About us:
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 Changsha, Hunan, China.
We have rich experience in this field of DTH hammers and bits for 20 years.
Owing to high quality, professional serivce and competitive price, we have gotten good reputation from our customers from all over the world, such as France, Spain, Italy, South Africa, Iran, Malaysia, Australia ad etc.
Product specifications: RC Bits
| External diameter |
Bit shank |
Hole range |
Connection thread |
| 107mm |
RE004 |
Ø111mm- Ø127mm |
3.5"-4" Remet 4" Metzke |
| 120.5mm |
PR40 |
Ø124mm- Ø142mm |
3.5"-4" Remet 3.5"-4" Metzke |
| 100mm |
RE004/RE004R |
Ø104mm- Ø120mm |
3.5"-4" Remet 4" Metzke |
| 107mm |
42T |
Ø111mm- Ø127mm |
3.5"-4" Remet 4" Metzke |
| 99mm |
HRC45 |
Ø114mm- Ø127mm |
Upon the thread of the drill tube |
| 121mm |
PR52 |
Ø126mm- Ø142mm |
4"-4.5" Remet 4"-4.5" Metzke |
| 126mm |
PR52 |
Ø133mm- Ø146mm |
Upon the thread of the drill tube |
| 124mm |
PR52/PR52R |
Ø130mm- Ø146mm |
4"-4.5" Remet 4"-4.5" Metzke |
| 130mm |
PR54 |
Ø135mm- Ø150mm |
4.5" Remet 4.5" Metzke |
| 126mm |
HRC55 |
Ø133mm- Ø152mm |
Upon the thread of the drill tube |
| 146mm |
RC62/RC62R |
Ø152mm- Ø190mm |
Upon the thread of the drill tube |
| 146mm |
HRC62 |
Ø155mm- Ø190mm |
Upon the thread of the drill tube |
| 109.5mm |
RE542 |
Ø113mm- Ø130mm |
3.5"-4" Remet 4" Metzke |
| 116mm |
RE542 |
Ø120mm- Ø135mm |
3.5"-4" Remet 4" Metzke |
| 117.5mm |
RE545 |
Ø122mm- Ø135mm |
4"-4.5" Remet 4"-4.5" Metzke |
| 124.5mm |
RE547 |
Ø130mm- Ø146mm |
4.5" Remet 4.5" Metzke |
| 132mm |
MX5456 |
Ø136mm- Ø150mm |
4.5" Remet 4.5" Metzke |
Shank can be available:
Specification for RC hammers:
1) 3" RC hammers: RE531 connection thread 3" Remet
2) 3.5" RC hammers: RC3.5-Y connection thread 3" Remet
3) 4'' RC hammers: RE004 connection thread 3.5"/4" Remet; 4" Metzke
4) 4.5" RC hammers: RE542/RE543 connection thread 3.5"/4" Remet; 4" Metzke
5) 5'' RC hammers:RE545/PR40 connection thread 3.5"/4.5" Remet; 3.5"/4.5" Metzke
6) 5.5'' RC hammers:PR52/RE547/PR54 connection thread 4.5" Remet; 4.5" Metzke
7) 6'' RC hammers: RC62/RC62R
Specification for RC bits:
1) 3" RC Bits: Dia. 86mm-102mm shank RE531
2) 4'' RC Bits: Dia. 114mm-127mm Shank type: RE004
3) 4.5" RC Bits: Dia. 121mm-133mm Shank type: RE542, RE543
4) 5'' RC Bits: Dia. 124mm-138mm Shank type: RE545, PR40
5) 5.5" RC Bits: Dia. 133mm-159mm Shank type: PR52, RE547, PR54, M5456
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
