{"id":5263,"date":"2023-09-11T04:49:00","date_gmt":"2023-09-10T20:49:00","guid":{"rendered":"https:\/\/yixinexcavator.com\/?p=5263"},"modified":"2026-10-09T12:55:10","modified_gmt":"2026-10-09T04:55:10","slug":"in-depth-review-of-cat-320d2-20-ton-excavator-analysis-of-working-conditions-for-mountain-infrastructure-and-mining-projects-in-peru","status":"publish","type":"post","link":"https:\/\/yixinexcavator.com\/fr\/in-depth-review-of-cat-320d2-20-ton-excavator-analysis-of-working-conditions-for-mountain-infrastructure-and-mining-projects-in-peru\/","title":{"rendered":"In-depth Review of CAT 320D2 20-Ton Excavator | Analysis of Working Conditions for Mountain Infrastructure and Mining Projects in Peru"},"content":{"rendered":"

1. Overview of construction machinery export market in September 2023 and regional demand characteristics of Peru<\/h4>\n\n\n\n

In September 2023, the domestic construction market entered the traditional autumn harvest off-season, the progress of earthwork projects in many parts of China slowed down, and domestic excavator sales declined. However, export orders of construction machinery to the South American market continued to grow. As a core infrastructure market in western South America, Peru launched a large number of mountain road construction, mine stripping, small water conservancy and village expansion projects before the rainy season after September. Local contractors seized the dry season window to push forward construction, and the demand for 20-ton used excavators rose rapidly.<\/p>\n\n\n\n

Most construction areas in Peru are located in plateau mountainous environments with undulating terrain, abundant rocks and large temperature difference between day and night. The supply cycle of spare parts in some remote construction sites is very long. Mountain operations put forward high requirements for the climbing ability, overall stability, engine plateau adaptability and hydraulic system impact resistance of excavators. The 20-ton excavator is the most common tonnage for mountain engineering in Peru. It can take into account excavation, rock loading, slope trimming and road subgrade leveling. Compared with large-tonnage equipment, it is more convenient for transportation and transfer, and has stronger mobility on narrow mountain road construction sites. CAT 320D2 is a model highly recognized by local engineering customers in Peru. Targeting the South American market, Hefei Yixin Construction Machinery carries out special inspection on the whole machine and core components of CAT 320D2 for mountain rock working conditions in Peru, helping South American contractors select second-hand excavators suitable for plateau mountain construction sites.<\/p>\n\n\n\n

2. Analysis of basic overall parameters and power system of CAT 320D2 excavator<\/h4>\n\n\n\n

CAT 320D2 is a 20-ton crawler excavator. Its overall operating weight is about 19.7\u201320.6 tons. It is equipped with Caterpillar C7.1 direct injection engine with a rated power of 104kW. It outputs high torque at low speed, with small power attenuation in plateau mountain environment, suitable for heavy-duty operation scenarios in Peruvian mining areas and mountain roads.<\/p>\n\n\n\n

    \n
  1. Plateau adaptation design of engine: The C7.1 direct injection engine has high tolerance to fuel. The quality of diesel in remote construction sites in Peru is uneven. Compared with electronically controlled injection models, the direct injection structure has higher tolerance to impurities in oil products. The engine has good plateau adaptation characteristics. At mountain construction sites at an altitude of about 2500 meters, power attenuation is controllable, reducing the problems of difficult starting and insufficient power caused by hypoxia at high altitude.<\/li>\n\n\n\n
  2. Multi-gear power control mode: The machine has heavy-duty H mode, standard S mode and economy E mode. Operators can switch flexibly according to mountain rock excavation or earthwork leveling. Enable economy mode for earthwork, slope trimming and other light-load working conditions to reduce fuel consumption and help Peruvian customers control fuel costs on construction sites.<\/li>\n\n\n\n
  3. Multi-stage air filtration protection system: Double-layer air filter structure. There is a lot of dust and rock dust in mountain construction sites. The front coarse filter intercepts large particles of sand and dust first to protect the engine air intake system, reduce the wear of cylinder liner and piston caused by dust entering the cylinder, and reduce the probability of engine failure in remote plateau construction sites.<\/li>\n<\/ol>\n\n\n\n

    3. Hydraulic system, operation performance and cab configuration<\/h4>\n\n\n\n

    CAT 320D2 adopts Caterpillar enhanced load-sensing hydraulic system with stable hydraulic output and excellent coordination of compound actions. During mountain operations, the synchronous operations of slewing, boom lifting and bucket excavation are smooth with small action impact, which can effectively protect structural parts such as boom and arm.<\/p>\n\n\n\n

      \n
    1. Excavation capacity: The standard bucket capacity is 0.93m\u00b3 with strong bucket digging force. When facing weathered rock and hard clay excavation in Peruvian mountains, the amount of earth and rock excavated at a single time is stable, and the operation efficiency of rock loading and subgrade excavation is stable.<\/li>\n\n\n\n
    2. Chassis structure configuration: Adopt widened and reinforced crawler chassis with thickened track plates and reinforced rollers and carrier rollers. It has excellent grip performance on rugged mountain roads, strong climbing ability, stable walking on mountain construction sites with ups and downs, impact resistance and wear resistance. It is suitable for long-time operation on gravel roads and extends the service life of the chassis.<\/li>\n\n\n\n
    3. ROPS roll-over protective cab: The cab is equipped with falling object protection structure. There is a high risk of falling rocks in mountain quarry construction sites, which can protect the safety of operators. The cab has good sealing performance to reduce the entry of mountain dust; the operating handle has moderate damping, which reduces operator fatigue during long shift work, and is suitable for two-shift continuous construction in mountain construction sites in Peru.<\/li>\n<\/ol>\n\n\n\n

