Eurotech D35 Single-Layer Blown Film Extrusion Line
| Brand | Eurotech |
|---|---|
| Origin | Italy |
| Model | D35 |
| Screw Diameter | 35 mm |
| Die Head Diameter Range | 80–180 mm |
| Output Capacity | 45 kg/h |
| Film Width Range | 600–1200 mm |
| Cooling System | Dual-airflow cooling ring with flow regulation |
| Drive Control | Inverter-controlled drive system |
| Winder | 600 mm or 1200 mm width winding unit |
| HMI Interface | 10-inch industrial touchscreen |
| Compatible Resins | LDPE, HDPE, LLDPE, EVA, biopolymers |
| Optional Add-ons | Gravimetric blender, corona treater, inline micro-printer |
Overview
The Eurotech D35 Single-Layer Blown Film Extrusion Line is an engineered solution for laboratory-scale development, pilot production, and small-batch commercial manufacturing of tubular polymeric films. Designed and assembled in Italy, this line operates on the fundamental principles of polymer melt extrusion, bubble stabilization, and controlled radial cooling—core processes defined by ISO 1133 (melt flow rate), ASTM D2673 (blown film terminology), and ISO 12097 (film thickness measurement standards). The system integrates a precision single-screw extruder (XTR series) with a 35 mm screw diameter, optimized for consistent melt homogenization and low-shear processing of thermoplastic resins including LDPE, HDPE, LLDPE, EVA, and certified biopolymers such as PLA and PHA. Its modular architecture supports rapid reconfiguration for material qualification, process parameter mapping (e.g., blow-up ratio, frost line height, draw-down ratio), and formulation screening under reproducible thermal and rheological conditions.
Key Features
- High-precision XTR single-screw extruder with hardened alloy steel barrel and screw, engineered for thermal stability and wear resistance across extended operation cycles
- Rotary die head with interchangeable mandrels (80–180 mm nominal diameters), enabling flexible bubble geometry control and uniform melt distribution
- Dual-airflow cooling ring with independent volumetric flow regulation for symmetric bubble quenching and reduced gauge variation (±3% typical)
- Inverter-driven main drive system offering 0.1–100 rpm speed resolution and torque monitoring for real-time process feedback
- 10-inch industrial-grade touchscreen HMI with preloaded recipe management, alarm logging, and multi-language support (EN/DE/FR/ES)
- Winding station configurable for either 600 mm or 1200 mm film width, equipped with dancer-roll tension control and automatic edge guiding
- Modular integration points for optional auxiliary units: gravimetric feeder for masterbatch dosing, atmospheric corona treater (5–15 kW), and compact thermal-transfer micro-printer for batch coding
Sample Compatibility & Compliance
The D35 line accommodates standard industry resin grades compliant with ISO 1183 (density), ISO 1133 (MFR), and ASTM D1248 (polyethylene specification). It supports both virgin and recycled polymer streams meeting EN 13432 (compostability) or ASTM D6400 (biodegradability) criteria when configured with compatible screw geometry and temperature zoning. All electrical components conform to CE marking requirements (2014/30/EU EMC Directive and 2014/35/EU Low Voltage Directive). Mechanical safety complies with EN ISO 12100 and EN 62061 for functional safety of control systems. Data acquisition and parameter logging meet GLP-aligned traceability requirements, with timestamped event logs exportable via USB or Ethernet.
Software & Data Management
The embedded control firmware provides real-time visualization of extrusion parameters—including barrel zone temperatures (±0.5°C accuracy), motor current/torque, melt pressure (0–50 bar range), and winder line speed (±0.1 m/min). Process data is stored locally in non-volatile memory with 30-day retention and exportable in CSV format. Optional Ethernet/IP or Modbus TCP connectivity enables integration into centralized MES or SCADA environments. Audit trail functionality supports FDA 21 CFR Part 11 compliance when deployed with user authentication and electronic signature modules—commonly specified for regulated packaging R&D labs.
Applications
- R&D validation of new resin formulations and additive packages for barrier, sealant, or antistatic performance
- Pilot-scale production of medical packaging films requiring ISO 11607-1 qualification
- Process window development for sustainable packaging—e.g., optimizing draw ratio and cooling rate for PLA-based films
- Quality assurance testing of incoming polymer lots via comparative blown film trials
- Educational use in polymer engineering programs for hands-on instruction in extrusion physics and film morphology analysis
- Contract manufacturing of specialty films for niche markets (agricultural mulch, compostable pouches, laminating substrates)
FAQ
What is the minimum film thickness achievable with the D35 line?
Typical minimum gauge is 12 µm for LDPE under optimized cooling and haul-off conditions; actual values depend on resin MFI, blow-up ratio, and line speed.
Can the system be upgraded to produce coextruded multilayer films?
No—the D35 is strictly configured for single-layer extrusion. For multilayer capability, Eurotech offers the D35-MC variant with dual extruders and feedblock die.
Is technical support available outside the EU?
Yes—Eurotech provides remote diagnostics, English-language documentation, and authorized service partners in North America, APAC, and EMEA regions.
Does the touchscreen interface support custom script-based automation?
The base HMI does not support user scripting; however, full PLC-level access (Siemens S7-1200 platform) is available under NDA for OEM integration projects.
What utilities are required for installation?
Three-phase 400 V ±10%, 50/60 Hz power supply; compressed air (6 bar, oil-free); ambient cooling water (15–25°C, 2 m³/h max); floor loading capacity ≥500 kg/m².
