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Home > Product > SE-HSZ
SE-HSZ Series 
(220 to 350 metric tons – 2150 to 3430 kN) 


By incorporationg a second generation direct drive system, this series delivers low inertia, high response injection, and attains the injection performance of a hydraulic machine with accumulator.


Sumitomo Plastics Machinery’s new SE-HSZ Series high-speed all-electric injection molding machines bring the advantages of Sumitomo’s advanced direct-drive motor technology to high-speed molding applications in the mid-tonnage range. Available in models from 242 to 385 US tons (220 to 350 metric tons), the SE-HSZ provides mid-range applications with the energy efficiency, cleaner molding environment and precision benefits of an all-electric combined with the higher speeds and pressures typically found only on high-performance hybrids and hydraulics.


Equipped with direct-drive motors for both injection and clamping, the SE-HSZ is ideally suited for parts with a cycle time less than 15 seconds, thin-wall parts and other applications requiring high-speed injection.

These direct-drive motors have a lighter, more compact, low-inertia/high-torque design that draws power only as it is needed, is easier and faster to stop and start, and is exceptionally precise. The resulting performance specs speak for themselves:

  • New, higher Injection speeds of 13.8 in/sec (350mm/sec)
  • Velocity response of 25 milliseconds
  • Injection pressures up to 42,185 psi
  • Mold open/close speed of 51.2 in/sec (1300mm/sec)

Raising the bar for injection molding machine control, the SE-HDZ is equipped with Sumitomo’s new Z Control, an easy-to-use PC-based control that provides a new level of injection molding precision with low-pressure filling and reduced clamp force. Unique attributes of the Z include:

  • New Flow Front Control (FFC) System (patent pending) that optimizes the flow front further allowing control of low internal pressures inside the cavities
  • New Minimum Clamping Molding (MCM) System which helps avoid flash, burn spots and shorts shots, and can reduce mold wear, cycle time and power consumption
  • New Simple Process Setting (SPS) System which allows easy setup and operations while helping the operator avoid oversights and mistakes

Several other innovative features, unique to Sumitomo, can also be found on the SE-HSZ:

  • Low-shear, low-temperature SM screw
  • Double Center Press Platen design that ensures superior surface pressure balance even in the center surface area of the mold
  • Twin-cylinder high contact force that provides contact force equivalent to a hydraulic clamp machine plus excellent mold protection and faster cycle times
  • Constant feedback clamp force sensor for exceptionally stable clamp force control
  • New high-precision mold height adjustment using a highly precise rotary encoder

The SE-HSZ is backed by Sumitomo’s comprehensive Customer Satisfaction Program which includes the industry’s best warranty program, worry-free parts, responsive field service and financing availability — plus other important advantages such as 3 days free in-plant training for new customers.

Please use the SE-HSZ Info buttons above at right for more information about this new series of mid-sized high-speed all-electric injection molding machines.