Pluto/j Series

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  • Pluto/j Series

Tianjian Pluto/j Series
Hybrid Injection Molding Machine (86Ton ~ 1000Ton)

Main Hydraulic Index PL/j Servo Index
Response time of pressure upward 50ms The precision of screw speed 0.2rpm
Response time of flow rise 40ms The stability of speed 0.1%
Range of pressure fluctuation ±0.9 bar The repeatability precision of injection 0.1%

Standard Equipment List

Injection Unit

  • Start point control(time and position)- injection switches to hold pressure
  • Injection position monitoring function, controlled by injection position transducer
  • Injection safety cover
  • Nozzle safety cover
  • Barrel heater insulating cover
  • Plasticizing cold start prevention function
  • Nozzle centering alignment device
  • Suck back function
  • High torque motor for screw plasticization
  • Screw plasticizing and back pressure control function
  • PID barrel temperature control
  • Automatic purging function
  • Anti-slip aluminum cover
  • Screw speed detection device
  • Injection 6 stages, hold pressure 5 stages, charge 3 stages, with pressure and speed adjustable
  • Slide type hopper support ( upto 470 ton )
  • Product chute ( upto 280 ton )

Hydraulic pressure control unit

  • Proportional pressure & flow control
  • Oil temperature check and oil temperature limit alarm
  • By-pass oil filter
  • Alarm function of filter core clogged
  • Hydraulic safety
  • Core (Mov.platen 1 set; reserve 1 set)
  • Oil cooler
  • Protection chain for hydraulic hose

Clamping Unit

  • High performance fixed pump + quick response proportional pressure & flow control
  • Mold open/close 5 phases, with pressure and speed adjustable
  • Mold platen in box structure, under reasonable strain analysis
  • Electrical and hydraulic safety interlock device
  • Mold height adjustment conducted by gear driven by hydraulic motor
  • Automatic toggle greasing system by central lubrication device
  • Muti modes of ejector, with pressure and speed individually setted
  • Automatic mold height adjustment
  • Mold cooling water interface
  • Low pressure and mold protection function
  • Position transducer for mold open/close and ejection
  • Mechanical coupling for easier ejector connection
  • Intensified wear-resistant supporting tracks for movable platen
  • Differential and fast mold clamping device
  • T-slot mold platen

Electrical Control Unit

  • Electrical interface for robot
  • Parameter protection lock
  • PID barrel heating
  • System oil temperature warning device, oil temperature deviation display
  • Multiple sets of internal mold memory
  • High precision displacement sensor system
  • Auto malfunction analysis, display and report accident causes
  • 3 sets of auxiliary power outlets for auxiliary equipment
  • Emergency stop safeguard device
  • Built-in printer interface
  • Real-time inspection and display operation
  • Electric motor safety protection device
  • System hareware I/O testing function
  • Product Drop confirmation device ( uptp 280ton)
  • Electrical hardware interlock protection function
  • Swiveling Control Box
  • Adjustable Anti-vibration Pad
  • Accessary Box


  • Bi-metal cyilinder & screw
  • Hopper throat temperature control device
  • PET cyilnder & screw
  • PC cylinder & screw
  • PMMA chromium plating screw
  • 1 stage up charging motor
  • Daylight extension (20~40mm)
  • Shut off nozzle
  • Reduction min mold height ( 50mm )
  • Clamp open fixed stopper
  • Double hydraulic core
  • Core 3 set ( over 250ton )
  • Air core valve (FESTO)
  • Ejector or core during mold opening
  • Mold cooling water distributor
  • Air conditioner in control box
  • UPS
  • Ejecting confirmation switch interface
  • Nozzle temperature limit switch control
  • Pressure gauge switch
  • Low pressure mold protection relief valve
  • Core pressure reduction valve
  • Air valve
  • Air filter
  • Transparent cooling water distributor
  • Hydraulic oil heating device

