Place of Origin: | China |
Brand Name: | MIROC |
Certification: | API |
Model Number: | DTH Hammer |
Minimum Order Quantity: | 1 Piece DTH Hammer |
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Price: | negotiation |
Packaging Details: | Carton Box or Wooden Box |
Delivery Time: | 25 days |
Supply Ability: | 20000 pieces per month |
Name: | DTH Hammer | Series: | CIR, BR, COP,DHD,MISSION,QL,SD,NUMA |
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Size: | 3'', 3.5'', 4'', 5'', 6'' ,8'', 10'', 12'' Etc. | Type: | With Foot Valve, No Foot Valve |
Use: | Tunneling, Mining,Quarrying,Water Well | Color: | Green,Black ,Orange ,Blue,Golden |
High Light: | down the hole drilling tools,down hole hammer |
High Pressure Down The Hole Drill DTH Hammers With Ql50 Bit Shank
In DTH hammers, the rock drilling bit is a continuation of the shank, which the rock drill piston strikes directly. Since the piston is in direct contact with the drill bit, little energy is lost. This gives DTH hammers a nearly constant penetration rate regardless of hole length.
Basic Information
Items | Replacement Parts |
1 | Top sub |
2 | O-ring of top sub |
3 | Breakout Ring |
4 | Check Valve |
5 | Spring |
6 | Compression Buffer |
7 | Air Distributor |
8 | Internal cylinder |
9 | Piston |
10 | External cylinder |
11 | Guide sleeve |
12 | O-ring of stop ring |
13 | Stop ring |
14 | Breakout ring |
15 | Drive chunk |
16 | Drill bit |
Drilling Diameter(mm) | Hammer Length(mm) | External Diameter(mm) | Weight(kg) | ||||
φ135-φ155 | 1156(without bit) | 125 | 73(without bit) | ||||
Working Pressure(Mpa) | Air Consumption(m³/min) | ||||||
1.3-2.3 | 1.0Mpa: 9m³/min | 1.8Mpa: 15m³/min | 2.4Mpa: 23m³/min | ||||
Impact rate at 17 bar | Connection Rod Thread | Recommended Rotation Speed | Bit Shank | ||||
25HZ |
API 3 1/2'' Reg API 2 7/8'' Reg |
25-40r/min. |
QL50 (with foot valve) |
Applications
• Underground mining
• Down the hole rock drilling
Competitive Advantage
• Valveless air distribution, more reliable.
• Simple design of the piston. Long life span.
• More efficient energy transfer, faster drilling speed, low air consumption and lower oil consumption.
• Fewer internal parts, simple structure, less failure and easier to maintain.
• Easy to disassembled because the top sub, the drive chuck and the external cylinder are connected by multiple steps thread.
Photos
Contact Person: Mr. Yingkai Zhang
Tel: +86 18501231988