The main differences between the horizontal bar (single cylinder) and parallel bar (double cylinder) of small excavators are reflected in power, digging depth, operating flexibility, price and maintenance costs. These differences also determine their applicability in different application scenarios.
1. Main differences
power:
The rated power of single-cylinder small excavators is generally below 20 horsepower.
The power rating of a two-cylinder small excavator is usually between 20-50 horsepower.
Digging depth:
The digging depth of a twin-cylinder excavator is generally deeper than that of a single-cylinder excavator, thanks to its greater engine power and working capacity.
The engine structure of the single-cylinder small excavator is simpler, so the operation flexibility is higher, and it is more suitable for working in a small space.
The operation of a double-cylinder small excavator is relatively complex and requires higher skills and experience.
price:
The price of a single-cylinder small excavator is usually cheaper than a double-cylinder small excavator because its structure is simpler and its production cost is lower.
Maintenance cost:
The maintenance cost of a single-cylinder small excavator is also relatively low because its structure is simpler and there are fewer parts, making it easier to maintain.
The maintenance cost of a double-cylinder small excavator is relatively high, requiring higher maintenance skills and more maintenance parts.
Double-cylinder small excavator:
It is suitable for scenarios that require greater power and excavation depth, such as urban construction, concrete structures in old house renovation, steel structure demolition, etc.
It is also widely used in mining, garbage disposal, wood processing and other industries. It can be used to cut ore blocks, rocks, large pieces of garbage and wood, etc.
To sum up, choosing between a single-cylinder or twin-cylinder mini excavator depends on your specific job needs and budget. In light excavation and small space operations, single-cylinder small excavators have more advantages; while in scenarios requiring greater power and digging depth, double-cylinder small excavators are more suitable.