Servo energy saving schematic diagram
the servo energy saving plastic moulding machinery configure rotary encoder and pressure sensor, so it will feedback the flow and pressure in time. it adjusts the flow and pressure by changing the servo synchronous motor's rotate speed and the torsion to make sure higher repeatability precision, maximum energy saving and the production efficiency.
Tianjian Pluto/j Series  (86Ton ~ 1000Ton)
  • test product : disk
  • plastic material : PS
  • product weight : 100g
  • product wall thickness : 2.6mm
  • number of mold cavity : 1
  • test condition : power test device record 3 series IMM‘s value during full auto producing when the oil temperature

comparison of IMM 160T IMM (fixed pump) 160T IMM (variable pump) 160T IMM (servo system)
moulding cycle time s 20 20 20
test time h 3 3 3
cycle count mold 540 540 540
power consumption/hour kW/h 12.6 8.1 6.1
power consumption/year kW/h 83160 53460 40260
power consumption/Kg kW.h/Kg 0.7 0.45 0.34
effect of servo energy saving % IMM with fixed-pump 51.6
IMM with variable pump 24.7
calculation conditions : 20hour/day, 330day/year
power cost : 0.8RMB/Kwh

Servo energy saving schematic diagram
The servo energy saving plastic molding machinery configure rotary encoder
and pressure sensor, so it will feedback the flow and pressure in time.
it adjusts the flow and pressure by changing the servo synchronous motor's
rotate speed and the torsion to make sure higher repeatability precision,
maximum energy saving and the production efficiency.
Clamping Unit
  • 1High opening forces

    The platens designed by Finite Element Analysis software and five-point inward moving toggle system ensure high rigidity and precision for mold clamping and also reduce the stress and distortion.

  • 2Long-term steady working

    The rear platen that is free-floating for stress alignment can reduce the probability of tie bar breakage and ensure that clamping unit works normally at high speed and pressure.

  • 3Easy handling

    Automatic mold adjustment function. When changing to a different mold, the clamping force can adjust automatically through data setting.

Injection Unit
  • 4Durable hydraulic block

    Major hydraulic components and seals are sourced from word famous manufacturers ensuring high stability. As standard decompression and back pressure is provided for consistence and repeatable melt control.

Tianjian Pluto/j Series  (86Ton ~ 1000Ton)
Hydraulic System
  • 5Powerful and stable

    Fixed pump system provides stable output, quick response, and powerful strength.

  • 6Fairly powerful

    Hydraulic gear pump provides steady output and quick response, as a result, the accuracy, reliability, and repeatability for the machine can be realized.

Tianjian Pluto/j Series  (86Ton ~ 1000Ton)
  • 7Screw Rotating monitoring

    The customers can observe the screw speed from the monitor directly and adjust the technical parameter if necessary.

  • 8Up to your choice

    A wide variety of screw designs for different polymer processing requirements are available.

  • 9Additional core puller

    The additional core pullers are available for the mold equipped with additional core puller device.

Tianjian Pluto/j Series  (86Ton ~ 1000Ton)

Control System
  • The controller equipped with two CPU is used specially by injection molding machine.
  • A High-speed 80MHZ CPU with 0.5ms scan cycle time is used for faster system response which
    improves the machine’s performance and precision.
  • A Screen saving function extends the LCD display life.
  • Ultra bright LED’s are provided for Input and Output point inspection, in this way, it is easier for
    operator and repairman to handle.
  • A data hardware lock is provided to prevent unauthorized persons from modifying the molding
  • Closed Loop PID provides the barrel with accurate and consistent temperature control ranging
    from 0℃ to 450℃.
  • A totally enclosed electrical control cabinet provides.
  • Dust & waterproof control cabinets provide a total enclosure to all electrical control components
    which are arranged in an orderly way.

Ultra bright screen technology to provide cycle and control system information for the user and
     machine maintenance
     (Note: The machine types with different clamping force may be equipped with different controllers).
Main display
Tianjian Pluto/j Series

Specification Product
PL860j,  PL1200j,  PL1600j,  PL2000j,  PL2500j, PL3000j view
PL3600j,  PL4500j,  PL5300j,  PL6500j, PL7800j,  PL10000j view
PL860j ~ PL10000j Platen dimensions(Nozzle dimensions) view
PL860j ~ PL10000j Platen dimensions(Moving platen) view
PL860j ~ PL10000j Platen dimensions(Mounting hole dimension - Takeout Robot / Sprue ) view