H.R. PLASTIC MACHINERY PVT. LTD.
LDPE Dana Machine
LDPE Dana Machine
LDPE Dana Machine Manufacturer in India | Film Waste Recycling & Pelletizing Lines
LDPE Dana Machine
Introduction
An LDPE Dana Machine converts post-consumer and post-industrial LDPE film waste into uniform pellets (dana) suitable for film, sheet, and moulding applications. A typical line integrates crushing/agglomeration, forced-feed extrusion with venting, melt filtration, and strand or die-face cutting—delivering consistent MFI, colour, and bulk density. When evaluating suppliers in India, compare throughput (kg/hr), energy (kWh/kg), filtration strategy, and after-sales coverage. Explore product options, videos, and layouts on HR Plastic India.
Working Principle and Process Flow of an LDPE Dana Line
LDPE film bales are opened, pre-sorted, size-reduced, and—when needed—hot-washed and dried. An agglomerator densifies flaky film to improve screw feed. A vented extruder with vacuum degassing removes moisture and volatiles. Melt passes through automatic screen changers before pelletizing (strand water bath + cutter or die-face hot cutting). PLC/SCADA records energy, throughput, and quality parameters for traceability. Learn modular configurations on hrplasticindia.com.
Types of LDPE Dana Machines
- Monolayer vented extruder (150–350 kg/hr): For clean industrial film trims and sorted LDPE bags with moderate contamination.
- Two-stage extruder with intensive degassing (300–800 kg/hr): For odour-prone, printed films and supermarket carry-bags with higher ink and moisture.
- Compactor/force-feed extruder lines: Densifies light film to stabilize feed, enabling higher output and steady amps.
- Die-face pelletizer systems: Ideal for flexible recipes and higher throughputs; automatic cutter speed control ensures uniform pellet size.
- Strand pelletizer lines: Robust, easy to maintain; preferred where water quality management is critical.
Key Features & Specifications
- Energy-efficient motors with VFDs; documented kWh/kg for cost benchmarking.
- Vacuum degassing, multi-zone barrel heating, and precise melt temperature control.
- Automatic screen changer (hydraulic/continuous) to handle gels, paper, and fines.
- Nitrided/bi-metallic barrels & wear-resistant screws for extended service life.
- PLC-SCADA with recipe management, alarm logs, and remote diagnostics.
- Optional hot-wash modules, friction washer, and centrifugal dryer for dirty film.
- Die-face or strand pelletizer with auto knife advance for consistent dana size.
Applications of LDPE Dana
- Blown film for carry bags, liners, garbage bags, and agriculture mulch (grade-wise blends for dart impact and haze).
- Extrusion coating, lamination films, and foam backings where controlled MFI improves processing stability.
- Sheet and thermoforming for disposable products and protective packaging.
- Injection moulding of non-critical components, caps, and household items with targeted flexibility.
Benefits of an LDPE Dana Machine
- Lower raw-material cost through consistent recycled granules with stable MFI and colour.
- Higher productivity via force-feed/agglomeration, continuous screen change, and auto pelletizing.
- Improved quality with vacuum venting, fine filtration, and moisture/odour reduction.
- Traceability & compliance support with SCADA data, EPR alignment, and safety guarding.
Manufacturers & Suppliers in India
India hosts specialized LDPE dana machine manufacturers delivering turnkey solutions—layout design, utilities, installation, commissioning, operator training, and spares. When shortlisting, request FAT performance on feed variability, ink load, moisture, and target pellet specs (MFI, density, contamination ppm). Evaluate water-recycling, odour control, and quick-change die options to reduce changeover losses. Pan-India service networks across Ahmedabad, Mumbai, Delhi-NCR, Coimbatore, and Hyderabad are common.
Maintenance and Safety Tips
- Track screw/barrel wear, gearbox oil, and motor amps; log vibration and temperatures daily.
- Maintain wash chemistry; replace process water as per COD/BOD limits; clean filters and tanks.
- Calibrate melt pressure/temperature sensors; verify MFI against batch targets every shift.
- Train operators on lockout-tagout, nip-point safety, and hot-surface handling.
- Stock critical spares—screens, heaters, thermocouples, cutter knives, seals—with traceable SKUs.
FAQs – LDPE Dana Machine
1. What capacity should I choose?
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Match kg/hr to consistent scrap availability, shifts, and downstream demand. For mixed/dirty film, size up degassing and filtration to maintain output and pellet quality.
2. Die-face vs strand pelletizer—what’s better?
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Die-face suits high throughputs and frequent recipe changes; strand is simpler to maintain and tolerant to water variation. Both can deliver uniform dana with proper controls.
3. Can I control odour in recycled LDPE?
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Yes—use hot washing, efficient drying, vacuum venting, and longer L/D or two-stage extruders. Activated-carbon deodorizing and post-conditioning further reduce odour.
4. Which filtration level is recommended?
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Start with 120–200 mesh for clean films; add cascaded screens or back-flush continuous changers for printed/dirty inputs. Verify gels/fines against your film specs.
5. What utilities will I need?
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Three-phase power, water for washing/cooling, and compressed air. Budget for water-recycling/ETP and backup power to stabilize production during grid fluctuations.
Contact Details
Talk to our specialists today for tailored solutions and fast assistance.
Company: Hr Plastic India
Phone: +91 95102-05025
WhatsApp: Chat on WhatsApp
Email: [email protected]
Website: www.hrplasticindia.com
Address: Office Address :- 3, Abhishree Industrial Park, B/h. G.V.M.M., Near Odhav Circle, Ahmedabad-382415.
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