Shenyang ABT Drilling Equipment Co., Ltd.
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ND Series High Air Pressure DTH Hammers With Foot Valve

ND 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.
  • Product Description
  • Specification

It has the following advantages:


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.


ND Series High Air Pressure DTH Hammers With Foot Valve
Item Description Weight(kg)
ND35 ND45 ND55 ND55C ND65 ND85 ND1120
1、Top Sub 4.2 6.5 15 13.7 20 41 70
2、“O” Ring Of Top Sub 0.01 0.01 0.01 0.01 0.02 0.02 0.04
3、Breakout Ring 0.01 0.2 0.8
4、Chenck Valve 0.2 0.42 1 1 1 1.5 3
5、Spring 0.02 0.04 0.04 0.04 0.04 0.1 0.1
6、Compression Buffer 0.04 0.04 0.08 0.08 0.08 0.42 1
7、Air Distributor 1.4 2.2 3.7 3.5 5 12.5 20
8、Internal Cylinder 1.6 2.3 4.5 4.2 5 8.6 23
9、Piston 5.4 9 15.5 17.2 23.6 41 125
10、External Cylinder 9.5 15 30 26.5 36.8 62 170
11、Guided Sleeve 1.2 2.4 9.6 16
12、“O” Ring Of Stop Ring 0.01 0.01 0.01 0.02 0.02 0.02 0.04
13、Stop Ring 0.2 0.2 0.3 0.5 0.6 1.2 4.5
14、Breakout Ring 0.01 0.2 0.8
15、Drive Chuck 1.95 3.5 6.4 4.5 6 17.5 48
16、Drill Bit 5 9 16 15.6 26 40 120
Technical Data
Length(Without Bit) ND35 ND45 ND55 ND55C ND65 ND85 ND1120
930mm 1045mm 1214mm 1160mm 1248mm 1492mm 1900mm
Weight(Without Bit) 25.00kg 39.00kg 76.50kg 72.50kg 100.00kg 188.00kg 480.00kg
External Diameter Ø82mm Ø99mm Ø126mm Ø126mm Ø142mm Ø144mm Ø180mm/Ø185mm Ø275mm
Ø146mm Ø148mm
Bit Shank NHD3.5 COP44/DHD340 COP54/DHD360 COP55C/DHD350Q COP64/DHD360 COP84/DHD380 CDHD1120
Hole Range Ø90-Ø110mm Ø110-Ø135mm Ø135-Ø155mm Ø135-Ø155mm Ø155-Ø190mm Ø195-Ø254mm Ø305-Ø445mm
Connection Thread API2 3”/8REG API2 3”/8REG API2 3”/8REG API2 3”/8REG API3 1”/2REG API4 1”/2REG API6 5”/8REG
API3 1”/2REG API3 1”/2REG
API2 7”/8REG API2 7”/8REG
Working Pressure 1.0-1.5Mpa 1.2-2.0Mpa 1.3-2.3Mpa 1.3-2.3Mpa 1.5-2.5Mpa 1.5-3.0Mpa 2.0-3.5Mpa
Impact Rate at 17 Bar 28HZ 27HZ 25HZ 25HZ 23HZ 27HZ 16HZ
Recommended Rotation Speed 25-40r/min 25-40r/min 20-35r/min 20-35r/min 20-30r/min 20-30r/min 15-25r/min
Air Consumption 1.0Mpa:4.5m³/min 1.0Mpa:6.0m³/min 1.0Mpa:9.0m³/min 1.0Mpa:9.0m³/min 1.0Mpa:10.0m³/min 1.0Mpa:15.0m³/min 1.0Mpa:30.0m³/min
1.5Mpa:9.0m³/min 1.8Mpa:10.0m³/min 1.8Mpa:15.0m³/min 1.8Mpa:15.0m³/min 1.8Mpa:20.0m³/min 1.8Mpa:26.0m³/min 1.8Mpa:56.0m³/min
2.4Mpa:15.0m³/min 2.4Mpa:23.0m³/min 2.4Mpa:23.0m³/min 2.4Mpa:28.5m³/min 2.4Mpa:34.0m³/min 2.4Mpa:78.0m³/min
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Tel:+86-13889196063
Add:No. 95-2, blacksmith Road, Hunnan District, Shenyang, Liaoning