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LOG-S8 650 ton Servo Injection Molding Machine

S8 650 ton Servo Injection Molding Machine
S8 650 ton Servo Injection Molding Machine-1
S8 650 ton Servo Injection Molding Machine-2
eaton machine
S8 650 ton Servo Injection Molding Machine-3
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Drive and control unit 5
Drive and control unit 2
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LOG-S8 650

LOG-S8 650* ton Servo Injection Molding Machine

The LOG-S8 650 is an affordable, high-precision, high-speed plastic injection molding machine featuring a unique, rigid third-platen flange design with a highly adjustable L/D ratio and a user-friendly, smart Industry 4.0 KEBA control system that manages all operational aspects.

It includes a 5-point dual-toggle mechanism for high force amplification and a robust, high-power servo-hydraulic system that efficiently generates 650 metric tons of clamping force while reducing energy consumption by up to 80%.

Its modular design enables quick and easy mold changes, and the use of well-known international components simplifies maintenance and minimizes downtime.

The LOG-S8 650 is ideally suited for producing high-quality products across various industries, including food packaging, household products and appliances, electronics, automotive, pipe fittings, toys, gifts, and other sectors.

Specifications of LOG-S8 650

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LOG650 S8 Platen_V2
Platen Dimensions

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Clamping Unit

LOG Clamping Unit

  • 1. Toggle adopting the conjoined structure, improving the hardness of toggle, ensuring the uniform of toggle manufacture-size, minimizing the gap between pipe and pin, improve the accuracy and application life of toggle.
  • 2. First clamping platen using the box-type structure design, (thicken the thickness of platen, improving the hardness of platen, efficiently minimizing the deform caused by the force of tie bar.
  • 3. Unique third-platen flange design, when the third- platen deforms by the pressure, by the support of flange and tie bar. a reverse torque will minimizing the deform of the third-platen.
  • 4. Adopting gear-adjusting ring with high-precision, large-scale transfer and compact structure to facilitate customer adjusting (the mold thickness in manual or automatic mode.
  • 5. Steel bush in clamping unit adopts new structure, arrange rational holes of graphite to improve the effect of steel bush lubrication and the wear-resistance, reduces the usage of lubrication oil.
Injection Unit

LOG Injection Unit

  • 1. Injection unit adopts double-cylinder design, more higher injection pressure, more simpler structure and lower malfunction rate.
  • 2. Enlarged-cylinder, adopting two-cylinder design, effectively prevent the adhesive- material leaking phenomenon caused by the machine vibration or other reasons while the nozzle is under high-speed operation.
  • 3. Adopting graphite bush, improving the wear- resistance, reducing the frequency of using lubrication oil, effectively improve the cleanness of the injection part.
  • 4. Injection cylinder adopts low-frictional seals, improving the response rate and improve the stability under the complicated processes of injection.
  • 5. Bridge-style design, for different L/D ratio plasticizing parts.

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DRW_LOGIMM ServoSchematic
LOG Servo Drive
Servo Drive Features

LOG Servo Drive Features

  • High-speed communication via bus to realize the actual pressure, the flow of real-time monitoring of multiple signals, driver output current, load rate.
  • Medium-sized syringe of dual-pump or multiple-pump confluence way, using a special servo control technology to achieve the perfect synchronization control of servo and oil pump, to achieve the perfect confluence of multiple oil pumps.
Power Consumption Chart

Effect Test Cases

LOG Energy-savings Effect

Test Case

  • Test product: snack box
  • Material: PP
  • Weight: 21g
  • Wall thickness: 0.43mm
  • Cavities: 2

Test condition

  • Machines: 250Ton, S8 Series

Hydraulic pump:

  • Pump type: one fixed displacement, one variable displacement, one servo displacement
  • Displacement: Same on each machine
  • Oil temperature: 40OC

Machine settings: Each machine had the same settings
Processing time: Several hours

The test results show an energy savings of 45.5% when using the S8 servo system compared to a similar-sized fixed displacement system IMM with up to 80% energy savings.

S8 Plastic Machine Sampling Analysis

Plastic Machine Sampling Analysis250T
Fixed Displacement MM		250T
Variable Displacement IMM		250T
Servo System IMM
Test Time222
Oil Temperature554540
Close Mold1.81.81.6
Open Mold1.41.41.4
Injection1.51.21
Hold Pressure0.50.40.2
Charging2.22.21.8
Production Cycle7.476
Total Shot97310281200
Power Consumption per hour (kW/h)12.310.68.8
Annual Power Consumption (kW)66,42057,42047,520

Note: The data above is based on running the machine for 18 hours per day, 25 days per month, and 300 days per year.

Note: *The tonnage shown in the model number is in metric tons, equivalent to approximately 1.1 US tons. Please note when selecting a machine for your application.

Frequently Asked Questions

The LOG S8 650 ton Injection Molding Machine offers high clamping precision, superior energy efficiency, and fast response times. It integrates an advanced servo-hydraulic system for accurate molding control and stable operation, making it ideal for high-volume production.

The cost of the LOG S8 650 ton Injection Molding Machine varies depending on configuration, optional automation, and custom features. For detailed pricing, customers are encouraged to request a personalized quote from the LOG sales team.

This model is commonly used in the automotive, logistics, appliance, and packaging industries for producing large and complex plastic parts with consistent quality.

Yes, it features a servo motor system that reduces energy consumption by up to 70% while maintaining high performance, precision, and repeatability throughout the molding process.

You can purchase the LOG S8 650 ton Injection Molding Machine directly from LOG’s authorized distributors or through the official sales channels in the USA. LOG also provides complete installation, training, and after-sales technical support.