5” DTH Hammer QL50 Top Sup Thread Connection 3 1/2" API Reg Pin
With Foot Valve
QL50 DTH Hammer Description:
5.0” Hammer QL50 Top Sup
Thread Connection: 3 1/2" API Reg Pin
Bit Shank: QL50
Type: with foot valve
Feature: top sup have tungsten carbide buttons.
P/N4148301741
Photos:
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.
• The 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 disassemble because the top sub, the drive chuck, and the
external cylinder are connected by multiple steps thread.
DTH Hammer Package Photos
Company Information
KSQ Technologies (Beijing) Co. Ltd. has significant experience and
know-how in the supply of materials, components, finished goods,
specially designed/engineered equipment, and services from China.
The company caters to medium to large scale clients who are doing
projects and capital expansion, as well as to firms who require
support with consumable products, maintenance, and repair
operations.
