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High air pressure DTH hammer
High Air Pressure DTH Hammer HD-55A

Technical Parameter
Item Description Weight (KG) Part Number
1. Top Sub 6.5 HD45A-01
2. "O"-Ring of Top Sub 0.01 HD45A-02
3. Check Valve 0.42 HD45A-03
4. Spring 0.04 HD45A-04
5. Air Distributor 2.20 HD45A-05
6. Internal Cylinder 2.3 HD45A-06
7. Piston 9 HD45A-07
8. External Cylinder 15 HD45A-08
9. Guided Sleeve 1.3 HD45A-09
10. "O"Ring of Stop Ring 0.1 HD45A-10
11. Stop Ring 0.2 HD45A-11
12. Driver Chuck 3.5 HD45A-12
13. Drill Bit   HD45A-13
Product data  
Length(Without bit) 1011mm
Weight(Without bit) 43.2Kg
Bits shank Cop44/DHD340/HD45
External diameter Φ99mm
Bits diameter Φ110-Φ135mm
Connection Thread API 2 3/8"Reg
Working Pressure 1.0-3.0Mpa
Impace rate at.1.7Mpa 30Hz
Recommended rotation speed 25-40r/min
Air consumption 1.0Mpa

Note:The following parameters take DHD340A without foot valve DTH hammer as an example. We also can provide Mission40 , Cop44 , QL40 , SD4 series DTH hammers to you.