|Place of Origin:||China|
|Minimum Order Quantity:||negociated one|
|Packaging Details:||wooden box or plastic box|
|Delivery Time:||10-15 days|
|Payment Terms:||T/T, L/C, Western Union|
|Supply Ability:||10000 Piece/Pieces per Month|
|Model:||Reverse Circulation DTH Drilling Tool||Type:||Drilling Tool Parts|
|Machine Type:||Drilling Tool, Drilling Equipment||Processing Type:||Forging|
|Use:||Dth Drilling||Color:||As Customers' Requirements|
rock drill tools,
down the hole drilling tools
5 Inches Reverse Circulation DTH Drilling Tools , Rock Drill Steel And Bits
Introduction of Reverse Circulation Drilling
Reverse Circulation drilling, referred to as "Centre Sample Recovery" or "Dual Wall Drilling", employs a Dual Wall Pipe where the drilling medium, normally high pressure air,is passed between the outer and inner tubes down to the face of the drilling bit where
it is returned up the centre tube along with the sample cut by the drill bit.
The use and the advantages of the R.C. DTH Hammer:
1) No Contamination
The R.C. System collects sample through the recovery holes in the face of the drill bit immediately as the cuttings or sample is formed. The drilled sample does not have to travel the length of the hammer where contamination and loss of sample takes place.
2) Higher Production
In broken and fractured ground conditions, the R.C. wi ll often out perform the conventional hammer in terms of penetration rates.
3) Dry Sample
Even in certain water bearing stratas it is st ill possible to collect a dry sample because the cuttings (sample) are collected as they are formed through the face of the drill bit.
4) Higher Sample Recovery
Because the samp le is collected through the face of the drill bit there is no loss of sample when drilling through broken or fract ured ground. And since the bit matched to the chuck size, there is very little bypass of sample and recovery rates of up to 98%
are generally achievable.
Specifications of RC Reverse Circulation Hammers
|DTH hammer type||DTH345RC||DTH hammer type||DTH355RC||DTH365RC||DTH352RC|
|Length (less bit) mm||1020||Length (less bit) mm||1111||1250||1208|
|Weight(excluding bits) kg||94||Weight(excluding bits) kg||66.5||110||70|
|External diameter mm||Φ99||External diameter mm||Φ126||Φ146||Φ126|
|Hole range(mm)||Φ114-127||Hole range(mm)||Φ133-152||Φ155-190||Φ133-146|
upon the thread of the drill tube
upon the thread of the drill tube
|Working pressure||1.0-3.0Mpa||Working pressure||1.5-3.5Mpa||1.5-3.5Mpa||1.5-3.5Mpa|
|Impact rate at 1.7Mpa||30Hz||Impact rate at 2.4Mpa||35Hz||28Hz||35Hz|
|Recommended Rotation speed||25-40r/min||Recommended Rotation speed||25-40r/min||25-40r/min||25-40r/min|
MIROC® Rock Drilling Tools are Rock Drilling Tools Brand by KSQ Tecnologies (Beijing) Co. Ltd.
KSQ Technologies (Beijing) Co. Ltd. provides exceptional technical know-how in development, production, and application. The company has adopted advanced manufacturing processes to ensure high quality steels and tungsten carbide inserts for its rock drilling accessories. Its personnel understand clients’ drilling needs, and have the service skills to recommend the right drilling tools for the job. Its experienced product developers can also create custom tools. Furthermore, the company’s development team introduces innovative products each year – tools that are rigorously tested in the field and proven
to perform beyond industry expectations.
MIROC® Rock Drilling and Ground Support Tools include:
Plug Hole Rods
Tapered Drilling Tools
Extension Drilling Tools
Drifting and Tunneling Tools
Shank Adapters (Striking Bars)
Down-the-hole (DTH) Bits
Down-the-hole (DTH) Hammers
Contact Person: Mr. Yingkai Zhang
Tel: +86 18501231988