A machine skate is a piece of equipment that provides movement of heavy machinery using rollers on a smooth and level surface. The load is lifted up using a jack and placed onto the skates. Different specifications and varieties of skates allow weights up to 72 tonnes to be moved on machine skates with minimal input. They are useful in small spaces where a crane cannot be used and it is simple to use.
A load with a low height is easier to position on a machine skate, when the friction is low; the result is lower motive force. To use a machine skate, just take 4 toe jacks and use them to lift your load high enough to enable sliding of the moving skate under the four corners. Release the jacks when the machine is safely in place.
A hydraullic jack is a machine that lifts heavy loads through application of a force through a hydraullic cylinder. Loads get lifted by use of a force through creation of a pressure within the cylinder chamber. A hydraullic jack multiplies a small force to pass a larger force on a load; it works in the same mechanical advantage as a pulley. A jack uses external power that comes from a pump to exert force where the pump is normally mechanically powered.
Hydraullic jacks can lift objects that weigh few pounds to thousands of pounds. They obtain their power from electricity, gasoline, compressed air, and hand power. A hand powered hydraullic pump is the cheapest but the slowest in the market. Pressure is created by a hydraullic jack when oil is moved via two cylinders through a pump plunger. A hydraullic jack is mostly useful in the automotive industry where it is used to lift cars from the ground to enable them to be tooled. Other tools in the construction sector use hydraullic jacks for task completion.