Xi'an Huizhong Mechanical Equipment Co., Ltd.
Xi'an Huizhong Mechanical Equipment Co., Ltd.
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QL40 QL50 QL60 QL80 dth hammer and bits for rock drilling,water well,mining
DTH hammer and drill bit made of high quality alloy steel, through advanced heat treatment, to ensure good drilling performance and longer service life. Widely used in mining, quarry, water well drilling and so on.
All products are in accordance with international standards, compatible with Atlas Copco, Ingersoll Rand, and other brands.
2 Product Data of Rock Drilling Bits
| Item DescriptionItem | 8. External Cylinder |
| 1. Top Sub | 9. Guided Sleeve |
| 2. "O" Ring of Top Sub | 10. "O" Ring of Stop Ring |
| 3. Check Valve | 11. Stop Ring |
| 4. Spring | 12. Breakout Ring |
| 5. Air Distributor | 13. Drive Chuck |
| 6.Internal Cylinder | 14. Retainer |
| 7. Piston | 15. Drill bit |
| 3" (inches) | DHD3.5/COP32/COP34/QL30/M30/BR3/ BR33/XL3/Mach303 | API 2 3/8" Reg | 90-110mm |
| 4"(inches) | DHD340/COP44/QL40/SD4/M40/ Mach44/TD40(COP44 gold) | API 2 3/8" Reg | 110-135mm |
| 5"(inches) | DHD350/COP54/QL50/SD5/M50 | API 2 3/8" Reg API 3 1/2" Reg | 135-155mm |
| 6"(inches) | DHD360/COP64/QL60/SD6/M60/TD60 (COP64 gold) | API 3 1/2" Reg | 155-190mm |
| 8"(inches) | DHD380/COP84/QL80/SD8/M80 | API 3 1/2" Reg | 195-254mm |
| 10"(inches) | SD10/NUMA100 | API 3 1/2" Reg | 254-311mm |
| 12"(inches) | DHD1120/NUMA120/NUMA125 | API 6 5/8" Reg | 305-445mm
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