H.R. PLASTIC MACHINERY PVT. LTD.

Plastic Dana Making Machine

September 2, 2025

Plastic Dana Making Machine

Recycling Machinery Supplier in India | Trusted Equipment for Waste & Material Recovery

Plastic Dana Making Machine â€“ Overview

A Plastic Dana Making Machine converts clean plastic scrap into uniform granules (dana) ready for film blowing, injection moulding, and extrusion. A complete line typically includes conveyor/feeder, shredder or agglomerator, single/twin screw extruder with degassing, screen changer, pelletizer (die-face or strand), and drying/packout. For reliable selection, compare throughput (kg/hr), melt filtration levels, energy (kWh/kg), and after-sales service. Explore solutions, service coverage, and case studies on hrplasticindia.com.

Working Principle & Process Flow

The dana line melts and filters size-reduced plastic. Pre-washed flakes enter the extruder, where controlled heating and compression plasticize material. Vacuum degassing extracts volatiles; automatic screen changers remove contaminants; the melt is cut into pellets via die-face or strand systems and then cooled and dried. Recipe/SCADA control maintains target MFI and colour consistency while logging alarms, energy, and throughput for traceability.

Types of Plastic Dana Making Machines

Monolayer single-screw extruder lines (150â€“350 kg/hr) for LDPE/LLDPE/HDPE post-industrial scrap with basic filtration and optional air-cooled die-face cutting.
High-throughput single-screw lines (500â€“1200 kg/hr) with force feeder, double vacuum, and hydraulic screen changer for mixed PE films and carry-bag waste.
PET bottle-to-pellet systems featuring hot-wash, friction washer, IV retention, and strand pelletizer tailored for textile and packaging applications.
Rigid PP/HDPE recycling lines integrating label removal, metal detection, intensive washer, and water-ring pelletizers for drums, crates, and moulded parts.
Compounding-ready extruders with side feeders and liquid dosing for masterbatch/filler addition, enabling custom properties and colour.

Key Features & Specifications

Energy-efficient motors with VFDs; documented kWh/kg benchmarks for predictable running cost and sustainability reporting.
Automatic/hydraulic screen changers (dual-piston) and multi-stage filtration down to fine microns for cleaner pellets and fewer black specks.
Double-station vacuum degassing, multi-zone barrel heating, and nitrided/bi-metallic screws for stable melt and longer wear life.
PLC-SCADA with recipe management, HMI diagnostics, alarm history, and optional remote monitoring for uptime visibility.
Die-face hot-cut, water-ring, or strand pelletizer options; bolt-on throughput upgrades; pan-India spares and service.

Applications of Plastic Dana in India

Film & sheet extrusion: grocery bags, liners, mulch film, bubble film, and thermoformable sheets using PE/PP dana with controlled MFI and gel count.
Injection moulding: household items, caps/closures, automotive trims, and appliance parts blended with virgin resin for dimensional stability.
Textile & strapping: rPET pellets processed into fibres, filaments, and PET straps with tensile strength and elongation targets.
Pipe & profile: HDPE/PP dana for non-pressure conduits, corrugated pipes, and cable ducts meeting impact/ESCR requirements.

Benefits of a Quality Dana Making Line

Lower raw-material cost via in-house recycling and saleable granules; faster payback from higher uptime and standardized spares.
Consistent pellet quality with stable MFI, colour, and contamination limitsâ€”reducing downstream rejections and machine stoppages.
Productivity gains from automated dosing, quick screen changes, robust conveying, and efficient pellet drying/packout.
Compliance & ESG support through traceability data, safety guarding, EPR alignment, and water/energy optimization.

Manufacturers & Suppliers in India

Indian OEMs supply turnkey dana plants tailored to regional scrap streams. Typical deliverables include plant layout, installation/commissioning, operator training, and documented performance guarantees. Compare extruder metallurgy, filtration strategy, degassing capacity, and pelletizer type to your input mix. Service networks commonly cover Ahmedabad, Mumbai, Delhi-NCR, Coimbatore, and Hyderabad, with options for stainless contact parts, odour control, and water-recycling modules.

Maintenance & Safety Tips

Inspect gearbox oil, heaters, thermocouples, and barrel zone temperatures; record deviations in a daily logbook.
Maintain wash-tank chemistry; clean filters/screens on schedule to prevent pressure spikes and gel formation.
Calibrate load cells and check target MFI; verify vacuum levels and vent cleanliness for stable degassing.
Implement lockout-tagout; shield rotating parts; train operators on hot-surface and nip-point hazards.
Stock critical spares (heaters, seals, screens, knives); store dry, labelled, and traceable for quick turnaround.

FAQs â€“ Plastic Dana Making Machine

1. What capacity should I choose for my dana plant? +

Estimate stable scrap availability, shift plan, and downstream demand. Start with modular capacity (e.g., 250â€“500 kg/hr) and allow bolt-on upgrades as supply scales.

2. Which pelletizer is betterâ€”die-face hot-cut or strand? +

Die-face hot-cut suits films and soft grades with compact footprint; strand offers excellent pellet shape for PET/rigids but needs additional cooling/drying.

3. How do I control odour and moisture in recycled pellets? +

Use hot-wash, proper drying, double vacuum degassing, and vent cleaning. For hygroscopic PET, ensure crystallization and IV control before extrusion.

4. What utilities are required? +

Three-phase power, process water for washing/cooling, and compressed air. Include water-recycling/ETP and backup power for grid fluctuations.

5. How often should screens and knives be replaced? +

Follow OEM hours-based guidance and monitor differential pressure and pellet finish. Keep sharpened/ready knives and pre-cut screens to minimize downtime.