SE-HS Injection Features
The mid-sized high-speed SE-HS all-electric injection molding machine uses two Sumitomo-built AC servo motors with full closed-loop control and digital sensors for the injection unit.
The motor for injection on the SE-HS is a direct-drive (beltless) motor. This advanced motor technology, field proven on the SED Series, features a lighter, more compact, low inertia design that delivers significant advantages:
- Higher injection power (torque) and velocity — With injection speeds 11.81 in/sec (300mm/sec), and injection pressures up to 42,185 psi (2950 kgf/cm2) the SE-HS provides the performance capabilities for the most demanding applications.
- Faster velocity response, unaffected by belt elasticity — Well-suited for thin-wall parts, the high-speed injection combined with a velocity response of 25 milliseconds avoids temperature differences that can cause part deformation or warping.
- Unerring velocity control from .01 mm/sec to the maximum velocity for superior precision and repeatability
Sumitomo’s extensive experience in designing and manufacturing electric motors ensures that each machine configuration has the absolute best combination of motors to ensure superior performance (the right amount of torque) while keeping the machine reasonably sized and priced. For example, the C900L injection unit employs a single axis direct drive motor, whereas the C1250 and C1700 motors have two, large-load capacity ball screws (dual axis) to ensure efficient power transmission and durability while keeping the size compact.
Other advantages of the SE-HS Series injection unit include:
- 10 modes or ramps of filling speed and hold pressure response that allow the operator to precisely set the plasticizing acceleration and deceleration response
- Unerring injection velocity control and exceptional velocity response are provided by the use of direct digital control
- Programmable ramping of the velocity and excellent linearity from low- to high-range velocities allows precision molding of diverse applications
- New high-contact force nozzle touch system comparable to that of a hydraulic clamp machine
- Flash Speed Mode which provides fast response control of velocity and pressure, before and after V/P switchover, to prevent short shots and warp from over-packing
- Synchronized Plasticizing Mode, for resins with low viscosity or uneven pellet size, that provides optimized control of both screw position and back pressure, ensuring plasticizing stability
- New low-shear, low-temperature SM screw
Please use the Info buttons above at right for more information about SE-HS Series mid-sized high-speed all-electric injection molding machines.
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SE-HS Info
