Pentalift Blog - Repair and Maintenance

What is Considered to be a High Cycle Lift Table Application?

The majority of lift tables are designed to be cycled 8 times per hour during an 8 hour shift, 5 days a week. In an application that needs more cycles than the standard amount, lift tables are recommended to be equipped with a high cycle package. A high cycle package consists of cam followers in place of leg rollers, spherical bearings in place of bushings, and often equipped with a central lubrication system. In addition to these components, high cycle lift tables are often specified with a continuous running power unit. A continuous running power unit is a power unit that keeps the motor running even when the lift table is not in use which eliminates any jog starting of the power unit resulting in pre mature wear.

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We are Building a New Factory. How Do We Determine our Dock Leveler Load Capacity?

The common dynamic total load multiplier is 2.5 when calculating capacity for standard dock leveler applications. However, dynamic total load multiplier can range from 2.0 to 5.0, depending on the severity of the application and the manufacturer. Since there is no recognized industry standard, manufacturers rate their capacities differently. Some may use lower multipliers to be more competitively priced or leave the impression that their particular dock leveler is stronger than other manufacturers. Variables like fork trucks, fork truck weights, type and speed could create the need to increase the dynamic total load multiplier. Click here for an example on how to calculate.

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Why Would You Project or Cantilever a Dock Leveler Pit?

Declining driveway approaches are very common at the loading dock area. Incoming vehicles are backed into position at an angle determined by the percentage of the decline. The most effective method to address this situation is to project the dock leveler pit forward. The amount of projection is determined by the percentage of the driveway decline. Projecting the dock leveler pit at the onset eliminates damage caused by vehicle impact to the building and the resultant need for aftermarket bumper extensions, longer hinged lip assemblies etc. to address this condition. Please click here for more information.

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What Are The Different Operating Choices For Lift Tables?

There are 3 different operating types of lift tables. They are hydraulic, pneumatic and self leveling. All 3 styles are different but have their benefits, depending on what the application is. Hydraulic lift tables offer the widest range of features and customization regarding platform size, capacity, vertical travel, and safety features. Pneumatic lift tables are offered in an air bag design which is limited to 24” of travel. The air bag lift tables may be limited but if an airline is the only power source available to run the lift table, an air motor running a hydraulic system is available. Pneumatic lift tables are commonly used in wash down or areas where electrical sparking can cause a concern. Self leveling lift tables are mostly used for ergonomic applications. Self leveling lift tables require no power at all but do require a fork truck in order to load or unload the full pallet.

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Factors to Consider When Deciding Between a Hydraulic Dock Leveler or a Mechanical Dock Leveler

Choosing between a hydraulic dock leveler and mechanical dock leveler depends on what is most important to the user. Mechanical dock levelers cost less than hydraulic dock levelers, but mechanical dock levelers do require periodic (2 times a year) adjustable maintenance throughout use of the equipment. Hydraulic levelers can handle higher load capacities and also operate more easily than mechanical dock levelers, due to a manual push button that operates the power unit. While hydraulic dock levelers do require a power source, mechanical dock levelers do not require any sort of electric power due to its spring activation. Both hydraulic dock levelers and mechanical dock levelers should be lubricated and inspected regularly to prolong safe operation.

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