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Hunan New Diamond Construction Machinery Co., Ltd.
Hunan New Diamond Construction Machinery Co., Ltd.
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Alloy Steel Rock Drill Accessories / Borewell Earth Drilling Tools ND Series

Hunan New Diamond Construction Machinery Co., Ltd.

Alloy Steel Rock Drill Accessories / Borewell Earth Drilling Tools ND Series

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

Material : Alloy Steel

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Description


DTH hammers are used for blast hole drilling and water well drilling project.Working with DTH drilling pipe and DTH drill bit, mainly applied in Mining,Marble quarry or well drilling and other construction projects.


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


1 Price commitment: in order to ensure the high reliability of products, high-quality brand products are selected for raw material selection. Under the same competitive conditions, the products will be provided to customers at a favorable price without reducing the technical performance of products.


2 Quality commitment: the manufacture and inspection of the products have quality records and testing data, and the performance of the products can stand the customer's inspection.

3
Customer service: in order to create new Jingang brand, enhance corporate reputation and set up corporate image, we serve customers with the principle of "preferential price, considerate service and reliable product quality".

The appearance of the picture is different from that of the actual product, and the actual product is the standard.

Alloy Steel Rock Drill Accessories / Borewell Earth Drilling Tools ND Series

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

Product Tags:

borewell hammer

      

dth drilling tools

      
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