H.R. PLASTIC MACHINERY PVT. LTD.

Waste Plastic Dana Making Plant

October 10, 2025

Waste Plastic Dana Making Plant

Waste Plastic Dana Making Plant | Plastic Dana Machine Manufacturer in India

Waste Plastic Dana Making Plant

Our Waste Plastic Dana Making Plant converts post-consumer and industrial plastic scrap into clean, uniform granules (dana) suitable for film, injection, and blow-moulding. The line integrates crushing, washing, drying, extrusion, filtration, and pelletizing to deliver consistent MFI and colour stability with low energy per kg. Choose the right capacity, automation level, and filtration based on feedstock mix and quality targets for reliable, profitable recycling.

Working Principle and Process Flow

Typical dana plants follow a modular flow: sorting â†’ size reduction â†’ washing & separation â†’ drying â†’ agglomeration/compacting (for films) â†’ vented extrusion with melt filtration â†’ pelletizing â†’ cooling â†’ drying & screening â†’ storage. Forced-feed extruders stabilize throughput; vacuum degassing removes moisture/volatiles; automatic screen changers capture fines and gels. For guidance, explore solutions on www.hrplasticindia.com.

Configurations Available

Single-stage extruder pelletizing line for clean, pre-washed rigid HDPE/PP with stable MFI requirements.
Motherâ€“Baby (two-stage) vented extrusion for high-ink, high-moisture films and mixed post-consumer feedstock.
Film recycling with agglomerator/compactor, force-feeder, and water-ring die-face cutter for flexible LDPE/LLDPE.
Strand pelletizing lines with water bath and air knife for rigid regrind and reinforced blends.
PET bottle flakes to chips with hot caustic wash, friction washer, IV care, and crystallizer options.

Key Features and Specifications

Energy-efficient motors with VFDs; documented kWh/kg for accurate operating cost benchmarking.
Automatic screen changer (hydraulic/continuous), multi-zone heating, and vacuum degassing for cleaner melt.
SS304 contact parts in wash line; closed-loop water recycling and effluent management compatibility.
PLC-SCADA with recipe control, production logs, alarms, and remote diagnostics for predictive maintenance.
Die-face water-ring/underwater cutting or strand pelletizer; vibro-sieve and cyclone conveying to silo/bagging.

Applications of Plastic Dana

Film & packaging: LDPE/LLDPE blown film, liners, courier bags, stretch & shrink applications with defined MFI and gel control.
Injection moulding: HDPE/PP crates, caps & closures, household items, auto trims with impact and dimensional stability.
Blow moulding: containers, jerry cans, drums using rHDPE blends to achieve ESCR and top-load performance.
Textiles & straps: rPET chips for fiber/filament and PP straps with tensile, elongation, and colour consistency.

Benefits of a Dana Making Plant

Lower material costs by converting scrap into marketable granules; faster payback with high uptime and standardized spares.
Consistent pellet quality via staged washing, multi-stage filtration, and degassingâ€”reduces rejection and improves downstream productivity.
Operational efficiency with automated dosing, recipe control, quick screen changes, and stable conveying.
Compliance & sustainability: traceability data for EPR reporting, safer operations with guarding and interlocks.

Manufacturers & Supply Scope

Leading Indian manufacturers provide turnkey dana plants covering layout design, fabrication, installation, commissioning, and operator training. Scope typically includes shredder/crusher, label/metal removal, hot & cold wash, friction washer, centrifuge dryer, agglomerator, vented extruder with screen changer, pelletizer, cooling, silo, and electricals. Optional upgrades: stainless wet sections, odour control, water-treatment, auto-dosing, and SCADA analytics. Compare experience with your scrap profile, proven kWh/kg, and pellet quality benchmarks before finalizing.

Maintenance and Safety Tips

Track vibration, temperature, and amperage of extruder, gearbox, and motors; lubricate per OEM schedule.
Maintain wash chemistry and TDS; clean tanks, screens, and nozzles to avoid contamination carryover.
Calibrate MFI, load cells, and temperature sensors; verify melt pressure and vent vacuum routinely.
Train for lockout-tagout, hot surfaces, rotating parts, and safe handling of cleaning agents.
Stock critical spares: heaters, thermocouples, seals, blades, screens; store dry with labeled part numbers.

FAQs â€“ Waste Plastic Dana Making Plant

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

Align capacity with consistent scrap availability, shift planning, and customer demand. Consider polymer mix, moisture/ink levels, and required MFI. Modular designs allow phased expansion without compromising wash or filtration.

2. Which pelletizing system is betterâ€”water ring or strand? +

Water-ring die-face suits films and soft polymers with stable cut and minimal strand handling. Strand pelletizing is robust for rigid regrind and blends. Selection depends on polymer type, throughput, and target pellet size.

3. How do we control odour and moisture in the output pellets? +

Use hot wash with proper chemistry, efficient drying, vented zones with strong vacuum, and adequate residence time. Maintain screen integrity and avoid over-shearing that can degrade melt and worsen odour.

4. Can one line handle mixed municipal plastics? +

Yesâ€”with pre-sorting, density separation, label/metal removal, and tailored filtration. For highly variable inputs, two-stage (motherâ€“baby) extrusion improves stability and pellet quality.

5. What documentation should be part of the purchase? +

Demand P&ID and layout, utility list, kWh/kg benchmarks, safety conformity, FAT, commissioning protocol, preventive maintenance schedule, response times, and performance guarantees tied to throughput and pellet specs.