Tower crane has a horizontal jib frame, a jib-trolley radius-changing mechanism and a hydraulic self-raising mechanism.  It is original in design, reliable in operation and satisfactory in shape.  Equipped with all necessary safety devices, these cranes show a good speed-control capacity, satisfactory operating stability and high work efficiency.
Top kits tower crane is widely used in infrastructure construction ,high-speed rail,oil fields,large ports,nuclear power,wind power and other construction fields.



>>>Feature
1.Suitable for all kinds of construction project and can work under all kinds of work condition.
 2.It has high working speed, good speed-adjusting performance, steady operation and high  efficiency.
 3.The crane has complete set of safety devices, which can guarantee the safe and high efficienct  operation of the equipment.
 4.Three-speed motor and mono-speed ratio decelerator are applied in the lifting struction, which  enables heavy load low speed and light load high speed.
 5.Planet gear decelerator is applied in the circumgy rating structure, together with moment-limiting  hydraulic coupler, which can realize high load capacity, steady starting and reliable operation. 
>>>Main Parameters

>>>What we can supply

>>>Product Detail



>>>Our Service

1- One year warranty for whole machines. 

2- Providing free quick-wear part.

3- Low charge for continue maintenance when warranty is expired. 

4- Exclusive engineer support at any time.

5- We can provide free training to end-users

6- OEM service is available.

7- We can provide on-site service in some countries and areas where we have overseas office or agents.

 >>>Cooperate Case


>>>Packing Transportation


 

1.What should I supply if I want to know the price?

If you want to send inquiry to us, please supply the following parameters:

   A.Tip load and Max. load(Ton) of the tower crane

   B.Jib length (m)

   C.Height(m)

Then we will supply the price as soon as possible.

Please feel free to contact with us!
Ms.Mika 
Shandong Tavol Construction Engineering Co.,Ltd
Tel:0086-538-8520698 Fax:0086-538-8520697
Mobile: +86 13287635200
 

Reverse Circulation Water Well Drilling Rig

Reverse circulation (or RC as it`s more commonly known) drilling is an essential tool in the mining industry. In addition to other oil rigs and drill rigs, reverse circulation drills assist in the productivity and accuracy in mining jobs.

RC drilling is a drilling method involving a large rotary drill and Air Compressor that yields high quality mineral and rock samples, free from contamination and material interference.

It is the preferred method of mineral exploration, drilling and in-pit grade control because it is fast and cost-effective.

What is RC Drilling?
Much like air core drilling, RC drilling returns cutting to the surface through an inner tube inside the rod. This is achieved by blowing air down the rods at a rate up to 1500 Pascals. This creates a pressure differential that pushes cuttings and water up via air lift.

The drilling component is powered by a pneumatic reciprocating piston (also known as the hammer), which drives a steel drill bit.

The two most commonly used drilling bits in RC systems are the fixed cutter and roller cone, both of which are advantageous depending on the project and geographical location of the site.

RC drilling is primarily used on large machinery and drill rigs and often goes to depths of 500 metres.

High quality RC equipment also has the ability to dry out the rock with large air compressors before the drill hits, which provides dry rock chips and, in turn, better samples.

Reverse circulation drilling is the predominant technique based on a number of advantages.
.A higher percentage of uncontaminated cuttings
.Drilling rate similar to open hole drilling, but can often be faster and penetrate greater depths
.One of the most accurate drilling methods
.Quick retrieval of sample rates
.Dry samples allow for easier analysis

Reverse Circulation drilling rig for water well investigation,mineral ores survey

Henan YK Prospecting Machinery Co., Ltd , https://www.yydthdrillingrig.com