CNC Rotary tables are designed to have continuous interpolation with machine axes. But it is possible only if the controller of the machine has the capability of handling regular 4th axis.
Maximum cutting forces allowed on the tables differs based on the size of the table. If application calls for the continuous interpolation then the max torque can applied on the table should be with in the worm gear torque capacity of the Rotary table. In case of the positioning the torque can be applied on the table while machining to be with in the clamping torque capacity of the table
Max speed of the table depends on the speed of the motor and gear ratio of the table. Max speed of the Motor for the Table size upto dia 250 can be 3000 RPM. For the tables Dia 320 and above motor RPM can be max 2000 RPM.
For Rotary tables up to Dia 630 the worm wheel is made of aluminum bronze and for tables beyond Dia 800 it is Phosphor bronze. Worm shaft is made of case hardened steel.
First oil change after 60 days. For continuous operation change every 3 months, if table is use intermittently oil to be changed in 6 month. If the is not used for 6 month, oil to be changed before it put in use.
Type of clamp is depending on the torque requirement to withstand the machining forces. If the torque generated by the machining forces is higher than the capacity of pneumatic clamping torque capacity of the table then hydraulic clamping is recommended.