Product Description

The primary working principle of the air lift reverse circulation drilling rig relies on the isothermal expansion of compressed air within the liquid, which is then utilized to lift the liquid, facilitating reverse circulation drilling. To elaborate, compressed air is conveyed through a double-walled drill pipe to a designated depth within the well, where it combines with the liquid inside the drill pipe, creating a gas-liquid mixture with a density less than that of the flushing liquid. Under the influence of the water column pressure within the annular gap outside the drill pipe, this mixture ascends at a rapid pace, continuously expelling rock debris from the hole's base to the surface.
Detailed Photos
Product Parameters
Model |
Parameters |
Drillingcapacity |
Max drillingdepth |
300m |
Max drillingdiameter |
325mm |
Engine |
Engine brand |
yunnei/cummins |
Rated power |
85/75Kw |
Feedsystem |
Lifting force |
12T |
Speed of fastlifting |
30m/min |
Feeding force |
6T |
Speed of fast putting down |
60m/min |
Max feeding stroke |
3600mm |
Rotationsystem |
Rotary torque |
6500/3250Nm |
Rotary speed |
70/140r/min |
Travellingsystem |
Travel speed |
2.5Km/h |
Grade ability |
21° |
Toolwinch |
Lifting force |
1.5T |
Drillingrodsdiameter |
/ |
89/102mm |
Transportdimension |
Length x Width x Height |
5760x1850x2450mm |
Machineweight |
/ |
7000Kg |
Optional access ories |
Welding generator,FoamPump |
Usage scenario

Packaging & Shipping

Company Profile
Wanhai Machinery Co., Ltd., situated in Linyi, Shandong, is a reputable manufacturer specializing in the design, development, production, and distribution of top-notch drilling machinery and equipment. Our extensive product range encompasses a variety of drilling rigs, including oil and gas drilling rigs, water well drilling rigs, core drilling rigs, and more, catering to diverse drilling tasks and scenarios. Our unwavering commitment lies in delivering exceptional products and services that are tailored to meet the specific requirements of each customer. We take pride in our dedicated after-sales team, who promptly and effectively address any concerns or issues that may arise, ensuring utmost customer satisfaction. We eagerly anticipate establishing enduring, reliable, and mutually beneficial relationships with every customer we serve. Should you express interest in our products, please do not hesitate to reach out to us. We assure you that our team will provide you with the necessary information and assistance to make an informed decision.
FAQ
1. Are you a trading company or a manufacturer?
We are a professional manufacturer. Our factory mainly produces water well drilling rigs, core drilling rigs, down-the-hole drilling rigs, pile drivers, etc. The products have been exported to hundreds of countries around the world and enjoy a high reputation all over the world.
2.How to inspect the goods?
1) Support customers to come to the factory for on-site inspection.
2) Support customers to designate third-party companies to inspect goods.
3) Support video inspection.
3.How long is your delivery cycle?
1) In the case of stock, we can deliver the machine within 7 days.
2) Under standard production, we can deliver the machine within 15-20 days.
3) In the case of customization, we can deliver the machine within 25-30 days.
4. What's your terms of payment?
T/T 30% as deposit, and 70% before delivery. We'll show you the photos of the products and packages before you pay the balance.