Hydron Accupack

Thin Wall Injection Moulding (TWIM) Machine

Ultimate Packaging Solutions - Available in a range of 100 to 450 Ton

End Applications

  • Overview
  • Value
  • Machine
  • Design Advantages
    & Features

Thin wall Molding is a specialized form of conventional Injection Molding. The Thin Wall Injection Molding process focuses on mass producing plastic parts that are thin and light so that material cost savings can be made and cycle time can be as short as possible. Shorter cycle time means higher productivity and lower costs per part. Caps & Closures and Packaging Industries are few of the targeted application based industries use Thin Wall Moulding.


  • Cheap, safe and clean plastic parts.
  • Reduction into resource consumption and cuts weight, reducing fuel usage and carbon emissions in shipping
  • Allows faster cycle time compared with thicker walled plastic parts, reduces delivery lead time and cost per part.

Thin Wall Injection Moulding (TWIM) Machine

Hydraulic Injection Moulding Machine

Available in a range of 100 to 450 Ton

Specially designed Accupack Series for Thin Wall Moulding Features

  • High Injection Speeds
  • Energy Efficient Hydraulics
  • High Plasticizing Rates
  • Excellent Productivity with Repeatability
  • Excellent Melt Homogeneity
  • Parallel Ejection
  • Fast & Accurate
  • Rugged & Reliable
  • Energy Efficient
  • Versatile & User Friendly

Advanced Clamp Design

Separate Prefill Tank & Special Hydraulics for Fast Clamp Movement & Quick Tonnage Build-up

Generous Mould Space & Platens on Wide Skates

To Accommodate Large & Heavy Hot Runner Moulds

Fully Guided Multi Point Ejector on Fly

  • Smooth & Fast Ejection
  • Ejector Parallel to Clamp Movements with Proportional Speed & Pressure Control
  • SPI Knock Out Bar for Multi Point Ejector
  • 4 Stage Air Ejection

Reinforced Base Construction

For Long Life & Durability

Endura-II - Advanced User Friendly Control

  • Ergonomic Layout
  • High Speed Microprocessor
  • Direct Access Menu Keys
  • Graphical Presentation of Machine Features
  • Self Diagnostic & Fault
  • Finding Capability
  • Parameter Entry in Absolute Value
  • Central Monitoring System
  • Statistical Process Control (SPC)

Precise Linear Guideways

Frictionless Linear Bearing Guide ways improve the Injection Power & Cylinder Alignment

Special Design Injection Cylinders

For High Injection Velocities

Hydraulic Valves Positioned Near Actuators

For Fast Response & Accurate Control

Accumulator Assisted Injection

Provides High Injection Rates

Energy Efficient Power Pack

Electronically Controlled Variable Volume Pump for Low Energy Consumption


  • Direct Hydraulic Clamping System
  • Large Ram for Uniform Distribution of Clamping Force
  • Adjustable Pressure setting of Closing & Opening Stage
  • Proportional Speed Control with 5 Closing & 5 Opening Speed
  • Adjustable 2 Stage Mould Safety Pressure & 1 Stage Speed
  • Position Based Ramping for Accurate Position Switching,Precise Speed & Pressure Control
  • Linear Position Transducer for Accurate Clamp Position Control
  • Sensitive Mould Protection with Try Again Circuit
  • Stage Wise Actual Time Display
  • Insert Moulding Program
  • Actual Tonnage Display on Screen


  • 2 Stage Programmable Ejector Forward Profile with Soft Eject
  • Ejector Speed & Pressure adustable on Screen (Omega 80W to 450W)
  • Linear Transducer for Ejector Position
  • Pulsating Ejector Strokes upto 9 Pulses
  • Intermediate Retract Set Point
  • Ejector Stay Forward & Forward Dwell Timer


