This vacuum table series is an advanced version of the ST vacuum table. A 8 mm strong aluminum plate at the bottom of the vacuum table provides extra stability. This aluminum plate allows to fix the vacuum table on the most T-Slot grids. First you have to fix the aluminum plate on the T-Slot plate, then you can fix the vacuum table on the aluminium plate. That provides a very solid setup over the entire area of the table. The ultimate vacuum table for wet and dry machine-milling. We suggest to put our vacuum tables on line together with a suitable vacuum pump. We developed a special connection adapter with an adjustable calibre of approximately 1" - 1.75". With that adapter you can, of course, use an ordinary vacuum cleaner as a "vacuum pump" - just as you like. Moreover each module can be switched on or off by a valve or ball valve individually. The retaining force is proportional to covered area, the coefficient of friction and the pressure differential. In order to increase the coefficient of friction a hole rubber mat is within our shipment. This mat serves as a protection for the vacuum plate and if you work pieces need to be countersunk. Hole rubber mats are wearing parts! You can order such mats in our shop reasonably priced.