DTH drilling is a percussion system driving a piston inside hammer
body with up and down motion by compressed air and transmitting an
intensive percussion energy to the bit to enable the drilling by
crushing the rock. Drilling method by DTH hammer exerts high
drilling performance especially for drilling hard rock and
contributes for shortening work schedule. Hence, this method is
widely utilized for foundation work, landslide prevention work,
quarrying services, marine civil work, etc.
Advantages:
- Advanced hammer designs with high power and air efficiency
increases productivity
- Tailored product offering covers all your applications and
conditions
- Easy service and maintenance designs reduces machine downtime
- Generic and proprietary shank options give you flexibility and
reliability
DTH hammers specifications:
| Hammers | Bit Shank | Connection Thread | Suitable bit | Working pressure | Air consumption |
1-3" Middle-low pressure
DTH hammers | BR1
BR2
BR3 | RD40 box
RD50 box
API 2 3/8" Reg | Φ64-Φ76mm
Φ70-Φ90mm
Φ90-Φ110mm | 0.7-1.75Mpa | 0.7 Mpa | 4.5 m3/min |
| 1.0 Mpa | 4 m3/min |
| 1.4 Mpa | 5 m3/min |
| 3" hammers | DHD3.5
COP32/COP34
M30 | API 2 3/8"Reg | Φ90-Φ110mm | 1.0-1.5Mpa | 1.0 Mpa | 4.5 m3/min |
| 1.5 Mpa | 9 m3/min |
| 4" hammers | DHD340
COP44
QL40
SD4
M40 | API 2 3/8"Reg | Φ105-Φ130mm | 1.0-2.5Mpa | 1.0 Mpa | 6 m3/min |
| 1.8 Mpa | 10 m3/min |
| 2.4 Mpa | 15 m3/min |
| 5" hammers | DHD350
COP54
QL50
SD5
M50 | API 2 3/8"Reg
API 3 1/2"Reg | Φ130-Φ156mm | 1.0-2.5Mpa | 1.0 Mpa | 9 m3/min |
| 1.8 Mpa | 15 m3/min |
| 2.4 Mpa | 23 m3/min |
| 6" hammers | DHD360
COP64
QL60
SD6
M60 | API 3 1/2"Reg | Φ152-Φ203mm | 1.0-2.5Mpa | 1.0 Mpa | 10 m3/min |
| 1.8 Mpa | 20 m3/min |
| 2.4 Mpa | 28.5 m3/min |
| 8" hammers | DHD380
COP84
QL80
SD8
M80 | API 4 1/2"Reg | Φ200-Φ279mm | 1.0-2.5Mpa | 1.0Mpa | 15m3/min |
| 1.8Mpa | 26m3/min |
| 2.4Mpa | 34m3/min |
| 10" hammers | SD10
NUMA100 | API 6 5/8"Reg | Φ254-Φ330mm | 1.0-2.5Mpa | 1.0Mpa | 22m3/min |
| 1.8Mpa | 40m3/min |
| 2.4Mpa | 55m3/min |
| 12" hammers | DHD1120
SD12
NUMA120
NUMA125 | API 6 5/8"Reg | Φ305-Φ381mm | 1.0-2.5Mpa | 1.0Mpa | 30m3/min |
| 1.8Mpa | 56m3/min |
| 2.4Mpa | 78m3/min |
DTH bits specifications:
| Hammer inch | Bits diameter | Shank |
| Metric | Inch |
| 1" | 64mm-70mm | 2 1/2"-2 3/4" | BR1 |
| 2" | 70mm-95mm | 2 3/4"-3 3/4" | MACH20/BR2 |
| 3" | 90mm-102mm | 3 1/2"-4" | COP32/COP34/MACH303
M30/DHD3.5/BR3 |
| 4" | 105mm-152mm | 4 1/8"-6" | COP44/DHD340/MACH44
SD4/M40/QL40 |
| 5" | 133mm-165mm | 5 1/4"-6 1/2" | COP54/DHD350R/MACH50
SD5/M50/QL50/BR5 |
| 6" | 152mm-254mm | 4 1/8"-10" | COP64/DHD360/SD6
M60/QL60/Bulroc BR6 |
| 8" | 203mm-330mm | 8"-13" | COP84/DHD380/SD8
QL80/M80 |
| 10" | 254mm-380mm | 10"-15" | SD10
NUMA100 |
| 12" | 305mm-508mm | 12"-20" | DHD1120/SD12
NUMA120/NUMA125 |
We can design and manufacture according to customer's requirement
of the Bit DiaNo. Air holescarbide button shape and the face shape.
High air pressure and low air pressure.
All products are compatible with many products manufactured by ,
Atlas Copco, etc, all our products are widely used in mining,
tunneling, quarrying, construction, and civil engineering project.
Q1.Why choose us?
A1. High quality products. Good price, professional team work,
Enough ability to export.
Q2. Where are our products applied to?
A2.Mine, tunnel,slope,foundation pit.
Q3. Do you have different quality for different kind of stone?
A3. Yes, according hardness of stone and stone’s feature, we have
different typology respectively.
Q4. If we need technical support, can you offer us?
A4. Yes, we have an experienced team, offering our customers
additional benefits with specific advice, by our
product managerment staff, engineers and technicians.
Q5. Do you offer free samples?
A5. Normally we do not offer free samples, but we could properly
adjust according to detailed requirement.
Q6. Is there cheap shipping cost to import to our country?
A6. For small order, Express will be the best.
And for bulk order, sea ship way is best but take longer time.
For urgent orders, we suggest via air to airport or by Express send
to your door.
Q7. Which Express company you send? How many days we can receive?
A7. We are official partner of TNT, UPS, DHL, Fedx. it will take
only 3-5 days after we sent.
Q8. When you can reply to me when I send you an Inquiry?
A8. We promise to reply within 24 hours( including holidays) on
receipt of your inquiry.
Q8. Are you a manufacturer or trading company?
A8. We are manufacturer.
