High regranulate quality at low operating costs. The BMF series offers the lowest melt loss of all filtration technologies (less than 2.5%).
Filter belt roll: 20-25 kg, length up to 50 m
Filtration fineness: 50 μm to 950 μm
Simultaneous use of up to 3 filter belts possible
Upgrade your recycling line with the BMF Series Automatic Belt Melt Filter, designed for high-quality regranulate production with minimal operating costs.
Fully Automatic Operation: Delivers high-quality pellets with reduced manual intervention
Lowest Melt Loss: Industry-leading efficiency with melt loss rates of less than 0.5% (or <15% depending on specific filtration technology comparison)
Versatile Specifications:
Filtration Fineness: Ranges from 50 μm to 950 μm
Continuous Operation: Filter belt rolls (20-25 kg) up to 50m in length allow for long production runs
Mesh Flexibility: Simultaneous use of filter belts with different mesh sizes is possible
|
Model |
Filter Area (cm²) |
Max Output (kg/h) |
Application Focus |
|
BMF-0570-07 |
570 |
900 |
High Contamination LDPE/HDPE |
|
BMF-0570-09 |
570 |
1200 |
High Throughput Operations |
(Note: Output values depend on material type and contamination levels.)
Q: What materials can the BMF melt filter process? A: The BMF series is versatile and ideal for post-consumer LDPE, LLDPE, HDPE, and PP, particularly for materials with high contamination like paper labels or wood.
Q: How often does the filter belt need to be changed? A: The system uses a continuous filter belt roll (up to 50m length). The belt automatically advances based on pressure build-up, lasting weeks depending on contamination levels.
Polyretec offers a seamless 4-stage ecosystem: Collection → Sorting → Washing → Extrusion 7.
The dynamic Preconditioning Unit (PCU) prepares plastics ideally for the extruder, setting the course for high end-product quality
7-in-1 Functionality: Integrates Cutting, Homogenising, Heating, Drying, Compacting, Buffering, and Dosing in a single stage
Gentle Melting & Low Shear: Preserves material properties by ensuring impurities are not broken up, making them easier to filter
Odour & Discolouration Control: Removes cellulose (paper/wood), rubber, and silicone early in the process to prevent outgassing and unpleasant smells
Triple Degassing System: Achieves a real full-vacuum state. Degassing occurs first in the PCU, followed by two stages in the extruder.
Air Flush Technology: Highly effective at removing volatile odours prior to extrusion
Target high-end applications (e.g., automotive, living spaces) with the ReFresher module
Chemical-Free Process: Uses a thermal-physical cleaning process without additives.
Deep Cleansing: Reduces odours caused by low-volatile, high-molecular substances.
Energy Saving: Utilizes the intrinsic heat energy of the pellets (requires min. 60°C) from the extrusion process.
Challenge: High moisture, paper labels, and large film sections18181818.
Solution:
● Double Filtration: Ensures maximum purity for film-to-film recycling
● High Degassing Volume: Up to 30% higher degassing capacity to prevent hollow pellets
● Outcome: Produces high-quality recycled pellets suitable for new shrink film production
Challenge: Heavy contamination (sand, soil), thin material (25-100 μm), and high moisture .
Solution:
● Compact Zone Design: Features a mild, short transport screw to reduce wear from abrasive mineral materials
● PCR Content: Enables the production of agricultural stretch films with up to 40% PCR content
Challenge: Mixed contaminants from household packaging (e.g., shampoo bottles)25252525.
Solution:
● Cosmetic Grade Output: Capable of producing pellets for "rinse-off" packaging applications
● Universal Screw Design: Processes varying bulk densities (30 to 800 g/l) without changing the screw
● Extended Residence Time: 1-hour PCU residence time ensures homogeneous heating and decontamination
Challenge: Residual moisture up to 12% and multi-layer film impurities (PET/PA) .
Solution:
● Double Disc Technology: Efficiently handles high moisture levels
● Ultra-Fine Filtration: Filters down to 63 μm, removing NBR and latex particles
Polyretec provides comprehensive turnkey washing systems for various plastic types.
Applications: Packing film, PP jumbo bags, woven bags, fishnets
Key Tech: Friction Washer (720rpm) removes sticky materials and heavy sediments
Output: Final moisture content between 3-5%
Capacity Models: PW500 (500kg/h) to PTW2000 (2000kg/h)
Applications: HDPE bottles, PP injection products, home-consumer plastics
Food Grade Compliant: Meets FDA standards for food packaging contact
Process: Includes crushing, friction washing, and hot washing (>90°C) to remove adhesives
Goal: Food-grade or filament-grade PET flakes
Process: Optical Sorting → Hot Washing → Friction Washing → Rinsing
Capacity: Ranges from 1000 kg/h to 6000 kg/h
Sustainability: Water-free cleaning uses friction, grinding, and collision forces
Efficiency: 93-95% cleaning efficiency
Capacity: Available in 1000 kg/h and 2000 kg/h models
