Vacuum Meat Mixer Common Problems and Troubleshooting Guide

The meat mixer series mainly includes four categories:

1. Standard meat mixer
2. Vacuum meat mixer
3. Refrigerated vacuum meat mixer
4. Heated vacuum meat mixer

Today, we will focus on the vacuum meat mixer, which has the widest range of applications, and discuss the common failure points and how to prevent and solve them.

1. Inability to Reach Proper Vacuum Level

Possible causes and solutions:
1. Check the sealing of the cylinder lid gasket – is there any air leakage?
2. Check the sealing of the discharge door gasket – is there any air leakage?
3. If the above two areas are fine, check whether the vacuum pump is malfunctioning.

Which is better – oil-type vacuum pump or water-circulating vacuum pump? What are the advantages and disadvantages?

Most people tend to choose the water-circulating vacuum pump because it's more tolerant of water and impurities, making it less prone to failure. However, it also has obvious weaknesses: low vacuum level and poor performance in winter unless antifreeze is added.

Think about it – for vacuum equipment, if it can’t achieve the required vacuum level, then there’s no point in buying it.

On the other hand, the oil-type vacuum pump can reach a high vacuum level, but it’s sensitive to water and impurities, which can easily cause failures.

How to solve this issue?
Our vacuum meat mixers, vacuum tumblers, and other vacuum equipment are equipped with a vacuum filtration system. Cleaning this system after daily use ensures that water and impurities do not enter the vacuum pump.

2. Uneven Mixing

Causes and solutions:
1. Check if the paddle blades are too small or too short.
2. Check if the angle of the blades is designed properly and whether there are dead zones during mixing.
3. Check whether the blades can scrape the bottom or if there is a large gap between the blade and the tank bottom.
4. Examine the design of the mixing tank – are the blades too close to the bottom?

To ensure uniform, dead-zone-free mixing, these points are key.
In our design, the blades are thicker, larger, and taller. The tank bottom is shaped into two semicircles, and the blade-to-bottom gap is small, allowing for full and even mixing without dead angles.

3. Twin Shafts “Locking Up” and Not Operating

Many customers tend to overlook this issue, but it’s actually very important.
When the twin shafts stop working, aside from checking for electrical switch faults, a likely cause is poor sealing at both shaft ends, which allows water to enter and damage the bearings.

Therefore, the shaft-end sealing is crucial for the proper functioning of the machine. However, users can't directly see this – you can only assess it by looking into:
- The manufacturer's business positioning
- Equipment configuration and workmanship
- Material thickness
- Brand reputation and user feedback