Select a bucket with right capacity for your excavator

Large-sized hydraulic excavators are frequently used for the unloading work in the quarry project. Actually, this machine is of great significance for the whole pace of the project. Choosing the right bucket and teeth at the end of the stick will not only be helpful to reduce the operation costs, but also improve the productivity, probably more than you think.

Capacity is the main factors in bucket selection. To have a right capacity bucket, you need consider beforehand the machine lifting and breakout capabilities, material density and also the truck match. Machine capacity means how much lifting force the machine has for the bucket and payload at a given reach. Material density tells you the weight of a bucket load at ideal 100-percent fill conditions. The rock and stone fill is an exception, and usually, we estimate a 90 percent fill factors or less for shot rock.

At last, but not least, is the truck match, which actually is a prerequisite factor to think about in deciding the size of the bucket. Generally speaking, four or five passes is a perfect match for a large excavator in the 75-100 ton size. But if you need faster loading speed, you need think again the size and configuration of the bucket. It’s worth mentioning that a bigger bucket doesn’t always reduce loading time, since it may lead to less flexibility in digging and the resulting less production gain.

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Sany Large Excavator Working for Mining Project

With the fast development of mine construction, the demand for large excavator has become larger and larger. Focused on improving self-innovation and R&D capability, Sany has been in the leading position of excavator manufacturing and sales for many years. With excellent performance and super design, Sany diggers are well-received both in China and abroad.

Specially designed for mineral construction, Sany hydraulic excavator is improved in many aspects. The broadened and lengthened chain board, the strengthened X frame and the enhanced jibs greatly improve the machine’s safety and reliability. Equipped with reliable engine and hydraulic control system, the large excavator has the features of high efficiency and low fuel consumption. The board under the bucket rod is strengthened, which not only highly extends the rod’s service life but also improves the machine’s digging force. What is more, the bucket rod adopts advanced robot automatic welding and online examining technology, making the welding level reach the first-class standard in China. What is more, the heavy-duty chassis system greatly enhances its stability.

The excellent performance in controllability, stability, durability and digging force not only make the large excavator become the best digging tool in mine construction but also make it stable and reliable enough to create the maximum profits for customers. Winning high recognition from customers, Sany large digger possesses an increasing market share since its launch and is entitled with “the fighter of the mine”. 

View Video of excavator: 

Sany 22 Ton Excavator SY220C-9 Works in The Quarry:

 http://www.sany.in/video/100.html

Sany 48 Ton Excavator SY480 in Action: 

http://www.sany.in/video/2.html

Long-Arm Excavator, the Fighter of excavators

Different from other excavators, the long-arm excavator adds an extension jib between the machine body and the working arm, which is supported by oil cylinder. And one working jib oil cylinder and one bucket oil cylinder are installed on the long arm, for which one set of oil cylinder operating system is equipped to support the movement of the two oil cylinders. All of these designs double the moving range of the large excavator bucket, which can go higher, deeper and further. The great changes make the long-arm excavator especial for minerals, docks, storage and emergency rescue.

The long-arm excavator has the following advantages:

1.       Need less labor

The high mechanization and simple operation of the long-arm excavator makes higher efficiency and shorter working schedule possible.

2.       High quality

In order to guarantee the reliability of the long-arm excavator in working process, strict quality standard is made to better guarantee the construction quality.

3.       High safety

The distance between the operator and the operating object is long to reduce dangers in the working process.

4.       Strong practicability

The long arm of the excavator can work in the tough place where other excavator can’t reach, and it meets the requirements of various construction sites.

The maintenance of the long-arm excavator

Good maintenance can extend the service life of the long arm and enhance working efficiency, especially in tough environment.

1.       Have the long arm greased at least two times every day. After working in muddy water, wash the machine before adding fuel. Check the joints of the working device to make sure it has enough fuel before starting working. Don’t add new oil until completely pushing the aging oil out by operating the swing arm, rod and bucket for several times.

2.       Wash the machine after working in the shore to remove the salt, and add machine oil if necessary. In cold winter, the piston rod should be put back to the hydraulic cylinder to avoid the clay and water sticking to the piston rod and damage the seal ring of the hydraulic cylinder.

The long-arm excavator should observe the following guidelines:

1.       When making a rotation, the long-arm of the excavator should be 0.5 meters high from the ground.

2.       Forbid knocking the heavy excavator vigorously when the bucket is working, walking and rotating are not allowed either.

3.       The piston rod of hydraulic cylinder should not move to the bottom, safe distance should be reserved.

4.       The long arm should not be overloaded.

5.       Don’t dig directly in the rocky area, crush the rocks before excavating.

6.       The bucket load should match with the specified standards; overload will shorten the life of the long arm and the excavator.

SY245H-high quality of mine hydraulic excavator

SY245H is a new kind of mine hydraulic excavator product. Sany has designed it for small and medium mining heavy working conditions, and aims to improve customer investment. Compared with other brands, it has many features such as extended endurance, superior performance, low maintenance costs, easy access to management, and high adaptability.

Through 15 years of accumulation, relying on Sany's large excavator design experimental system, the service life of SY245H in mine working condition exceeds 15000h, 20% higher than ordinary excavators.

With structural optimization design, stress test, weld and plate research and some other advanced methods, Sany improves the service life of the key structure and reduces the rate of failure to 5%.

SY245H’s core components consist of a main pump, a main valve, an oil cylinder, and a reducer. Depending on the core components durability test system and cooperating with famous international research institutions, Sany devotes himself to research on core components and improves core components service life. The Oil cylinder, reducer and other hydraulic components must reach the industry standard before being used. This can ensure components service life 30% higher than the ordinary brands.

SY245H ‘s main valve is KMX15RB / b45217a-v valve, it is designed on the basis of the original KMX15RB upgrade optimization, it has high reliability, small pressure loss and high flow distribution efficiency, and smooth action compound and other advantages to help customers easily solve heavy work.

SY245H’s engine is D06FRC engine, in line with the three emissions standards. The emissions torque is 20% larger than foreign brands in general. It is powerful to be suitable for mining high torque operations.

Website: www.sanyglobal.com