  • 6 Stage Injection Velocity & 15 Stage Injection Pressure Profile
  • 5 Stage Screw Speed & 5 Stage Back Pressure Control (Setting) through Screen
  • Digital setting of Extruder RPM & Digital Read out of Actual RPM
  • Wide Choice of Injection Units with A'-A-B Screw / Barrel Combinations
  • Switch Over from Fill to Pack based on Position or Time
  • Linear Position Transducer for Accurate Injection Position Control
  • Auto Heat Startup & Shutdown
  • Injection Decompression Before / After Refilling or Both
  • Semi-Auto Purge, Cold Slug removal & Intrusion Moulding Programs
  • Injection Unit on Linear Guide Ways for Reduced Frictional Losses
  • Aluminum Chequered Plate below Purge Area
  • Sprue Break with Timer

Temperature Control

  • Actual Current Display of Heating Zones
  • Heater Failure & Thermocouple Failure Detection
  • Accurate PID Temperature Control settable on Screen
  • Feed Throat Temperature Indication
  • Auto Heat Startup & Shutdown
  • Heat Standby after set number of Cycles
  • Soak Timer for Cold Start Protection
  • High / Low Temperature Alarm
  • Set & Actual Temperature Data with Bar Graph
  • PID Oil Temperature Control


  • 22 Parameter Monitoring for last 150 cycles with Graphics
  • 10.4" TFT Color Display with Alpha - Numeric Keypad
  • Actual Injection Speed and Pressure Graph Display with Indication of High, Low & Average Value
  • 80 Mould Data Storage
  • Configurable Multilevel Password with Operator's Name
  • Customized Setup Menu
  • High / Low Limit Display for Each Adjustable Parameter
  • I / 0 diagnosis - Analog & Digital
  • Timer Precision in 0.01 Second
  • Change Log Menu: logs last 100 Set Points Changes with Time & Date
  • Statistical Process Control (SPC) with Graphics
  • Individual Keys for Manual Functions with Process Mode
  • Note Pad & Maintenance Scheduling
  • Freely Programmable Smart Outputs
  • Over View Screen with Graphical Display of Machine Functions
  • Soft Keys for Fast Access of select menus
  • 1000 Alarm History with Date & Time Log
  • Printer Interface with USB Port


  • Electronically Controlled Variable Volume Pump
  • Pump & Motor slide out from Base for Ease of Maintenance
  • Ergonomic Hydraulic Layout for Easy Approach
  • Valves Placed near Actuators for Rapid Response
  • Pre-Heating Circuit for Hydraulic Oil
  • Low Oil Level Audible Alarm & Motor Shut Down
  • Continuous Oil Filtration with 10 Micron Filter
  • Audible Alarm for Filter Clogging
  • Hydraulic Valve On / Off Indication

Accupack Special Features

  • Close Loop control of Injection Speed & Pressure
  • Accumulator Assisted Injection
  • Pneumatic Mould Gate Valve
  • 4 Stage Air Ejection
  • Ejector on Fly with Proportional Speed & Pressure Control
  • SPI Knock Out Bar for Multi Point Ejection
  • Eject Retract Verification Limit Switch Interface
  • Special Design Injection Cylinders for High Injection Speeds
  • Special Leveling Pads & Stopper Brackets
  • Enhanced Injection Rates & Plasticizing Rates
  • Auxiliary Power Supply Points
  • Special High Performance Screw

Available Options

  • Hydraulic & Pneumatic Core Pull
  • Feed Throat Temperature Control
  • Hot Runner Interface
  • Feed Throat Temperature Control
  • Jam Bar
  • Hot Runner Interface
  • Robot Interface
  • Gas Assisted Injection Interface
  • Hydraulic Unscrewing Interface
  • System Pressure Display on Screen
  • Nozzle Contact Force by Pressure Switch
  • Cavity Pressure Sensor Interface
  • Pneumatic Power Gate - Front (250T - 450T)
  • Bimetallic Barrel / Screw
  • Safety Interlock between Mould Cooling & Hot Runner Controller
  • Good / Defective Part Signal
  • Part Drop Detect for Single Cavity
  • Part Drop Chute
  • Host Computer Interface