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

Long Down The Hole Hammer No Footvalve For Geological Exploration / Coal Mine

Long Down The Hole Hammer No Footvalve For Geological Exploration / Coal Mine

  • Long Down The Hole Hammer No Footvalve For Geological Exploration / Coal Mine
Long Down The Hole Hammer No Footvalve For Geological Exploration / Coal Mine
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
Usege: Mining&Construction&Water Well Drilling Material: Alloy Steel
High Light:

dth hammer

,

rock mining tools

Description


Choosing the right hammer is largely determined by hole size and type of rock formation. Ideally, the size of the hammer should match the required hole dimension as closely as possible, leaving just enough space for cuttings to evacuate the hole.

 

1. according to China's mining conditions, to absorb the advanced technology of domestic and foreign impactor and design and manufacture of the latest products.


2. reasonable selection of materials, advanced manufacturing technology, quality assurance perfect.


3. has higher drilling speed.


4. can provide hardening treatment in order to prolong the service life and reduce the cost of use.


5. single impact power is large, and the power consumption of broken rock is low.


6. piston and bit weight to have the best momentum transfer.


7. the modern theory is adopted in the structural design, which makes the stress wave duration longer, the stress amplitude is lower, and the piston life is long.

 

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

 

 

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.