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MSF Starve Feeder

Starve feeder which accurately regulates volume of materials to the process throat.

  • Mount directly over feed throat
  • Compact design
  • Simple installation

Precise Material Control

Improved Material Control 

  • Allows operator to regulate feed materials to a process.
  • If front portion of screw can’t extrude the plastic as rapidly as the rear portion, the excess flow will be forced out the vent.
  • Careful regulation of the volume of material which is metered to the rear feed section of the screw.

Improved Material Processing

  • Starved screw has a continuous air passage directly behind the spiraling screw flight to allow vapors to easily escape back through the feed throat.
  • Starve feeder itself provides a vent to atmosphere so vapors don’t need to travel up through the cold resin in hopper.
  • Prevents vapor and steam from re-condensing in the feed zone and hopper and carried into the screw over and over again.

No Calibration 

  • Simply select the percent of full flow desired, e.g. 70% or 80%.
  • Microprocessor self-calibrates by first matching the extrusion rate and automatically cutting back to the selected reduced starve rate of feed.
  • No calibration of system required.

Intelligent Design

Reduced drive motor torque 

  • MSF starve feeder prevents the drive motor from overloading by metering resin at a rate that does not exceed the horsepower or torque of the drive motor.

Shorter Screw Return Times

  • MSF starve feeder eliminates residence time and consequently prevents screw slippage.
  • This results in shorter screw return times.

Manual Bypass

  • A hinged flow plate allows conventional flood feed for manually bypassing the “starve” system.

5 Year Warranty

  • Backed with 5 Year Warranty.

MSF Starve Feeder at a Glance

1. Improved Material Control

Allows operator to regulate feed materials to a process.

3. No Calibration Needed

Simply select the percentage of full flow desired and the microprocessor self-calibrates by first matching the extrusion rate and automatically cutting back to the selected reduced starve rate of feed.

1234Photo of MSF Starve Feeder

2. Improved Material Processing

Starved screw has a continuous air passage directly behind the spiraling screw flight to allow vapors to easily escape back through the feed throat.

4. Screw Slippage Eliminated

MSF Starve Feeder eliminates residence time and consequently prevents screw slippage. This results in shorter screw return times.

MSF Feeder Options




OptionDescription
Spacer Frames
Raise feeders above the feed throat of the process machine. To improve access & material change over times.
Swivel Plates
Allow for easy re-positioning of auger feeder & full rotation of the feeder to any position required.
Hopper Extensions
Range of hopper extension sizes for different models to increase storage capacity.
Powder Feeder Augers
1 1/2" and 1" augers for feeding free flowing additive powders.
Clear-Vu Surge Hoppers
To easily view material status before material is entering the material line.
Spare Controllers
Spare automatic speed controller. Also available with Extrusion Following for extrusion applications. 
Augers with Couplings
Augers with 1/2", 1" and 2" coupling.
Auger Tubes
1/2", 1", and 2" auger tubes are available.
Low Level Alarm
Reduce monitoring requirements by floor personnel with the LLA alarm system, used to signal HGH or LDW material-supply conditions.