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Changsha Sollroc Engineering Equipments Co., Ltd

  • China,Changsha ,Hunan
  • Verified Supplier
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China Concave Face Diameter 216mm 8 1/2'' DTH Drill Bits
China Concave Face Diameter 216mm 8 1/2'' DTH Drill Bits

  1. China Concave Face Diameter 216mm 8 1/2'' DTH Drill Bits
  2. China Concave Face Diameter 216mm 8 1/2'' DTH Drill Bits
  3. China Concave Face Diameter 216mm 8 1/2'' DTH Drill Bits

Concave Face Diameter 216mm 8 1/2'' DTH Drill Bits

  1. MOQ: 1 piece
  2. Price: Negotiable
  3. Get Latest Price
Payment Terms T/T,
Supply Ability 10000 pieces/month
Delivery Time 18 working days
Packaging Details Cartons + ply wood case (no plastic)
Application Quarrying, construction, civil engineering, mining,
Usage mining, water well drilling, geothermal drilling
Product name SD8 DTH Bit
Rock formation Granite, limestone, quartz, etc
shank SD8
Advantage Hign Abrasion Resistance
Color Black or as request
Size 8 1/2''
Bit diameter 216mm
Rock hardness Granite, limestone, quartz, etc
Machine type Drilling Tool,Drilling Equipment,Downhole Tools,Mining machine parts
Use Well Drilling,Ore Mining,Coal Mining,Coal/Ore Mining,quarry
Brand Name SOLLROC
Model Number SD8
Certification SGS
Place of Origin China

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  1. Product Details
  2. Company Details

Product Specification

Payment Terms T/T, Supply Ability 10000 pieces/month
Delivery Time 18 working days Packaging Details Cartons + ply wood case (no plastic)
Application Quarrying, construction, civil engineering, mining, Usage mining, water well drilling, geothermal drilling
Product name SD8 DTH Bit Rock formation Granite, limestone, quartz, etc
shank SD8 Advantage Hign Abrasion Resistance
Color Black or as request Size 8 1/2''
Bit diameter 216mm Rock hardness Granite, limestone, quartz, etc
Machine type Drilling Tool,Drilling Equipment,Downhole Tools,Mining machine parts Use Well Drilling,Ore Mining,Coal Mining,Coal/Ore Mining,quarry
Brand Name SOLLROC Model Number SD8
Certification SGS Place of Origin China
High Light 8 1/2'' DTH Drill BitsDiameter 216mm DTH Drill BitsConcave Face dth hammer bits

Concave Face 216mm 8 1/2'' Black Color DTH Drill Bit For Mining

 

Product description

Penetraton rates with down-the-hole hammers are directly proportional to air pressure and, therefore, increasing the pressure will increase the drilling speed. Modern valveless hammers are products of precision engineering and are of a strong robustdesign with few internal parts making them economically attractive and easy to service. Air pressure is applied alternatively to both ends of the hammer piston by means of a system of ports and channels in the piston and cylinder to change the direction of the air. The valveless hammer operating cycle is described in the previous pages. DTH hammers are primarily percussion tools and penetrate more by shattering materials than by tearing it. The same air which passes through the hammer causing the piston to reciprocateand strike the bit also serves to expel cuttings from the bore hole and therefore maximumutilisation of the air is achieved.

 

SD8 216mm 8 1/2'' DTH Drill Bit overview

Bit Diameter    216mm 8 1/2''
No.* Button Dia. mm     Gauge Buttons    10*18mm
    Front Buttons      8*18mm + 6*16mm
Weight (kg)     51.2

 

SD8 series DTH bit overview

Diameter Button Configure Dia*qty. Bit design

Weight

(kg)

Metric Inch Guage button Front button
203mm 8'' 18mm*10 18mm*8+16mm*5 Concave face 40.1
216mm 8 1/2'' 18mm*10 18mm*8+16mm*6 Concave face 44.3
219mm 8 5/8'' 18mm*10 18mm*8+16mm*6 Concave face 44.8
229mm 9'' 18mm*12 16mm*12+16mm*7 Concave face 46.4
235mm

9 1/4''

18mm*12 16mm*12+16mm*7 Concave face 47.4
245mm  9 5/8'' 19mm*12 16mm*12+16mm*8 Concave face     51.5


Product Advantages

1.  1. High grade tungsten carbide inserts

2. Bit bodies manufactured from high grade steel and processed using state-of-the-art CNC machinery and heat treatment
3.Multiple shank and face designs Various face and spline configurations
4.Perfect after-sales service. Free replacement is provided if there is quality problem with our products..

 

Face shape Features

Concave Face

1. Capable of drilling straighter holes in medium to hard rock which is broken or less consolidated

2. Offers high penetration rate in the above stated rock conditions

3. Has excellent air flushing characteristics

4. Predominant face style for majority of drilling conditions

Flat Face

1. Have a superior performance in hard, abrasive and broken rock conditions

2. They however have a slower penetration rate in comparison to a concave face bit

Convex Face

1. This face has been designed to offer high penetration rate in soft rock such as shale, limestone etc

2. They are recognized for having excellent capability for drilling into moderately consolidated rock conditions

 

Structure picture

 

Product application

At present, DTH drilling tool is widely used in underground mining, quarries, hydraulic and Hydro-Power Engineering, water well drilling, Mineral exploration, anchoring hole drilling, geothermal engineering, Subway excavation, another civil engineering.

DTH is one of the most efficient ways of drilling rock, using a rapid hammer action to break the rock into sizeable chips which are then evacuated from the bore hole by the air exhausted from the DTH Hammer. The technique provides fast drilling of accurately aligned, straight and clean holes in most ground conditions.

 

Company informaiton

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.

Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory
  • Business Type:

    Manufacturer,Exporter

  • Year Established:

    2006

  • Total Annual:

    10000000-50000000

  • Employee Number:

    600~700

  • Ecer Certification:

    Verified Supplier

Sollroc, with more than 10 years of experience, is one of the prefessional manufacturer and supplier of high performance rock drilling tools like, DTH hammers and bits, RC hammers and bits, ODEX system, symmetrix system, DTH drill rods and top hammer drilling tools, our tools are widely used in di... Sollroc, with more than 10 years of experience, is one of the prefessional manufacturer and supplier of high performance rock drilling tools like, DTH hammers and bits, RC hammers and bits, ODEX system, symmetrix system, DTH drill rods and top hammer drilling tools, our tools are widely used in di...

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Get in touch with us

  • Reach Us
  • Changsha Sollroc Engineering Equipments Co., Ltd
  • No55. Jiucaiyuan road, Furong District, Changsha, Hunan,China
  • https://www.dth-tools.com/

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