The fuel consumption of the excavator is an important item in the daily cost and will directly affect the profit of the user. Many people think why my excavator consumes more fuel than others? In fact, there are several factors that secretly "eat" your oil:
1. Long-term idling The idling refers to the state of the engine when it is idling, that is, when the excavator is not working, the engine "suddenly" spins. In the daily operation of excavators, the idle time of equipment at many construction sites is as high as 40%-50%. During idling, the oil burned by the engine does not create value, which is equivalent to "burning money."
Take a device that works for 2000 hours a year as an example. If the idle speed reaches 40%, it will consume about 3.7 liters of fuel for one hour at an idle speed. This equipment will generate about 20,000 yuan in fuel costs a year, which is not a sum of money. Small expenses.
Reduce fuel consumption: you need to reduce the idle time immediately
● Reduce the idle time before stopping. The new engine does not need to idle, and some previous engines need to idle for 2 minutes.
● When loading/unloading, if the truck waits for more than 5 minutes, please stop and turn off the engine.
● Before starting work every day, the equipment should be warmed up for 3-5 minutes, not too long.
● If the engine is equipped with an idle stop system (the system will automatically shut down the engine after the idle time set by the operator), please enable this function.
● When the operator is not working such as resting or eating, please stop and turn off the engine.
● Effectively manage construction vehicles and reduce idle speed through measures such as improving driving routes.
2. Poor site management
Factors such as different construction sites, equipment operation and layout will affect the overall fuel consumption and production efficiency of the excavator. Grasp the two "degrees" to quickly find fuel-saving and efficient cheats.
3. Loading height. If the excavator is working on a high platform, the height of the high platform is preferably equal to the length of the stick, and the fuel efficiency is the highest. Do the same job and consume the least oil. If the height of the high platform is not enough, not only will the turning time and fuel consumption be increased, but the bucket will not be easy to fill.
4. Rotation angle
In the loading operation of the excavator, the rotation angle of the excavator must not exceed 60 degrees, and the range of 30 degrees to 45 degrees is more appropriate. The smaller the angle, the faster the rotation, the higher the output, and the lower the fuel consumption.
5. Insufficient tire pressure for tire excavators
Studies have shown that the correct use of radial tires can save up to 10% of fuel consumption. Among them, tire pressure has the most significant impact on fuel efficiency. When the tire pressure is insufficient, the resistance of the excavator will increase, fuel consumption will increase, and the output will decrease due to unstable equipment movement.
6. Operator level
Investigations show that a highly skilled operator can effectively reduce fuel consumption by as much as 10-12%. Moreover, 30% of contractors believe that high-level pilots are the key to business success! A good operator should have experienced construction experience, excellent driving skills and rich construction knowledge in order to increase production efficiency and reduce fuel consumption.
Today I will order some hard dishes to provide you with some fuel-saving techniques for excavator operation.
Before sharing, imagine yourself as an excavator. The energy-saving excavator is equivalent to working and labor-saving yourself, so that you can understand the truth more personally.
01 When the excavator is loading, try to be at a higher position if possible. If you don’t have the conditions to create conditions, you must stand at a higher position so that the truck is parked at almost the same height as the working surface; the reason is very simple. Does it work the same way when you lift it to the top of your head? How much "strength" can be saved?
Compared with the direct low-level excavation, the cycle time can be shortened by about 12%, the fuel consumption can be reduced by about 8%, and the operation efficiency can be increased by about 40%, which are not small numbers.
02When the bucket cylinder and the connecting rod, the head rod cylinder and the head rod are all at 90°, each cylinder has the greatest force to push the excavator.
03 For excavation on natural ground, the floor angle of the bucket or ripper should be kept at about 30°, and the bucket rod should be retracted. When the stick is close to vertical, the stick has the greatest force and can carry more load. These two points are like bending your arms to lift things with ease, or straightening your arms, of course, bending them.
04 When digging at the beginning, do not extend the stick to the maximum range, starting from about 80% is the best. (When the stick has the maximum range of action, the digging force of the stick is the smallest, and digging is difficult). Generally novices pay more attention to this.
05 Bucket stick digging range: the angle of the stick from 45° far side to 30° inside. There is a slight difference due to the digging depth, but the boom and bucket are generally operated within this range, and should not be operated to the end of the stroke of the cylinder.
06 During continuous excavation, the chassis is placed in the forward direction and can walk immediately after the excavation is completed. If you want to go, change it again, and it will burn a lot of oil after the start.
07 When digging trenches, first dig both sides of the trench and then dig the middle part. This saves a lot of trouble and effort when digging the middle.
08 Put the engine throttle in the economy gear position. Select the automatic idling function to let the engine idle when digging is stopped.
09 Minimize the radius of gyration.
10 The smaller the digging depth, the better the economy when digging. Try to use segmented digging. Divide into three levels, upper, middle and lower. If you dig from low to top, firstly, the scope of action is enlarged. Secondly, the power of the excavator is reduced due to the enlarged scope, which reduces the work efficiency, which costs a lot of oil.
These little fuel-saving operation skills may not even be noticed by the veteran operator, but as long as they can develop good operating habits and accumulate over time, they can indeed save considerable fuel costs.
