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High air pressure DTH hammer
High Air Pressure DTH Hammer HD-35A

Technical Parameter
Item Description Weight (KG) Part Number
1. Top Sub 4.20 HD35A-01
2. "O"-Ring of Top Sub 0.01 HD35A-02
3. Check Valve 0.20 HD35A-03
4. Spring 0.02 HD35A-04
5. Air Distributor 0.80 HD35A-05
6. Internal Cylinder 1.30 HD35A-06
7. Piston 5.50 HD35A-07
8. External Cylinder 9.50 HD35A-08
9. Guided Sleeve 1.00 HD35A-09
10. "O"Ring of Stop Ring 0.15 HD35A-10
11. Stop Ring 0.15 HD35A-11
12. Driver Chuck 1.90 HD35A-12
13. Drill Bit   HD35A-13
Product data  
Length(Without bit) 888mm
Weight(Without bit) 25.0Kg
Bits shank Cop34/HD35/DHD3.5
External diameter Φ82mm
Bits diameter Φ90-Φ115mm
Connection Thread API 2 3/8"Reg
Working Pressure 1.0-2.5Mpa
Impace rate at.1.7Mpa 25Hz
Recommended rotation speed 25-40r/min
Air consumption 1.0Mpa

Note:The following parameters take DHD3.5 without foot valve DTH hammer as an example. We also can provide Mission30 , Cop32 , QL30 , BR3 series DTH hammers to you.