Sany C8 pump truck: three "flood powers" conquer the East African savannah

The Mombasa Port-Nairobi Mongolia-Nairobi Railway in Kenya (hereinafter referred to as the "Mongolia-Nairobi Railway") is located in eastern Africa, with a total length of 480 kilometers, and construction began in December 2014. This is a huge system project of China*5658 breaking through the standard system of developed countries, using Chinese funds, Chinese standards, Chinese design, Chinese technology, Chinese construction, Chinese equipment, and even Chinese operation and Chinese services.

▲Sany concrete pump truck,Mixer truck, cranes and other equipment participated in the construction of the Mongolia-Nairobi Railway

A total of 120 equipment such as Sany concrete pump trucks, concrete mixing plants, crawler cranes, truck cranes, excavators, and rollers are active in the construction along the Mongolia-Nairobi Railway, and "Sany Red" has become a beautiful landscape at the construction site, of which Sany "Dragon and Elephant Dance" C8 series concrete pump trucks quickly conquered the East African steppe with three "flood powers".

Boom stability, intelligent shock absorption and precise pouring

Kenya is dominated by a tropical savannah climate, with obvious precipitation and a long rainy season, and the pump boom up to tens of meters high is easily affected by the wind and rain of the vast grassland when working at height, which intensifies the jib shake amplitude, resulting in inaccurate watering points, thus affecting the quality of the entire project, which requires the pump boom to have good stability during the construction process.

▲Sany C8 series concrete pump truck adopts intelligent shock absorption technology

The C8 series pump truck used by the Mongolia-Nairobi Railway is a new concrete pump truck jointly developed by Sany and Putzmeister of Germany. The C8 series pump boom, the "unicorn arm" of this concrete pumping equipment, can be called an example of the combination of exquisite technology between China and Germany. The C8 has technologies such as one-button determination, intelligent vibration reduction of the boom, and rotation anti-swing control to ensure the stability of the boom during operation:

(1) No matter how much the boom vibrates after moving, with just one button, the C8 boom will stop immediately and steadily, and the end hose will be quickly and accurately positioned to achieve watering operation.

(2) *The United States integrates German Putzmeister technology, which effectively reduces the jib jitter during the C8 pumping process, reduces the amplitude by 50%, and the end hose is firmly in hand.

(3) The C8 also adopts a new rotary brake technology, which reduces the rotation and swing of the boom by 60% to achieve the most precise braking in the front.

The reliability of the boom and the high durability of the components make the whole vehicle worry-free

In the Mongolia-Nairobi Railway, the progress of the project is the indicator that customers care about, so the engineering equipment needs to run continuously 24 hours a day, and the reliability of the equipment is particularly prominent. The rocks in Kenya have the special characteristics of volcanic rock, with high hardness, which is extremely worn on equipment, especially pump trucks, and is many times more reliable than previous projects. Moving forward with the project as planned and on schedule is even more challenging in the East African savannah.

▲ Sany C8 high-durability components make the vehicle worry-free

The C8 series pump trucks are clearly well equipped to meet the challenges of wear and tear in the East African savannah. From the small to the big, the reliability of the pump truck is equipped from the details of many high-durability components, especially the high wear and wear parts to make the whole vehicle worry-free:

Conveyor pipes: straight pipes, hinged pipes, large bends, and small bends all adopt double-layer composite structures, and the inner layer is extremely wear-resistant, with a service life of up to 4~60,000 square meters.

Outlet, transition sleeve: double-layer composite structure, the inner sleeve is made of special steel, the wear resistance is 15 times that of ordinary steel, and the service life is as high as 6~80,000 square meters.

Concrete piston: rubber concrete piston, extremely pressure-resistant, heat-resistant, wear-resistant, adaptable to various harsh working conditions, service life up to 2~30,000 square meters.

Glasses plate, cutting ring: the world's first automatic brazing technology, the alloy and the matrix are firmly embedded; Patented double-ring split alloy structure avoids alloy chipping and water leakage. The service life of the glasses plate is 5~80,000 square meters, and the service life of the cutting ring is 2~40,000 square meters.

Conveyor cylinder: the hardness of the inner chrome plating reaches HV900 or above, and the service life reaches 10~140,000 square meters.

Boom safety, automatic diagnosis escorts the whole vehicle

In the face of the continuous advance of the construction period of the Mongolia-Nairobi Railway, the progress of the project has been accelerated, and the relative equipment operation intensity has further increased. How to ensure the continuous normal operation of the pump truck? How to diagnose the problem of the equipment *5656 time? What measures should be taken to ensure the safety of equipment operators? A series of construction safety concerns are put before construction.

▲ Sany C8 automatic diagnosis technology

Sany C8 series pump truck has automatically turned on the fault self-diagnosis technology from the start of the machine, which has insight into the status of the equipment at all times, real-time monitoring and diagnosis of more than 150 faults, which can effectively shorten the troubleshooting time by 70% and win the guarantee for the completion of the project construction progress on schedule.

In addition, the boom overload protection technology also has a lot of provenance, adding a safety valve device to the boom cylinder balance valve, when the boom load is too large, it automatically releases the overload oil pressure to protect the boom from damage.

The key parts of the hydraulic pressure adopt automatic oil level detection and protection technology to monitor the hydraulic oil reserve status in real time, and automatically warn or stop pumping when the oil volume is low to ensure that the hydraulic system is not damaged.

As a model of China's engineering equipment to the world, Sany C8 series pump truck also has high-end technologies such as intelligent boom system one-click retraction arm, limited boom activity height, locking boom posture, etc., representing the world's *5661 level of intelligent manufacturing of concrete pumping equipment.