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Hunan New Diamond Construction Machinery Co., Ltd.
Hunan New Diamond Construction Machinery Co., Ltd.
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Mining Concentric Drilling System

Hunan New Diamond Construction Machinery Co., Ltd.
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Hunan New Diamond Construction Machinery Co., Ltd.
City: Yueyang
Province/State: Hunan
Country/Region: China
Tel: 86-731-89708248
Contact Person:
Mr rick liao

Mining Concentric Drilling System

Brand Name : New Diamond
Model Number : Eccentric Overburden Drilling Equipment
Certification : API
Place of Origin : Hunan, China (Mainland)
MOQ : Negotiable
Price : Negotiable
Payment Terms : L/C, T/T, Western Union
Supply Ability : According to order quantity
Delivery Time : 5-8 work days
Packaging Details : Carton packaging and wooden box packing
Type : Overburden drilling system
Machine Type : Drilling Equipment
Material : Carbon Steel, high quality alloy steel
Processing Type : Forging
Use : Mining
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Description


NEW DIAMOND Eccentric overburden casing drilling system:


Eccentric casing drilling bit is the most economical solutions because its ingenious reaming wing the bit is retrievable can be used at the next hole.This is particularly design for shallow holes, as is often the case in water well drilling, geothermal wells and for shallow micro-piling work. Eccentric casing drilling system is ideal for short holes in consolidated overburden. The component of Eccentric system consists of Pilot bits, Reamer bits, Guide device and casing shoe.


When drilling, the reamer bit will rotate out to enlarge the hole which enough for the casing tube slide down behind the reamer. When reached required depth,the drill pipe will drill to the reverse direction and the reamer bit will retract, it is allowing the whole drilling system to pass through the casing.


The below size of Eccentric systems which are available, and the special design is upon customer’s requirement:
Eccentric 90, Eccentric 114, Eccentric 140, Eccentric 165, Eccentric 190 and Eccentric 240


Applications


Widely used in mines, quarries, earthworks and other engineering drilling blasting hole, guardrail hole, mountain reinforcement, anchorage and other engineering holes,geothermal exploration hole, Well bore and other fields.


Specifications



Type① Casing Tube② Drill Pipe③ Guide Sleeve④ DTH-hammer⑤ Casing Shop⑥ Guide Device⑦ Reamer⑧ Pilot bit
NOD90Maximun115mmConnection ThreadAPI2 3/8”RegEffective length174mm

ND35,

Cop32,

IR3.5,

NQL30

L3=90mm

L4=55mm

D3=101.7mm

D4=93mm

L1=35mm

L2=138mm

D1=92mm

D2=100mm

D5=91mmD6=90mmL6=59mm
O.D76mmL5=70mmGauge button8 X Ф12
Wrench Flats65mmReaming Diameter123mmFront button6 X Ф10
Minmum102mm
Reamer has 4XФ12 buttons
NOD115Maximun142mmConnection ThreadAPI2 3/8”RegEffective length174mm

ND45,

Cop44,

NSD4,

DHD340A,

NQL40,

NM4

L3=76mm

L4=55mm

D3=127.5mm

D4=117mm

L1=48mm

L2=136mm

D1=115mm

D2=126mm

D5=114mmD6=114mmL6=67mm
L5=89mm
Gauge button8 X Ф14
Front button6 X Ф12
Reaming Diameter152mm
O.D76mm
Minmum:128mm
Wrench Flats65mmReamer has 5XФ14 buttons
NOD140Maximun168mmConnection ThreadAPI2 3/8”RegEffective length205mm

ND55,

Cop54,

NSD5,

DHD350R,

NQL50

L3=90mm

L4=63mm

D3=155.3mm

D4=143mm

L1=55mm

L2=160mm

D1=141mm

D2=154mm

D5=138mmD6=138mmL6=66mm
O.D89mmL5=69.5mmGauge button8 X Ф16
Reaming Diameter185mm
Minmum155.40mm
Front button8 X Ф14
Wrench Flats65mmReamer has 7XФ14 buttons
NOD165Maximun193.70mmConnection Thread:API2 1/2”RegEffective length:225mm

ND65,

Cop64,

NSD6,

DHD360,

NQL60

L3=95mm

L4=55mm

D3=181.5mm

D4=166mm

L1=61.5mm L2=181.5mm D1=165mm

D2=178mm

D5=164mm:D6=165.80mmL6=82.50mm
Gauge button8 X Ф16
O.D114mmL5=79.5mm
Reaming Diameter211mm
Minmum181mmFront button8 X Ф16
Wrench Flats65mm
Reamer has 7XФ14 buttons
NOD190Maximun219mmConnection ThreadAPI2 1/2”RegEffective length225mm

ND65,

Cop64,

NSD6,

DHD360,

NQL60

L3=110mm

L4=70mm

D3=204.7mm

D4=193mm

L1=62.8mm L2=185mm D1=191mm D2=203mmD5=164mmD6=165.80mmL6=82.50mm
O.D114mmL5=79.5mm
Gauge button8 X Ф16
Reaming Diameter211mm
Minmum205mm
Front button8 X Ф16
Wrench Flats95mmReamer has 7XФ14 buttons
NOD240Maximun273mmConnection ThreadAPI2 1/2”RegEffective length343mm

ND85,

Cop84,

NSD8,

DHD380,

NQL80

L3=110mm

L4=65mm

D3=259mm

D4=241mm

L1=70mm L2=190mm D1=240mm D2=257mmD5=238mmD6=240mmL6=89.50mm
L5=100mm
Gauge button12 X Ф18
O.D114mmReaming Diameter308mm
Front button32 X Ф16
Minmum260.4mm
Reamer has 16XФ16 buttons
Wrench Flats95mm
NOD280Maximun:324mmConnection ThreadAPI2 1/2”RegEffective length305mm

NSD10,

NUMA100

L3=125mm

L4=75mm

D3=304mm

D4=281mm

L1=97mm L2=254mm D1=280mm D2=303mmD5=266mmD6=280mmL6=135mm
L5=120mm
Gauge button12 X Ф18
O.D114mm
Reaming Diameter378mm
Minmum305mmFront button27 X Ф160
Wrench Flats95mmReamer has 22XФ18 buttons

Feature Advantage


1.price commitment: in order to ensure the high reliability of products, high-quality brand products are selected for raw material selection. Under the same competitive conditions, no more products will be provided to customers at a favorable price, based on the reduction of the technical performance of products.


2.Quality commitment: product manufacturing and testing have quality records and inspection data; the performance of the product can withstand customer inspection.


3.Customer service: in order to create new diamond brand, enhance the visibility of enterprises,establish corporate image, we serve customers with the principle of "preferential prices, good service, reliable product quality"principle.


The appearance of the picture is different from that of the actual product, and the actual product is the standard.


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