Hydraulic cylinders are generally better for extremely heavy engineered lifting applications.

Hydraulic jacks are commonly used for portable lifting and maintenance applications.

Yes. Hydraulic cylinders are widely used for lifting applications.

Because they are designed as engineered lifting cylinders rather than portable lifting jacks.

Bottle jacks contain hydraulic cylinders but are considered hydraulic jacks.

A hydraulic ram is another term often used for a hydraulic cylinder.

Because the terms are often used interchangeably in the lifting industry.

No. A hydraulic jack is usually a lifting tool, while a hydraulic cylinder is a hydraulic force actuator.