Dia 168mm Concentric Overburden Underreaming System with Wings

• Customization: Available
• Brand: Prodrill
• Air Pressure: 20 Bar
• Model NO.: dia. 168mm
• Color: Gold, Red
• Hammer Type: 3inch, 4inch
• Outer Dia. of Casing Tube: 114 ~ 168mm
• Material: Alloy Steel
• Inner Dia. of Casing Tube: 101 ~ 148mm
• Wall Thichness of Casing Tube: 6.5 ~ 10.5mm
• Processing Type: Forging
• Transport Package: Wood Package
• Specification: SGS, CE, ISO9001
• Trademark: PRODRILL
• Origin: China
• HS Code: 84314320
• Production Capacity: 10000pec/Months

Product Description

1.Specific heat treatment standards 
2.Premium hardened steel alloy 
3.High-grade cemented tungsten carbide buttons.
Certification: GB/T 19001-2008/ISO 9001: 2008
 
Concentric (or Symmetric or Symmetrix) Overburden Casing Drilling System With Ring Bits Permanent




1.      Introduction and Description:
What is Concentric (or Symmetric or Symmetrix) Overburden Casing Drilling System With Ring Bits Permanent?
Description:

Product Name:	Concentric (or Symmetric or Symmetrix) Overburden Casing Drilling System With Ring Bits --- Permanent
Type	Concentric casing system
Design Principles	Make the casing follow easy and the equipment and operation simple
Material:	carbide
MOQ:	5pcs
Application	It is recommended to drill in rock formation where contains some ovals and fractures.
Advantages - Outstanding	1) The stable and reliable working performance and the less vibration of drill rig. 2) Flexible to open and close.
Certificate	ISO9001 and SONCAP

 
2. Technical Specification

A	B	C	D	E	F	G
Outer Dia. of Casing Tube	Inner Dia. of Casing Tube	Reamed Dia.	Min.Inner Dia.of Casing Shoe	Hammer Type	Drill Pipes	Max. Outer Dia. of Normal Bit
mm				inch	mm
108	93-99	118	86	3.5"	76	77
114	101-103	127	91		76	82
127	114-116	136	101		76	92
140	124-127	152	117	4"	76	105
146	127-132	154	117		76	105
168	149-155	184	140	5"	76, 89	125
178	159-165	194	150		76, 89	140
193	173-180	206	164	6"	89, 114	150
219	199-206	234	184	6" or 8"	89, 114	165
244	224-231	260	210	8" or 10"	114	190
273	251-257	305	240		114, 127	220
323	301-310	348	284		127	255
406	382-388	440	364	10" or 12"	140	340
457	433-439	488	413	12"	140	385
508	484-490	538	464			440
558	534-540	590	514	16"	140	485
610	586-592	642	566	18"	168	540

3. How to order:
Ring Bit + Pilot Bit = Assembly or     
Ring Bit + Pilot Bit + Casing Shoe = Assembly.
You can also buy separately: Ring Bit or Pilot Bit or Casing Shoe.
 
2. Other rock drill: besides, we also supply following rock drilling tools:
Concentric (or Symmetric or Symmetrix) Overburden Casing System:
with ring bits, with wings and with slide blocks.

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Ps.: Others about Prodrill Equipment Co., Ltd
1. Prodrill Main Products as below: 
1) Rock drill:
Handheld rock Drill (Jackhammer): Y10, Y18, Y20, Y24, Y26, TY24C, etc;
Airleg rock drill: YT24, YT28, etc;
Gasoline rock drill: YN27
2) Drill rod: Taper rod (hex. 22 * 108mm)
3) Drill bit: Taper button bit, Taper chisel bit, Taper cross bit; Thread button bit (Top hammer); DTH Hammer and DTH bit; Overburden Drilling System
4) Splitter: Handheld stone splitter (or shims and wedges or plug and feather), G10 pneumatic splitter; Hydraulic Splitter
5) Breaker: Hydraulic Breaker, Pneumatic Breaker G10, TPB, etc;
6) Splitting or Cracking Powder for Construction/ Quarry/ Rock: Expansive mortar Soundless Cracking Agent; High Range Soundless Cracking Agent

2. Advantages:
Compared the Rock Drilling Tools with the oversea brands, our advantages are bellowing:
a. Our products can match over 95% against the original products
b. Price are competitive against the famous brands and best quality against the small factory
 
3. About Us:
1.    Our factory has been specialized in manufacturing drilling tools and spare parts for over 10 years.
2.    We have advanced technology and equipment.
3.    Our technician has more than 13 year's professional working experience.
4.    Rock drilling tools are exported throughout the world. Main market: Norway, Turkey, USA, Canada, Australia, Brazil, Uruguay, Iran, Philippines, Thailand, India, etc.

4. Welcome your question and inquiry, Contact: Tina Xu