NQL 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 ANBIT equipment because each of our product uses superior materials and advanced processes.
Advantages Of NQL 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 NQL Series High Air Pressure DTH Hammers With Foot Valve
NQL Series High Air Pressure DTH Hammers With Foot Valve
Item Description Weight(kg)
1、Top Sub 6.5 15 20 41
2、“O” Ring Of Top Sub 0.01 0.015 0.02 0.02
3、Breakout Ring 0.3
4、Chenck Valve 0.42 1 1 1.5
5、Spring 0.04 0.1 0.1 0.1
6、Compression Buffer 0.04 0.1 0.1 0.42
7、Air Distributor 2.2 3.5 6 13
8、Internal Cylinder 2.3 4.2 5 8.6
9、Piston 9 19 23.5 41
10、External Cylinder 16.5 24.6 31 60
11、Guided Sleeve 0.9 1 2.2
12、“O” Ring Of Stop Ring 0.01 0.01 0.02 0.02
13、Stop Ring 0.3 0.4 0.6 1.2
14、Breakout Ring 0.3
15、Drive Chuck 3 4.6 5.4 12
16、Drill Bit 9.5 15.5 24.6 35
Technical Data
Length(Without Bit) NQL4 NQL5 NQL6 NQL8
1097mm 1156mm 1212mm 1465mm
Weight(Without Bit) 41.00kg 73.00kg 95.00kg 182.00kg
External Diameter Ø99mm Ø126mm Ø142mm Ø144mm Ø180mm
Ø146mm Ø148mm
Bit Shank QI40 QI50 QI60 QI80
Hole Range Ø110-Ø135mm Ø135-Ø155mm Ø155-Ø190mm Ø195-Ø254mm
Connection Thread API2 3”/8REG API3 1”/2REG API3 1”/2REG API4 1”/2REG
API2 7”/8REG API2 7”/8REG
2 7”/8 IF
Working Pressure 1.2-2.0Mpa 1.3-2.3Mpa 1.5-2.5Mpa 1.5-3.0Mpa
Impact Rate at 14 Bar 27HZ 25HZ 23HZ 20HZ
Recommended Rotation Speed 25-40r/min 25-40r/min 20-30r/min 15-25r/min
Air Consumption 1.0Mpa:6.0m³/min 1.0Mpa:9.0m³/min 1.0Mpa:10.0m³/min 1.0Mpa:15.0m³/min
1.8Mpa:10.0m³/min 1.8Mpa:15.0m³/min 1.8Mpa:20.0m³/min 1.8Mpa:26.0m³/min
2.4Mpa:15.0m³/min 2.4Mpa:23.0m³/min 2.4Mpa:28.5m³/min 2.4Mpa:34.0m³/min



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