LN Series

Two-Platen Injection Molding Machine

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Two-Platen Injection Molding Machine
  • Description
  • Applications
  • Key Components
  • Features
  • Specifications
  • FAQs
Two-Platen Injection Molding Machine
Description
500-4000ton plastic injection molding machine for mid-sized/large-sized plastic parts

Designed to mold medium to large plastic parts efficiently, this two-platen injection molding machine integrates features that boost its performance and usability. The plastic injection molding machine uses low-friction linear guides for mold locking, speeding up both the mold opening and closing processes. A screw, specially designed with a high L/D ratio, enhances the plasticizing capabilities, allowing for consistent and effective molding. Linear guides support the lock mold and injection platform, reducing resistance and wear and providing smooth operation with precise mold locking accuracy of up to ±1%. This plastic injection machine handles clamping forces from 500 to 4000 tons, suitable for a wide range of molding tasks.

Injection Unit
  • Injection stroke: 420mm-1310mm
  • Injection capacity: 1688g-45293g
  • Injection pressure: 1259kgf/cm²-2466kgf/cm²
  • Injection rate: 495g/s-2910g/s
Clamping Unit
  • Clamping force: 500tonf-4000tonf
  • Ejector stroke: 250mm-550mm
  • Drive system: hydraulic/hybrid
Applications

The injection molding machine is perfect for manufacturing large plastic items such as automotive bumpers, dashboard components, and air conditioning compressor casings. It is also suitable for producing heavy-duty plastic pallets for loads exceeding 3000 tons, demonstrating its capability to handle diverse industrial molding needs.

Samples of Plastic Injection Molded Parts
Car Fender Car Fender
Car Bumper Car Bumper
Traffic Cone Traffic Cone
Washer Inner Tub Washer Inner Tub
Storage Box Storage Box
Plastic Rattan Sofa Plastic Rattan Sofa
Pipe Pipe
Stool Stool
Storage box Storage box
Interior panel Interior panel
Car interior Car interior
Car bumper Car bumper
    1. Injection molding of storage box
    2. Injection molding of storage box
All-Electric Injection Molding Machine
Key Components
Large pillar clamping system
Large pillar clamping system

Engineered for precise engagement and strong locking force, ensuring stable and reliable molding.

High-pressure cylinder design
High-pressure cylinder design

Incorporates high-pressure cylinders and valves for even force distribution and robust lock mold force during injection processes.

Efficient hydraulic circuit
Efficient hydraulic circuit

The system includes a high-pressure release for mold opening, which boosts the opening force and ensures smooth operations, alongside low-pressure protection to extend mold life.

Durable injection unit
Durable injection unit

Features a multi-axis drive mechanism that provides stability and precision throughout the injection process.

Removable Tie Bar Unit (Optional)
Removable Tie Bar Unit (Optional)

This feature overcomes factory height limitations and simplifies mold installation, especially for large molds that cannot be loaded from the top of the machine.

Moving Platen Support System
Moving Platen Support System

Specifically designed for two-platen machines, this moving platen support structure ensures the parallelism and accuracy of the platen's movement, even when heavy molds are mounted.

Clamping Unit
Clamping Unit

The platens are designed with the aid of Finite Element Method (FEM) analysis to ensure uniform force distribution across the machine and mold. This extends machine lifespan and enhances product quality.

Features
  • The design includes durable structures from leading European manufacturers, enhancing the injection molding machine's longevity.
  • Its compact lock mechanism reduces space requirements in factories by over 30%.
  • Offers a large mold stroke and capacity, making it ideal for producing a wide variety of products, including large deep bucket-type items.
  • Designed with minimal elbow-joint wear, the molding system requires less lubrication and reduces maintenance costs.
  • a supplementary pressure cylinder maintains precise lock mold force within a ±1% error margin during injection.
Specifications
Model UNIT LN-500 LN-1100
Injection Unit Type - 4600 5900 7000 8200 10300
Screw diameter mm 75 85 95 85 95 105 95 100 110 100 110 120 110 120 130
Injection stroke mm 420 430 450 495 540
Theoretical shot volume  cm³ 1855 2382 2976 2439 3046 3721 3188 3533 4274 3886 4702 5595 5129 6104 7164
Shot weight of injection (PS)  gram 1688 2168 2708 2219 2772 3387 2901 3215 3890 3536 4279 5092 4668 5555 6519
Injection pressure  kgf/cm² 2466 1920 1537 2445 1957 1602 2199 1985 1640 2117 1749 1470 2008 1687 1438
Injection speed mm/sec 123 126 112 105 106
Injection rate  cm³/sec 495 636 794 649 811 991 722 800 968 750 907 1080 912 1085 1274
Mold Clamping
Unit 		Mold clamping force tonf 500 1100
Mold clamping stroke mm 1250/750 2050/1400
Mold thickness mm 400~900 600~1250
Max. weight of mold tonf 5 13
Daylight mm 1650 2650
Suggested min mold diameter (H×V) mm 640×570 875×785
Tie bar spacing (H×V) mm 910×810 1250×1120
Mold platen (H×V) mm 1380×1280 1800×1680
Ejector stroke mm 250 350
Ejector force tonf 11 23.9
Electrical Equipment Max. pump driving motor kW 45*2 45+30*2 45+30*2 45+30*2 45*3
Temperature controller (range)set (0-400C)×8 (0-400℃)×8 ( 0-400℃)×8 ( 0-400℃)×8 ( 0-400C)×8
Heater capacity kW 37.55 43.77 46.27 51.29 63.38
General Machine dimensions (L×W×H) mm 8200×2700×2200 11400×3400×2650
Oil tank capacity liter 1210 2250
Machine weight metric tons 26 70
Max. system pressure kgf/cm² 140 140 140 140 140
Check the PDF for details

The clamping force ranges from 500 tons to 4000 tons, offering larger mold stroke and capacity for manufacturing large plastic parts such as automotive bumpers, dashboards, and air conditioner compressor housings.

The LN series supports expansion to two-component or three-component injection, suitable for two-color, multi-color, and soft-hard combination products. It can be equipped with multi-station rotary tables or multiple injection units to achieve complex multi-material processes.

  • More compact structure: The two-platen design reduces overall machine length, saving over 30% of factory space.
  • Lower maintenance costs: The absence of a tail platen structure reduces wear on mechanical components, extending maintenance cycles.
  • High molding stability: The two platens offer enhanced rigidity and uniform clamping force distribution, significantly reducing the risk of flash.
    •
    Contact Us to start the conversation today.

    Fu Chun Shin, since 1974, is the leading brand of injection molding machine in Taiwan.

    CNBFOR3@fcs.com.tw
    +86-13456155250 (WhatsApp/WeChat)
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