The difference between the mechanical and hydraulic excavator quick coupler

1.quick coupler mechanical type

A mechanical head replacement technology is one that replaces by applying mechanical force, typically via a manual or other mechanical device. Common mechanical head change techniques for the excavator’s rapid change head include the use of snap rings and manual disassembly.

Advantages: Because it doesn’t require hydraulic oil or other liquids, mechanical head replacement technology is straightforward, simple to maintain, and better suited to the challenging working environment.

Cons: Mechanical head replacement method is inefficient, time- and resource-intensive, and prone to operator error. It also demands greater personnel input.

2. quick coupler hydraulic type

The use of hydraulic pressure as a means of energy transfer and control to carry out head-changing actions is known as hydraulic technology. Fuel tanks, hydraulic pumps, control valves, actuators, and other parts are frequently found in hydraulic equipment.

The hydraulic head changing technology has several benefits, including ease of operation, high efficiency, changeable flow rate, high output torque, high precision, and strong reliability.

Cons: Hydraulic head changing technology involves complicated maintenance, higher maintenance expenses, and the usage of fluids like hydraulic oil.

3. Evaluation of hydraulic versus mechanical head changers

1. Method of operation

While hydraulic head changing technology is easier to operate and can be completed through control valves and actuators, the operation time is shorter and the efficiency is higher, compared to mechanical head changing technology, which requires more manpower and time costs.

2. Upkeep expenses

Mechanical head replacement technology has a relatively low maintenance cost, but the process is prone to human error. Hydraulic head replacement technology has a higher maintenance cost, but the system is stable and dependable, and maintenance is relatively easy.

3. Effects and results

The hydraulic head changing technology is more suitable for more scenarios and makes it simpler to guarantee the linear quality of the operation after the head changing. The mechanical head changing technology’s operation is reasonably easy, but it may result in poor linearity after the head changing.

In conclusion, there are benefits and drawbacks to both mechanical and hydraulic head shifting technologies. You can select between mechanical and hydraulic head changing technologies depending on your needs and various working circumstances. When implementing the quick-change head technology on an excavator, it’s important to take the operator’s knowledge and expertise into account as well as maintenance and cost factors.


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