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Tapered drill rod

Item No.: 00408
Taper Angle: 4, 6, 7, 11, 12 degree
Bit diameter: 26mm, 28mm, 30mm, 32mm, 34mm, 36mm, 38mm, 40mm, 42mm
Chisel bit diameter: 17mm, 20mm, 22mm
Sale: 0
Description Review
Description
Tapered Drill Rod

Different rock formations and rock drills require different taper angles. When drilling with high impact hydraulic rock drills in medium-hard to hard and abrasive rock formations, a wide taper angle is normally used. Taper angles of 11 and 12-degrees are normally used on modern drill rigs. For low impact rock drills and softer rock formations, a narrow taper angle of seven degrees is used. A 7-degree angle can also be used if bit spinning is a problem when using 11 and 12-degree equipment. In addition, a 4,46 degree angle is ideal for soft rock when you're using pneumatic or hydraulic drill rigs - to prevent bits from spinning or becoming detached.


Whatsapp/Phone:+86 18186993613

E-mail: [email protected]

Product Name:

Tapered drill rods

Types

Tapered drill rods, Integral Drill Rods, Plug hole rods

Application::

Tapered drill rods are used in granite and marble quarry, gold mine, railway, tunnel, etc. for drilling

Material:

High quality carbide and high quality steel

MOQ:

No requirement for testing and trial order

We can produce as your request of carbide size, different length of drill rods.

Types of drill rods

Specifications

Length  (mm)

Shank

Weight (kg)

Tapered drill rods

Taper Angle: 4, 6, 7, 11, 12 degree

400mm to 8000mm

Hex19mm*108mm

Hex22mm*108mm

Hex25mm*159mm

1.7 - 24.9

Integral drill steel

Bit diameter: 26mm, 28mm, 30mm, 32mm, 34mm, 36mm, 38mm, 40mm, 42mm

400mm to 4800mm

3 – 15.4

Plug hole rods

Chisel bit diameter: 17mm, 20mm, 22mm

150mm to 710mm

0.6 - 2.9

Describtion

Our factory can offer many kinds of drill bits, including chisel type bits, cross type bits, tapered drill rods and integral drill rods, mainly used for mining, coal cutting, tunneling, rock cutting in quarrying.

Integral Drill Steel is used by a hand held drill machine in Underground mining and for small hole drilling, equipped with small power rock drills, like Air leg rock drills, hand held rock drills, etc. It can reduces the expense of impact energy, improves the drilling speed and efficiency, also it can be used for drilling bore hole diameter from 30mm to 41mm usually. Regarding Integral drill steels, the quality of a steel material and a tungsten carbide is very important to get good drilling performance.

According to different application, different lengths are available from 400mm to 5000mm usually.

specification
(1)Material:55SiMnMo
(2)Shank size:hex19/22/25mm including plug hole rods
(3)Bit Dia:30-41mm
(4)Length:0.4m-5m...
(5)Package:wooden case/bundles/crate

Hex Tapered Rod ,  7 ° ,  11° , 12°
Length (mm) Weight (Kg) PN.
1 600 1.93
2 800 2.54
3 1000 3.15
4 1200 3.76
5 1500 4.68
6 1600 4.98
7 1800 5.59
8 2000 6.2
9 2200 6.81
10 2300 7.12
11 2400 7.42
12 2500 7.73
13 2600 8.03
14 3000 9.25
15 3500 10.78
16 4000 12.3
17 4500 13.83
18 5000 15.35
19 5500 16.88
20 6000 18.3
Shank 25 x 108 mm (1” x 4 1/4”)
Length (mm) Weight (Kg) PN.
1 4000 16.1
2 4700 18.9
3 5000 22.1
4 5500 22.1
5 6000 24.1
Chisel Bit Integral Drill Steel
Shank 19 x 108 mm (3/4” x 4 1/4”)
Length (mm) Bit Diameter (mm) PN.
1 400 29
2 500 29
3 800 28
4 1000 28
5 1200 27
6 1600 27
7 2400 26
8 3200 25
9 4000 24
10 400 24
11 800 23
12 600 27
13 1200 24
14 2000 24
15 2400 24
16 2700 24
17 400 35
18 800 34
Chisel Bit Integral Drill Steel
Shank 22 x 108 mm (7/8” x 4 1/4”)
Length (mm) Bit Diameter (mm) PN.
1 400 24
2 400 29
3 600 27
4 800 23
5 800 28
6 1200 23
7 1600 27
8 2000 28
9 2400 26
10 3200 25
Plug Hole Integral Drill Steel
Shank 19 x 108 mm (3/4” x 4 1/4”)
Length (mm) Bit Diameter (mm) PN.
1 210 17
2 210 20
3 210 22
4 260 20
5 260 22
6 310 22
7 340 20
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