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DHD3.5-90 DTH Hammer Dril Bit

DHD Shank DHD3.5-90 DTH Hammer Bit with flat face, dome & ballistic buttons for blasting bore holes, water well drilling.
ROSCHEN is one the professional manufacturer and supplier of high performance rock drilling tools like DTH Hammers and Bits. PDC Hammers and Bits, DTH drilling pipes and Top Hammer Drilling Tools.
Our tools are widely used in different drilling applications including mining, quarrying, water well drilling, geotechnical industries and etc.

Quantity:
  • DHD3.5-90
  • ROSCHEN
  • ROS-DHD3.5-90

Product Description

DTH Hammer Bit DHD3.5-90 


DHD Shank DHD3.5-90 DTH Hammer Bit with flat face, dome & ballistic buttons for blasting bore holes, water well drilling.

CODE NO.

DHD3.5-90

Shank type

DHD

Diameter

90mm

gauge buttons

6

Front buttons

5

Bit face type

flat

carbide design

Dome, Ballistic

 

ROSCHEN is one the professional manufacturer and supplier of high performance rock drilling tools like DTH Hammers and Bits. PDC Hammers and Bits, DTH drilling pipes and Top Hammer Drilling Tools.

        

Our tools are widely used in different drilling applications including mining, quarrying, water well drilling, geotechnical industries and etc.

 DTH BIT DHD3.5 90

In DTH drilling, the rock drilling bit is a continuation of the shank, which the rock drill piston strikes directly. Since the piston is in direct contact with the drill bit, little energy is lost. This gives DTH drilling a nearly constant penetration rate regardless of hole length.

 

Rock drilling tools: Bit shank type of DHD series DTH Bits are designed to fit DTH hammers, which is the most popular design for blasting bore holes, water well drilling. In conjunction with DTH hammers, DTH hammer bits with DHD shank type are designed with a splined drive for rotating the bit in the ground. Rock drill bits in DHD shank are available in different sizes and different styles so they can drill a wide range of hole sizes.

 

Flat Face Bit 

This is an universal design, especially for hard and abrasive rock formation. So typically, flat face with hemispherical buttons design is the most popular choice.

 

This kind of face shape is suitable for hard to very hard and abrasive rock formations in application with high air pressure. Good penetration rates an resistance to steel wash.

 

Dome/Hemispherical Buttons 

Universal buttons for all rock formation, best suited to hardest and very abrasive rock formation.

 

Parabolic/Semi-Ballistic Button

It is usually used as gauge buttons and front buttons of DTH Bits, suitable for medium abrasive and hard formations.


Dth Hammer Drilling Tools Specifications: 

 

ROSCHEN   DTH Hammers Specifications


Hammer   Size

Bit   Shank

ROSCHEN   Code

Connection   Thread

Suitable   bit

Working   pressure

Air   consumption



2"

BR2

ROS   11

ROS   22

RD50   box

70-90mm

0.7-1.75Mpa

0.7Mpa

4.5m3/min


1.0Mpa

4m3/min


1.4Mpa

5m3/min


3"

DHD3.5

ROS   32

API   2 3/8" Reg

90-110mm

1.0-1.5Mpa

1.0Mpa

4.5m3/min


COP32/COP34


M30

1.5Mpa

9m3/min


4"

DHD340

ROS   34

API   2 3/8" Reg

110-135mm

1.0-2.5Mpa

1.0Mpa

6m3/min


COP44


QL40


SD4

1.8Mpa

10m3/min


M40

2.4Mpa

15m3/min


5"

DHD350

ROS   52

ROS   54

API   2 3/8"Reg/API 3 1/2" Reg

135-155mm

1.0-2.5Mpa

1.0Mpa

9m3/min


COP54


QL50


SD5

1.8Mpa

15m3/min


M50

2.4Mpa

23m3/min


6"

DHD360

ROS   62

ROS   64

API   3 1/2" Reg

155-190mm

1.0-2.5Mpa

1.0Mpa

10m3/min


COP64


QL60


SD6

1.8Mpa

20m3/min


M60

2.4Mpa

28.5m3/min


8"

DHD380

ROS   82

ROS   84

API   4 1/2" Reg

195-254mm

1.0-2.5Mpa

1.0Mpa

15m3/min


COP84


QL80

1.8Mpa

26m3/min


SD8

2.4Mpa

34m3/min


M80/M85


10"

SD10

ROS   100

API   6 5/8" Reg

254-311mm

1.0-2.5Mpa

1.0Mpa

22m3/min


Numa100

1.8Mpa

40m3/min


ROS   100

2.4Mpa

55m3/min


12"

DHD1120

ROS   120

API   6 5/8" Reg

305-445mm

1.0-2.5Mpa

1.0Mpa

30m3/min


SD12

1.8Mpa

56m3/min


Numa120

2.4Mpa

78m3/min


Notes:   Any special size of DTH bits will be available by requests.


Metzke,   Remet thread is available!



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