PP Dana Making Machine
Introduction
A PP Dana Making Machine converts polypropylene scrap—raffia/woven sack waste, non-woven, film trims, injection regrind—into uniform granules (dana) for tapes, sheets, films, and moulded parts. A complete line integrates crushing/agglomeration, vented extrusion, melt filtration, and water-ring or die-face pelletizing to achieve consistent MFI, colour, and pellet geometry. When shortlisting partners in India, compare throughput (kg/hr), energy (kWh/kg), filtration strategy, degassing, and after-sales coverage. Explore line options and layouts on HR Plastic India.
Working Principle and Process Flow of a PP Dana Line
Sorted PP scrap is size-reduced and, if required, washed and dried. A cutter–compactor or force-feed stabilizes bulk density for steady screw feed. In the extruder, vacuum venting removes volatiles and moisture; the melt passes through hydraulic/continuous screen changers before pelletization via water-ring or die-face hot cutting. PLC/SCADA logs throughput, energy, alarms, and recipes for traceability and repeatability. Learn modular configurations on hrplasticindia.com.
Types of PP Dana Making Machines
- Monolayer vented extruder (150–350 kg/hr): For clean raffia/offcuts and sorted injection/film regrind.
- Two-stage extruder with twin venting (300–1000 kg/hr): For printed/ink-laden or odour-prone PP with higher contamination.
- Cutter–compactor/force-feed lines: Densifies light film/non-woven to stabilize amps and raise output.
- Water-ring pelletizer systems: Compact layout, fast start/stop, uniform spherical pellets.
- Strand pelletizer lines: Simple to maintain, tolerant to water-quality variation, robust knives.
Key Features & Specifications
- Energy-efficient motors with VFDs; documented kWh/kg for cost benchmarking.
- Vacuum degassing, multi-zone barrel heating, precise melt temperature control.
- Automatic screen changer (hydraulic/back-flush/continuous) for stable pressure and fewer gels.
- Bi-metallic barrels, nitrided/EN41B screws; optional gear pump for pressure stability.
- PLC–SCADA with recipe control, alarm logs, preventive maintenance prompts, remote diagnostics.
- Additive/masterbatch dosing for odour control, UV/antioxidant stabilization, colour consistency.
- Water-ring/die-face or strand pelletizer with auto knife advance for consistent dana size.
Applications of PP Dana
- Woven-sack/raffia tape lines (denier stability, tensile/elongation targets).
- Non-woven (spunbond) back-to-granule loops with strict filtration and odour control.
- Sheet & thermoforming for trays, PP stationery, and automotive liners.
- Injection moulding of crates, caps/closures, and household components.
- Fluted boards, monofilament ropes, and extrusion coating substrates.
Benefits of a PP Dana Making Machine
- Lower raw-material cost with consistent recycled PP granules and stable MFI.
- Higher productivity via force-feed/agglomeration, continuous screen change, and automated pelletizing.
- Improved quality through vacuum venting, fine filtration, and recipe repeatability.
- Compliance & traceability support (EPR alignment, SCADA data, safety guarding).
Manufacturers & Suppliers in India
Specialized Indian manufacturers supply turnkey PP dana machines—layout design, utilities, installation, commissioning, operator training, and spares. Request FAT data under varied feed conditions (raffia/non-woven/film), targeted pellet specs (MFI, ash, contamination ppm), and odour benchmarks. Consider water-recycling, deodorizing, gear pump integration, and quick-change dies to cut transition losses. Service coverage across Ahmedabad, Mumbai, Delhi-NCR, Coimbatore, and Hyderabad is common.
Maintenance and Safety Tips
- Monitor screw/barrel wear, gearbox oil, and motor amps; log temperatures and vibration daily.
- Keep knives sharp and pelletizer clearances calibrated; check water-ring/strand bath parameters.
- Calibrate melt pressure/temperature sensors; verify MFI and colour every shift against targets.
- Practice lockout–tagout; shield nip points and hot zones; test emergency stops routinely.
- Maintain critical spares—screens, heaters, thermocouples, knives, seals—with traceable SKUs.
FAQs – PP Dana Making Machine
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