In the field of construction and earthwork, 20-ton excavators are one of the most common and widely used equipment. Different brands of 20-ton excavators have their own advantages in performance.
Komatsu PC200-8M0: It is an excavator tailored by Komatsu for infrastructure construction such as roads, railways, water conservancy, and municipal construction. Equipped with Komatsu saa6d107e-1 engine with a net power of 103kw, it can cope with the test of various harsh working conditions. The engine has high fuel efficiency, and the electronically controlled high-pressure common rail fuel injection system can realize multi-stage fuel injection, making combustion more complete and fuel efficient. Under the same working conditions as PC200-8, the fuel consumption of Komatsu PC200-8M0 is reduced by about 13%. Its hydraulic system adopts advanced pressure-compensated hydraulic system (CLSS), which has good composite operation performance, precise action, rapid response, and the digging force is not affected by the load size. The operator can easily control the machine to perform various actions, and the construction efficiency is high.
Caterpillar 320GX: Caterpillar developed an excavator for the Chinese market, and its appearance has attracted great attention in the excavator industry. This excavator costs 666,000 yuan and is equipped with a Caterpillar C4.4 National III electronic control engine, with a total power of 108kw/2000rpm, a bucket capacity of 0.9m³, and an operating weight of 19720kg. The excavator's electro-hydraulic system and intelligent power mode are relatively advanced, which can save 15% of fuel and reduce maintenance costs by up to 20%. The cab is simple and comfortable, and easy to operate.
Sany SY205H DPC: This model of excavator has a good reputation in the field of medium excavation and is suitable for construction environments with shifts/monthly packages. It uses a Mitsubishi 4m50 engine with good power. The negative sensitive flow control system used in this equipment makes the equipment more sensitive during subtle operations and the vehicle more flexible. In addition, the reinforced structural parts of this equipment also extend the service life of the equipment.
Volvo EC200D: An excavator launched by Volvo Construction Equipment, with high durability and reliability, suitable for a wide range of operations. Its engine rated power is 123kw/2000rpm, bucket volume is 0.85 - 0.9m³, and operating weight is 20,090 - 20,810kg. The machine can perform well in various operations. With a sturdy frame, optimized engine power and hydraulic pressure, the machine has excellent digging force and short operation cycle time, providing users with high efficiency and strong performance.
Hitachi ZX210H - 5A: A green and environmentally friendly medium-sized excavator, using an original imported high-quality and durable engine, equipped with a high-pressure common rail electronic injection system and a cold EGR system, combined with Hitachi HIOSⅢ hydraulic system, effectively improves fuel efficiency and improves operating performance. Its exhaust emissions meet the national 3rd emission standards. In addition, the structural parts adopt a reinforced design, the operating space is more comfortable and safe, and maintenance management is more time-saving and labor-saving.
XCMG XE200DA: An efficient and fuel-saving excavator with customized power and fuel consumption characteristic curves, sufficient power and low fuel consumption. Its chassis is lengthened and widened, with good stability, integral forged slewing bearing mounting seat, through-type guide wheel reinforcement ribs, and increased thickness of X-frame uprights, making the lower frame strong, reliable and durable. In addition, the fuel system of the equipment has multi-level protection, a breathing valve is installed in the fuel tank, and a large-view XCMG special cab has low noise, comfortable operating environment, and ergonomic air suspension seat.
Shantui SE215: A crawler hydraulic excavator with a high-power and high-torque engine, new electronically controlled positive flow Kawasaki hydraulic parts, and an independently developed electronic control system that accurately matches the performance curves of the engine and hydraulic parts and has a fast response speed. The whole machine has good coordination, high efficiency, low fuel consumption, and also has functions such as shock absorption and noise reduction, and intelligent monitoring.
In the second-hand excavator market, second-hand dealers also play an important role. Formal and professional second-hand excavator dealers will conduct strict inspections and evaluations on the acquired 20-ton excavators. They will check key aspects such as engine performance, hydraulic system condition, and wear of structural parts. For example, for second-hand Komatsu PC200-8M0 equipment, they will check whether the engine has maintenance records, whether the hydraulic system has leaks, and whether the wear of parts such as buckets is within a reasonable range. At the same time, these dealers will also perform certain repairs and maintenance on second-hand equipment to restore it to a better working condition. Some second-hand dealers will also provide certain warranty services to make buyers feel more at ease when using second-hand 20-ton excavators.
When choosing a 20-ton excavator, in addition to performance, factors such as price, brand reputation, and after-sales service need to be considered. At the same time, different working scenarios and operating requirements will also affect the performance requirements of the excavator. Therefore, it is recommended to conduct a comprehensive evaluation and selection based on the specific situation. The second-hand market can also be considered as an important source of equipment.