APPLICATIONS · PLASTICS · RUBBER · RESIN

Vacuum across material feeding, forming and resin processes.

Different duties—from granule conveying to extruder degassing and composite infusion—require different pressure ranges, gas handling and protection equipment.

Material feedingExtrusion degassingComposite processes
Vacuum-assisted plastics extrusion process
POLYMER PROCESS VACUUMMaterial + vapour + dutyTechnology selected by process
APPLICATION RANGE

Use the vacuum technology that fits each process step.

Dry granule transfer, hot extruder vapour, thermoforming leakage and resin degassing impose different requirements. The vacuum source and protective equipment must be selected from the actual process load.

01

Granule and powder feeding

Closed pneumatic transfer can feed machines and storage points using controlled airflow.

02

Extruder degassing

Vacuum removes air, moisture and volatile components from the melt through a protected extraction line.

03

Forming and calibration

Vacuum supports thermoforming, profile calibration and holding where leakage and cycle time are known.

04

Resin and composite processing

Degassing and infusion systems help control entrained air before and during mould filling.

Composite vacuum resin infusion process
RESIN INFUSION

Control leakage, resin flow and vacuum level together.

Mould sealing, laminate geometry, resin viscosity, line arrangement and resin trap protection define the operating requirement.

SELECTING THE RIGHT SYSTEM

Start with the exact process step.

The same plant may require more than one vacuum technology.

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01

Process duty

Define conveying, extrusion, forming, calibration, mixing, degassing or infusion as separate operating points.

02

Gas, moisture and contaminants

Temperature, vapour, monomer, dust and resin carry-over determine protection and pump suitability.

03

Pressure, flow and cycle

Specify operating vacuum, leakage or gas load, evacuation time and continuous or batch duty.

04

Separation and filtration

Filters, condensers, knock-out vessels and resin traps protect the vacuum source.

RELATED SOLUTION FAMILIES

Technology options for different polymer-process duties.

The related families cover high-flow conveying, deeper clean vacuum, wet gas loads and controlled mixing.

SIDE-CHANNEL BLOWERS

ZRV Series

Capacity
80–1310 m³/h
Pressure / duty
Up to -460 mbar
System role
Material feeding and high-flow duties
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OIL-SEALED VACUUM PUMPS

ASV Series

Capacity
20–120 m³/h
Pressure / duty
0.5 mbar
System role
Protected forming and degassing
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LIQUID RING VACUUM PUMPS

LRV · ZVT · ZVK

Capacity
25–3700 m³/h
Pressure / duty
33–100 mbar(a)
System role
Wet and vapour-laden extraction
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VACUUM MIXING CHAMBERS

VMO Series

Capacity
10–80 L chambers
Pressure / duty
Process-specific
System role
Resin mixing and degassing
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Published family ranges are indicative. Final selection must be checked at the actual operating pressure, gas or material load, temperature, duty cycle and installation conditions.

APPLICATION ENGINEERING

The vacuum source is one part of the complete system.

Reliable performance depends on the pump or blower, protection equipment, line arrangement, controls and the real process operating point.

01

Operating point

Capacity and pressure are checked together at the actual inlet conditions and duty cycle.

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02

Protection equipment

Filters, separators, condensers, receivers and valves are selected around moisture, particles, liquid carry-over and process risk.

Review the Process Load
03

System integration

Pipework, controls, isolation, accessibility and redundancy are included in the final system architecture.

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LET'S REVIEW YOUR APPLICATION

Share the polymer process and operating load.

Provide the process step, material, gas or vapour load, temperature, target pressure, capacity, cycle and required separation equipment.

Request a Technical Review