4'' High Air Pressure DTH Hammer for Mining Compatible with Bit Shank HD45A
4'' High Air Pressure DTH Hammer for Mining Compatible with Bit Shank HD45A
Product description:
Sollroc's DTH hammer and bit are made by finest mechanical process, special heat treatment with intensive quality control by our engineers. With such effort, we have been manufacturing various products which have outstanding drilling speed, and pressure intensity with effective air pressure transmission.
Therefore, our products are widely utilized in wide range of construction sites.
Product Advantages:
1. Capable of drilling in practically any type of ground.
2. Constant energy behind the bit allows for faster drilling with less power loss and better hole accuracy.
3. The elimination of foot valve associated with the drill bit offers various technical and economical advantages.
4.The air flowing through the hole ensures efficient flushing and cleaner holes. With the same hammer, you may make a variety of hole diameters.
DTH Hammer specification:
HD45A hammer
| shank | HD45A |
| Length(less bit) | 1011mm |
| External diameter | 92mm/99mm (optional) |
| Top sub thread | API 2 3/8”REG |
| Weight(less bit) | 39kg |
| Hole range | 110mm-130mm |
| Working pressure | 1.0-2. 5Mpa(145-362.5psi) |
| Impact rate at 1.7Mpa | 30Hz |
| Recommended rotation speed | 22-35rpm |
HD45A bit specification
| For 4" hammer DTH bits shank |
Bit Dia. | No. Air Holes |
Gauge Buttons |
Front Buttons |
Weight (Kg) |
Part No. | |
| mm | inch | ||||||
| HD45A |
105 | 4 1/8" | 2 | 6×φ14 | 5×φ13 | 9.0 | DHD340-105 |
| 110 | 4 1/4" | 2 | 7×φ13 | 6×φ13 | 9.3 | DHD340-110 | |
| 115 | 4 1/2" | 2 | 7×φ14 | 6×φ13 | 10.0 | DHD340-115 | |
| 120 | 4 3/4" | 2 | 8×φ14 | 6×φ14 | 11.0 | DHD340-120 | |
| 127 | 5 | 2 | 8×φ14 | 7×φ14 | 12.0 | DHD340-127 | |
Face shape Features:
Concave face is suitable for all-round rock formation, especially for medium hard and homogeneous rock formations,excellent control over hole deviation.
Convex face is suitable for medium hard rock formation.Non abrasive rock formations. High peneration rate.
Flat face is suitable for hard and abrasive rock formation.High peneration rates and resistance to steel wash.
Detailed photos:
Application:
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