| After-sales Service: | Support |
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| Warranty: | 1 Year |
| Certification: | CE, ISO 9001:2000, ISO 9001:2008 |
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Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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| Payment Method: |
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| Initial Payment Full Payment |
| Currency: | US$ |
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| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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Suppliers with verified business licenses
Audited Supplier 
JZF-D positive and negative circulation drilling rig is a crawler type drilling rig that integrates positive circulation and reverse circulation drilling functions. The positive circulation is mainly used for drilling sandy soil, and the reverse circulation is mainly used for slime or pebble. This drilling rig can easily handle the drilling of soil, sand, slime, and pebble layers. It has been widely used in drilling wells, farm irrigation wells, and engineering pile holes.
Features: Fast drilling speed. Due to the high rising flow rate of the flushing fluid in the drill pipe and the strong slag discharge capacity of the pipeline, the cuttings and pebbles in the well can be directly extracted out of the well. Therefore, there is little accumulation of cuttings at the bottom of the well, which greatly reduces the number of repeated grinding and crushing times. Reverse circulation drilling relies on the static pressure and osmotic pressure of the flushing fluid to keep the hole wall stable and reduce the blocking of the aquifer in the well by the mud. Therefore, it is easier to clean the well and the water output after the well is completed is larger.
| Model | JZF-D |
| Drilling diameter (m) | 300-1000 (Reverse cycle) |
| Drilling diameter (m) | 200-850 (Positive cycle) |
| Drill rod specifications | φ140*2000 |
| Reverse circulation pump moto (kw) | 15 |
| Hydraulic oil pump (hp) | 4 |
| Machine weight (T) | 3.2 |
Features:
-The steel wire rubber track chassis is adopted to reduce the walking noise of the vehicle and not hurt the road when walking on urban roads.
-The crawler chassis is equipped with hydraulic outriggers to facilitate the leveling of the rig.
-The walking chassis is equipped with an electric start diesel engine, which reduces the labor intensity of the operator, especially in cold seasons.
Suppliers with verified business licenses
Audited Supplier 
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