35	2	144	16.3	RE547-146
PR54
ROSCHEN Code:   ROS RC 55
Diameter		No x Button diameter mm		Button angle	Flusing holes	Shroud Dia mm	Weight (kgs)	Part No
mm	inch	Gauge Buttons	Front Buttons
136	5 3/8	8x16	6x16+3x14	35	2	134	18.2	PR54-136
140	5 1/2	8x16	6x16+3x14	35	2	138	18.5	PR54-140
143	5 5/8	8x16	6x16+3x14	35	2	141	18.8	PR54-143
146	5 3/4	8x16	6x16+3x14	35	2	144	19.2	PR54-146
Notes:
Metzke, Remet thread is available!
Any special size of Reverse Circulation bits will be available by requests.

Shank can be available:

1). 4'' RC Bits:Diameter (104mm-127mm); Shank type: RE004/RE004R;RE542
2). 5'' RC Bits:Diameter(113mm-146mm) ; Shank type: RE543,RE545,RE547;PR40,PR52,PR54; MX5456
3). 6'' RC Bits: Diameter(152-190mm); Shank type: RC62/RC62R; 
4). 8'' RC Bits: Diameter(190-250mm); Shank type: RC82/RC82R; 
5). 10'' RC Bits: Diameter(250-370mm); Shank type: RC100/RC100R. 

Other size can be upon to customer's requirements
   
We can also provide related products DTH hammers, ODEX system, symmetrix systems, slide block drilling systems, etc and DTH drilling pipes for various thread API REG, API IF, BECO, etc

Product photos



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 damagement 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.








FAQ


Q: Are you a manufacturer or trading company?
A: We are a specialized manufacturer.

Q: What are your main products, and used for?
A: Our products include core bit, PDC bit, reaming shell, core barrel, casing, drill rod, SPT equipment, Shelby sampler, drill rig and other drilling parts.
They are used for mineral exploration, geological drilling, geotechnical engineering and soil sampling.

Q: How about the delivery terms?
1. Payment: T/T, L/C, Western Union, Paypal, 30% deposit in advance and rest before delivery.
2. Min. order quantity: 1 piece.
3. Transportation: By DHL/TNT/Fedex express, air, sea, train.

Q: How about discount?

Q: Do you accept sample order?
A: Yes sure, please contact us for details.

Q: How about your after-sales service?
A: As a manufacturer, we offer promt technology support for all problems and questions. Besides, we accept goods return or replace for quality problem.

Q: How does your company control the quality?
A: Quality first. In order to guarantee high quality for our products, Roschen always makes a serious inspection for all products and raw materials in strict procedure. We have obtained certificate of ISO9001:2000 in 2004.
 


For more information, please contact:
                                                                    


ROSCHEN INC.
ROSCHEN GROUP LIMITED
ROSCHEN HOLDINGS LIMITED      
 
 
 
 
Website: http://roschen.en.made-in-china.com ; http://roschen.en.made-in-china.com