165mm 178mm DTH Drilling Rig Tools for DHD360 High Air Pressure Rock Button Bits DTH Hammer Drill Bit
China 165mm 178mm DTH Drilling Rig Tools for DHD360 High Air Pressure Rock Button Bits DTH Hammer Drill Bit, Find details about China DTH Hammer Bit, DTH Hammer Drill Bit from 165mm 178mm DTH Drilling Rig Tools for DHD360 High Air Pressure Rock Button Bits DTH Hammer Drill Bit
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Product Description
The Characteristics Of High Air Pressure DTH Hammer
-with foot valve
It is a kind of valveless high air pressure DTH Hammer with foot valve
It has the following characteristics:
Valveless air distribution. More reliable.
Simple design of the piston, long life.
More efficient energy transfer,faster drilling speed,
lower air consumption and lower oil consumption.
Fewer internal parts, simple structure,longer life,
Less failure and easier to maintain because all the parts are heat treated.
Easy to disassemble because the top sub, the drive chuck and the
external cylinder are connected by multistep thread .
Explanation of High Air Pressure DTH Hammer
-With Foot Valve Code
Example One:MD55
M-Maxdrill(Our company name )
D-DHD Bit Shank
5-5"hammer
5-The Fifth Generation Hammer
Example Two:MQL4
M- Maxdrill(Our company name )
QL4-QL40 Bit Shank
| High Air Pressure with foot valve DTH Hammers | |||
| Item | Item Description | Weight(kg) | Part Number |
| 1 | Top Sub | 6.50 | MQL401 |
| 2 | "O"Ring of top Sub | 0.01 | MQL402 |
| Check Valve | 0.42 | MQL403 | |
| 4 | Spring | 0.04 | MQL404 |
| 5 | Compression Buffer | 0.04 | MQL405 |
| 6 | Air Distributor | 2.50 | MQL406 |
| 7 | Internal Cylinder | 2.30 | MQL407 |
| Piston | 9.00 | MQL408 | |
| 9 | External Cylinder | 17.00 | MQL409 |
| Guided Sleeve | 0.80 | MQL410 | |
| 11 | "O"Ring of stop Ring | 0.01 | MQL411 |
| 12 | Stop Ring | 0.30 | MQL412 |
| 13 | Drive Chuck | 3.00 | MQL413 |
| 14 | Drill bit | MQL414 | |
| Length(less bit) | Weight(Less bit) | External Diameter | Bit Shank | Hole Range | Connection Thread |
| 1097mm | 41.00KG | 99MM | QL40 | 110-135 | API 2 3/8" REG |
| Working Pressure | Impact Rate At 1.5Mpa | Recommended Rotation Speed | Air Consumption | ||
| 145-350psi | |||||
| 1.0-2.5Mpa | 28Hz | 25-40r/min | 200-600CFM | ||
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FAQ
The information you may like to know before order:
1. Methods of Payment:
T/T (Telegraphic Transfer) or Western Union or L/C at sight
2. Handling time for an order
Based on order quantity, normally it takes 25 days for production.
Only 2 or 3 days if we have stock on your request size.
3. Shipping way
Sample order: we suggest Courier express like DHL/UPS/TNT/FEDEX or by air
Bulk order: we suggest by air or by sea.
4. Quality Control
We have our own experienced QC.
There will be strict inspection and testing for every order before shipping out.
5. After Services:
a. Our sales team will response for your question within 24 hours (Holidays Excluded)
b. Technical Support will be available in any time
c. Free replacement will provide once the failure confirmed caused by our product quality
Contact Information
Contact Person:Ms Sherry Lee
Website:maxdrillrocktools.en.made-in-china.com
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