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Help CenterQuarry Middle Air Pressure Down The Hole Hammer for Sales
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DTH Hammer are one of our main products. It is durable for being produced with advanced craftwork and good material.After many years search, we have rich experience in development and manufacturing high quality products, which adopted high-quality raw materials, advanced technology and passed through strictly inspection.
It has many Advantages as below:
1. Deliver maximum energy to drilling bit, fast drilling speed and low air consumption
2. Smooth performance and long service life
3. Low problem rate and easy to maintenance
4. Easy to depart bit from hammer
5. Interchangeable with dth bit and drill pipe
Middle-low air pressure DTH hammer
HBR1A,HBR2A and HBR3A series DTH hammers are designed to operate efficiently at low air pressures and medium air pressures, using BR series bits.
The main features are as follows:
1.The operation air pressures are between 0.7Mpa to 1.75Mpa;
2.Valveless hammers;
3.Simple structure, easy to assemble and to disassemble, long life;
4.Higher impact frequency and faster drilling speed;
5.Lower air consumption and lower oil consumption. A hole can be drilled on the check valve to provide more efficient cuttings discharge.
6.Especially suitable for quarrying.
Technical Data:
DTH hammer type |
HBR1A |
HBR2A |
HBR3A |
|
Length(less bit) mm |
760 |
880 |
889 |
|
Weight(less bit) kg |
10 |
14.5 |
26 |
|
External diameter mm |
Φ54 |
Φ62 |
Φ82 |
|
Bit shank |
BR1 |
BR2 |
BR3 |
|
Hole range(mm) |
Φ64-76 |
Φ70-90 |
Φ90-110 |
|
Connection thread |
RD40 Box |
RD50 Box |
API 2 3/8"Reg |
|
Working pressure |
0.7-1.75Mpa |
0.7-1.75Mpa |
0.7-1.75Mpa |
|
Impact rate at 1.4Mpa |
27Hz |
25Hz |
25Hz |
|
Recommended Rotation speed |
25-40r/min |
25-40r/min |
25-40r/min |
|
Air consumption |
0.7Mpa |
1.5m3/min |
2.5m3/min |
4.0m3/min |
1.0Mpa |
2.5m3/min |
4.0m3/min |
6.0m3/min |
|
1.4Mpa |
3.0m3/min |
5.0m3/min |
8.0m3/min |
|
Breakdown Design and Spare Parts List
| SN. | Item description | weight(kg) | ||
| Hammer | HBR1A | HBR2A | HBR3A | |
| 1 | Top sub | 1.7 | 2.6 | 5.2 |
| 2 | "O" ring of top sub | / | / | 0.01 |
| 3 | Check Valve | 0.1 | 0.1 | 0.2 |
| 4 | Spring | 0.05 | 0.05 | 0.02 |
| 5 | Air distributor | 0.8 | 0.6 | 0.8 |
| 6 | Internal cylinder | 0.8 | 0.8 | 1.3 |
| 7 | Piston | 1.2 | 3.8 | 5.5 |
| 8 | External cylinder | 4 | 4.5 | 9.5 |
| 9 | Guide sleeve | 0.15 | 0.6 | 1 |
| 10 | "O" ring of stop ring | 0.05 | 0.005 | 0.05 |
| 11 | Stop ring | 0.1 | 0.1 | 0.15 |
| 12 | Drive chuck | 0.8 | 1.2 | 2 |
| 13 | Drill bits | 1.7 | 2.5 | 4 |
This Middle air pressure DTH hammer can be used in such industies as energy, transportation, building, quarrying etc.
Packing details can be customized as per your requirement (it could be plywood case, plastic box or carton...)
Timely shipment can be made upon our negotiation
Xiamen Bestlink Factory Co., Ltd. is committed to providing the best drilling and cutting machines, tools and accessories products in marble and granite stone quarrying, as well as in civil engineering application, especial demolition project. Our company is now a leading manufacturer of cutting and drilling equipment for the extraction of marble, granite and ornamental stones in China.
1. Our factory has been specialized in manufacturing drilling and cutting machine and spare parts since 1980.
2. We have advanced technology and equipment.
3. Our technician has more than 36 year’s professional working experience.
4. Main Market: Brazil, Chile, Colombia, Uruguay, Australia, Ukraine, Ruassia, Norway, Turkey, USA, Canada, Iran, Malaysia, Thailand, India, etc.
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. Delivery Time
Based on order quantity, normally it takes 25 days for production.
Only 2 or 3 days if we have stock on your request model and 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:
1) Our sales team will response for your question within 24 hours (Holidays Excluded)
2) Technical Support will be available in any time.
Send Inquiry to This Supplier
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