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ISO Standard Borewell Drilling Hammers Without Foot Valve For Mining Tools
ISO Standard Borewell Drilling Hammers Without Foot Valve For Mining Tools
Specifications
Brand Name :
New Diamond
Model Number :
NSD series
Certification :
ISO9001:2008
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 :
hammers
Processing Type :
Forging
Use :
Ore Mining
Color :
Required
Usege :
Mining&Construction&Water Well Drilling
Machine Type :
Drilling Equipment
Description

Description

Down the hole rock tools (drilling tools) are rock drilling equipment which takes compressed air as power source to partially transfer impact power into drilling holes. An air distributing device in a top hammer controls a piston to move back and forth. An impact device arranged in the front of the top hammer transfers the impact powderto a down-the-hole bit to crush rocks.

1. Based on previous experience of ordinary hammers, combined with the features of reverse circulation hammer, optimized internal structure and ideal energy transfer, thus ensuring the series of hammers drilling with fast, smooth and continuous sampling.

2. The internal structure is very simple with components of high rigidity, thus ensuring long life and easy maintenance of the hammer.

3. The collection tube adopts an integrative design and can be replaced without disassembling the hammer. With carburizing treatment, it has good abrasive resistance.

4. Equipped with bits designed with patent. Simply by replacing the drill bit, the same hammer
can drill holes of different sizes ensuring that the sample is not contaminated.

5. In difficult conditions such as loose soil, hard rock and plenty of water exists, sampling can be done well.

Applications

It is mainly used in geological exploration, coal mine, water conservancy and hydropower, highway, railway, bridge, construction and so on.

Specifications

NSD Series High Air Pressure DTH Hammers Without Foot Valve

Technical Data
Length(Without Bit) NSD4A NSD5A NSD6A NSD8A NSD10A NSD12A
1012mm 1090mm 1011mm 986mm 1110mm 1110mm
Weight(Without Bit) 40.00kg 70.00kg 43.20kg 37.00kg 69.00kg 66.00kg
External Diameter Ø99mm Ø126mm Ø146mm Ø180/Ø185mm Ø226mm Ø275mm
Bit Shank SD4 SD5 SD6 SD8 SD10 SD12
Hole Range Ø110-Ø135mm Ø155-Ø190mm Ø155-Ø203mm Ø195-Ø254mm Ø254-Ø311mm Ø305-Ø445mm
Connection Thread API2 3”/8REG

API2 3”/8REG

API3 1”/2REG

API2 7”/8REG

 API3 1”/2REG API4 1”/2REG AP6 5”/8REG API6 5”/8REG
Working Pressure 1.2-2.0Mpa 1.3-2.3Mpa 1.5-2.5Mpa 1.5-3.0Mpa 2.0-3.5Mpa 2.0-3.5Mpa
Impact Rate at 17 Bar 30HZ 28HZ 25HZ 22HZ 20HZ 20HZ
Recommended Rotation Speed 25-40r/min 20-35r/min 20-30r/min 15-25r/min

15-25r/min

20-35r/min

 15-25r/min
Air Consumption

1.0Mpa:

6.0m³/min

1.8Mpa:

9.0m³/min

2.4Mpa:

14.0m³/min

1.0Mpa:

7.0m³/min

1.8Mpa:

14.0m³/min

2.4Mpa:

19.0m³/min

1.0Mpa:

9.0m³/min

1.8Mpa:

18.0m³/min

2.4Mpa:

26.0m³/min

1.0Mpa:

12.0m³/min

1.8Mpa:

22.0m³/min

2.4Mpa:

28.0m³/min

1.8Mpa:

14.0m³/min

2.4Mpa:

65.0m³/min

1.0Mpa:

28.0m³/min

1.8Mpa:

50.0m³/min

2.4Mpa:

71.0m³/min

NSD Series High Air Pressure DTH Hammers Without Foot Valve
Item Description Weight(kg)
NSD4A NSD5A NSD6A NSD8A NSD10A NSD12A
1, Top Sub 6.50 13.70 20.00 34.00 59.00 70.00
2, “O” Ring Of Top Sub 0.10 0.015 0.015 0.015 0.03 0.04
3, Breakout Ring - - - 0.30 0.50 0.80
4, Chenck Valve 0.35 0.70 0.70 1.20 1.40 2.00
5, Spring 0.05 0.10 0.10 0.10 0.30 0.10
6, Air Distributor 1.50 2.00 3.50 6.00 10.50 16.00
7, Internal Cylinder 2.10 2.80 4.20 6.50 12.50 25.00
8, Piston 8.50 15.00 23.00 42.50 77.00 113.00
9, External Cylinder 15.30 24.00 28.00 59.00 110.00 175.00
10, Guided Sleeve 1.30 2.60 2.50 6.00 11.50 25.00
11, “O” Ring Of Stop Ring 0.005 0.01 0.01 0.01 0.01 0.01
12 Stop Ring 0.20 0.50 0.50 1.20 1.50 4.50
13, Breakout Ring - - - 0.30 0.50 0.08
14, Drive Chuck 4.00 7.50 7.50 16.00 31.50 48.00
15, Drill Bit 9.80 16.00 27.00 37.00 108.00 165.00

Product tags

borewell drilling hammers

,

hand auger for well drilling

,

borehole drilling tools
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ISO Standard Borewell Drilling Hammers Without Foot Valve For Mining Tools

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Product Detail
Brand Name :
New Diamond
Model Number :
NSD series
Certification :
ISO9001:2008
Place of Origin :
Hunan, China (Mainland)
MOQ :
Negotiable
Price :
Negotiable
Contact Supplier
ISO Standard Borewell Drilling Hammers Without Foot Valve For Mining Tools

Hunan New Diamond Construction Machinery Co., Ltd.

Active Member
8 Years
hunan, yueyang
Since 2011
Business Type :
Manufacturer
Main Products :
DTH Hammer Bits, DTH Drill Bits, DTH Button Bits
Total Annual :
1,000,000-40,000,000
Employee Number :
100~300
Certification Level :
Active Member
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