There are many kinds of small excavators in the market now,and many people don’t know how to choose a small excavator.If you need to buy a small excavator,the following are some factors to consider:
Purpose:First of all,you need to determine what type of ground you need to dig,as well as the depth and width you need to dig.This will help determine how big and what type of excavator you need.
Size:Mini excavators come in a variety of sizes,from micro excavators to mid-size excavators.Choosing the correct size will help improve efficiency and reduce costs.
Power:Mini excavators typically use diesel engines,but there are also options for electric and hydraulic drive.Selecting the proper power source will help ensure that the machine will get the job done and be more efficient.
Operation:Small excavators are usually operated by one or two people.If you need a machine that only needs one person to operate,then you need to choose an easy-to-operate model,such as an excavator with a simple control panel and automatic functions.
Brand and Quality:Choosing a reliable brand and high-quality product will ensure that your machine will last and that you will be able to receive support and repair services when needed.
Generally speaking,if you need to buy a small excavator,you need to consider factors such as purpose,size,power,operation and brand quality.When choosing,an informed decision should be made based on your needs and budget.
What are some common situations where the hydraulic pump of a hydraulic excavator fails?
The hydraulic pump of the hydraulic excavator is one of the core components of the hydraulic system of the excavator.It is responsible for converting the hydraulic oil pressure into mechanical energy and driving the various actuators of the hydraulic system.If the hydraulic pump fails,the excavator will not work properly.The following are several common hydraulic pump failure conditions:
Too high oil temperature:The hydraulic pump will generate a lot of heat when it is working.If the temperature of the hydraulic oil is too high,it will lead to increased wear of the internal parts of the hydraulic pump,thereby shortening the service life of the hydraulic pump.In addition,high temperature will also lead to oil oxidation,affecting the normal operation of the entire hydraulic system.
Oil leakage from the pump body:There are multiple seals inside the pump body of the hydraulic pump.If these seals are worn or aged,it will cause oil leakage from the pump body.The oil leakage of the pump body will cause the pressure drop of the hydraulic system and affect the working efficiency of the excavator.
Internal wear of the pump:There are many moving parts inside the hydraulic pump,which will wear out after long-term use,such as pump shafts,gears,bearings,etc.Wear and tear on these parts can cause the pump to degrade or even stop working properly.
Gas mixing:If air or other gases are mixed into the hydraulic oil,air bubbles will be formed inside the hydraulic pump.Air bubbles will affect the normal work of the hydraulic pump,resulting in unstable operation of the excavator.
Hydraulic oil pollution:If the hydraulic oil is mixed with impurities,water or other pollutants,it will affect the normal operation of the hydraulic pump.Contaminants can accelerate the wear of pump internal parts and cause hydraulic system failure.
The above are several common hydraulic pump failure situations.In order to ensure the normal operation of the excavator,the hydraulic pump should be checked and maintained regularly,and any failures should be dealt with in time.