1. Main function

The cover tub is the intermediate part between the drum and the outer shell of the washing machine, designed as a sealed tank with the task of holding water during the washing, rinsing and spinning process, while preventing water from leaking out. This is a very important part because all spinning, reversing, supplying and draining activities take place inside the space of the cover tub.

2. Role in the mechanical structure

The cover tub is The tub cover directly supports the washing drum, through the shaft and the damper (suspension rod). It helps to disperse centrifugal force and vibration during the spinning process, avoiding direct force transmission to the machine body. In addition, the tub cover also creates attachment points for parts such as the motor, heater, sensor, valve, drain pump and other technical accessories.

3. Role in the safety and anti-leakage system rust

The inner surface of the tub cover is designed to be watertight, pressure-resistant and heat-resistant, helping to protect electronic components from moisture and damage. A shaft seal is installed at the joint between the shaft and the tub cover to prevent water from leaking into the motor, ensuring safety and increasing the life of the device.

4. Role in noise and vibration control

The tub cover acts as a natural shock absorber, absorbing vibrations from the washing drum when spinning at high speeds. Some high-end washing machine models are also equipped with additional soundproofing materials or a layer of vibration-reducing foam integrated into the tub cover to reduce noise and increase smoothness during operation.

5. Manufacturing materials

The tub cover is usually made of PP, ABS or FRP (fiberglass reinforced plastic), which has the characteristics of heat resistance, water resistance, chemical resistance and high mechanical strength. The surface is processed smoothly to prevent detergent residue, bacteria and easy to clean.

6. Relationship with other parts

- Drum (Washing cage): rotates inside the tub cover.

- Outer cabinet (Machine body): covers the outside of the tub cover.

- Motor & Pulley: attached to the bottom of the tub cover.

- Suspension system: hangs or supports the tub cover, helping to balance during operation.