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3-11 inch ND series Down The Hole Hammer Hard Rock Drilling Tools

Basic Information
Place of Origin: Hunan, China (Mainland)
Brand Name: New Diamond
Certification: ISO9001:2008
Model Number: ND series
Minimum Order Quantity: Negotiable
Price: Negotiable
Packaging Details: Carton packaging and wooden box packing
Delivery Time: 5-8 work days
Payment Terms: L/C, T/T, Western Union
Supply Ability: According to order quantity
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Detail Information
Length(Without Bit): 872mm-1880mm Processing Type: Forging
Hole Range: Ø71mm-Ø275mm Bit Shank: ND25 IR35 COP44/DHD340 COP44/DHD340 COP54/DHD350R COP54/DHD350R ND55C/DHD350Q COP64/DHD360 COP64/DHD360 COP84/DHD380 DHD1120
Recommended Rotation Speed: 15-25r/min-25-35r/min Working Pressure: 1.3-2.3Mpa 2.0-3.5Mpa

Product Description

Description


With professional manufacturing experience in DTH hammer production, our factory can supply you with high pressure and medium to low pressure DTH hammers. It strictly matches with API standard and other Chinese industry standards. It is durable for being produced with advanced craftwork and good material.

 

Advantages:

1. Deliver maximum energy to drilling bit, fast drilling speed and low air consumption due to the special inner structure of ND series DTH hammer designed according to newest rock drilling theory.

2. Smooth performance and long service lifeof ND series DTH hammer due to high quality alloy steel materials and advanced processing technology adapted.

3. Low problem rate and easy to maintenancedue to simple, reliable and easy assemble and disassemble inner structure of hammer.

4. Easy to depart bit from hammer due to multi—head thread connecting chuck and cylinder of hammer.

5. Interchangeable with DTH bit and drill pipe

 

Applications


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

 

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, raw material selection are using grapefruit brand products; under the same competitive conditions, and not to reduce product technical performance on the basis of sincerity at a favorable price to customers.

 

2. Quality commitment: product manufacturing and testing have quality records and inspection data; the performance of the product can withstand customer inspection.

 

3. Customer service: in order to create new diamond brand, enhance the visibility of enterprises,establish corporate image, we serve customers with the principle of "preferential prices, good service, reliable product quality" principle.

 

 

3-11 inch ND series Down The Hole Hammer Hard Rock Drilling Tools

 

 

 

 

Contact Details
Rick.liao

WhatsApp : 8618692219720