Plate Jacks are metallic bellows, sandwiched between two bearing plates, and having ports for injection and venting of the fluid to be used to extend the jack. The metallic bellows have flat bearing surfaces which provide thrust against the bearing plates, and a toroidal perimeter which allows expansion up to the rated extension of the jack with a uniform pressure/thrust relationship.
Types of Configuration
Standard Configuration
For a working pressure of 2,500 psi
Transfusion Configuration
For adjustment of load or settlement over time, then solidified for permanent installation
Plate Jack Series
Load capacities can range from 18 kips to 6,000 kips
All standard jacks have an unexpanded thickness of 1 1/4”
Plate Jacks are manufactured in two operating pressure ranges: The “Standard” series and The “5” series
Standard Series Plate Jack
For a working pressure of 2,500 psi
Maximum rated extension (lift) of all listed jacks is 1”
Unextended thickness of “5” series jacks is 1 1/4”
“5” Series Plate Jack
For applications where the available footprint is too small to permit use of a standard Plate Jack
Maximum rated extension (lift) of “5” series jacks is 1”
Unextended thickness of “5” series jacks is 1 5/16”
The operation configuration
For all sizes and capacities, the configuration of Plate Jacks is essentially the same
Vertical Lift
Horizontal Thrust
Constant Force and Constant Extension
