Concentric Overburden Drilling System with Rings

• Customization: Available
• Customized: Customized
• Length: Request
• Model NO.: GL112-406
• Material: Tungsten Carbide
• Usage: Well Drilling, Mining
• Inserts Design: Spherical; Ballistic; Parabolic
• Use: Well Drilling,Coal Mining,Quarry Drilling
• Product Name: Casing System
• Face Design: Flat;Convex;Concave
• Package: Wooden Box or as Customers Inquire
• Casing Od.: 355mm
• Transport Package: Wooden Case
• Specification: Forging
• Trademark: Glorytek
• Origin: Beijing, China
• Production Capacity: 2000 Pieces Per Month

Product Description

Product Description

A.Drill in overburden unstable rock
B.One step to drill and follow casing
C.Flexible to open or close
 

1. When drilling starts, the pilot bit drives the casing shoe and casing tube.

 

2. When reaching the bedrock, reverse rotation of the tools and pull the pilot bit out from the hole.

 

3. Pour in concrete or move to the next construction procedure.

 

4. Use conventional tools to drill to the desired depth.

Concentric Overburden Drilling System With Rings
Overburden drilling systems are widely used in a variety of applications from well drilling and minipilling to rock anchoring and site investigation. 
This is easily removed to allow for bit are sharpening or replacement. It is the most economical solutions because its ingenious reaming wing the bit is retrievable can be used at the next hole.

>>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.
 

Product Parameters

Model	Outer Dia. of Casing Tube(mm)	Inner Dia. of Casing Tube(mm)	Wall thickness of casing(mm)	Guide device Max. Outer Dia(mm)	Reamed Dia(mm)	Max. Outer Dia. of Normal Bit
GL360-219	219	119	10	197	234	185
GL380-245	245	225	10	222	260	210
GL380-273	273	253	10	251	305	240
GL380-325	325	305	10	302	350	282
GL112-355	355	325	10	322	380	305
GL112-406	406	382	12	380	432	365

 

Detailed Photos

Feature

 

1. Deal with straight, oblique hole and other angle holes
2. Hardening treatment of the part's surface:with longer operating life and excellent anti-wear properties
3. High grade tungsten carbide inserts
 

Related product

-Middle-low/high air pressure DTH hammers & bits
-Big hole high air pressure DTH hammer using in water well, oil, gas and construction drilling.
-Eccentric overburden drilling system
-Hole opener bit
-Shank adapter, coupling sleeves and all kinds of adapters

 

Company Profile

 

Glorytek Industry (Beijing)Co.,Ltd.,

Located in Beijing,China, is an integrated corporation specialized in manufacturing and exporting top quality drilling equipment and drilling parts for decades. We are supported and assisted by a highly experienced team of designers and engineers that enable us to complete all the assigned projects successfully as per the specified requirement from our clients.

 

Our products are widely used in the scope of mining, water well drilling and exploration, anchor grouting project, side slope protection engineering, oil and gas engineering,underwater rock drilling & blasting operations of seaport channel, hydropower project, national defense projects ect.