Pentalift Blog - Elevating Dock Lift News
August 19, 2016, 12:58 pm - The majority of dock lift manufacturers use lift cylinders that “dead end” when the lift cylinder is fully extended. “Dead ending” the lift cylinder puts stress into the lift cylinder components. The power unit’s pressure relief valve must open and mechanical stops are required. A PentaFlow Lift Cylinder has an internal mechanical valve that opens automatically every time the cylinder reaches full extension. The hydraulic oil is ported directly back to the reservoir. Contact a Pentalift Sales Representative for more information.
August 5, 2016, 9:58 am - This question is asked often. A 1hp, 3hp; 5hp etc. power unit will all raise a dock lift of any capacity. The reason for increasing the horsepower rating is related to the lifting speed. As the lifting capacity gets increased, additional lift cylinders are required to lift the extra weight. To fill the lift cylinders in a time that is acceptable to raise the dock lift, the volume of oil being pumped to the lift cylinders is increased. This requires a larger volume pump. To operate the larger volume pump, a higher horsepower rated motor is required. Contact a Pentalift Sales Representative for more information.
July 7, 2016, 2:28 pm - Only if you are using a lift truck on your dock lift would you require an Automatic Hydraulic Roll-Off-Stop. When the dock lift is in the lowered, closed position, the roll-off-stop is flat. The lift truck drives across the roll-off-stop onto the platform. When the "up" button is activated, the roll-off-stop is powered into the vertical position before the dock lift begins to rise. When the dock lift is in the raised position, the lift truck drives onto the delivery truck. When the lift truck backs out of the truck, the roll-off-stop prevents the lift truck from accidentally driving off the dock lift and falling to the lower level. Contact a Pentalift Sales Representative for more information.
June 24, 2016, 2:36 pm - In a word, many. As standard, most Dock Lift manufacturers offer a hand held push button control with an up and down button. The push button is attached to the power unit by an electrical cord. The control cord can vary in length.Retractable coil cords are very common. They are often 5’ long retracted and stretch up to 20’ long extended, providing the operator with increased mobility. Controls can be installed on a post on the platform or in a wall-installed control panel. The specific application dictates what is best. Refer to a reputable Dock Lift manufacturer for their suggestions. Contact a Pentalift Sales Representative for more information.
June 17, 2016, 8:16 am - They actually serve the exact same function. Some manufacturers refer to them as Elevating Docks and others refer to them as Dock Lifts. It is the same with the common terminology, hinged lips and hinged bridge plates as well as with safety trip bars and toe sensors, to name a couple of examples. Different words, same function. Contact a Pentalift Sales Representative for more information.