Atlas Copco RC45 RC Rotary Hammer RC6a RC6ar (RC) Reverse Cycle Rotary Hammer for Golden RC Sampling Drilling

Reverse Circulation Hammers & BitsRoschen offers a complete line of Reverse Circulation hammers and spare parts, which can replace Roschen series Reverse Circulation Hammers & Bits. Hammers are available in a wide range of sizes and styles, to provide maximum performance and longevity on all RC drilli

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Reverse Circulation Hammers & Bits

Roschen offers a complete line of Reverse Circulation hammers and spare parts, which can replace Roschen series Reverse Circulation Hammers & Bits. Hammers are available in a wide range of sizes and styles, to provide maximum performance and longevity on all RC drilling jobs.
Reverse Circulation hammers are designed with an inner sample tube that extends through the center and into the top of the hammer bit. The RC hammer exhausts the air between the bit splines and over the face of the bit. This forces the sample into the recovery holes in the face of the bit, through the center of the hammer and upward through the drill rod inner tubes to the surface for collection. The use of a shroud or collar is required when a RC hammer is used, to help direct the return air and cuttings up through the face of the bit.
Conventional DTH hammers can also be used in RC drilling operations, but increase the potential for sample loss and contamination. A conventional DTH hammer is used in conjunction with a cross-over sub located between the hammer and drill rod. The sample travels from the face of the bit up the outside of the hammer and into the cross-over sub. 
The sub directs the sample up the center of the dual wall rods and to the surface.


We offer a full range of reverse circulation down the hole hammers and bits, to suit all depths and ground conditions.

Due to its high-quality sample results, and speed of operation for shallower holes, reverse circulation drilling is becoming increasingly popular around the globe. In fact, it's the most widely accepted chip sampling method. This is largely due to our innovative designs, and we're continuing to develop the capabilities of this valuable sampling method. Partner with Roschen for your reverse circulation down hole hammer drilling.         

1. High penetration rates in all rock conditions
2. Quality samples from areas of lost circulation
3. Large, uncontaminated sample return
4. Increased longevity means lower cost per meter
5. The option of diamond-enhanced carbide bits for deep and abrasive drilling conditions, with no bits sharpening required

RC Hammer range
Hammer modelHole range
RE53186 mm - 102 mm (3 ⅜ in. - 4 in.)
RE542118 mm - 133 mm (4 ⅝ in. - 5 ¼ in.)
RE543124 mm - 133 mm (4 ⅞ in. - 5 ¼ in.)
RE545127 mm - 140 mm (5 in. - 5 ½ in.)
RE120127 mm - 140 mm (5 in. - 5 ¾ in.)
RE040127 mm - 140 mm (5 in. - 5 ½ in.)
RE052133 mm - 143 mm (5 ⅜ in. - 5 ⅝ in.)
RE054137 mm - 146 mm (5 ⅜ in. - 5 ¾ in.)
RC6A/RC6AR hammer technical data: 

Length (less bit)1320mm
Weight (less bit)110.0kg
External diamaterφ146mm
Bit shankRC6A/RC6AR
Hole rangeφ152-φ190
Connection threadUpon to customers' request
Working pressure1.5Mpa-3.5Mpa
Air consumption1.7 Mpa 20 m³/min
 2.4 Mpa 26 m³/min
 3.0 Mpa 35 m³/min

ROSCHEN RC hammer technical data:
ROSCHEN RC Hammers Specifications
Hammer SizeHammerBit ShankROSCHEN CodeHole Range (mm)External Diameter (mm)Length (without bit) mmWeight (N.W.) kgsConnection ThreadWorking Pressure
3"RE531RE531ROS RC 3084-100811069293" Remet1.0-3.0Mpa
3"RE035RE035ROS RC 3584-105851075353" Remet1.0-3.0Mpa
4 1/2"RE004RE004ROS RC 40111-1271071252523.5"-4" Remet 4" Metzke1.0-3.0Mpa
4 1/2"RE540RE540ROS RC 45111-1271071252523.5"-4" Remet 4" Metzke1.0-3.0Mpa
5"RE040RE040ROS RC 50113-130109.51191573.5"-4" Remet 4" Metzke1.0-3.0Mpa
5"RE542RE542ROS RC 50113-130109.51191573.5"-4" Remet 4" Metzke1.0-3.0Mpa
5"RE543RE543ROS RC 50120-1351161191623.5"-4" Remet 4" Metzke1.0-3.0Mpa
5"RE545RE545ROS RC 50122-135117.51261654"-4.5"Remet 4"-4.5" Metzke1.5-3.5Mpa
5 1/2"RE547RE547ROS RC 55130-146124.51270714.5"Remet 4.5" Metzke1.5-3.5Mpa
5 1/2"RE052RE052ROS RC 55130-146124.51270714.5"Remet 4.5" Metzke1.5-3.5Mpa
5 3/4"RE054RE054ROS RC 55130-146124.51270854.5"Remet 4.5" Metzke1.5-3.5Mpa
5 3/4"RE140RE140ROS RC 55130-146124.51270854.5"Remet 4.5" Metzke1.5-3.5Mpa
5"PR40PR40ROS RC 50124-142120.5136280.53.5"-4.5" Remet 3.5"-4.5" Metzke1.5-3.5Mpa
5 1/2"PR52PR52ROS RC 55126-142121122768.54"-4.5"Remet 4"-4.5" Metzke1.5-3.5Mpa
5 1/2"PR52RPR52/PR52RROS RC 55130-1461241225654"-4.5"Remet 4"-4.5" Metzke1.5-3.5Mpa
5 1/2"PR54PR54ROS RC 55135-150130129484.54.5"Remet 4.5" Metzke1.5-3.5Mpa
6"MX5456MX5456ROS RC 60136-1501321362904.5"Remet 4.5" Metzke1.5-3.5Mpa
6"~6 1/2"RC62/RC62RRC62/RC62RROS RC 65152-1901461320110As Request1.5-3.5Mpa
8"RC82/RC82RRC82/RC82RROS RC 80190-2501801395185As Request1.5-3.5Mpa
10"RC100/RC100RRC100/RC100RROS RC 100250-3702401528328As Request1.5-3.5Mpa
Metzke, Remet thread is available!
Any special type shank of RC Hammer will be available by requests.

RC bits sizes available:


1) 3" RC bits diameter 84mm-100mm shank RE531

2) 4'' RC Bits:Diameter 104mm-127mm; Shank type: RE004/RE004R;RE542

3) 5'' RC Bits:Diameter 113mm-146mm; Shank type: RE543,RE545,RE547;PR40,PR52,PR54; MX5456

4) 6'' RC Bits: Diameter 152-190mm; Shank type: RC62/RC62R; 

5) 8'' RC Bits: Diameter190-250mm; Shank type: RC82/RC82R; 

6) 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 and bits, ODEX system, symmetrix systems, slide block drilling systems, etc and DTH drilling pipes for various thread API REG, API IF, BECO, etc    


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?
A: Price is based on products and order quantity.

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:

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