Continuous screen changer for thermoplastic materials

Eliminate downtime caused by blockages with a continuous screen changer designed for efficient filtration and backflushing in thermoplastic processes, ensuring uninterrupted production flow and enhanced material consistency.

Filters and Cleans Thermoplastics Continuously

The Screen Changer ESK B from ECON is a continuous double-piston screen changer with a backflush system, specifically engineered for seamless thermoplastic filtration and contamination removal. What sets this equipment apart is its ability to maintain continuous production by automatically redirecting the melt flow, allowing one screen to be cleaned while the other stays active. This results in operational reliability and minimizes thermal variations with its optimized melt flow design.

Ideal for applications in the plastics, packaging, and automotive industries, this system efficiently processes end products such as polyethylene films, polypropylene containers, and PVC pipes, with a throughput capacity of up to 3,750 kg/hr. Its fully automatic backflushing capability ensures significant reductions in stoppage time and labor costs. The design includes approximately 75% effective screen area, minimizing pressure build-up and avoiding dead spots, which allows for rapid material and color changes.

Constructed to meet the rigorous demands of polymer processing facilities, the ESK B can be integrated into existing extrusion lines with ease. The use of durable materials ensures long-term performance and maintenance-free operation, making it an essential asset for thermoplastics processors aiming for optimal efficiency.

Benefits

  • Ensures continuous operation with automatic screen cleaning, reducing production interruptions.
  • Decreases maintenance frequency and costs through durable construction and efficient backflushing.
  • Enhances product quality by minimizing contaminants and thermal variations.
  • Facilitates quick material and color changes due to optimized melt flow and minimal pressure build-up.
  • Supports high processing capacities, handling up to 3,750 kg/hr for increased productivity.

General


Applications
Thermoplastic materials
End products
Pet bottles,Acrylic sheets,Polypropylene containers,Abs automotive parts,Polystyrene packaging,Polycarbonate lenses,Nylon fibers,Thermoplastic elastomer seals,Pvc pipes,Polyethylene films
Steps before
Material Handling,Material Feeding,Pre-melting,Initial Filtration
Steps after
Pelletizing,Cooling,Drying,Material Extrusion
Input ingredients
thermoplastic materials
Output ingredients
processed melt,contaminant-free melt
Market info

Technical Specifications


Throughput Capacity
Up to 3,750 kg/hr
Screen Area Effectiveness
Approx. 75%
Pressure Build-Up
Low
Melt Flow Design
Optimal,short melt residence time
Material Processability
All thermoplastic materials

Operating Characteristics


Working Mechanism
Continuous double-piston with backflush system
Automation Level
Fully automatic screen cleaning
Batch vs. Continuous Operation
Continuous
Changeover Time
Fast changes for material or color
Energy Efficiency
Low pressure build-up
Melt Flow Optimization
Optimal design for short residence time
Operational Reliability
High durability
Thermal Stability
Prevents thermal variations

Material Compatibility


Abrasion resistance
Yes
Biological compatibility
Yes
Cleanability
Yes
Corrosive resistance (e.g. acids)
Yes
Density/particle size
0.5–2.5 g/cm³ / 50–1000 µm

Physical Characteristics


Footprint
Compact
Screen Area
Approx. 75% effective
Design
Optimal melt flow path

Custom Options


Screen Changer Type
Continuous double-piston with backflush
Production Throughput
Up to 3,750 kg/hr