Specifications
Brand Name :
New Diamond
Model Number :
ND 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
Machine Type :
Drilling Equipment
Application :
MARBLE QUARRY OR WELL DRILLING
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



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


ND Series High Air Pressure DTH Hammers Without Foot Valve

Technical Data

Length(Without Bit) ND25A ND35A ND45A ND45S ND55A ND55S
872mm 888mm 1011mm 986mm 1110mm 1110mm
Weight(Without Bit) 16.00kg 25.00kg 43.20kg 37.00kg 69.00kg 66.00kg
External Diameter Ø71mm Ø82mm Ø99mm Ø92mm Ø126mm Ø116mm
Bit Shank ND25 IR35 COP44/DHD340 COP44/DHD340 COP54/DHD350R COP54/DHD350R
Hole Range Ø71-Ø90mm Ø90-Ø115mm Ø110-Ø135mm Ø105-Ø120mm Ø135-Ø155mm Ø127-Ø145mm
Connection Thread T42x10x1.5 API2 3”/8REG API2 3”/8REG API2 3”/8REG

API2 3”/8REG

API3 1”/2REG

API2 7”/8REG

2 7”/8 IF

API2 3”/8REG

API3 1”/2REG

API2 7”/8REG

Working Pressure 1.0-1.5Mpa 1.0-1.5Mpa 1.2-2.0Mpa 1.2-2.0Mpa 1.3-2.3Mpa 1.3-2.3Mpa
Impact Rate at 14 Bar 25HZ 25HZ 30HZ 30HZ 28HZ 28HZ
Recommended Rotation Speed 22-35r/min 25-40r/min 22-35r/min 25-40r/min 20-35r/min 25-35r/min
Air Consumption

1.0Mpa:

4.0m³/min

1.5Mpa:

6.0m³/min

1.0Mpa:

3.8m³/min

1.5Mpa:

7.5m³/min

1.0Mpa:

6.0m³/min

1.8Mpa:

10.0m³/min

2.4Mpa:

15.0m³/min

1.8Mpa:

8.0m³/min

2.4Mpa:

13.0m³/min

1.0Mpa:

7.0m³/min

1.8Mpa:

14.0m³/min

2.4Mpa:

19.0m³/min

1.0Mpa:

7.0m³/min

1.8Mpa:

13.5m³/min

2.4Mpa:

18.0m³/min

ND Series High Air Pressure DTH Hammers Without Foot Valve

Technical Data

Length(Without Bit) ND55C(A) ND65A ND75A ND85A ND1120A
1102mm 1238mm 1258mm 1359mm 1880mm
Weight(Without Bit) 68.00kg 98.00kg 120.00kg 175.00kg 474.00kg
External Diameter Ø126mm Ø142/Ø146mm Ø165mm Ø180/Ø185mm Ø275mm
Bit Shank ND55C/DHD350Q COP64/DHD360 COP64/DHD360 COP84/DHD380 CDHD1120
Hole Range Ø135-Ø155mm Ø155-Ø203mm Ø175-Ø216mm Ø195-Ø254mm Ø305-Ø445mm
Connection Thread

API2 3”/8REG

API3 1”/2REG

API2 7”/8REG

API3 1”/2REG API3 1”/2REG API4 1”/2REG API6 5”/8REG
Working Pressure 1.3-2.3Mpa 1.5-3.0Mpa 1.5-3.0Mpa 1.5-3.0Mpa 2.0-3.5Mpa
Impact Rate at 17 Bar 28HZ 25HZ 23HZ 22HZ 20HZ
Recommended Rotation Speed 22-35r/min 20-30r/min 20-30r/min 15-25r/min 15-25r/min
Air Consumption

1.0Mpa:8.0m³/min

1.8Mpa:6.0m³/min

2.4Mpa:19.0m³/min

1.0Mpa:9.0m³/min

1.8Mpa:18.0m³/min

2.4Mpa:26.0m³/min

1.0Mpa:11.0m³/min

1.8Mpa:20.0m³/min

2.4Mpa:28.0m³/min

1.0Mpa:12.0m³/min

1.8Mpa:22.0m³/min

2.4Mpa:28.0m³/min

1.0Mpa:28.0m³/min

1.8Mpa:50.0m³/min

2.4Mpa:71.0m³/min

Feature Advantage



Characteristic advantage

1 adopts the industry's leading heat treatment technology, and the steel hardness and wayward products are in the leading position.

2 alloy teeth adopt professional technology to greatly improve the strength of alloy teeth.

3 perfect after-sales security system and after-sales service tracking, the perfect solution to any problem of customers.

ND Series High Air Pressure DTH Hammers Without Foot Valve
Item Description Weight(kg)
ND25A ND35A ND45A ND45S ND55A ND55S ND55C(A) ND65A ND75A ND85A ND1120A
1, Top Sub 3.10 4.20 6.50 6.00 13.70 13.30 13.70 20.00 23.00 34.00 70.00
2, “O” Ring Of Top Sub - 0.01 0.01 0.01 0.015 0.015 0.015 0.02 0.015 0.015 0.04
3, Breakout Ring - - - - - - - - - 0.30 0.80
4, Chenck Valve 0.10 0.20 0.35 0.30 0.70 0.70 0.70 0.70 0.70 1.20 2.00
5, Spring 0.05 0.02 0.05 0.05 0.10 0.10 0.10 0.10 0.10 0.10 0.10
6, Air Distributor 0.60 0.80 1.50 1.30 2.00 1.90 2.00 3.50 4.50 6.00 16.00
7, Internal Cylinder 0.80 1.30 2.10 1.90 2.80 2.70 2.80 4.20 6.50 6.50 25.00
8, Piston 3.80 5.50 8.50 7.80 15.00 14.50 15.00 23.00 28.00 42.50 113.00
9, External Cylinder 4.50 9.50 15.20 14.60 24.00 23.00 25.00 31.50 40.00 60.00 173.00
10, Guided Sleeve 0.60 1.00 1.30 1.20 2.60 2.50 3.20 6.50 7.50 5.30 24.00
11, “O” Ring Of Stop Ring 0.005 0.05 0.01 0.005 0.01 0.01 0.01 0.01 0.01 0.01 0.01
12, Stop Ring 0.10 0.15 0.30 0.20 0.50 0.50 0.50 0.60 0.80 1.20 4.00
13, Breakout Ring - - - - - - - - - 0.30 0.80
14, Drive Chuck 1.40 1.90 3.40 3.40 6.50 6.20 4.000 6.00 8.00 17.50 46.00
15, Drill Bit 3.20 5.00 9.00 8.50 16.00 15.50 15.90 26.00 28.50 40.00 140.00
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ND Series Borewell Drilling Hammers Without Foot Valve For High Air Pressure Work

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Brand Name :
New Diamond
Model Number :
ND series
Certification :
ISO9001:2008
Place of Origin :
Hunan, China (Mainland)
MOQ :
Negotiable
Price :
Negotiable
Contact Supplier
ND Series Borewell Drilling Hammers Without Foot Valve For High Air Pressure Work

Hunan New Diamond Construction Machinery Co., Ltd.

Active Member
8 Years
hunan, yueyang
Since 2011
Business Type :
Manufacturer
Total Annual :
1,000,000-40,000,000
Employee Number :
100~300
Certification Level :
Active Member
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