RE542-127mm RC drill bits RC drilling tools Reverse circulation RE542-133mm RC bits
Bit shank: RE542
Brand: Win Drill
Origine: China
Length (without bit): 1191mm
Top sub thread: Remet 3.5″ Metzke4″
External diameter: 109.5mm
Packaging: Ply-wood box
Delivery Time: 5-30 days
Sample Order: Yes
OEM Service: Yes
Model: RE542 RC drill bits
RE542-127mm RC drill bits
RC drilling tools RE542-133mm
Reverse circulation RE542 RC hammer and bits
RE542-127mm RC drill bits RC drilling tools Reverse circulation RE542-133mm RC bits
Win Drill main product:
1. Down the hole(DTH) drilling tools,
2. Reverse circulation(RC) drillinng tools
3. Casing system/Simultaneously drilling
(Eccentric, Concentric-symmetric, Super jaw, Silde bolck etc…)
4. Rotary drilling (Tricone bit, PDC bit, Drag bits,Steel tooth bit etc…)
5. Top hammer rock drilling (Bench drilling, Drifting and tunneling, MF rod, shank adapter etc…)
6. Small hole drilling tools(Tapered drilling, plug hole integral drill rod, integral drill rod)
What is Reverse Circulation drilling?
Reverse Circulation (RC) drilling is one of the three main types of mineral exploration techniques offered by Win Drill. Used to compile sample rock cuttings, the drilling process relies on hollow inner tubes to transport samples back to the surface in a continuous flow, using compressed air. Originally introduced to Australian in the 1970s, RC drilling is a preferred method for initial mineral exploration. Suitable for diverse terrain, and depths of up to 500-metres.
How does RC Drilling work?
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.
Technical data of RC4.5-RE542 RC hammer
| Weight (Without bit) |
External diameter | Bit shank | Hole range | Connection thread | ||
| 51kg | Φ109.5mm | RE542 | Φ113-Φ130mm | 3.5″-4″ Remet 4″ Metzke |
||
| Impact rate at 2.4Mpa | Speed recommended | Pull fore recommended | Reference air consumption (m³/min) | |||
| 17Bar | 24Bar | 30Bar | 35Bar | |||
| 35Hz | 25-40r/min | 8kN | 12 | 18 | 26 | / |
RE542 Reverse circulation drill bit and shroud
| Diameter | No.xButton diameter(mm) | Button angle | Flusing holes | Shroud diameter | Weight | ||
| mm | inch | Gauge | Front | kg | |||
| 121 | 4 3/4 | 8xφ14 | 6xφ14 | 35° | 2 | 119 | 10.6 |
| 124 | 4 7/8 | 8xφ14 | 8xφ13 | 35° | 2 | 122 | 10.8 |
| 127 | 5 | 8xφ14 | 8xφ14 | 35° | 2 | 125 | 11 |
| 130 | 5 1/8 | 8xφ14 | 10xφ14 | 35° | 2 | 128 | 11.3 |
