Equipment, Services and Expertise for the Plastics Production Industry
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CPT Control Retrofits for Injection Molding Machines

control retrofit injection mold


Available for all makes and models of plastics processing machines

CPT control retrofits have improved the performance and prolonged the life of machines from the following OEMs: Milacron – Van Dorn – HPM – Husky – Nissei – Toshiba – Mitsubishi – Engle – Italtech – Demagto – Asian Plastics

Now is the time to retrofit older machine controls!

If you have one of the following machines you should consider a control retrofit from CPT:

  • Husky machines

  • Milacron machines with VSX, 486 and Xtreme controls

  • Van Dorn HT and HP machines

CPT control retrofits have improved the performance and prolonged the life of structural foam machines from the following OEMs: Wilmington and Unaloy

Compression machines and extruders


Engineering Expertise and Experience with Special Applications

Integrated safety circuit for massive multi-functional Fanuc robot 

Added multiple valve gate capability with control retrofit

Control retrofit for multiple low pressure injection units with electric drives

Retrofit included interface to second injection unit and swing-arm pendant for HMI

Custom barrel and injection manifold temperature control screen

Retrofits can include hydraulic component upgrades


Why Consider a Control Retrofit from CPT:

  • Our control retrofit package provides molders with a very cost competitive solution to improved machine and processing control
  • Greater productivity, flexibility, networking capability
  • Improved uptime reliability and maintenance ease
  • CPT’s service and installation provides an all-inclusive approach to providing you the best control retrofit package at a great value

See our Control Retrofits brochure
Control Retrofit Financial Advantages



Control Retrofit Includes Full Machine Calibration

Machine control calibration to include:

Required machine adjustments to calibrate back to original OEM specifications for the following machine parameters.

  • Machine Hydraulic Pressures
  • Injection Velocities
  • Clamp, injection and ejector positions (included if position control devices are replaced with new)
  • Barrel and oil temperatures
  • Injection, cool and cycle timers

Control Features

  • Position-based clamp control
  • Closed loop control for injection velocity and pressures
  • Five injection velocity segments (configurable)
  • Five pack and five hold pressure segments (configurable)
  • Three extruder and back pressure segments (configurable)
  • Core pull and core set software (A1-A5, B1-B5)
  • Core pull and core set timers
  • Three stage air eject software (software and signals)
  • PID temperature control all zones and nozzle with auto tuning
  • Cold start screw protection with on/off override and soak timer
  • Auto heat start-up and shut-down
  • Dual torque/speed range for dual range extruder motor
  • Quick access to screens
  • Operator change log
  • Multiple levels of password protection
  • Trending/plotting of temperatures, pressures and axis positions
  • Recipe storage for mold data locally (40) or to USB device
  • Alarm log and alarm history of last 200 alarms
  • Screen capture and save to USB device (any screen)
  • Process monitor and alarms w/bad part output
  • Machine diagnostics of analog and digital I/O
  • English/Metric selection
  • Sprue break timer and sequence
  • Robot interface software (SPI 3.0/Europmap 12)
  • Adjustable mold protect pressure
  • Supplemental machine control electrical diagrams
  • Adjustable clamp third plate pick-up set points
  • Ejector retract override set point
  • Insert molding
  • Ejector Pulse retract w/ multiple pulses
  • Eject stop back in single
  • Eject retract override
  • Additional machine options may be quoted at additional cost.
  • Digital readout of extruder RPM

Case Studies

CPT Adds
New Brain to
Good Bones
on Large Press

CPT Provides Controls, Expertise for Unique Large-Scale Molding Project

CPT Team Updates One of the Largest Presses in North America

Process Controls Help Buckhorn’s Existing Machinery Run Like Today’s Technology