Home > Mining Machinery >

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

Categories Down The Hole Hammer
Brand Name: New Diamond
Model Number: NSD 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
Usege: Mining&Construction&Water Well Drilling
Material: Alloy Steel
  • Product Details
  • Company Profile

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

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)NSD4ANSD5ANSD6ANSD8ANSD10ANSD12A
1012mm1090mm1011mm986mm1110mm1110mm
Weight(Without Bit)40.00kg70.00kg43.20kg37.00kg69.00kg66.00kg
External DiameterØ99mmØ126mmØ146mmØ180/Ø185mmØ226mmØ275mm
Bit ShankSD4SD5SD6SD8SD10SD12
Hole RangeØ110-Ø135mmØ155-Ø190mmØ155-Ø203mmØ195-Ø254mmØ254-Ø311mmØ305-Ø445mm
Connection ThreadAPI2 3”/8REG

API2 3”/8REG

API3 1”/2REG

API2 7”/8REG

API3 1”/2REGAPI4 1”/2REGAP6 5”/8REGAPI6 5”/8REG
Working Pressure1.2-2.0Mpa1.3-2.3Mpa1.5-2.5Mpa1.5-3.0Mpa2.0-3.5Mpa2.0-3.5Mpa
Impact Rate at 17 Bar30HZ28HZ25HZ22HZ20HZ20HZ
Recommended Rotation Speed25-40r/min20-35r/min20-30r/min15-25r/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 DescriptionWeight(kg)
NSD4NSD5NSD6NSD8NSD10NSD12
Top Sub6.5015.0020.0041.0059.0070.00
“O” Ring Of Top Sub0.010.010.010.020.030.04
Breakout Ring0.01--0.200.300.80
Chenck Valve0.421.001.001.501.403.00
Spring0.040.100.050.100.300.10
Compression Buffer0.040.050.100.420.601.00
Air Distributor2.203.505.0012.5011.5020.00
Internal Cylinder2.50-5.008.6011.0023.00
Piston9.004.2024.0042.0062.00125.00
External Cylinder15.6015.5035.0065.00110.00170.00
Guided Sleeve0.0225.000.010.050.030.04
“O” Ring Of Stop Ring0.200.010.501.200.604.80
Stop Ring-0.501.503.404.5018.00
Breakout Ring0.01---0.300.80
Drive Chuck4.007.507.5015.5024.0051.00
Drill Bit9.6015.6025.8037.00115.00120.00

Product Tags:

dth hammer

  

rock mining tools

  
Quality Long Down The Hole Hammer No Footvalve For Geological Exploration / Coal Mine for sale
Send your message to this supplier
 
*From:
*To: Hunan New Diamond Construction Machinery Co., Ltd.
*Subject:
*Message:
Characters Remaining: (0/3000)
 
Inquiry Cart 0
  • Haven't found right suppliers
  • Our buyer assistants can help you find the most suitable, 100% reliable suppliers from China.
  • And this service is free of charge.
  • we have buyer assistants who speak English, French, Spanish......and we are ready to help you anytime!
Submit Buying Request
Contact Us Quickly