MAS TA Vent Extruder – Melt Degassing For Higher Pellet Quality
Use a vent extruder when residual moisture, air or volatiles remain after upstream extrusion and filtration. Confirm the root cause and compare vacuum-system or process changes first.
The MAS TA Vent Extruder is a melt-fed single-screw extruder that degasses the melt after the twin-screw extruder and melt filter, then builds the pressure your pelletizer needs. Available as TA 100, TA 140 and TA 180.
When Is A Melt-Fed Vent Extruder The Right Step?
A vent extruder increases melt surface under controlled vacuum so residual air, moisture and suitable volatile components can leave the polymer melt before pelletising. The MAS TA also builds the pressure required by the downstream pelletiser.
Use it after homogeneous melting and suitable melt filtration when representative data show that residual degassing duty or pelletiser pressure load limits accepted output. It does not remove solid contamination and does not automatically replace material drying, filtration, vacuum-system correction or upstream process optimisation.
Evaluate: polymer and additives; melt temperature/viscosity; moisture and volatile identity/load; current vacuum and condensate/exhaust system; filtration; pressure profile; pelletiser duty; accepted throughput; pellet quality; energy; integration and maintenance
Best Suited For:
At A Glance
Three sizes, one principle
- TA 100 – 100 mm screw diameter
- TA 140 – 140 mm screw diameter
- TA 180 – 180 mm screw diameter
- 3 venting openings with vacuum extraction
- Retrofittable into existing lines
How TA Benefits Will Be Measured
Degassing
State incoming and residual moisture/volatile method, vacuum level, melt temperature, residence time and accepted pellet result.
Throughput
Report stable accepted kg/h at the same material, quality target and availability—not short peak rate.
Pressure Build-Up
Define upstream and downstream pressure, pelletiser requirement and how duty is redistributed.
Material Suitability
Validate polymer, formulation, viscosity, thermal sensitivity and volatile behaviour; a material list is not a guarantee.
Integration
Include vacuum generation, condensate/exhaust handling, controls, utilities, foundations, access and pelletising interfaces.
Maintenance
Publish inspection/cleaning intervals, wear criteria, vacuum service, labour, downtime and spares.
Where TA Venting Delivers Value – And Where It Does Not
TA may add value when filtered, homogeneous melt still contains a verified residual load of air, moisture or suitable volatiles, or when pelletiser pressure build-up restricts the upstream extrusion and filtration stages.
Before selecting TA, investigate feedstock moisture control, dryer performance, upstream venting, vacuum leaks/capacity, condensate and exhaust handling, melt temperature and residence time, filtration pressure, pelletiser condition and operating settings.
Choose the simplest option that reaches the same accepted throughput and pellet specification. TA is not the answer when solid contamination, incompatible material, inadequate drying, a faulty vacuum system or another upstream bottleneck is the primary cause.
How The MAS TA Vent Extruder Works
Filtered Melt Enters
Receive melt from the upstream extruder/filter.
➔
Distribution Block
Divide flow and create surface area.
➔
Vacuum Venting
Remove relevant air, moisture and volatiles.
➔
Pressure Build-Up
Provide stable pressure for pelletising.
➔
Pellet-Ready Melt
Validate quality at the highest sustainable output.
Key Advantages
Pellet Quality
Better pellets thanks to a large degassing surface and gentle melt handling.
Continuous Production
Seamless feeding, venting and processing inside the line without waiting times.
High Throughput
Targeted, high-precision degassing lifts the output of the entire extrusion line.
Optimal Downstream
Targeted pressure build-up for granulating and further processing steps.
Flexible Use
Suitable for many industries, with optional trials in the MAS Technical Center.
Customizable
Venting and pressure build-up zones can be adapted to your specification.
Vent Extruder TA In Three Versions: TA 100, TA 140, TA 180
The model number states the diameter of the extrusion screw in millimetres. Venting performance, heating capacity and drive power scale accordingly with the material input. Modifications to the venting and pressure build-up sections are available on request.
| Model | Screw diameter | Venting Openings | Throughput Range | Typical Application |
|---|---|---|---|---|
| TA 100 | 100 mm | 3 | on request | Small and medium recycling lines |
| TA 140 | 140 mm | 3 | on request | Medium to large recycling and compounding lines |
| TA 180 | 180 mm | 3 | on request | High-output lines, e.g. combined with MAS 110 |
Part Of The MAS Upgrade Line
Because of their high performance and efficiency gains, vent extruders are frequently integrated into large extrusion lines and form part of the MAS Upgrade Line, which is used to raise regranulate quality in existing plants. Combined with the MAS conical twin-screw extruder, CDF melt filtration and the MAS 110, the TA completes a line built for demanding recyclate specifications.
What Our Customers Say
The conical shape is very advantageous when melting the material, where with little shear and very short dwell time, the material is damaged as little as possible.
Arjan Van Kempen, CEO – Cumapol (NL)
The Twin Screw Extruder from MAS is an engineering feat in the field of plastics recycling. Coupled with the superb performance of the Continuous Disc Filtration easily makes it the best recycling system in the world.
Wilson Pandhika, Director – PANERA Group
Related Technologies
Twin-Screw Extruder
Conical twin-screw extrusion for efficient degassing, melt homogenisation, energy savings and superior output quality.
CDF Melt Filtration
Continuous disc filtration removes solid contaminants from the melt directly upstream of the vent extruder.
MAS 110
The new MAS extruder generation for higher throughput and productivity in large recycling and compounding lines.
Upgrade Line
Retrofit concept that raises regranulate quality in existing extrusion plants, with the TA vent extruder as a core module.
Laboratory Extruders
MAS 24 and MAS 55 laboratory extruders for material-conserving trials before the line concept is fixed.
Engineering Support Throughout Your Project
Send the current line, material, moisture/volatile data, defects, throughput, vacuum and pelletising requirements. MAS can compare process optimisation, vacuum upgrades and TA venting.
