76mm Symmetric Casing System by DTH for Mining and Well Drilling

• After-sales Service: 3 Month
• Warranty: 3 Month
• Brand: Prodrill
• Processing Type: Forging
• Name: Symmetric Casing System
• Casing O.D: 76mm
• Model NO.: 76
• Casing Wall Max.: 8mm
• Ring Bit I.D.: 41mm
• Ring Bit O.D: 84mm
• Pilot Bit. O.D: 59mm
• Thread Type: R32,R38,T38 Thread
• Transport Package: Wood Package
• Specification: SGS, CE, ISO9001
• Trademark: PRODRILL
• Origin: China
• HS Code: 84314320
• Production Capacity: 10000pec/Months

Product Description

Description:

Rock drilling tools manufacturer ProDrill: Symmetric drilling system is designed to drill and case a hole simultaneously through unstable ground conditions. The driver bit incorporated with a satisficial ring or reusable ring makes a full face head design which significantly improves the penetration rate and hole straightness of drilling. The internal flushing grooves together with the built-in casing shoes gives a good seal to the button of the drilling hole, and thus minimizing the disruption of the surrounding of the drill hole.

RoBit SOD 76 Symmetix Casing System with rock drill bits: Ring bit and Pilot bit by Top Hammer


Application Range: suitable for drilling water wells, geothermal wells, short mircopiles, medium mini-type grouting hole of building, dam and harbor project.
1. Ring bit and casing shoe assembly is welded to casing prior to drilling. Lock the assembly into pilot bit with hammer. The pilot bit's upper shoulder engages the shoulder of the casing shoe.
2. Hammer's percussive energy is transferred through the pilot and ring bits, crushing rock . Part of impact energy advances casing.
3. On completion of drilling and casing , the drill string with pilot bit is retrieved by a slight reverse rotation to unlock the bayonet coupling . The ring bit stays in the hole , and can be recovered only if the casing is retrieved
4. Drilling continues to the desired depth in the bedrock using a conventional drilling.

Rock Drill Bits Advantages:

1.Full face head design for faster penetration and straighter hole less torque is required

2.Can drill in vertical, horizontal or any direction

3.Minimize disruption to the drilled hole

4.Varied ring bit diameters to suit different casing requireme

Concentric Casing System by DTH Hammer Technical Data:

 

 

Application:

FOREPOLING

Forepoling,also known as tube umbrella,tunnel umbrella, is an application used to strengthen tunnel roof in broken rock condition.Drilling system consists of casing tubes which are drilled through the overburden as an umbrella and filled with grouting.ProDrill symmetric casing system allows easy driving of the casing tubes into the ground with low torque demand.

ProDrill symmetric casing overburden drilling system mostly used in forepoling are ProDrill+88,9/8, ProDrill 114,3/10,and ProDrill 139,7/10.

 

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 15 years.
2.    We have advanced technology and equipment.
3.    Our technician has more than 15 year's professional working experience.
4.    Rock drilling tools are exported throughout the world. Main market: Norway, Turkey, USA, Canada, Australia, Brazil, Uruguay,Philippines, Thailand, India, etc.