| After-sales Service: | Online Technical Services |
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| Warranty: | Online Technical Services |
| Certification: | CE |
| Shipping Cost: | Contact the supplier about freight and estimated delivery time. |
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Reverse Circulation Drilling Rig is a new multi-purpose, high-efficiency, environmental protection, multi-track-type rig. reverse circulation drilling technology, rock dust can be effectively collected through a dust collector to avoid environmental pollution.You can also collect slagging cyclone separator can be used in geological prospecting department of sampling analysis.
https://sanrock.en.made-in-china.co

| Model | SR-300RC |
| Max drilling depth(m) | 300 |
| drilling diameter(mm) | φ325 |
| Rated power(kw) | 74 |
| Lifting force(T) | 12 |
| Speed of fast lifting(m/min) | 30 |
| Feeding force(T) | 6 |
| Speed of fast putting down(m/min) | 60 |
| Max feeding stroke(mm) | 3600 |
| Rotary torque(Nm) | 6500/3250 |
| Rotary speed(r/min) | 70/140 |
| Travel speed(km/h) | 2.5 |
| Grade ability(°) | 21 |
| Lifting force(T) | 1.1 |
| Drilling rods diameter(mm) | 76/89/102 |
| Transport dimension(mm) | 5760x1850x2450 |
| Machine weight(T) | 7 |
Feature:
1. Diesel engine mounted hydraulic system,all the system include the walking,rotation,feed,lifting,Leg,lifting, compensation system,rod change is hydraulic.
2. Drill head with dual motor drive has a variable speed and wide speed range.It is suitable for the application of pneumatic DTH hammer drilling and alloy drilling.
3.Reverse circulation system working together with DTH technology, air compressor provide pressed air for impact and dust collect.
4. During working,use the reverse circulation hammer,double tube,pressed air enter between two tube and dust out from the inner tube.
5. The working system composed of feed system,guide(mast),rotary head, compensation system, centralizer,rod exchange cystem, winding and so on.
6. Rig with power head has long feed stroke so that it can shorten the time of installing or unloading drill rods and improve the drilling efficiency.
7. The drilling diameter is large,the drilling depth is deep, and the advancing speed is fast.
8. Drilling rig chassis1, Professional excavator chassis, durable, heavy load bearing, wide chain board,four hydraulic leg use for keep the balance of the drilling during working.










