Whdrill RE531 / RE004 / RE542 / RE543 / RE545 /RE547 / PR40 / PR52 / PR52R / PR54 / PR54R / RC45 / RC50 Reverse Circulation(RC) Drill Bits,Reverse Circulation (RC) Drill Bits are essential tools for cutting rock, commonly known as “Centre Sample Recovery” or “Dual Wall Drilling.” This innovative drilling method utilizes a dual wall pipe system where high-pressure air is passed between the outer and inner tubes, delivering the drilling medium to the bit face. The rock cuttings are then returned u
The Reverse Circulation (RC) Drill Bits are essential tools for cutting rock, commonly known as “Centre Sample Recovery” or “Dual Wall Drilling.” This innovative drilling method utilizes a dual wall pipe system where high-pressure air is passed between the outer and inner tubes, delivering the drilling medium to the bit face. The rock cuttings are then returned up the center tube, allowing for efficient sample collection.
Product Parameters and Features
- Sizes Available: RE531, RE004, RE542, RE543, RE545, RE547, PR40, PR52, PR52R, PR54, PR54R, RC45, RC50.
- Bit Shank: RC/RE.
- Rock Hardness: Suitable for soft, medium hard, and hard rock applications.
- Quality and Durability: The MIRACLE Reverse Circulation Drilling Products are gaining popularity worldwide due to their high-quality sample results and long-term, low-maintenance endurance.
- Environmental Considerations: These tools are designed to convey all cuttings up the center of the hammer and drill string, ensuring safe collection at the surface in an environmentally conscious manner.
Key Features
- High-Toughness Carbide Teeth: Engineered with a high wear-resistant formula (including tantalum), resulting in a broken teeth rate of less than 0.2%.
- High-Strength Alloy Steel Body: The trouser body undergoes advanced heat treatment, achieving a broken trouser body rate of less than 0.1%.
- Advanced Manufacturing: Utilizes CNC processing and alloy tooth assembly technology to minimize tooth loss to less than 0.1%.
- Stability in Complex Formations: Maintains wall stability in complex and leakage formations.
- High Drilling Efficiency: Effectively removes rock dust and flakes, enhancing drilling performance.
- Versatile Applications: Tested for use in challenging conditions, with various carbide designs and grades available for different ground conditions.
- Single-Piece Sample Tube Assembly: Simplifies the collection process.
- Energy Efficiency: The Reverse Circulation Drilling DTH hammer is designed to save energy consumption.
Specifications
| Type |
Drill Handle |
Hole Range (mm) |
Outer Diameter (mm) |
Length (without position) (mm) |
Weight (kg) |
Connection Thread |
Work Pressure |
| RE531 |
RE531 |
84-100 |
81 |
1069 |
29 |
3 inch reload |
1.0-3.0 MPa |
| RE004 |
RE004 |
111-127 |
107 |
1252 |
52 |
3.5 "-4" Remet / 4 "Metzke |
1.0-3.0 MPa |
| RE542 |
RE542 |
113-130 |
109.5 |
1191 |
57 |
3.5 "-4" Remet / 4 "Metzke |
1.0-3.0 MPa |
| RE543 |
RE543 |
120-135 |
116 |
1191 |
62 |
3.5 "-4" Remet / 4 "Metzke |
1.0-3.0 MPa |
| RE545 |
RE545 |
122-135 |
117.5 |
1261 |
65 |
4 "-4.5" Remet / 4 "-4.5" Metzke |
1.5-3.5 MPa |
| RE547 |
RE547 |
130-146 |
124.5 |
1270 |
71 |
4.5 “Remet / 4.5” Metzke |
1.5-3.5 MPa |
| PR40 |
PR40 |
124-142 |
120.5 |
1362 |
80.5 |
3.5 "-4.5" Remet / 3.5 "-4.5" Metzke |
1.5-3.5 MPa |
| PR52 |
PR52 |
126-142 |
121 |
1227 |
68.5 |
4 "-4.5" Remet / 4 "-4.5" Metzke |
1.5-3.5 MPa |
| PR52R |
PR52R |
130-146 |
124 |
1225 |
65 |
4 "-4.5" Remet / 4 "-4.5" Metzke |
1.5-3.5 MPa |
| PR54 |
PR54 |
135-150 |
130 |
1294 |
84.5 |
4.5 “Remet / 4.5” Metzke |
1.5-3.5 MPa |
| RC45 |
RC45 |
130-146 |
124.5 |
1298 |
71 |
4.5 “Remet / 4.5” Metzke |
1.5-3.5 MPa |
| AD670 |
AD670 |
135-150 |
132 |
1339 |
90 |
4.5 “Remet / 4.5” Metzke |
1.5-3.5 MPa |
Remarks:
- 3" RC drill bit: diameter (86mm-102mm), shank (RE531).
- 4" RC drill bit: diameter (114mm-127mm), shank (RE004, RE004R).
- 4.5" RC drill bit: diameter (121mm-133mm), shank (RE542, RE543).
- 5" RC drill bit: diameter (113mm-146mm), shank (RE545, PR40).
- 5.5" RC drill bit: diameter (133-146mm), shank (RE547, PR52, PR54, RC45, AD670).
- Other sizes are available upon customer request. Customization is acceptable.
