Exploration Core Drilling HQ3 NQ3 Drill Bit Extension Rod
 
Drill Bit Extension Rod Introduction
 
it Is uesd for water and gas exploring and injection in underground coal mine.It adopt special geological steel and advanced friction welding method with following feature :high strength, stable welding ,long working life ,ect.
 
Our thread drill rods are made of high-intensity alloy steel imported from Sweden. All the trails and threads are formed by high precision CNC machines. The thread is induced by induction hardening, then fast heating and cooling. The precision temperature controlled heat treatment equipment ensures the service life of the drill rod, improves the mechanical properties of the drill rod, Holistic carburization increases the carbon content in the outer layer of drill rod, and hardened outer steel body. The solid thread can fit perfectly with the inner wall of the drill bits,and complete various roadway tunneling, underground mining and open pit drilling task in complex rock and terrain rough drilling with high precision and high efficiency .
 
Drill Bit Extension Rod Specifications:
1. alloied material split inne tube
2. thru-wall heat treated tube body
3. ISO control process
4. Cold rolled
 
Drill Bit Extension Rod Size Available:
 
"Q" Series: BQ, NQ, HQ, and PQ.
"WJ" Design: AWJ, BWJ, NWJ, KWJ, HWJ
"W" Design: RW, EW, AW, BW, NW, HW
Metric Series: 33, 42, 50
ROSCHEN also can produce various sizes of casing tubes
 
Drill Bit Extension Rod Size Available:
 
"W" Design: RW,EW,AW,BW,NW,HW,PW,SW,UW,ZW/HWT,PWT
Metric Series: 46, 56,66,76,86,101,116,131,146
"X" Design: RX, EX, AX, BX, NX, HX, PX, SX, UX, ZX
All international standard sizes.
ROSCHEN produce a wide range of drilling tool including drill rod, wire line core barrel (AQ-PQ) and assemblies, synthetic diamond core bits, natural diamond surface-set core bit, PDC bits(core and non-coring),casing shoes, reaming shells, overshot, hoisting plug, etc.
 
 

 
 
FAQ
Terms & Conditions of Ordering:
Quality warranty:
Our products are made of high quality steel and all spares parts are inspected strictly before shipping. We have quickly responses for your complaint and suggestion.
Package:
Using ply-wooden cases and pallet for package to protect the products and avoid the damage during transportation. Also we can customize package according to your special requests.
Production time:
Generally need 15-25 days
Transportation:
By air, By Express or By sea according to your requests.
1. Methods of Payment:
T/T (Telegraphic Transfer) or Western Union or L/C at sight
2. Handling time for an order
Based on order quantity, normally it takes 20 days for production.
in 3 working days after receiving the advance payment
3. Shipping way
Sample order: we suggest Courier express like DHL/UPS/TNT/FEDEX or by air
Bulk order: we suggest by air or by sea.
4. Quality Control
We have our own experienced QC.
There will be strict inspection and testing for every order before shipping out.
5. After Services:
a. Our sales team will response for your question within 24 hours (Holidays Excluded)
b. Technical Support will be available in any time
6. Quality & Service:
A. There will be strict inspection and testing for every order before shipping out.
B. Our sales team and Technical Support will response for your question within 24 hours through skype: ROSCHEN.TOOL and WhatsApp/Wechat: +86-13764195009
C. Free replacement will provide once the failure confirmed caused or our product quality; Not satisfied with a refund.
 
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