What are the models of excavators?

[LaDamian]

Excavators come in models such as 35, 60, 120, 160, 200, and 220. Here are the specific details about excavators: Overview: Excavators, colloquially known as 'hook machines' in some regions and also referred to as diggers, are versatile machines capable of moving forward, backward, rotating, lifting, lowering, digging, hydraulic hammering, and suction. They are used to excavate materials above or below the machine's level and load them into transport vehicles or dump them at stockyards. Equipment Structure: Common excavator structures include the power unit, working device, slewing mechanism, control mechanism, transmission mechanism, undercarriage, and auxiliary facilities. Externally, an excavator consists of three main parts: the working device, the upper slewing platform, and the undercarriage.

[VonJason]

A hook machine is indeed an excavator, and the matter of model numbers is quite complex. Simply put, each manufacturer has its own model numbering system. For example, Caterpillar's CAT320 represents a 20-ton class, and Sany's SY215 is also a 20-ton class. Those numbers in the model aren't random - the initial letters are brand abbreviations, the middle numbers indicate tonnage class, and the trailing letters may represent configurations. Some models with an 'L' denote extended arms, while a 'C' might mean widened tracks. I've seen many people make mistakes when reporting model numbers for replacement parts, resulting in hydraulic pumps that simply wouldn't fit. I recommend checking the metal nameplate on the machine body or consulting page two of the operation manual next time - that's where the model number is printed most accurately.

[VanDeclan]

Excavator models? I remember being confused when I bought my first one. Tonnage is the most critical factor - the 120 model is a 12-ton class, suitable for rural road construction; the 210 model is a 21-ton class, commonly used on construction sites; for mining operations, you'll need at least a 350 model. Brand differences are even more pronounced - while both the Caterpillar 320 and Komatsu PC200 are 20-ton class, their engine layouts are completely different. Some manufacturers like to add letters at the end of model numbers - the 'LC' in Doosan DX225LC stands for long crawler, while the 'D' in Volvo EC250D indicates the latest fifth generation. Always verify the complete model number when purchasing parts - last month my neighbor wasted over 3,000 yuan buying wrong bucket teeth just by missing one letter.

[JuniperLynn]

Operating excavators for a decade, I've handled dozens of models. Common tonnage falls into three tiers: micro excavators under 6 tons like the Sany SY75, ideal for urban pipeline work; medium 20-ton models like the Caterpillar 320 are most common; large 30+ ton machines like the XCMG XE370 handle mining. Decoding configurations through model numbers is fascinating—the 'E' in LiuGong 920E denotes electronic control systems, while an added 'H' indicates a high-altitude version. Once during disassembly repair, I discovered the 'M0' in Komatsu PC300-8M0 signifies mining configuration, with two extra hydraulic valves compared to standard models. Beginners can identify models by checking the right-side nameplate, typically located near the cab entry point.

[KatherineLynn]

I study equipment models daily when helping construction sites select machinery. The tonnage can be roughly estimated by multiplying the middle two digits of the model number by 10—for example, Hyundai 215 is about 21.5 tons, and Kobelco 260 is 26 tons. Brand naming conventions are quite interesting: Caterpillar uses three-digit numbers like 336, Sany uses SY prefixes, and Volvo prefers EC followed by three digits. Pay attention to different configurations within the same tonnage range—for instance, Hitachi ZX250LC's "LC" stands for long arm, which costs 70,000–80,000 RMB more than the standard arm but adds two meters of digging depth. Choosing the wrong model can be problematic—a friend mistakenly bought a short-arm model last year and couldn't reach the riverbed during dredging. Always clarify project requirements before matching them to specific models.

[SanAvery]

Excavator model naming follows patterns. Brand abbreviations come first, like CAT for Caterpillar and XE for XCMG. The middle numbers relate to tonnage, but algorithms vary by brand: Komatsu's PC200 means 20 tons, while LiuGong's 902 indicates 90 horsepower and 9-ton class. Letter suffixes hold secrets - LG953N's 'N' means China III emission, and DH300LC-V's 'V' denotes wide undercarriage. Once during repairs, I noticed imported versions had 'JP' part numbers while domestic ones used 'CN'. Pro tip: snap a photo of the cab nameplate - it always shows full model number and manufacture date.