—Slippery and bumpy road conditions, frequent manual gearbox failures, and delayed transmission repair parts... In the harsh conditions of the Qingtongxia Xinjing coal mine in Ningxia, even the best drivers are in short supply if suitable equipment is not available. Hazui team leader of Xinjing Coal Mine Co., Ltd. of Xinjing Coal Co., Ltd. understands that it is difficult for manual block trucks to complete their work effectively. This year, the team selected the National Heavy Industry GL8606K420CA6K “Northwestern Wolves” automatic mine car with Cummins ISME42030 engine and Allison 4500ORS gearbox with high reliability.

The “Northwestern Wolves” mine car has to travel 40 miles per day on a mountain slope that exceeds 200 meters in height, with 5 kilometers per mile. Half of the wolf needs to carry more than 30 tons of coal cinder.

The slope of the road in Xinjing Coal Mine is high and bumpy. Due to the dusty road surface and low visibility, the speed limit of the mine car is within 30km/h. Every day, the minecart has to travel 40 miles on a mountain slope that is more than 200 meters high. There are 5 kilometers of coal mines, and half of them need to carry more than 30 tons of coal residue. Throughout the year-round work environment, vehicle reliability is under severe testing. Any suspension of work will affect the completion of the new coal mine with an annual output of over 2 million tons of coal.

Prior to the purchase of 10 "Northwestern Wolf" mining vehicles, the Xinjing coal mine team had been using imported trucks equipped with manual transmissions. Under this harsh working condition, the gearbox, clutch plates and rear axle of the more than 60 manual mining vehicles in the mining area have been extremely worn. The challenging terrain and terrain conditions require vehicles to constantly shift gears, resulting in frequent vehicle failures. It takes a month or more to import original spare parts from foreign manufacturers. Guardian Security said that nearly 50 manual trucks had been shut down for repair at the same time, and the driver’s shutdown cost a loss of three to four thousand yuan a day.

The "Northwestern Wolf" car dumped 30 tons of muck on the edge of an almost vertical cliff. The cliff is the Gobi Desert.

Contrasting to the frequent failures and high maintenance costs of manual mine-recovery vehicles, National Automobile Heavy Industries Corp. clearly stated to the team that the “Northwestern Wolf” car equipped with Allison transmission can ensure 90% or even higher attendance. Since the operation of the mine car, the whole vehicle factory has never paid the penalty for the failure of the vehicle to meet the standard. In fact, the Allison transmission has never failed and its outstanding performance has been recognized by the driver.

Allison automatic transmission can automatically select the gear according to the road conditions, ensuring the best shifting strategy

Allison Transmission automatically selects gears based on road conditions to ensure optimal shifting strategies. Automatic gearboxes also reduce vehicle wear while significantly reducing driver fatigue. Whether on roads or on muddy roads and steep slopes, Allison transmissions operate smoothly and efficiently, improving vehicle operating performance and ensuring fleet operating efficiency.

The advantages of Allison's easy-to-operate gearbox were praised by Wei Security. He quickly adapted to the operation of the automatic truck. "The automatic transmission greatly reduces the need for training for the driver, reverses the driver's bad operating habits, reduces damage to the transmission and the vehicle, and extends the service life," Wei added.

The No. 1 work well of the Xinjing Coal Mine on a steep cliff stretches toward the vast Gobi Desert. Every day, the security guards drove the “Northwestern Wolf” mining vehicle equipped with Allison transmissions, filled with cinders, and headed for a rough and steep slope. As soon as the car approached the edge of the cliff, he stopped the car steadily. During the whole process, the vehicle did not produce shocks and shocks, nor did he roll the car and slide forward. Afterwards, the “Northwestern Wolf” truck dumped 30 tons of dregs at an almost vertical cliff edge. The danger of operation was extremely high. The security guards were very relieved: “Allison transmissions have high reliability and good handling performance. What to worry about? of?"

Both the security guards and the drivers have experienced that when manually blocking vehicles on a long slope, they tend to slip, and the Allison transmission ensures that the power of the mine car is continuously transmitted to the drive wheels, and that the vehicle load climbs the long slope without effort. . The team leader of the Xinjing coal mine, Ha Quanyou, stressed that “We need a mine truck with excellent performance, strong load-bearing ability, and low failure rate. The Allison transmission's 'Northwestern Wolf' mine car is our first choice.”

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