To answer that question first we should consider the different operational designs that are available for lift tables. Lift tables are most commonly available in hydraulic, pneumatic, and self-leveling operations. Pneumatic lift tables are acceptable or required in certain applications in which electrical and hydraulic components are not desired or allowed. They are not as precise in positioning as hydraulic. The sizing availability is limited as well. They are typically limited to 24” of vertical travel.  https://... Read More
A tandem lift table has 2 or more sets of scissor legs positioned end to end with a common platform and frame. Tandem lift tables are most commonly used to lift, support and lower long loads such as lengths of steel, pipe, lumber and large assemblies. https://www.pentalift.com/wp-content/uploads/2020/11/8low-tandem.pdf The platform length determines the number of scissor leg assemblies be used and the positioning to safely support the full length of the load on the platform. By placing more than one leg se... Read More
Self-leveling lift tables are weight sensitive and are most commonly used in a palletizing or de-palletizing application. Self-leveling lift table platforms are typically 48” x 48” and are equipped with a rotating top. In a palletizing application self-leveling lift tables are at rest in the raised position with an empty pallet on the lift table platform. The lift table is held in the raised position by extended compression springs. As weight is added to the pallet the springs compress and the platform gradually lowers keeping the operators work height at an ergonomically correct positi... Read More
Semi portable, fully portable and power driven are the 3 most common portability options available for lift tables. Semi portable models are equipped with 2 load rollers and bearings on one end of the lift table frame and a removable 2 wheeled dolly handle at the other end of the frame. Engaging the dolly handle raises that end of the frame slightly up off the floor transferring the weight to the rollers located on the opposite end of the frame providing portability. The lift table... Read More
Yes multiple lift tables can be ordered with synchronized operation. The question to first address is what level of synchronization is actually required and is the weight of the load on each lift table the same?  Basic synchronization can often be accomplished through the use of a geared hydraulic flow divider. This system provides fairly consistent accuracy and repeatability however there may be some minor height variations during the operating cycle. With this design when all of the lift tables are fully lowered or fully raised the synchronization automatically resets. The next level of syn... Read More
ProSeries remote power units are generally installed right on the floor within close proximity of the lift table. Remote power units are supplied with 10’ of hydraulic hose as standard however longer hydraulic hose lengths are available; depending on the model up to 35’ of hydraulic hose can be ordered. An optional wall mounting bracket is available to install the power unit up off the floor and out of harm’s way. It is recommended to install this option with a minimum of 6’ of under clearance to minimize ... Read More
To understand why the scissor leg sets are stacked on top of each other first keep inmind thatthe longer the scissor leg assembly the higher the lift will go. For example a 4’ long leg set will provide approximately 3’ of lift, a 6’ long leg set will provide approximately 4’ of lift, an 8’ long leg set will provide approximately 5’ of lift etc. Following this ratio/guideline a lift table application that requires 8’ of lift would typically require a 12’ long leg set. Many applications do not have the 12’ of floor space available to install a lift table that will lift a load 8... Read More
The main concern is operator safety as it relates to eliminating potential pinch/shear/crush points when the lift table platform and rotating top lowers into the pit. First the lift table is equipped with . Electric toes sensors are an interlocked 4 sided bar assembly that is suspended under the lower 4 sided edge of the lift table platform. When loweri... Read More
On an electro-hydraulic lift table the lift motor is mechanically coupled to the hydraulic pump. When the lift motor is activated the hydraulic system pumps the hydraulic oil to the lift cylinders and the lift table rises. When the lift motor is shut off by there is a slight overrun “freewheel” effect, the pump continues to pump oil for a split second and the lift table rises slightly. If precise positioning is required a Sure Stop Valve is added to the hydraulic circuit. At rest the Sure Stop Valve is normally close... Read More
As standard dock lifts are supplied with removable guard rails. At the time of manufacture the guard rails are bolted to a threaded plate that is welded to the dock lift platform. These guard rails are now removable however they require hand tools to first remove the locking bolts, 4 locking bolts per guard rail. Based on the amount of work required and the time involved removing this style of guard rail is not a common practice to do repetitively. Another option... Read More