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

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 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.

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.

Details