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.
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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 DescriptionWeight(kg)
N100N120N125
1、Top Sub597070
2、“O” Ring Of Top Sub0.030.040.04
3、Breakout Ring0.40.80.8
4、Chenck Valve1.633
5、Spring0.30.10.1
6、Compression Buffer0.611
7、Air Distributor11.52020
8、Internal Cylinder112323
9、Piston62125125
10、External Cylinder112170170
11、Guided Sleeve18
12、“O” Ring Of Stop Ring0.030.040.01
13、Stop Ring1.54.54
14、Breakout Ring0.40.80.8
15、Drive Chuck264945
16、Drill Bit115129175
Technical Data
Length(Without Bit)N100N120N125
1510mm1900mm1900mm
Weight(Without Bit)288.00kg485.00kg485.00kg
External DiameterØ226mmØ275mmØ275mm
Bit ShankNUMA100NUMA120NUMA125
Hole RangeØ254-Ø311mmØ305-Ø445mmØ30-Ø445mm
Connection ThreadAPI4 1”/2REGAPI6 5”/8REGAPI6 5”/8REG
API6 5”/8REG
Working Pressure2.0-3.5Mpa2.0-3.5Mpa2.0-3.5Mpa
Impact Rate at 17 Bar18HZ18HZ16HZ
Recommended Rotation Speed15-25r/min15-25r/min15-25r/min
Air Consumption1.0Mpa:22.0m³/min1.0Mpa:30.0m³/min1.0Mpa:30.0m³/min
1.8Mpa:45.0m³/min1.8Mpa:56.0m³/min1.8Mpa:56.0m³/min
2.4Mpa:60.0m³/min2.4Mpa:18.0m³/min2.4Mpa:78.0m³/min

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