The difference between manual stacker and electric stacker

Although the manual stacker and the electric stacker belong to the same stacker, the actual comparison can be described as a sparrow than a phoenix, a fishing boat than a battleship. Because in various functions, electric stackers are much more than manual stackers. However, the manual stacker also has a fatal killer - price. Then let's analyze in detail how the working efficiency of manual stacker and electric stacker is different.
From the perspective of the whole vehicle configuration: the manual stacker adopts a manpower hydraulic device, which is a big jack as the saying goes. The electric stacker has many configurations. Mainly include: battery, motor, hydraulic station, drive wheel, counterweight, controller, circuit board, sensor and other devices. From the configuration, it is a lot more, and the function is also much more powerful. Not only can it be lifted by electro-hydraulic, but it can also be driven by electric drive for walking and steering, and the safety is much higher! In terms of work efficiency, see the detailed comparison below:

Let's first look at the lifting speed:

The lifting speed of the manual stacker is 1.6 meters, which requires about 100 foot steps, which means that the hydraulic pressure can rise about 1.5cm at a time. If the hydraulic pressure is calculated for 1.5s at a time, the speed is 1cm/s, and the time required to rise by 1 meter is 100 seconds. The lifting speed of the electric stacker is 10cm/s, and it takes 10 seconds to electric pallet lift truck 1 meter.

This is a test when working with empty cars. If the load is working, the manual stacker requires more manpower and hydraulic force, and the speed will be slower! But the speed of the electric stacker is still the same speed. From this lifting aspect alone, it can be seen that the work efficiency is very different.

Let's look at the driving drive:

The manual stacker uses manpower to move. During operation, the moving speed of the empty car will generally not exceed 1m/s, and if it is loaded with cargo, the speed should not exceed 0.8m/s, because the speed of people cannot be so fast. The stand-type all-electric stacker uses a motor to drive the whole vehicle to achieve movement. The driving speed is generally between 3.5km/h and 5.5km/h. If calculated according to 3.6km/h, there is also 1m/s. The speed is definitely much faster than that of a human-powered stacker.

In terms of actual work efficiency:

When the manual stacker is operated by manpower, it is relatively laborious to move and electric pallet lift truck.

According to the 20 times of lifting the goods, each lifting is 1.5 meters, and each cargo moving 20 meters (40 meters round-trip), the lifting and lowering are calculated at the same speed.

The time required for the operation of the manual hydraulic stacker is: [150cm*1cm/s*2+(20m÷0.8m/s)*2]*20=7000 seconds, which is about 2 hours. Breaks are not included, and each assignment is at the same pace. (It is impossible in the actual process, because people need to rest.)

Let's take a look at the time it takes to use an all-electric stacker: [150cm*10cm/s*2+(20m÷1m/s)*2]*20=1400 seconds, which is probably less than 25 minutes. During the 20 minutes of work, neither humans nor machines need much rest.

From the above data, the working efficiency of the all-electric stacker is more than 5 times that of the manual hydraulic stacker.

Finally, there is work continuity:

The manual stacker is operated manually, so there are not many restrictions on the continuous working time. The biggest limitation is the problem of manpower. If it is a person operating a stacker. It takes an average of 100 hydraulic pressures to load 1 cargo. If it is 30 times, it is 3000 times. This workload is very large; and it is also laborious to push and move. Therefore, the use of manual stackers is not suitable for places with large workloads; at the same time, it is not suitable for places with high strength requirements, such as many places where loading and unloading need to be rushed. The working efficiency of the electric stacker is more than 5 times that of the manual stacker, and the operation is easy, and the operator has little labor intensity. The stand-up electric stacker only needs to stand and drive, and the finger presses the button to control the electric pallet lift truck, which is very easy. Therefore, the manpower is basically unlimited, and the biggest limitation at present is the capacity of its battery. At present, the continuous working time of ordinary all-electric stackers is about 3-6 hours, depending on the stackers of different specifications and models! Generally speaking, the larger the battery capacity, the longer the battery life.

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