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Brand Name : | New Diamond |
Model Number : | NSD series |
Certification : | ISO9001:2008 |
Price : | Negotiable |
Payment Terms : | L/C, T/T, Western Union |
Supply Ability : | According to order quantity |
Delivery Time : | 5-8 work days |
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 |
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