An electrical and foot-operated dewater device contains: a bucket, a dewatering unit, and a draining basket. The bucket includes a holding portion and a groove portion. The dewatering unit includes a base, a rotary shaft rotatably, a foot-operated driving assembly, a first touch switch, and an electrical driving assembly. The rotary shaft includes a first gear portion and a second gear portion, the foot-operated driving assembly includes a transmission part, a first pedal, and a resilient element, wherein the transmission part has a worm, a fitting sleeve, and a drive gear. The electrical driving assembly includes a motor, a circuit controller, a battery, and a control switch. The circuit controller includes a charging circuit module which has a socket configured to connect with an external power supply so as to electrify the battery, and the charging circuit module receives electricity produced by the motor in a foot-operated driving mode.

A convenient dehydration device includes an outer bucket, a dehydration basket and a cap body. One end of a limit rod is fixed to the cap body therebelow and adjacent to a central portion thereof, and the other end of the limit rod passes through a bearing fixed to a top base of a sleeve portion of the dehydration basket and then abuts against a steel ball, so that the pivoting of the limit rod may make a rotation center of the dehydration basket more precise, reduce the vibration of the dehydration basket while rotation, and maintain the rotation center of the dehydration basket to be stable.

A centrifugal separator, such as a spin dryer that separates water from wet clothing includes a stationary chamber. A perforated basket is arranged to spin within the stationary chamber. A DC or AC motor is arranged below the bottom floor fastened to a mechanical floor. A driveshaft can be connected to the motor output shaft via a flexible coupling and passes through the bottom floor and is connected to the basket. A brake disc is operatively fixed to the output shaft, and a brake caliper is fixed to the mechanical floor to stop the brake disc. A balance ring, having an annular chamber holding a balance fluid, is mounted to an outside of the basket. The centrifugal separator can include a cycle controller that can ramp up or down the basket speed and reverse spinning direction of the basket.

A centrifugal separator, such as a spin dryer that separates water from wet clothing includes a stationary chamber. A perforated basket is arranged to spin within the stationary chamber. A DC or AC motor is arranged below the bottom floor fastened to a mechanical floor. A driveshaft can be connected to the motor output shaft via a flexible coupling and passes through the bottom floor and is connected to the basket. A brake disc is operatively fixed to the output shaft, and a brake caliper is fixed to the mechanical floor to stop the brake disc. A balance ring, having an annular chamber holding a balance fluid, is mounted to an outside of the basket. The centrifugal separator can include a cycle controller that can ramp up or down the basket speed and reverse spinning direction of the basket.

An electrical and foot-operated dewater device contains: a bucket, a dewatering unit, and a draining basket. The bucket includes a holding portion and a groove portion. The dewatering unit includes a base, a rotary shaft rotatably, a foot-operated driving assembly, a first touch switch, and an electrical driving assembly. The rotary shaft includes a first gear portion and a second gear portion, the foot-operated driving assembly includes a transmission part, a first pedal, and a resilient element, wherein the transmission part has a worm, a fitting sleeve, and a drive gear. The electrical driving assembly includes a motor, a circuit controller, a battery, and a control switch. The circuit controller includes a charging circuit module which has a socket configured to connect with an external power supply so as to electrify the battery, and the charging circuit module receives electricity produced by the motor in a foot-operated driving mode.

A centrifugal separator, such as a spin dryer that separates water from wet clothing includes a stationary chamber. A perforated basket is arranged to spin within the stationary chamber. A DC or AC motor is arranged below the bottom floor fastened to a mechanical floor. A driveshaft can be connected to the motor output shaft via a flexible coupling and passes through the bottom floor and is connected to the basket. A brake disc is operatively fixed to the output shaft, and a brake caliper is fixed to the mechanical floor to stop the brake disc. A balance ring, having an annular chamber holding a balance fluid, is mounted to an outside of the basket. The centrifugal separator can include a cycle controller that can ramp up or down the basket speed and reverse spinning direction of the basket.

A spin-dryer includes an external drum, an internal drum and a spinning unit. The external drum includes a containing chamber. The internal drum is rotationally inserted in the containing chamber. The internal drum includes a spinning chamber, apertures in communication with the spinning chamber, and a lower axle rotationally inserted in the external drum. The spinning unit includes a motor inserted in the external drum, a driver gear operatively connected to the motor, and a follower gear connected to the lower axle and engaged with the driver gear.

A spin-dryer includes an external drum, an internal drum and a spinning unit. The external drum includes a containing chamber. The internal drum is rotationally inserted in the containing chamber. The internal drum includes a spinning chamber, apertures in communication with the spinning chamber, and a lower axle rotationally inserted in the external drum. The spinning unit includes a motor inserted in the external drum, a driver gear operatively connected to the motor, and a follower gear connected to the lower axle and engaged with the driver gear.