Crawler Shot Blasting Machine Common Problems And Solutions

Crawler shot blasting machine is an important surface treatment equipment that has found widespread applications in industrial production and manufacturing. Compared to other types of shot blasting machines, crawler shot blasting machines offer advantages such as long lifespan, wide application range, and high efficiency.

Firstly, crawler shot blasting machines are known for their long lifespan. They are lighter in weight and easier to transport compared to other shot blasting machines. Their simple construction requires less material, reducing their overall weight. Additionally, their straightforward design makes maintenance and servicing easier, and they are less prone to structural damage during transportation. Therefore, with effective maintenance, crawler shot blasting machines have a longer lifespan compared to other types, reducing overall costs.

Secondly, crawler shot blasting machines have a wide application range. Shot blasting machines come in different varieties to suit various work environments, and crawler shot blasting machines have a broader range of applications compared to others. They offer three different speeds to meet the requirements of different materials, achieving excellent results. Thus, having a crawler shot blasting machine is equivalent to having multiple types of shot blasting machines.

Lastly, crawler shot blasting machines are known for their high efficiency. They operate using a separation mechanism, allowing for the classification of different types of products. This ensures a consistent speed when processing the same products, meeting higher work requirements. Compared to other types of shot blasting machines, crawler shot blasting machines offer higher work efficiency.

Common Problems and Solutions for Crawler Shot Blasting Machines:

1.How to address excessive vibration and noise in the shot blaster of a crawler shot blasting machine?

Causes: Poor balance, blade breakage due to large objects entering the shot blaster, uneven wear on a set of blades leading to significant differences in mass.

Solution: The mass difference between a set of blades should not exceed 5g, and when replacing, it should be done in pairs.

2. How to resolve abnormal heating of the electric motor in the shot blaster of a crawler shot blasting machine?

Possible causes: Excessive shot blasting, leading to high current (load current should not exceed 15A), adjust the shot valve to reduce shot blasting; damaged bearings, replace them; issues with the electric motor itself, check the wiring and motor parameters.

3. How to address reduced effectiveness of a crawler shot blasting machine after some usage?

Possible solutions:

① Worn-out wear-resistant components in the shot blaster causing insufficient steel shot ejection force, replace the worn parts; 

② low steel shot output, potential blockage in the bottom screen or excessive dust accumulation, clean the screen promptly;

③ misalignment of the directional sleeve angle in the shot blaster, adjust the corresponding angle.

4. What to do when the dust collector of a crawler shot blasting machine contains too much dust and steel shots?

This situation can occur if the separator’s load is too high. Adjust the air outlet baffle appropriately until dust collection efficiency is maintained, without sucking up steel shots. Alternatively, you can install a shot-blocking device at the dust collector outlet.

5. How much alloy steel shot is typically used in a crawler shot blasting machine?
Alloy steel shots, also known as cast steel shots, are commonly used metal abrasives for shot blasting workpieces. Crawler shot blasting machines are considered small-scale machinery, so the consumption is not high. Initially, you might use around 100-150 kg/s during the first run. However, since cast steel shots wear out quickly during the shot blasting process, it’s advisable to maintain a stock of approximately 1 ton for ongoing use.

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