Cummins Heavy-medium, Small-sized and High-horsepower Engines Debut at Shanghai BMW Exhibition
On November 23, 2010, at the 2010 bauma China Construction Machinery Exhibition, Cummins launched the import of off-highway engines that met the most stringent emission regulations, the newly upgraded and further expanded domestic engine products, and key components such as filtration and post-processing. . Cummins meets advanced engine products and technologies for Tier 3, Tier 4 and Tier 3 emissions regulations in Europe and America, realizes new electronically upgraded localized engine products, and key components that meet more stringent emissions and performance requirements It laid the foundation for Cummins to provide Chinese construction machinery customers with more diversified product platforms in the future. The Cummins Tier 4 engine, which represents the latest trends in off-road emissions technology, is one of the key highlights of this year's show.
Cummins representatively displayed several models of engine products suitable for small, medium, heavy-duty and high-horsepower engineering equipment at the exhibition site. The displacement ranged from 3.3 to 50 litres, and the power coverage ranged from 60 to 2200 hp. It was mainly based on electronically controlled engines. . The diverse exhibits include the QSB 6.7Tier4 all-electric engine that meets today's most stringent emission standards, the first Tier 3 product Cummins pioneered in 2004 - the proven QSM11 litre flagship engine, and the upcoming QSZ 13L, QSN14 new products. The luxury power lineup shows Cummins' strong technical reserves and innovation. It is also the best embodiment of Cummins' future focus on building the most suitable products and technologies for Chinese construction machinery and vehicle customers.
At the bauma exhibition, Dongfeng Cummins Engine Co., Ltd. brought in the QSD medium-sized engine series that successfully achieved the electronically controlled upgrade and the QSZ13-liter heavy-duty engine products that were planned to be put into production. For the first time, Chongqing Cummins Engine Co., Ltd. demonstrated the planned QSN series of electronically controlled engine products to the public.
These new electronically controlled off-highway engine product platforms have been developed according to the characteristics of domestic applications. They can meet the needs of domestic engineering equipment for intelligent control, fault diagnosis and early warning functions, and are in line with Cummins globally uniform quality standards. They are strong and durable, and they have lower efficiency. , More environmentally friendly, focusing on strict global emissions standards for development. The QSD mid-engine is developed on the basis of Cummins' prestigious B series. It uses high-pressure common rail technology to further optimize low-speed torque and good low-temperature startability. The QSZ13 heavy-duty engine is an off-highway mechanical power product developed for the future. It has passed 35,000 hours of endurance test and has excellent high altitude adaptability, strong power, electronic control and good torque response. The QSN 14-liter engine is developed for the Chinese market, with heavy-duty torque, good fuel economy, and easy handling. It is a proven upgrade product of the NT855 mechanical diesel engine. The K50 high-horsepower engine can be described as the "giant" at this exhibition. It has a displacement of 50 liters and a V-type cylinder. It uses mature and reliable PT fuel technology with a power of 1250-2200 hp. It is by far the most powerful Cummins production in China. The engine is also one of the lowest cost and most durable engines in the Cummins Global Horsepower family.
Technological innovation is an important driving force for the creation of economic value and social value. It is of great significance for improving the environment, saving energy, promoting industry progress, and achieving the sustainable development of the company. In the course of 91 years of development of Cummins, technological innovation and customer service Has always been the main theme of the company's development, but also the core values ​​we always adhere to. As an expert power equipment manufacturer, Cummins continues to develop products that meet the needs of the market and customers, leading the way in terms of power, fuel efficiency, electronic control, emissions, etc.; and constantly optimize engine products to meet the diversified needs of different customers. The performance of the product provides global customers with products with higher reliability and durability, and on the basis of meeting more stringent emission regulations, further improves the efficiency of fuel use.
In China, Cummins has also been striving to support the development of Chinese construction machinery companies with innovative technologies and products. The Cummins powered construction machinery products are not only widely used in the Chinese market, but also have successfully penetrated into overseas markets. From the product and technology level, Cummins' diversified products can meet the power requirements of different Tier1-Tier 4-phase engineering equipment in different markets around the world, providing a wealth of options for diversified and multi-level overseas strategies of China Construction Machinery OEM. In this process, Cummins not only helped China OEM customers successfully break through the environmental protection and technical barriers in the international market, but also provided excellent distribution advantages and performance performance. The company's distribution service system in more than 190 countries around the world was used by overseas Chinese construction machinery companies in the battle It also played an important supporting role.
As the first Tier 4 product introduced by Cummins leading the industry, QSB 6.7Tier4Interim uses a more compact cooled exhaust gas recirculation system (EGR), variable area turbocharger (VGTTM), particulate filter (DPF) and DC Air Filter (DirectFlowTM). With integrated system integration technology from intake to post-discharge processing, QSB 6.7Tier4 received the Gold Award for Innovative Design for Leadership in Lifting Equipment and Aerial Platforms (LLEAP) in North America and Silver Award for LLEAP Component Innovation Design with its new Cummins DC Filtration System design. QSB 6.7 has a stable and reliable product structure and can easily upgrade the Tier4Final emission standard (to be implemented in 2014). Currently, Cummins has developed Tier4 solutions for many domestic OEMs that focus on the development of the international market.
Since Cummins launched QSB6.7 (6.7 liters, 174-300 hp) and QSL9 (8.9 liters, 240-400 hp) meeting Tier 4 standards in 2009, four new Tier 4 models were introduced at the beginning of this year. They are 3.3 liters, 4.5 liters, 11.9 liters and 15 litres, respectively, and they cover 75-600 horsepower. Cummins Tier 4 engine has more than 40,000 hours of operational test time under actual operating conditions, improved fuel economy by 5% compared to the previous stage, and shortened the work cycle time of the host equipment, resulting in higher work efficiency.
Cummins continues to strengthen its after-sales service network. In the Chinese market, Cummins has increased its investment in providing nationwide service outlets and laying customer support platforms in all provinces. In terms of spare parts supply, technical training and service hardware and software support, Cummins strengthens its support for distributors and end users, and further synergies with its overall service network resources in China to create a first-class service system based on customer orientation.
In addition, as the engine company with the most complete network layout in the world, Cummins will continue to fully support the overseas strategies of Chinese companies and use Cummins global distribution service network to work closely with Chinese OEM customers to complete the overseas layout of Chinese construction machinery and vehicle companies.
The main indicators of this series of equipment basically reach the level of similar international products (such as Nielsen gold selectors, etc.). Compared with similar equipment at home and abroad, this series of equipment has the advantages of high cost performance, easy operation, and low maintenance costs.
The actual use of mining enterprises has proved that the recovery rate of placer gold is above 95%, especially when the single gold in vein gold mines is recovered, when the grinding particle size is less than 0.074mm accounting for 65%, the recovery rate of single gold can reach 98% Above, the recovery rate of 0.04mm monomer gold is over 97%. The discharge cycle is 1 to 4 hours, and the enrichment ratio can reach 1000 times.
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Changchun Gold Research Institute Co.LTD , https://www.changchungoldresearch.com