NSD Series High Air Pressure DTH Hammers Without Foot Valve | ||||||||||||
Item Description | Weight(kg) | |||||||||||
NSD4A | NSD5A | NSD6A | NSD8A | NSD10A | NSD12A | |||||||
1、Top Sub | 6.5 | 13.7 | 20 | 34 | 59 | 70 | ||||||
2、“O” Ring Of Top Sub | 0.1 | 0.015 | 0.015 | 0.015 | 0.03 | 0.04 | ||||||
3、Breakout Ring | - | - | - | 0.3 | 0.5 | 0.8 | ||||||
4、Chenck Valve | 0.35 | 0.7 | 0.7 | 1.2 | 1.4 | 2 | ||||||
5、Spring | 0.05 | 0.1 | 0.1 | 0.1 | 0.3 | 0.1 | ||||||
6、Air Distributor | 1.5 | 2 | 3.5 | 6 | 10.5 | 16 | ||||||
7、Internal Cylinder | 2.1 | 2.8 | 4.2 | 6.5 | 12.5 | 25 | ||||||
8、Piston | 8.5 | 15 | 23 | 42.5 | 77 | 113 | ||||||
9、External Cylinder | 15.3 | 24 | 28 | 59 | 110 | 175 | ||||||
10、Guided Sleeve | 1.3 | 2.6 | 2.5 | 6 | 11.5 | 25 | ||||||
11、“O” Ring Of Stop Ring | 0.005 | 0.01 | 0.01 | 0.01 | 0.01 | 0.01 | ||||||
12、Stop Ring | 0.2 | 0.5 | 0.5 | 1.2 | 1.5 | 4.5 | ||||||
13、Breakout Ring | - | - | - | 0.3 | 0.5 | 0.08 | ||||||
14、Drive Chuck | 4 | 7.5 | 7.5 | 16 | 31.5 | 48 | ||||||
15、Drill Bit | 9.8 | 16 | 27 | 37 | 108 | 165 | ||||||
Technical Data | ||||||||||||
Length(Without Bit) | NSD4A | NSD5A | NSD6A | NSD8A | NSD10A | NSD12A | ||||||
1012mm | 1090mm | 1011mm | 986mm | 1110mm | 1110mm | |||||||
Weight(Without Bit) | 40.00kg | 70.00kg | 43.20kg | 37.00kg | 69.00kg | 66.00kg | ||||||
External Diameter | Ø99mm | Ø126mm | Ø146mm | Ø180/Ø185mm | Ø226mm | Ø275mm | ||||||
Bit Shank | SD4 | SD5 | SD6 | SD8 | SD10 | SD12 | ||||||
Hole Range | Ø110-Ø135mm | Ø155-Ø190mm | Ø155-Ø203mm | Ø195-Ø254mm | Ø254-Ø311mm | Ø305-Ø445mm | ||||||
Connection Thread | API2 3”/8REG | API2 3”/8REG | API3 1”/2REG | API4 1”/2REG | AP6 5”/8REG | API6 5”/8REG | ||||||
API3 1”/2REG | ||||||||||||
API2 7”/8REG | ||||||||||||
Working Pressure | 1.2-2.0Mpa | 1.3-2.3Mpa | 1.5-2.5Mpa | 1.5-3.0Mpa | 2.0-3.5Mpa | 2.0-3.5Mpa | ||||||
Impact Rate at 17 Bar | 30HZ | 28HZ | 25HZ | 22HZ | 20HZ | 20HZ | ||||||
Recommended Rotation Speed | 25-40r/min | 20-35r/min | 20-30r/min | 15-25r/min | 15-25r/min | 15-25r/min | ||||||
20-35r/min | ||||||||||||
Air Consumption | 1.0Mpa:6.0m³/min | 1.0Mpa:7.0m³/min | 1.0Mpa:9.0m³/min | 1.0Mpa:12.0m³/min | 1.8Mpa:14.0m³/min | 1.0Mpa:28.0m³/min | ||||||
1.8Mpa:9.0m³/min | 1.8Mpa:14.0m³/min | 1.8Mpa:18.0m³/min | 1.8Mpa:22.0m³/min | 2.4Mpa:65.0m³/min | 1.8Mpa:50.0m³/min | |||||||
2.4Mpa:14.0m³/min | 2.4Mpa:19.0m³/min | 2.4Mpa:26.0m³/min | 2.4Mpa:28.0m³/min | 2.4Mpa:71.0m³/min |