Press Required to Lift 300kg Motor

you can raise the platform with a hydraulic scissor lift. These are buildable and you need to calculate the stroke and bore and hydraulic pressure to lift the lift itself and the motor plus a safety factor and you need a limit switch, preferably and hydraulic over pressure switch as well.

scirros lift articles here.

http://www.google.ca/search?hl=en&q=%22scissor+lift+design%22&btnG=Google+Search

You can also use a 4 point winch where a cable lifts the platform on rails and the cables are beneath the platform with a wihc and controls and you have 4 cables running to your lift points. Some car hoists in garages are made this way. They also do it hydraulically

sri, om. Don't understand your banter. Will you repeat that in English, please?

You can either raise the load via hydraulic force, using high pressure fluids or air, or you can raise the load via cables from a winch.

With care you can conceal the cables and shroud them.

A scissor lift it the lift you see when they change light bulbs in a gymnasium. They can be made in many heights.

Sunilkumar

Sorry mate, but if you are in your final year Mech Engg. and you are asking for help with this sort of elementary applied mechanics problem (if it even warrants such a grand classification is open to debate) then I am very, very afraid for the future of engineering. Mechanical Engineering is not a degree one picks out of a lucky-packet! It is also a profession that requires excellent communication skills, both verbal and written, and I am afraid you have a fair amount of ground to make up in the latter department as well.

Big Bad Bob

Use lifting dust, this is found in the same isle as leveling compounds and long stands.

I prefer to use shore line, go down to the beach and get me 40 feet or shoreline

SOUNDS LIKE A GOOD "OLE" BUCKET OF STEAM WOULD DO THE TRICK!

Green paraffin for the starboard light? Like guest, I fear for the profession if a final year engineering student has to ask for help with this one. It is the kind of project we would give to second year apprentices.

Yes, v can do dat 4 u!

I've answered some posts from students here with similar tasks.

In all of them I see a lack of a little method to pursuit a problem. First, evaluate your needs, do some sketchs, then do some preliminar calculation, consult some books (these are old devices made on printed paper with thick covers, used to store information - you'll find them in your university if you talk to the right people), choose some equipment off the shelf that would fit your sketch, check price and availability, and detail your project.

You're talking with experienced engineers from several different areas and different parts of the world, that are interested in help and learn through inteligent and interesting examination of problems. So, make clear previous sketches, elaborate clear questions to be solved, and use english for communication. Sorry, this is not orkut, and do not expect anyone to go there to solve your life. And internet does not gives you always the information you need. Go to that old devices...

Regarding the only question I could clearly understand from your comment, the pressure required to lift the load depends on the actuator area and its position related to the movement. As you may already know from your studies, and if you use a consistent system of units: Force = Pressure x Area. Just don't forget that if you calculate it to a force in the same intensity of the load, it will barely go to a rest in some point of its travel. Check the combination pumpXactuator to see if it will fit your problem.

Finally, everything that's urgent is urgent because someone didn't do when it had to be done.