17,966 hours! A thumbs-up to the model worker of Sany SY245H Mine!

In mining, the working conditions are complex. Only those with excellent quality can stand the strict test. Recently, a SY245H from a Sany customer has gone viral with a construction period of 17,966 hours. Just by looking at the numbers, people may not have a clear idea. A slight conversion: It's equivalent to working 8 hours a day for 2,250 consecutive days without a break. No problem for a model worker in the mine!

Five major details, full of sincerity

SY245H is specially designed for heavy-load working conditions in small and medium-sized mines. With its superior features such as "extremely long service life, superior performance, ultra-low maintenance cost, strong adaptability and extremely easy management", it has been recognized and praised by a large number of mining users. It is understood that this SY245H has been undergoing high-intensity construction at a certain cement plant. During its operation, the equipment management has been standardized, and genuine parts have been used for maintenance strictly in accordance with the maintenance nodes. Major key components have always been operating normally, ensuring the smooth progress of the project!

Next, we will introduce the highlights of the SY245H model to you. We hope it will be helpful for you to understand the SY245H.

First-class core configuration

The custom-imported six-cylinder Mitsubishi D06FRC engine is highly competitive in terms of engine power among models of the same tonnage. The entire machine is powerful, fast, efficient, and more durable and reliable.

Exclusive customized Kawasaki hydraulic pumps feature outstanding advantages such as "low noise, high efficiency and high pressure". It adopts a high-pressure specification rotating mechanism, which increases the bearing life by 20% and is more suitable for the high-torque operation requirements in mines.

The Kawasaki hydraulic valve with the largest flow rate in the same tonnage model and the thickest steel pipe diameter in the same tonnage model are adopted, effectively reducing the energy loss of the entire hydraulic system. It is highly efficient, durable and reliable.

Advanced control system

It adopts a brand-new fourth-generation hydraulic system: the positive flow hydraulic system. By applying international advanced test and evaluation technologies, through reasonable flow distribution and precise power matching calculation, it achieves an accurate match between the engine and the main pump. Under common working conditions, the excavation efficiency is higher, the fuel consumption is lower, and the sensitivity is faster.

Upgrade of the heat dissipation and filtration systems

The hydraulic oil circuit selected the currently best-performing plate-fin fin structure from 150 types of fins through simulation calculation, analysis, and wind tunnel test comparison.

Diesel fuel line three-stage fuel filtration system + double-layer filter element. In view of the current situation of mine oil products and electronically controlled engines, a three-stage filtration configuration is adopted. Each stage of the filter uses imported composite filter materials (nano-scale synthetic filter materials), with higher filtration accuracy and efficiency than similar models, which can well protect the fuel injection system.

The hydraulic oil circuit adopts nanomaterial filter paper to achieve deep filtration in response to the harsh operating environment in mines. Absolute filtration of impurities in the hydraulic oil is carried out to maintain the cleanliness of the entire hydraulic oil circuit at an "excellent" level, ensuring that critical hydraulic components such as pumps, valves, motors, and cylinders remain unchanged throughout their lifetime.

Durable structural components

The standard bucket is a 1.3-cubic-meter bucket, and a 1.5-cubic-meter large-capacity bucket can be optionally equipped, increasing the loading capacity by 10%. The working time is 1,200 hours. Stone excavation has been carried out and the bucket teeth have been replaced, but the main structure of the bucket remains intact.

An investment of 200 million yuan was made to introduce two-axis fatigue testing equipment for the verification of the large and small arms. The most severe working conditions were simulated and the cycle was completed 500,000 times to ensure that the large and small arms had no cracks for 15,000 hours.