Welcome to MT-RSR, your one-stop source for all your tire shop equipment needs! With our extensive selection of jacks, we've got you covered for any lifting task.
DIFFERENT KINDS OF JACKS
FLOOR JACKS
A floor jack is a mechanical device used to lift vehicles off the ground for maintenance, repairs, or tire changes. It comprises a long handle for manual operation, a hydraulic pump mechanism, and a lifting platform or saddle that makes contact with the vehicle's frame or chassis to lift it.
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JACK STAND
A jack stand is a mechanical device that supports a vehicle when a floor jack or hydraulic jack is lifted off the ground. Once the vehicle has been raised to the desired height, the jack stands are placed underneath the vehicle's frame or axle, offering a stable and secure platform that prevents the vehicle from falling or shifting during maintenance or repairs. A vehicle that is being worked on should never be supported by just the jack – jack stands are incredibly important in the rare case of hydraulic jack failure. These stands usually come with an adjustable height mechanism and sturdy construction designed to safely support the vehicle's weight.
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BOTTLE JACK
A bottle jack is a hydraulic jack designed to lift heavy loads, such as vehicles, using hydraulic pressure. It is named after its cylindrical shape, which resembles a bottle. Bottle jacks are commonly used for lifting vehicles, trailers, large equipment, and even entire buildings sometimes! They consist of a hydraulic cylinder housed in a metal casing, along with a handle used to pump hydraulic fluid into the cylinder. When the handle is pumped, hydraulic pressure increases, causing the piston inside the cylinder to rise and lift the load. Bottle jacks are often small and easy to move around, making them useful for various automotive and industrial applications.
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CHOOSING JACK CAPACITIES
When it comes to lifting vehicles, choosing the right capacity is of utmost importance. Working under vehicles can be risky, and choosing the correct capacity to minimize any unnecessary risks is essential.
The capacity of a jack is the amount of force the jack can safely produce and lift, and it is typically measured in US/Imperial tons (1 ton = 2,000 lb). To determine the appropriate capacity of the jack, it is crucial to understand the physics and math working behind it. Usually, we lift only half of the vehicle with the jack, and at least two wheels remain on the ground. In this arrangement, the vehicle acts as a second-class lever, with the side of the vehicle not being lifted acting as the fulcrum.
Assuming a perfectly corner-balanced vehicle, which means 25% of the vehicle weight is on each wheel, a 4,000-pound vehicle would only require 2,000 pounds of force to lift one side. However, most vehicles do not have a perfect front-to-back and driver-to-passenger side weight distribution. In some cases, such as pickup trucks, semis, etc., the weight distribution can cause up to 75% of the vehicle weight to land on the front two wheels. This would be an extreme scenario, but it can exist.
Therefore, getting a jack with a capacity of at least 75% of the vehicle weight is essential. For instance, an 8,000 lb vehicle would require a minimum 3-ton (6,000 lb) capacity jack to lift it safely.
In conclusion, selecting the right capacity jack is crucial for the safety of the user and any individuals in the vicinity. By understanding the mathematics behind the capacity, one can choose the appropriate jack capacity for their vehicle, minimizing any unnecessary risks. Therefore, it is crucial to select a jack with an adequate capacity to avoid any danger and ensure safe lifting.
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