We offer a variety of Liquid Injection Molding Machines other than the one listed below. These can be build with many different types of our machines (electric, hybrid, hydraulic, horizontal, vertical, etc…), injection sizes, and tonnages.
Please contact us for more details.
Here is one of the examples of LIM machine configuration:
NISSEI, who possesses 25 years of proven technology in LIM, is introducing a new LSR machine FNX80-9ALM. This machine is equipped with a servo-driven X-Pump, and the new pumping system feeds two-component LSR materials. It materializes the ultimate level of energy-saving, reduction of material loss, flash-less molding of liquid silicone rubber.
X-Pump Equipped “LRS” Machine
- The system with 25 years of proven record
- New functions added
・・・Shut valve on the hopper throat, HYV nozzle on the nozzle tip, liquid B nozzle, and more functions added
- The ultimate level of energy-savings
・・・About 35% saving in power consumption (in comparison with conventional hydraulic machines)
・・・Over-cooling prevention by the temperature control of stationary and movable platens
・・・Cold insulation material used on the injection unit and heat insulation board used around the mold area
Material Loss Reduced (Purging material during production shutdown reduced)
- Reduction in residing resin inside the barrel
・・・Resident resin preventive motion function
- Reduction in residing resin inside the cold runner
・・・Liquid B direct permutation method
Flash-Free Molding of Liquid Silicone Rubber
- Reduction in fluctuations between shots
・・・Stable material feed by Nissei original metering device
- Stabilization of injection motion by feedback control
NISSEI Type Metering Device
Feeder
Material shutoff valve
Molding precision has been improved by the monitoring of barrel inner pressure and material feeding pressure from material shutoff valve on the feeding port and resin pressure sensor (optional)
Molding Stability (comparison of weight deviation)
Conventional method
NISSEI metering device
Full shot
Short shot
Full shot
Short shot
Ave. value
7.52
5.77
7.55
5.79
Ave. deviation
0.027
0.037
0.011
0.014
3σn
0.082
0.112
0.035
0.044
Intelligent hybrid X-pump system
Servomotor rotates at required speed only when it is necessary.
Flow...revolution speed of a servomotor
Pressure...torque of a servomotor
Patent pending
Material-Saving
Conventional Method
Molding finished
Liquid A or B permutation purge
Completion
Start-up
A & B mixing purge
Molding start
NISSEI Method
Molding finished
Resident resin prevention ON (A & B mixing)
Start-up
Molding start
#1 Comparison of purging time
Conventional method
One-side material purging:
60 minutes each time x2 (start-up and completion) = 120min
NISSEI method
Switch ON/OFF only
#2 Comparison of purging volume
Conventional method
200cm3 each time x2 (start-up and completion) = 400cm3
