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Help CenterAPI REG Thread High Air Pressure DTH Hammer for Water Well Drilling 90 - 455 mm Dia
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Certification:ISO,CE
API REG Thread High Air Pressure DTH Hammer for Water Well Drilling 90 - 455 mm Dia
3.5inch high air pressure dth hammer for 3.5\'\' DHD3.5 , COP 34 , QL30 Shank drill bit
Introduction
It is a kind of valveless high air pressure DTH hammer with foot valve.
The rock hammer has the fellow advantages
1: Valveless air distribution. more reliable.
2. The rock impacter are simple design of the piston, long life.
3. More efficient energy transfter,faster drilling speed, lower air consumption and lower oil consumption.
4. Fewer internal parts, simple structure, long life, less failure and easier to maintain because all the parts are heat treated.
5. Easy to disassemble because the top sub, the drive chuck and the external cylinder are connected multi-step thread.
Hammer shank available:
1. BR shank series: BR1, BR2, BR3;
2. Cop shank series: Cop32, Cop34, Cop44, Cop54, Cop64, Cop84;
3. DHD shank series: DHD3.5, DHD340,DHD350, DHD360, DHD380;
4. SD shank series: SD4, SD5, SD6, SD8, SD10, SD12, SD15, SD18;
5. Mission shank series: Mission40, Mission50, Mission 60, Mission 80;
6. QL shank series: QL30, QL40, QL50, QL60, QL80;
7. NUMA shank series: NUMA120, NUMA125, NUMA180, NUMA240;
Other hammer shanks can be available according to customer\'s drawing or samples.
Technical Parameters of High air pressure DTH hammer with foot valve
Specification
| Item Description | Weight | Parts No. | |
| 1.Top Sub | 4.2 | HD3501 | |
| 2.O-Ring of Top Sub | 0.01 | HD3502 | |
| 3.Check Valve | 0.2 | HD3503 | |
| 4.Spring | 0.02 | HD3504 | |
| 5.Compression Buffer | 0.02 | HD3505 | |
| 6.Air Distributor | 1.4 | HD3506 | |
| 7.Internal Cylinder | 1.5 | HD3507 | |
| 8.Piston | 5.6 | HD3508 | |
| 9.External Cylinder | 9.9 | HD3509 | |
| 10.O-Ring of stop ring | 0.01 | HD3510 | |
| 11.Stop Ring | 0.15 | HD3511 | |
| 12.Drive Chuck | 1.9 | HD3512 | |
| 13.Drill Bit | 5 | HD3513 |
| Technical Data | |||||
|
Length(Less bit) |
Weight(Less bit) |
External Diameter | Bit Shank | Hole Range | Connection Thread |
| 930mm | 25.0kg | 82mm | DHD3.5 | 90-110mm | API 2-3/8\'\'REG |
| Working Pressure | Impact rate at 0.5 Mpa | Recommended Rotation Speed | Air Consumption | ||
| 1.0-1.5Mpa | 28HZ | 25-40r/min | 1.0Mpa | 1.5Mpa | |
| 4.5m3/min | 9.0m3/min |
Picture
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