      4. Key inspection points of core components of CAT320D2 under plateau mountain working conditions in Peru (key points for second-hand machine inspection)<\/h4>\n\n\n\n

      When Peruvian customers purchase used CAT 320D2, the machine inspection process needs special detection targeting the plateau, multi-rock and large day-night temperature difference working conditions in Peru, which is also the core project of Hefei Yixin Construction Machinery\u2019s equipment inspection process:<\/p>\n\n\n\n

        \n
      1. Engine inspection: Check whether the engine has smoke blowby or oil seepage, test the power output under plateau load conditions; check whether the radiator is blocked or leaking. The large temperature difference between day and night on the plateau will easily cause high temperature failure once the radiator leaks; listen to abnormal noise during engine idling and heavy load operation to evaluate internal wear.<\/li>\n\n\n\n
      2. Hydraulic system inspection: Test whether the boom, arm and bucket cylinders have internal leakage, check oil seepage of all hydraulic pipe joints; detect the output pressure of the main pump, test compound actions and observe whether there is power loss or stuck movement; check the state of hydraulic oil and filter element to judge the pollution degree of the hydraulic system.<\/li>\n\n\n\n
      3. Structural parts inspection: Carefully check the welding seams of boom, arm, frame and bucket, focus on stress concentration positions, and check for cracks and traces of later secondary welding repair. The impact of rock operation in mountain areas is large, and intact structural parts are the foundation for long-term stable construction of equipment.<\/li>\n\n\n\n
      4. Travel and slewing mechanism: Test the synchronous performance of left and right travel motors, check abnormal noise of slewing motor and whether the slewing clearance exceeds the standard; detect the oil state of the reduction box and observe whether there are metal impurities to judge the gear wear.<\/li>\n<\/ol>\n\n\n\n

        5. Maintenance operation points on mountain construction sites in Peru to reduce the risk of equipment shutdown<\/h4>\n\n\n\n

        Mountain construction sites in Peru are geographically remote, and the transportation cycle of construction machinery spare parts is long. Once the equipment breaks down and stops working, it will directly delay the construction period in dry season. Daily preventive maintenance is particularly important:<\/p>\n\n\n\n

          \n
        1. Air filter maintenance: The concentration of rock dust in mountain areas is high. Shorten the inspection and cleaning cycle of air filters, clean the outer filter every day, and replace the inner filter on time to avoid dust entering the engine and causing internal wear.<\/li>\n\n\n\n
        2. Radiator maintenance: Regularly flush the rock dust accumulated on the surface of the radiator. The large temperature difference between day and night on the plateau will quickly cause high temperature if the radiator is blocked, resulting in engine damage.<\/li>\n\n\n\n
        3. Oil maintenance: Replace engine oil filter, fuel filter and hydraulic filter according to the working condition cycle. The local oil quality is unstable, so the filter replacement cycle can be appropriately shortened to protect the engine and hydraulic main pump.<\/li>\n\n\n\n
        4. Chassis maintenance: Regularly apply grease to the track tensioning mechanism, clean the gravel stuck in the track gap, check oil leakage of rollers and carrier rollers, and reduce abnormal chassis wear caused by mountain gravel.<\/li>\n<\/ol>\n\n\n\n

          6. Summary of applicable working conditions of the machine and model selection reference for Peruvian projects<\/h4>\n\n\n\n

          CAT 320D2 20-ton excavator is very suitable for mountain road reconstruction and expansion, small mine stripping, river regulation, village infrastructure and house foundation excavation projects in Peru. Compared with models of the same tonnage, the C7.1 direct injection engine has strong fuel adaptability, solid chassis structure and outstanding impact resistance of hydraulic system, which can adapt to the South American mountain environment with plateau, many rocks and large temperature difference between day and night.<\/p>\n\n\n\n

          For small and medium-sized engineering contractors in Peru, purchasing well-conditioned used CAT 320D2 can meet the demand of long-time continuous construction in dry season on the premise of controlling equipment procurement costs. Caterpillar spare parts have large inventory and mature procurement channels in South America such as Peru and Bolivia. Hefei Yixin Construction Machinery focuses on exporting high-quality used excavators to Africa and South America. It can provide complete machine inspection, video machine inspection and container loading supporting services, and screen second-hand construction machinery suitable for local working conditions for overseas engineering customers in Peru and other countries.<\/p>","protected":false},"excerpt":{"rendered":"

          1. Overview of construction machinery export market in September 2023 and regional demand characteristics of Peru In September 2023, the […]<\/p>\n","protected":false},"author":1,"featured_media":2787,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-5263","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry-news"],"_links":{"self":[{"href":"https:\/\/yixinexcavator.com\/fr\/wp-json\/wp\/v2\/posts\/5263","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/yixinexcavator.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/yixinexcavator.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/yixinexcavator.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/yixinexcavator.com\/fr\/wp-json\/wp\/v2\/comments?post=5263"}],"version-history":[{"count":1,"href":"https:\/\/yixinexcavator.com\/fr\/wp-json\/wp\/v2\/posts\/5263\/revisions"}],"predecessor-version":[{"id":5264,"href":"https:\/\/yixinexcavator.com\/fr\/wp-json\/wp\/v2\/posts\/5263\/revisions\/5264"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/yixinexcavator.com\/fr\/wp-json\/wp\/v2\/media\/2787"}],"wp:attachment":[{"href":"https:\/\/yixinexcavator.com\/fr\/wp-json\/wp\/v2\/media?parent=5263"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/yixinexcavator.com\/fr\/wp-json\/wp\/v2\/categories?post=5263"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/yixinexcavator.com\/fr\/wp-json\/wp\/v2\/tags?post=5263"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}