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| Place of Origin: | China |
| Brand Name: | MIROC |
| Certification: | ISO |
| Model Number: | QL50 DTH Hammer |
| Minimum Order Quantity: | 1 |
|---|---|
| Price: | negotiation |
| Packaging Details: | Wooden Plate |
| Delivery Time: | 25 days |
| Payment Terms: | T/T or L/C |
| Supply Ability: | 20000 pieces per month |
| Applicable Industries: | Energy & Mining | Material: | Carbon Steel |
|---|---|---|---|
| Color: | Green Or Customized | Application: | Water Well, Mining, Quarrying |
| Name: | Dth Hammer | Usage: | Borehole Drilling |
| High Light: | ql50 high pressure dth hammer,underground mining high pressure dth hammer |
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QL50 High Pressure Down The Hole Hammer Underground Mining Breakout Bench DTH Hammer Drilling
Description
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.
• Small to medium size drilling diameters
• Works in low pressure range, capable of drilling shallow to medium hole lengths
| Product name | DTH Hammer |
| Material | Alloy Steel&Tungsten Carbide |
| Use | Underground Mining,Water well,Mining,Quarry etc. |
| Color | Green&Others |
| Heat treatment | Anneal |
| Shank series | DHD,COP,MISSION, SD, DHD, BR, QL, BR,CIR etc. |
| Application | heavy construction,Ore Drilling, mining, oil and gas, quarries |
| Hole | 60-305mm |
| Size | 2/3/4/5/6/7/8/9/10/12/14 inches |
| Advantage | High Performance and factory price |
Applications
• Underground mining
• Quarry benching operations
• Water well drilling
Competitive Advantage
• Main hammer components manufactured from high grade steel and processed using state-of-the-art CNC machinery and heat treatment
Specification
| Air distribution of 5"hammer without valve to utilize the bit with blow tube | ||||
| Product Structure | Part Description | Weight(Kg) | Part Number | |
 |
1 | Top Sub | 13.7 | QL50-01 |
| 2 | “O” Ring of Top Sub | 0.015 | QL50-02 | |
| 3 | Breakout Ring | 0.15 | QL50-03 | |
| 4 | Check Valve | 1 | QL50-04 | |
| 5 | Spring | 0.1 | QL50-05 | |
| 6 | Compression Buffer | 0.1 | QL50-06 | |
| 7 | Air Distributor | 3.5 | QL50-07 | |
| 8 | Internal Cylinder | 4.2 | QL50-08 | |
| 9 | Piston | 19 | QL50-09 | |
| 10 | External Cylinder | 24.6 | QL50-10 | |
| 11 | Guided Sleeve | 0.9 | QL50-11 | |
| 12 | "O"Ring of Stop Ring | 0.01 | QL50-12 | |
| 13 | Stop Ring | 0.4 | QL50-13 | |
| 14 | Drive Chuck | 4.6 | QL50-14 | |
| 15 | Drill Bit | QL50-15 | ||
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Products features: Valveless air distribution hammer, more reliableGood sealability, no water and cuttings entering into hammer in waterexists drilling. Application: Available for al working conditions, highperformance in overburden and water well drilling project. |
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Technical Parameters |
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Length(Without bit) |
Weigth(Without bit) |
External diameter |
Bit Shank |
Hole range |
Connection Thread (top sub-drill pipe) |
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1156mm |
73.0kg |
φ125mm |
COP54 QL50 |
φ135mm-φ152mm |
API2 3/8" Reg API3 1/2" Reg |
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Working Pressure |
Impact rate at17bar (reference) |
Speed recommended |
Pull force recommended |
Reference Air consumption(m³/min) |
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14Bar |
17.2Bar |
20.7Bar |
24Bar |
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10-25Bar |
26Hz |
30-60rpm |
9.5kN |
12 |
15.4 |
18.7 |
22.3 |
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Technical Parameters Of Bits Assorted |
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Head Shape |
Number of head shape |
Head Diameter (mm) |
Part No. |
No. x Button diameter (mm) |
Button angle |
No. of Flushing holes Dia.(mm) |
Weight (Kg) |
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Gauge Buttons |
Front Buttons |
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Flat Face |
Convex Face |
Concave Face |
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|
1 |
φ140 |
QL50-140CV7 |
7xφ18 |
3xφ14 |
4xφ15 |
/ |
38° |
2xφ20 |
15.1 |
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|
1 |
2 |
3 |
2 |
φ140 |
QL50-140FF8 |
8xφ16 |
8xφ14 |
/ |
/ |
38° |
2xφ20 |
15.3 |
|
|
|
|
3 |
φ146 |
QL50-146FF8 |
8xφ18 |
8xφ15 |
/ |
/ |
38° |
2xφ20 |
15.9 |
|
4 |
φ146 |
QL50-146CC8 |
8xφ18 |
4xφ15 |
/ |
3xφ14 |
38° |
2xφ20 |
15.8 |
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|
5 |
φ152 |
QL50-152FF8 |
8xφ18 |
8xφ15 |
/ |
/ |
38° |
2xφ20 |
16.4 |
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|
4 |
5 |
6 |
6 |
φ152 |
QL50-152CC8 |
8xφ18 |
4xφ16 |
/ |
4xφ14 |
38° |
2xφ20 |
16.2 |
Q: How about the delivery terms?
A: Payment:T/T, L/C, Western Union, 30% deposit in advance +70% balance before shipment.
Q. Min. order
A: Quantity: 1 piece.
Q.Transportation
A: By DHL/TNT/Fedex express, air, sea, train.
Q: How about discount?
A: Price is based on products and order quantity.
Q: Do you accept sample order?
A: Yes sure, please contact us for details.
Q: How about your after-sales service?
A: As a manufacturer, we offer promote technology support for all problems and questions. Besides, we accept goods return or
replace for quality problem.
Contact Person: Mr. Yingkai Zhang
Tel: +86 18501231988
