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①. Base: CAT 336DL(HHP)
②. Max pile diameter (mm): 2200
③. Max pile depth (m): 85
④. Engine: CAT C9 ACERT 261KW
⑤. Maximum nominal torque (kNm): 280
⑥. Undercarriage with expandable (mm): 3000-4300
……More info  

1. Adopts the complete OEM Caterpillar retractable-crawler dedicated chasis,Its telescopic scope between the two crawler ends extends from 3000mm(at transportation) to 4400mm(at work). Undercarriage with expandable and removable tracks by means of hydraulic cylinders, guarantee exception stabbility in any type of ground. It has considerable traction force which allows easy movement even in the most difficult job sites.
2.Takes international top CAT Diesel engine with electric injection, turbocharged and air inter-cooling system. It is high reliability, fuel economy and power reserves. Emissions meet standard EPAC-Ⅲ.
3.The winches are positioned in the lower part of the mast, in front of the cabin, so that the operator can constantly check the proper operation. Thanks to the fact that the cable moves parallely to the mast, flection is not created on the upper part of the mast and operating life of the cable is therefore much longer. Tail positioned winch is available for heavy-duty type.
4.New design parallelogram system, computer optimized design and simplified pin connection system featured with nice appearance, great driving force and good stability, especially shaped to fit crowd system, allowing working radius adjustment always maintaining the mast in vertical position. The parallelogram system is easily for convenient transform between transportation and working conditions.
5.Self-erecting mast, high level anti-shock technology and high-strenth material steel attribute to that max torque can be applied all over the mast length. Multipurpose design for cylinder crowed system. Sensor and control center realize real-time measurement of the inclination angle, auto adjustment of mast verticality and inching adjustment.
6.Crowd system by means of long stroke hydraulic cylinder or crowd winch separately, are option for your exact request.
7.Rotary head with variable displacement motors and one high spin off speed. And rotary is extremely reliable, it has been disgned in order to gurantee a very compact, efficient and powerful rotary. The transmission group of rotary is made up of a hydraulic motor and new power shift purposely studied and designed to obtain maximum perfomance. During the drilling phase, the rotary has the entire power of the diesel at its complete disposal. Adapter of rotary is essential to absorb the considerable shock connected to the high speed of the main winch.
8.Telescopic kelly bar with guide made by high quality specially for high boring strength and torque force. Available with friction or inter-locking type.
9. All the main hydraulic components(pumps, valve, motor, connector) are from well-known international brands such as Bosch-Rexroth, brevini, which ensure the stability, reliability, high-efficiency and energy-saving of the entire system
10.Electronic controlling system is an innovative system, developed by Osaint, which controls and monitors the operation of the machines. For ease of operation, the system is controlled by a touch screen located in the cab. The system function is to enable the machines to perform different functions more efficiently. A dedicated power module electronic control and CAN-Bus system ensures the main pumps and Disel engine to work at their most effective and productive stages.

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Q:Why not use rotary drilling rig instead of manual digging pile?
1, can not find the right rig.2, on a drilling rig drilling too difficult.3, have luck, want to save money.
Q:I love inventing super rotary drilling rigs. Can they dig wells? Can they move rocks? How deep can they hit?
Because now the double power head drill wells with rotary drill rod is rotary drill, but few are more than 2 meters in diameter with direct rock itself, very fast, low cost of the machine drill many times than rotary drilling. I suggest you check the pile hole drill on the Internet, or the China Sea Hengtong, it is easy to find information.
Q:What are the hidden dangers during the construction stage of rotary drilling rig?
A rotary drill is used in the high water level areas or Plains. The soil is clay, water silt, silty soil, artificial backfill and gravel, gravel stratum containing part. The digging process is the basic soil mud rushed out, not every time to pull the bit put out the soil, it is necessary to use mud, but this wall is very fragile, whether it is empty or keep drilling, hole inside and outside of the head, the water is too high to slurry leakage and hole collapse, the water level is too low will be water seepage hole collapse into the hole. But the speed is very fast.
Q:How heavy is the 250 auger rig?
250 rotary excavation, weighing about 70-80 tons
Q:Price of small rotary drilling rig
Tengzhou Kai Ao Construction Machinery Co., Ltd. small rotary drilling rig, piling depth between 1-40 meters, the pile mouth diameter range is 0.2-2.2 meters, the price is: 13.5-68 million between
Q:Rexroth leveling sensor rotarydrilling rig
Intake air temperature sensorRole: provide air temperature information for correction of fuel injection and ignition timing. Effect: idle speed is low, easy to flameout.
Q:What kind of stratum is suitable for rotary digging pile?
Core auger bit is suitable for crushed stone soil, medium hardness rock and weathered rock formation. Core rotary bucket, applicable to weathered rock and cracked rock.
Q:How much oil is used in the 31 rotary drilling rig?
Check whether the gear oil quantity of the reducer is adequate and the oil quality is normal;
Q:What are the advantages and disadvantages of the construction of the bored pile with auger and rotary drilling? Another auger can drill 1800 diameter piles?
Suitable for a variety of spiral drilling geological layer, and the hole diameter can reach 3.5 meters (I did at the start of 90s); rotary drilling rig only for certain efficiency with gravel clay layer or work, but for the rock layer, sand layer is not; and rotary drilling rig can not drill deep hole (more than 30 meters deep is more difficult).
Q:The relationship between rotary drilling and impact drilling and reverse circulation drilling
The main difference is the construction process. Rotary drilling rig adopts the technology of making mud, drilling bucket, rotating soil and injecting hole. Mud does not produce circulation.

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