Pentalift Blog - Supply Chain

Pentalift Introduces a New Model of Vehicle Restraint

The majority of vehicle restraints are fastened directly to the face of the foundation wall. In some cases the foundation wall will not withstand the forces to hold the vehicle restraint in position such as a concrete block wall or a brick wall. In new construction with the concrete pre cast (tilt up) wall the contractor often specifies that nothing is to be bolted to the face of the wall. To address a vehicle restraint installation that cannot be attached to the foundation wall Pentalift has designed a new model of vehicle restraint that is bolted down into pre cast concrete. A concrete pad is poured of sufficient depth and strength to accommodate the forces and loads to hold the truck in position. The newly released Pentalift model HFR32SM is positioned tight to the face of the foundation wall , centered under the overhead door and is bolted down into a precast concrete pad.

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Why do higher capacity lift tables require a higher HP power unit?

Technically they don’t require a higher HP power unit to operate but almost every time they are specified. A lift table power unit consists of 5 primary components, electric motor, hydraulic pump, hydraulic valve, oil reservoir and a control station. As lift tables increase in lifting capacity more cylinders are used in the structural design to lift the load. Additional lift cylinders increase the volume of hydraulic oil required to operate the lift table. To provide a suitable lift speed a larger volume hydraulic pump is required to increase the oil flow rate to the lift cylinders. To drive the larger volume pump a higher HP electric motor is required. For example a 20,000 lb capacity lift table with a 3 HP power unit takes approximately 121 seconds to lift 59”. The same lift table equipped with a 10 HP power unit takes approximately 25 seconds to lift 59”. Higher HP power units drive higher volume pumps which increases lift speed.

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What are the flaps on the front of dock seals for?

Flaps or as they are commonly referred to as “wear pleats” extend the life of a compression style dock seal. With the truck backed into position there should be 4” -6” of dock seal foam compression, this amount of compression provides the best seal. As the truck is loaded or unloaded it is natural for the truck bed to move up and down. The trucks up and down movement has an abrasive effect on the front of the dock seal side pads, the wear pleats provide an outer layer of protection that allows movement with the truck bed and extends the life of the dock seal.

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What to Look for When Purchasing a Dock Lift.

When selecting a dock lift, you want to make sure you find the most appropriate one for your application. The 5 main things to look for when choosing a dock lift would be whether the equipment is going to be floor mounted or pit installed, platform dimensions, what the lifting and roll over capacities will be, bridge lengths and what voltage will be offered to the dock lift at the place of installation. The manufacturer needs to know whether the equipment is going to be pit installed or placed on the floor so that the correct safety features can be incorporated. The manufacturer must also know what platform size and the required capacity of the equipment to ensure safe and stable use in the work area. A dock lift manufacturer must also know the distance a truck will be from the dock lift when loading and unloading, to ensure the correct bridges are equipped for safe and sturdy use. A manufacturer must also know the available supply voltage to ensure the right power unit is equipped for the dock lift. While there may be additional detail questions, most dock equipment manufactures will be able to supply at least a concept and budget price once they have the above information.

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Characteristics of Tandem Lift Tables.

A Tandem Lift Table is a table that is used for an application in which the platform’s length needs to be much longer than the platform’s width. Tandem Lift Tables are generally used to assist lengthy and narrow applications such as long pieces of wood, 2x4’s or hydro poles. To support the oversized load, there are 2 sets of scissor legs under the table’s platform to accommodate the load it is lifting. Tandem lift tables cost more than standard lift tables but are the perfect piece of equipment for certain applications.

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