AFD25A

2” High Air-Pressure DTH Hammers without foot valve.

2″ High Air-Pressure DTH Hammers without foot valve are compact and efficient drilling tools, designed for creating boreholes in challenging terrains using pressurized air for both hammering and debris removal.

Replacement Parts | Item DescriptionWeight Kg
1. Top Sub (Back Head)3.10
2. Check Valve (Stop Valve)0.10
3. Spring0.05
4. Control Tube (Air Distributor)0.60
5. Internal Cylinder (Internal Sleeve)0.80
6. Piston3.80
7. External Cylinder (Outer Sleeve)6.30
8. Bit Guide Bush (Guided Sleeve)0.60
9. “O” Ring of Stop Ring0.005
10. Half Moons and Bit Retaing Ring (Stop Ring)0.10
11. Chuck Nut (Drive Chuck)1.40
12. Drill Bit---
TECHNICAL DATA
Length (Without Bit)872mm
Weight (Without Bit)16.9Kg
External DiameterØ71mm
Bit ShankHD25A (Remove Foot Valve)
Hole RangeØ76-Ø90
Connection ThreadT42 x10 x1.5 | T48 x 10
Working Pressure1.0-1.5Mpa
Recommeded Rotation Speed22-35r/min
ADVANTAGES
High performance in hard and soft formations
Spares and services locally available
Faster drilling speed and lower air consumption
Fewer internal parts
All parts heat treated

Available Hammers