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

Hunan New Diamond Construction Machinery Co., Ltd.

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High Performance DTH Borewell Drilling Hammers 1.3- 3.5Mpa , Anti Corrosive

High Performance DTH Borewell Drilling Hammers 1.3- 3.5Mpa , Anti Corrosive

  • High Performance DTH Borewell Drilling Hammers 1.3- 3.5Mpa , Anti Corrosive
High Performance DTH Borewell Drilling Hammers 1.3- 3.5Mpa , Anti Corrosive
Product Details:
Place of Origin: Hunan, China (Mainland)
Brand Name: New Diamond
Certification: ISO9001:2008
Model Number: ND 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
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Detailed Product Description
Type: Hammers Processing Type: Forging
Use: Borewell Color: Required
Application: MARBLE QUARRY OR WELL DRILLING Material: Alloy Steel
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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


 
 

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

 

 

 

 

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
Top Sub 3.10 4.20 6.50 6.00 13.70 13.30 13.70 20.00 23.00 34.00 70.00
“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
Breakout Ring - - - - - - - - - 0.30 0.80
Chenck Valve 0.10 0.20 0.35 0.30 0.70 0.70 0.70 0.70 0.70 1.20 2.00
Spring 0.05 0.02 0.05 0.05 0.10 0.10 0.10 0.10 0.10 0.10 0.10
Air Distributor 0.60 0.80 1.50 1.30 2.00 1.90 2.00 3.50 4.50 6.00 16.00
Internal Cylinder 0.80 1.30 2.10 1.90 2.80 2.70 2.80 4.20 6.50 6.50 25.00
Piston 3.80 5.50 8.50 7.80 15.00 14.50 15.00 23.00 28.00 42.50 113.00
External Cylinder 4.50 9.50 15.20 14.60 24.00 23.00 25.00 31.50 40.00 60.00 173.00
Guided Sleeve 0.60 1.00 1.30 1.20 2.60 2.50 3.20 6.50 7.50 5.30 24.00
“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
Stop Ring 0.10 0.15 0.30 0.20 0.50 0.50 0.50 0.60 0.80 1.20 4.00
Breakout Ring - - - - - - - - - 0.30 0.80
Drive Chuck 1.40 1.90 3.40 3.40 6.50 6.20 4.000 6.00 8.00 17.50 46.00
Drill Bit 3.20 5.00 9.00 8.50 16.00 15.50 15.90 26.00 28.50 40.00 140.00

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
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