• Model NO.：219mm symmetrix
• Shank：DHD360 DHD 360
• Application 1：Geothermal Well Drilling, Water Well Drilling
• Application 2：Foundation Work, Anchoring
• Rock Formation：Unconsolidated
• Transport Package：Plywood Box
• Specification：219mm symmetrix - DHD 360
• Trademark：SINODRILLS
• Origin：China
• HS Code：8207199000
• Production Capacity：10000,Month

Basic Info.

Model NO. 219mm symmetrix Shank DHD360 DHD 360 Application 1 Geothermal Well Drilling, Water Well Drilling Application 2 Foundation Work, Anchoring Rock Formation Unconsolidated Transport Package Plywood Box Specification 219mm symmetrix - DHD 360 Trademark SINODRILLS Origin China HS Code 8207199000 Production Capacity 10000/Month

Product Description

 
 

INODRILLS Symmetric overburden casing drilling system

Symmetric is a system comprised of an ingeniously simple concentric method of drilling through overburden with casing.  Symmetric can drill straight holes at any angle (including horizontal) and to depths beyond 100 meters. Working together as one efficient drill bit, the components are made up of:

•   A pilot bit with large internal flushing holes and external flushing grooves.

•  Symmetrical ring bit (reamer) with internal bayonet coupling

•  Casing shoe for driving of casing.

The pilot bit is attached to any common DTH hammer shank or top hammer rod thread.
The casing shoe is welded to the casing. The pilot bit and ring bit are locked together by the bayonet coupling. They drill a hole large enough to allow the casing to be pulled into the hole. The pilot bit and ring bit rotate with the drill string while the casing shoe and casing do not rotate. When required depth is reached, the pilot bit is unlocked by a slight reverse rotation of the drill string. The drill string and pilot bit will be retrieved through the casing, the ring bits and casing shoe will be left in the hole for permanent casing system. Also the ring bits and casing can be retrievable through the special design for ring bits and casing shoe. We can manufacture both permanent Symmetric and Retrievable Symmetric system which can meet your comprehensive requirement.
The below size of Symmetric systems which are available, and the special design is upon customer's requirement:
Symmetric 114, Symmetric 127, Symmetric 140, Symmetric 146, Symmetric 168,
Symmetric 178, Symmetric 195, Symmetric 219, Symmetric 243, Symmetric 273.

 

 Application

- Geothermal well drilling
- Water well drilling
- Pipe roofing(umbrella arch drilling)
- Foundation work
- Anchoring etc.

A multitude of applications, From anchoring to slope stabilization, from micropiling to curtain grouting, from tunnel forepoling to marine piling applications. Wherever the ground is unstable, drilled casings offer the basis of an excellent solution.

                                     Product specification


Please contact us for further information .
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 Buyer's feedback


 

Related products 

Hammer size	Shank type	Recommended DTH bits diameter	Working pressure
3.5"/3" DTH hammer	COP32, COP34, DHD3.5, MISSION30	90mm - 105mm	8-30 bar
4" DTH hammer	DHD340, QL40, MISSION40, SD4, TD40, COP44, COP44 GOLD, COP42	110mm - 130mm	8-30 bar
5" DTH hammer	DHD350, QL50, MISSION50, SD5, TD50, COP54, COP54 GOLD	134mm - 152mm	8-30 bar
6" DTH hammer	DHD360, QL60, MISSION60, SD6, TD60, COP64, COP64 GOLD, COP66	152mm - 203mm	8-30 bar
8" DTH hammer	DHD380, QL80, MISSION80, SD8	203mm - 305mm	8-30 bar
10" DTH hammer	SD10, Numa100	240mm - 311mm	17-24 bar
12" DTH hammer	DHD112, SD12, QL120, Numa120	311mm - 445mm	17-24 bar

What we do
 

Down The Hole rock drilling tools	Top hammer rock drilling tools	Self drilling anchor system	Drag bits
-  DTH hammers -  DTH bits -  DTH drill pipes -  Odex and Symmeric drilling	-  Taper drill bits and rods -  Threaded buttons bits and drill rods -  Shank adapters -  Couplings	- Threaded hollow anchor bars. -  Accessories ( drill bit, coupling, nut, plate, centralizer etc.)	-  Step drag bit (3 wings, 4 wings ) -  Chevron drag bit (3 wings, 4 wings )
Application	Application	Application	Application
Mining, quarry, water well drilling, geothermal drilling, construction foundation work etc.	Mining, quarry, construction foundation work	tunnel roof support, slop stability, Soil nailing, rock bolting, micropile etc.	mining, water well drilling, geothermal drilling etc.

 Our company
 

Our Workshop
 

FAQ
  Q1: Are you a manufacturer? 
A1: Yes, we own 2 plants to manufacture various drilling products, including TH (top hammer) drilling products, DTH drilling products, self-drilling anchor systems and drag bits.
       So we are a one-stop supplier of full range of rock drilling products.
 
Q2: What qualifications do you have? 
A2: Till 2016, we have following qualifications:
-  ISO 9001:2008 quality management system;
-  3AA2 credit rating by Dun & Bradstreet;
-  Honoring Contract and Keeping Promise Enterprise by AIC;
-  EC examination certificate for self-drilling anchor bars;
-  2 invention patents & 6 utility patents.
  
Q3: Where did you export and what was your annual export amount? 
A3: Till 2020 we have exported to 105 countries and our average annual export amount within recent 3 years is 30 million USD.
 
Q4: What kind of payment terms do you offer and what is your best payment terms? 
A4: We offer different payment terms, including T/T, D/A, D/P, L/C and O/A, etc. Our best payment terms is 120 days after shipping date for our distributors and sole distributors.
 
Q5:Do you offer warranty on your products? 
A5: Yes, for different products we offer different warranty that cover all manufacturing defects in materials and workmanship. The longest period of warranty is 2 years after shipping date.
 
Q6: Do you offer OEM service? 
Q6: Yes, we offer OEM service if you have regular requirement.