Tel:
Hunan New Diamond Construction Machinery Co., Ltd.
Hunan New Diamond Construction Machinery Co., Ltd.

Hunan New Diamond Construction Machinery Co., Ltd.

Home ProductsDown The Hole Hammer

Heavy Duty Down The Hole Hammer For Blast Hole Drilling , 1.2-3.5Mpa Pressure

Heavy Duty Down The Hole Hammer For Blast Hole Drilling , 1.2-3.5Mpa Pressure

  • Heavy Duty Down The Hole Hammer For Blast Hole Drilling , 1.2-3.5Mpa Pressure
Heavy Duty Down The Hole Hammer For Blast Hole Drilling , 1.2-3.5Mpa Pressure
Product Details:
Place of Origin: Hunan, China (Mainland)
Brand Name: New Diamond
Certification: ISO9001:2008
Model Number: NSD series
Payment & Shipping Terms:
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
Contact Now
Detailed Product Description
Type: Hammers Processing Type: Forging
Use: Ore Mining Color: Required
Material: Alloy Steel Machine Type: Drilling Equipment
High Light:

rock mining tools

,

oil drilling tools

NSD series Down The Hole Hammer with Foot Valve High Air Pressure for Mining tools

 

Description


When percussion or hammer drilling the percussion mechanism is called a DTH or down the hole hammer. This drilling tool is located directly above the down hole hammer bit. The driller transfers weight to the bit through the drill pipe as well as provides some rotation. Through the use of a compressor, the pressurized air is forced to the down hole hammer. As the drilled hole gets deeper the driller adds more drill pipe to the string. The piston strikes the impact zone of the hammer bit; hammers are always used as part of a casing advancement system and can be used in reverse circulation applications. DTH hammers are common when drilling blast holes and water wells.

 

 

 

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 With Foot Valve

Technical Data

Length(Without Bit) NSD4 NSD5 NSD6 NSD8 NSD10 NSD12
1084mm 1175mm 1261mm 1463mm 1502mm 1880mm
Weight(Without Bit) 40.50kg 72.50kg 100.00kg 192.00kg 290.00kg 487.00kg
External Diameter Ø99mm Ø126mm

Ø142mm- Ø144mm

Ø146mm- Ø148mm

Ø180 Matching /

Ø 185mm

Ø226mm Ø275mm
Bit Shank SD4 SD5 SD6 SD8 SD10 SD12
Hole Range Ø110-Ø135mm Ø135-Ø155mm Ø155-Ø190mm Ø195-Ø254mm Ø254-Ø311mm Ø305-Ø445mm
Connection Thread API2 3”/8REG

API3 1”/2REG

API2 7”/8REG

API3 1”/2REG API4 1”/2REG

API4 1”/2REG

API6 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 27HZ 25HZ 23HZ 20HZ 18HZ 16HZ
Recommended Rotation Speed 25-40r/min 20-35r/min 20-30r/min 5-25r/min 20-30r/min 15-25r/min
Air Consumption

1.0Mpa:

6.0m³/min

1.8Mpa:

10.0m³/min

2.4Mpa:

15.0m³/min

1.0Mpa:

9.0m³/min

1.8Mpa:

15.0m³/min

2.4Mpa:

23.0m³/min

1.0Mpa:

10.0m³/min

1.8Mpa:

20.0m³/min

2.4Mpa:

28.5m³/min

1.0Mpa:

15.0m³/min

1.8Mpa:

26.0m³/min

2.4Mpa:

34.0m³/min

1.0Mpa:

22.0m³/min

1.8Mpa:

40.0m³/min

2.4Mpa:

55.0m³/min

1.0Mpa:

30.0m³/min

1.8Mpa:

56.0m³/min

2.4Mpa:

78.0m³/min

 

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

 

 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.

 

 

 

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

 

NSD Series High Air Pressure DTH Hammers With Foot Valve
Item Description Weight(kg)
NSD4 NSD5 NSD6 NSD8 NSD10 NSD12
1, Top Sub 6.50 15.00 20.00 41.00 59.00 70.00
2, “O” Ring Of Top Sub 0.01 0.01 0.01 0.02 0.03 0.04
3, Breakout Ring 0.01     0.20 0.30 0.80
4, Chenck Valve 0.42 1.00 1.00 1.50 1.40 3.00
5, Spring 0.04 0.10 0.05 0.10 0.30 0.10
6, Compression Buffer 0.04 0.05 0.10 0.42 0.60 1.00
7, Air Distributor 2.20 3.50 5.00 12.50 11.50 20.00
8, Internal Cylinder 2.50   5.00 8.60 11.00 23.00
9, Piston 9.00 4.20 24.00 42.00 62.00 125.00
10, External Cylinder 15.60 15.50 35.00 65.00 110.00 170.00
11, Guided Sleeve 0.02 25.00 0.01 0.05 0.03 0.04
12, “O” Ring Of Stop Ring 0.20 0.01 0.50 1.20 0.60 4.80
13, Stop Ring   0.50 1.50 3.40 4.50 18.00
14, Breakout Ring 0.01       0.30 0.80
15, Drive Chuck 4.00 7.50 7.50 15.50 24.00 51.00
16, Drill Bit 9.60 15.60 25.80 37.00 115.00 120.00
 

 

 

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
 

Contact Details
Hunan New Diamond Construction Machinery Co., Ltd.

Contact Person: Rick.liao

Tel: +8618692219720

Send your inquiry directly to us
Hunan New Diamond Construction Machinery Co., Ltd.
PinJiang Industry Park,PingJiang county,YueYang City,Hunan,China.
Tel:86-731-89708248
Mobile Site Privacy Policy China Good Quality DTH Hammer Bits Supplier. © 2017 - 2021 dthhammerbits.com. All Rights Reserved.