Plustech
Thermoplastic LSR MIM MG
    
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TECHNOLOGY
V-LINE Two-Stage Plunger System
        Plasticizing
        Back Flow Prevention
        Injection
Hybrid Direct Clamping System

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Automotive
Medical
Optics
Electrical / Electronics

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LIQUID SILICONE & RUBBER (Sil-Pro series)


Silicone rubber is widely used in medical, automotive, aerospace, electrical, and industrial applications, because of its unique characteristics in flexibility over wide rage of temperature, high resistance to compression set, a wide range of viscosity, and higher resistance to chemicals.

Recently, there are increasing needs for LSR molding. As a result, the needs
require better performance in injection molding machines to meet more complex
shape and higher accuracy LSR parts. Sodick Plustech offers a dedicated design
for LSR machines with the V-LINE Plunger system, "SIL-PRO" series. Through the
experience with ultra-precision thermoplastic injection molding machines,
SIL-PRO series provide outstanding performance on your LSR molding needs.

  • Dedicated Design for LSR (V-LINE PLUNGER SYSTEM)
  • Injection Valve Using LINEAR MOTOR TECHNOLOGY
  • EXACT DOSING - No Short Shots, No Over-packing - Flashless Molding
  • OUTSTANDING Weight and Size Deviation


V-LINE Plunger System


V-LINE Plunger System
v-line
The V-Line system is equipped with our patented back-flow prevention, which is mechanically engineered to shut off the material feeding pressure before injection. Our V-LINE Plunger system is built to provide an exceptional low-speed/low pressure control (0.004"/sec injection speed) using our linear motor technology.
Conventional IN-LINE Screw System
screw system
screw system
In the conventional reciprocating screw system, it is extremely difficult to control low viscosity material shot size. The "Check Ring" is at open position when metering is finished. The material leakage at injection is evident due to the feeding pressure from screw side. (Pressure has to be compensated to close the check ring). The "shut-off nozzle" is required because there is constant feeding pressure from screw to nozzle.


LINEAR MOTOR TECHNOLOGY


Sodick Plustech develops the injection valve using Linear Motor technology as a drive. By using a linear motor to control the spool of injection valve, the step response becomes 10 times faster than that of conventional servo valve (3msec). As a result, V-LINE Plunger achieves excellent injection control including acceleration and deceleration of the injection speed, vp switch-over position stability, and linearity of molding profile.

Structure of Linear Direct Valve Super Low Speed Control
Liner Direct Valve Chart


VARIETY OF CONFIGURATIONS


SIL-PRO series are available in many different configurations (both horizontal and vertical injection).

Horizontal Vertical

Clamping Unit

Max clamping force tf (US ton) 5 (5.5) - 220 (242) 20 (22) - 150 (165)
Tie bar distance mm (inch) Up to 560 x 560 (22.0 x 22.0) Up to 525 x 525 (20.7 x 20.7)
Platen dimension mm (inch) Up to 680 x 680 (26.8 x 26.8)
 
Open Daylight mm (inch) Up to MAX 950 (37.4) 700 (27.6)
Min & Max mold thickness mm (inch) Up to 300 / 650 (11.8 / 25.6) 200 (7.9)

Plasticization & Injection Unit

Screw diameter mm (inch) 14 (0.55) - 50 (1.97) 14 (0.55) - 40 (1.57)
Plunger diameter mm (inch) 12 (0.47) - 50 (1.97) 12 (0.47) - 40 (1.57)
Theoretical injection volume cm3 (oz) 4.5 (0.15) - 392 (13.17) 4.5 (0.15) - 150 (5.04)
Sil-pro
v-line