N Series High Air Pressure DTH Hammers With Foot Valve

ANBIT produces the highest quality and efficient DTH hammer and drill bits for the mining, construction and water well industries. Drilling and blasting engineers and well contractors rely on ABT equipment because each of our product uses superior materials and advanced processes.
Advantages Of N Series High Air Pressure DTH Hammers:

1. Valveless air distribution.More reliable.
2. Simple design of the piston.long life span.
3. More effcient energy transfer,faster drilling speed,lower air consumption and lower oil consumption.
4. Fewer intemal parts,simple structure,long life span,less failure and easier to maintain because all the parts are heat trated.
5. Easy to disassemble because the top sub,the drive chuck and the extemal cyinder are connected by muitiple steps thread.


Specification Of N Series High Air Pressure DTH Hammers With Foot Valve
N Series High Air Pressure DTH Hammers With Foot Valve
Item Description Weight(kg)
N100 N120 N125
1、Top Sub 59 70 70
2、“O” Ring Of Top Sub 0.03 0.04 0.04
3、Breakout Ring 0.4 0.8 0.8
4、Chenck Valve 1.6 3 3
5、Spring 0.3 0.1 0.1
6、Compression Buffer 0.6 1 1
7、Air Distributor 11.5 20 20
8、Internal Cylinder 11 23 23
9、Piston 62 125 125
10、External Cylinder 112 170 170
11、Guided Sleeve 18
12、“O” Ring Of Stop Ring 0.03 0.04 0.01
13、Stop Ring 1.5 4.5 4
14、Breakout Ring 0.4 0.8 0.8
15、Drive Chuck 26 49 45
16、Drill Bit 115 129 175
Technical Data
Length(Without Bit) N100 N120 N125
1510mm 1900mm 1900mm
Weight(Without Bit) 288.00kg 485.00kg 485.00kg
External Diameter Ø226mm Ø275mm Ø275mm
Bit Shank NUMA100 NUMA120 NUMA125
Hole Range Ø254-Ø311mm Ø305-Ø445mm Ø30-Ø445mm
Connection Thread API4 1”/2REG API6 5”/8REG API6 5”/8REG
API6 5”/8REG
Working Pressure 2.0-3.5Mpa 2.0-3.5Mpa 2.0-3.5Mpa
Impact Rate at 17 Bar 18HZ 18HZ 16HZ
Recommended Rotation Speed 15-25r/min 15-25r/min 15-25r/min
Air Consumption 1.0Mpa:22.0m³/min 1.0Mpa:30.0m³/min 1.0Mpa:30.0m³/min
1.8Mpa:45.0m³/min 1.8Mpa:56.0m³/min 1.8Mpa:56.0m³/min
2.4Mpa:60.0m³/min 2.4Mpa:18.0m³/min 2.4Mpa:78.0m³/min



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