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MS4 PeriStep Pump | Maguire Products
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MS4 PeriStep Pump

Maguire's proprietary technology has contributed to being the world's largest supplier of liquid color pumps.

  • For all molding and extrusion applications
  • Accurate peristaltic dosing
  • Easy to set up

Flexible for Any Application

Liquid Color Applications

  • Maguire's MS4 PeriStep pump provides precise metering at low rates to improve the quality of the coloring process.

Self Adjusting Speeds 

  • The pump design and control makes it versatile for all types of molding and extrusion processes.

Wide Range of Dosing Outputs

  • The choice of three tube sizes allows for wide range of dosing outputs- greater flexibility for the user. 

Control Modes

  • Extrusion - Continuous Mode: the MS4 will run the pump continuously at a rate set by the operator.
  • Extrusion - Extrusion Following: the speed will change depending on throughput to maintain the correct percentage color dosed.
  • Molding - Cycle Mode: the MS4 provides accurate dosing, regardless of variations in the process by monitoring the screw back time of the injection molding machine.

Intuitive Operation

Intuitive Design

  • The peristaltic pump provides precise metering at low rates, to improve the quality of the coloring process.
  • Solid compression roller mean they never lose their tube compression tolerance, so dosing consistency and accuracy is maintained.
  • Color changes can be made simply by replacing the feed tube, without the need to stop the process.

Automatic Speed Control 

  • The MS4 control software uses automatic speed control to ensure self-adjusting accuracy.
  • Eliminate need for motor adjustment.
  • Versatile for all types of molding and extrusion applications.
  • Maximized dosing range - intelligent software provides 5 to 1 speed reduction without the need for a gearbox, providing accurate dosing and greater flexibility.

Simple Startup

Startup - 3 Steps

  1. Set shot weight (part gram weight), or extrusion rate (process lb/hr or kg/hr).
  2. Set liquid color percentage.
  3. Set density of the liquid color (lb/gal or kg/ltr).

The MS4 pump automatically calculates the rest, working out the desired weight to volume to dose, reducing any opportunity for error. 

Quick Color Changes

  • Liquid delivery tubes are quick and easy to change when color changes are required.
  • Liquid color tubes can be re-used and only require replacing periodically according to usage and time.
  • Typical tube life is 1 to 6 months.

Rapid Access 

  • The split head is easy to access - the cover detaches by releasing 3 screws. The complete roller set can be removed from there. 

Easy Maintenance 

  • No seals.
  • No check valves.
  • No clearances to allow even the slightest internal leakage.
  • Self priming pump.

Accurate Peristaltic Dosing

1. Accurately Meter Precise Amounts of Liquid

The MS4 peristaltic pump is designed to accurately meter precise amounts of liquid color.

3. Wide Range of Dosing Outputs

Three tube diameters and assemblies are available to provide a wider range of dosing outputs.

5. Easy Disassembly

In the unlikely event of needing to disassemble the pump, the split head is easy to access by releasing 3 screws. The complete roller set can be removed from there.

123456Photo of MS4 PeriStep Pump

2. Suited to All Extrusion & Molding Processes

Accurate dosing into the main flow of material directly for all molding and extrusion processes.

4. Automatic Speed Control

The MS4 control software uses automatic speed control to assure self-adjusting accuracy.

6. Simpler Entry of Variables

Simply enter shot weight, set liquid color percentage, and set density of color. The system automatically calculates the rest.

Tubing Throughput Guide


Extrusion - Continuous Dosing RangeMolding - Cyclical Dosing Range
Imperial



Tube SetMIN lbs/hrMAX lbs/hrMIN lbs/hrMAX lbs/hr
Green - 1/8"0.19.50.13.2
Red - 3/16"8.620.42.96.8
Clear - 1/4"18.432.26.110.7
Metric



Tube SetMIN kg/hrMAX kg/hrMIN kg/hrMAX kg/hr
Green - 3/18 mm0.14.30.11.4
Red - 4.76 mm3.99.31.33.1
Clear - .35 mm8.314.62.84.9

Tube Consumable Codes


Part Number
1/8" Green Tube
Pickup Assemblyat04
Pump Tube with Fittingsat07
Pump Tube Only tur24
3/16" Red
Pick Up Assemblyat05
Pump Tube with Fittingsat08
Pump Tube Onlytur35
1/4" Clear
Pump Assemblyat06
Pump Tube with Fittingsat09
Pump Tube Onlytur46

Machine Interface

The MS4 is capable of running in continuous mode, injection molding (cycle mode) and extrusion following mode.