Most trolley jacks are made of steel, aluminium or a combination of both. They are occasionally made of cast iron. Whatever the material, these hydraulic lifting devices are very powerful indeed - the most commons sizes of jack capacities are 1.5, 2, 3 and 4 tonnes.
A floor trolley jack can take a lot of the backache out of changing a tyre - they can raise a vehicle with minimal physical by simply raising and lowering the long attached handle a few times - this is so much easier than using a scissor jack to do the same job.
The fact that these jacks are on castors of wheels is also a big benefit as it enables them to be easily moved into position below the lifting points on a small or large car, truck, van or other vehicle. A standard profile jack is fine for most vehicles but if you have a car with minimal ground clearance you may need to purchase a low-profile jack.
A floor jack will last for years if looked after carefully - you will need to carry out basic maintenance tasks when required to get the optimum performance out of a trolley jack, including changing and topping up the oil and purging air from the hydraulic system.
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