Grace high-efficiency single-screw extruder (40 L/D)

The 40 L/D SG single-screw extruder is engineered for large-diameter and thick-wall pipe applications. Its screw design and process control support melt homogeneity, pressure stability, cooling efficiency and controlled wall thickness during extrusion.

A high-efficiency single-screw extruder for pipe applications requiring stable output, controlled melt quality and energy awareness.

Process control

The control arrangement brings key operating values together to support practical start-up, repeatable operation and day-to-day process monitoring. Final controls and interfaces are defined for the selected line configuration.

Project-specific verification

Extruder selection and final line performance are verified against the resin grade, die, pipe specification, cooling capacity and downstream process. Published reference values are not an unconditional contractual guarantee.

Configuring the HDPE / PP extrusion platform as part of the full line

The 40 L/D single-screw extruder is defined with the resin, pipe structure, die head, cooling route and downstream duty. It provides the melt-preparation platform; final line performance depends on every connected production stage.

• Resin and pipe structure: PE or PP grade, pipe application, wall schedule and single- or multi-layer structure guide the screw, drive and control concept. These material inputs are reviewed before the platform is fixed.
• Melt preparation and die interface: screw geometry, thermal control and the die-head interface are aligned for the selected resin and pipe range. Co-extrusion and stripe arrangements are reviewed with the complete product definition.
• Cooling and downstream balance: the extruder is balanced with the available cooling length, water conditions, haul-off capacity and cutting cycle. A machine value alone is never used to define final stable line output.
• Line integration: material handling, process control, measurement and auxiliary interfaces are specified as part of the complete line. The final control and service scope follows the selected project configuration.

Information for a technical proposal

• Resin grade and intended application
• Complete OD x SDR or wall-thickness schedule
• Layer structure, stripe and co-extrusion requirements
• Target operating rate by key pipe size
• Cooling-water and factory-layout conditions
• Control, measurement and service requirements

Reference outputs are preliminary extruder-selection values, not guaranteed complete-line output. Final performance depends on resin grade, melt-flow characteristics, die and pipe specification, cooling capacity, line speed and downstream limits, and must be confirmed through project-level technical review and FAT criteria.