Products

The cylinder rod’s movement is regulated by the amount and direction of oil flow propelled by a gear pump.  The rotating direction of the pump is determined by the rotating direction of a servo motor which is controlled by input signals.  Once the pump comes to rest, then the rod stops.  When the pump speed is altered, the rod speed varies accordingly.  In sum, the change of pumping direction produces the change of direction of the rod movement, and the speed of pump dictates the amount of oil flowing between the oil reservoir and the cylinder, which results in the change of the speed of the cylinder rod movement.  Thus all valves can be eliminated from the unit.  The thrust of the rod is controlled by oil pressure in the cylinder. The oil pressure is regulated by the torque on the motor.

HySerpack employs a direct drive method.

      The conventional hydraulic system keeps its motor and pump running in full even while the cylinder makes no movement.     It wastes a large amount of energy and consequently increases the temperature of oil in the cylinder.  The rise of oil temperature requires either an unnecessarily large oil tank for cooling oil down in due course or an enforced oil cooling system which has awfully poor energy efficiency.  As for HySerpack, the motor and pump stop when the actuator rests.  Therefore no energy is consumed even while it is pressurizing objects as long as it does not move.  Thus HySerpack is an extremely effective energy saving unit.

HySerpack controls the cylinder rod movement only by the direction, amount and pressure of fluid oil discharged from the pump.

Therefore no control valve is required at all.  Once all control valves are eliminated, no piping is required except for the very short ones which connect the pump and the cylinder.  HySerpack is a self-contained electro-driven actuator which can be incorporated into a complete system quickly and easily.

HySerpack is a self-contained servo-driven hydraulic unit. A drive motor, pump, oil tank, cylinder and all other ancillary parts are assembled into one compact unit then oil is filled up before test runs in shop. A servo amp and operating software come with the unit. During the test both software and hardware are fine-tuned so they function as designed without any further adjustments.  Thus as soon as HySerpack is installed and incorporated into a machine on site, the machine start working as designed and desired.