The Objective
To commission a 450kW (600 HP) heavy-duty extruder drive system capable of continuous operation
The Challenge
Managing sustained mechanical loads, process disturbances, and thermal stress inherent in large-scale extrusion
Earthnetic’s Role
Full engineering scope covering electrical, drive, control, and process validation to ensure repeatable performance across the full operating envelope
The Technical Architecture
- Drive System: Mitsubishi Make FR-A800 VFD equipped with a 1200Amp output Converter Unit
- Control Strategy: Closed-loop speed and torque control using encoder-based feedback for maximum precision
- System Integration: PLC-based control system utilizing fieldbus communication for seamless industrial integration
- Protection Coordination: Comprehensive thermal monitoring and protection for the motor, drive, and gearbox
Key Performance Results
- Dynamic Stability: Achieved stable dynamic response through precise torque and speed loop tuning
- Stress Management: Optimized acceleration and deceleration ramps to minimize mechanical stress on the system
- High-Torque Reliability: Successfully verified system performance under both no-load and full-load conditions to confirm process stability
- Process Regulation: Maintains consistent speed regulation even under varying extrusion pressures
- Long-term Industrial Duty: Delivered a reliable, maintainable solution specifically tuned for high-power, continuous extrusion duty





