| After-sales Service: | Technical Support Will Be Available in Any Time |
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| Warranty: | 12 Month |
| Condition: | New |
| Customization: |
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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 1. APPLICATION
GDL-350 is energy efficienctly. It solves the difficult problems of air DTH hammer drilling in soil layers and low construction efficiency of rotary drilling rigs for hard rock layers, gravel and pebble layers.
Core drilling NQ/HQ/PQ
Air drilling + DTH hammer
Mud drilling with mud pump
2.FEATURES
a. The drill speed can reach 33-1120r/min, and the maximum output torque is 9800N.m.
b. The drilling rig adopts a long-stroke double-speed mechanism, a mechanical power head, and a power head stroke of 2300mm, which is used to improve drilling efficiency and reduce the occurrence of drill blocking and burning accidents.
c. The drilling rig adopts double oil pumps for oil supply. A single pump is used when drilling, and two pumps are used for confluence when lifting and lowering the drill. The power loss is small and the auxiliary time is short.
d. The crawler chassis is adopted, and the outrigger cylinder stroke is 1.5m, which can be loaded automatically, which is convenient for relocation and transportation.
3.MAIN SPECIFICATION
Drilling depth for water well:300m(152mm~203mm)
Wireline coring NQ size:450~500m
Borehole (Drill bit) dia.:Ø75~Ø350mm
| Drilling capacity | Drilling depth for water well | 200m(152mm) |
| Wireline coring NQ size | 300m | |
| Borehole (Drill bit) dia. | Ø75~Ø220mm | |
| Drilling angle | 90° | |
| Drive head | Lifting capacity | 100KN |
| Thrusting capacity | 50KN | |
| Rotary speed RPM | Forward:33,63,113,162,192/ 237,303,537,906,1120 r/min | |
| Reverse:48/219 r/min | ||
| Max. torque | 9800N.m | |
| Power Unit | Engine Model | YN27 |
| Rated power/speed | 42KW (58KW Optional)/ (2400r/min) | |
| Mechanical winch capacity | 4.5 Ton | |
| Drill pipe | Drill pipe dia. | Ø50/ Ø60 / Ø76/ Ø89mm NQ/ HQ /PQ |
| Drill pipe length | 2000mm | |
| Mud pump(optional) | BW160/ BW200/ BW250 | |
| Generator(optional) | ||
| Air lubricator (Optional) | ||
| Crawler chassis | Walking speed | 0~2 km/h |
| Climbing angle | Max. 25°~30° | |
| High leg stoke | 1.5M | |
| Dimension | Transport | 4600*1900*2540mm |
| Working | 3480*1900*5550mm | |
| Weight with rubber crawler | 4200kg | |
| Weight with steel crawler | 5200kg | |
We can also provide supporting drilling tools,Such as:
Wireline core drill rod/PDC core bit/BQ,HQ,NQ,PQ coring tools/stabilizer/reamer shell/adaptor/Rod wrench/Hoisting pleg etc.
Located in Beijing,China, is an integrated corporation specialized in manufacturing and exporting top quality drilling equipment and drilling parts for decades. We are supported and assisted by a highly experienced team of designers and engineers that enable us to complete all the assigned projects successfully as per the specified requirement from our clients.
Our products are widely used in the scope of mining, water well drilling and exploration, anchor grouting project, side slope protection engineering, oil and gas engineering,underwater rock drilling & blasting operations of seaport channel, hydropower project, national defense projects ect.
Warranty of Core Drilling Rig:
(1)Within the period of the first year after delivery, the main parts are guaranteed to be supplied free of charge once the problem caused by the quality issue.
(2) Service at working site: If need, our technical engineer can be dispatched to the working site for technical service, but the expense of ticket, accommodation, diet, service charge shall be on buyer's account.
(3)Timely after-sale assistance shall be provided all the time.
Suppliers with verified business licenses
Audited Supplier 
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