H.R. PLASTIC MACHINERY PVT. LTD.

Plastic Recycling Extruder & Pelletizing Line

September 8, 2025

Plastic Recycling Extruder & Pelletizing Line

Recycled Dana Making Machine | Plastic Dana Extruder & Pelletizing Line in India

Recycled Dana Making Machine â€“ Plastic Recycling Extruder & Pelletizing Line

A Recycled Dana Making Machine converts post-consumer and post-industrial plastic scrap into uniform granules (dana) ready for film blowing, injection moulding, sheet and pipe extrusion. A complete line typically includes feeding, shredding/agglomeration, extrusion with filtration and degassing, pelletizing, drying and silo storage. Buyers in India should balance throughput (150â€“1500 kg/hr), polymer types (LDPE/LLDPE/HDPE/PP/PET), power and water needs, and after-sales coverage. Use this page to compare configurations, features and maintenance practices before investing.

Working Principle & Process Flow

Scrap is size-reduced and homogenised, then conveyed to a single or twin-stage extruder. Inside the barrel, controlled heating and shear melt the plastic while vacuum vents remove moisture and volatiles. Melt passes through a screen changer to capture contaminants before being cut into pellets via water-ring, die-face or strand cutting. A closed-loop water system cools and dries the pellets; PLC/SCADA logs kWh/kg, melt pressure and temperature for quality traceability. Explore line options and service support on Hr Plastic India.

Types of Recycled Dana Lines

Single-Stage Vented Extruder (LD/LLD/HD/PP): For relatively clean film/rigid regrind; vacuum venting controls moisture and odour.
Two-Stage Extruder (Agglomerator + Extruder): Handles highly printed, moist or mixed film with improved filtration stability.
Compactor/Force-Feed Film Line: Infeed compactor densifies fluffy film; ideal for shopping bags, liners and stretch film.
PET Pelletizing with IV Control: Hot-wash + twin-vacuum degassing for rPET flakes aimed at fibre/strap applications.
Rigid Regrind Line (HDPE/PP crates, drums): Includes metal separation, label removal and intensive washing modules.

Key Features & Specifications

Output: 150â€“300, 400â€“800, 900â€“1500 kg/hr models with documented kWh/kg benchmarks.
Screw & Barrel: Nitrided/bi-metallic; L/D 28â€“36; specialised mixing for colour and MFI stability.
Filtration: Manual/auto screen changer, 80â€“200 mesh; pressure sensors with alarm logs.
Degassing: Single or twin vacuum vents with condensate traps to reduce gels/odour.
Pelletizing: Water-ring, die-face hot-cut or strand; auto cutter speed sync for uniform size.
Drives & Controls: IE3 motors, VFDs, PLC-HMI with recipe storage, remote diagnostics.
Material Contact: SS304 for wash tanks, piping and critical PET contact parts.
Utilities: Three-phase power, closed-loop water circuit, optional ETP for effluent compliance.

Applications of Recycled Dana

Film converters for garbage bags, liners, mulch films and carry bags with controlled MFI and haze.
Injection moulding of household items, crates, caps, automotive trims and appliance parts.
Pipe and corrugated hose production using rHDPE/rPP blends meeting stiffness and impact targets.
Thermoformed trays and sheets where colour and thickness uniformity are essential.
Textile/fibre and strapping from rPET where tensile strength and IV retention are critical.

Benefits of a Modern Dana Making Machine

Lower raw-material costs by converting in-house scrap and purchased waste into consistent pellets.
Stable quality with multi-stage filtration, recipe control and vacuum degassing for fewer rejections.
Higher uptime via auto screen change, robust compaction feed and standardised spares.
Traceability and compliance enabled by SCADA logs, safety guarding and EPR-friendly reporting.
Modular upgradesâ€”bigger die, extra vent, water-ring to die-faceâ€”without changing plant layout.

Manufacturers & Suppliers in India

India hosts established manufacturers for film, rigid and PET pelletizing lines. When comparing vendors, review their reference installations, achievable kWh/kg, filtration area, vacuum performance and after-sales footprint. Typical deliverables include layout/utility drawings, installation & commissioning, operator training, spare kits and remote support. Locations with strong service networks include Ahmedabad, Mumbai, Delhi-NCR, Coimbatore and Hyderabad. Request FAT protocols and acceptance guarantees aligned to throughput, contamination and pellet uniformity targets.

Maintenance & Safety Tips

Track bearing temperatures, gearbox oil, vacuum levels and melt pressure; log deviations daily.
Clean water tanks, strainers and heat exchangers; maintain TDS and biocide levels in the loop.
Inspect screens and breaker plates; calibrate load cells and temperature sensors per schedule.
Follow LOTO procedures; guard rotating cutters and hot zones; keep eyewash and PPE accessible.
Stock critical spares: heaters, thermocouples, gear couplings, seals, knives and screen packs.

FAQs â€“ Recycled Dana Making Machine

1) What capacity should I choose for mixed LD/LLD film? +

Match line output to steady scrap inflow and downstream demand. For 2-shift operations with mixed film, 400â€“600 kg/hr with a compactor feed and auto screen change offers good stability and payback.

2) Water-ring vs die-face pelletizingâ€”whatâ€™s better? +

Water-ring is versatile and economical for PE/PP; die-face hot-cut provides tighter pellet size and easier automation at higher throughputs. Strand is simpler but needs more space and drying.

3) How do I control odour and gels in recycled pellets? +

Use hot washing, efficient drying, twin vacuum vents, adequate filtration area and stable melt temperatures. Regularly service condensate traps and keep screen packs within spec.

4) Can a single line handle both film and rigid materials? +

Yes, with the right feeding system and screw profile, but expect changeover time and quality variation. Many plants run separate loops or use modular feeders for best results.

5) What documents should be part of the purchase contract? +

Include P&ID, layout, utility list, FAT/commissioning plan, performance guarantees (throughput, kWh/kg, pellet size), warranty terms, spares list and response-time SLAs.