Grace PVC pipe extrusion line

Complete PVC pipe extrusion systems for reliable output, dimensional control and practical day-to-day operation.

Principal line equipment

1. Parallel twin-screw extruder

The 36 L/D parallel twin-screw extruder is configured for stable PVC plasticization, controlled melt temperature and practical output across a wide range of pipe specifications.

2. PLC control system

A unified operator interface brings together speed, temperature and pressure data, supporting recipe management, day-to-day monitoring and coordinated line operation.

3. Die head

The die-head flow path and temperature-control arrangement are designed to support even wall-thickness distribution, a stable melt profile and dependable pipe quality.

4. Vacuum tank

Variable-frequency vacuum control, efficient filtration and adjustable spray cooling are configured to support stable calibration, reliable water management and practical energy use.

5. Haul-off

The haul-off unit provides controlled traction and synchronized caterpillar movement to protect pipe geometry as the product moves through the downstream process.

6. Dust-free cutter

The dust-free cutter combines secure clamping with controlled cutting and chip collection to support clean pipe ends, efficient recycling of chips and safe operation.

Engineering a PVC pipe line from the complete pipe schedule

A reliable PVC pipe line is selected from the full production task - not from pipe diameter alone. The material formulation, complete OD x wall-thickness schedule, number of outlets, target operating rate, factory layout and downstream finishing requirements are reviewed together before the equipment is defined.

• Material and product definition: PVC resin grade, stabiliser system, filler level, intended application, applicable standard and the complete pipe schedule establish the starting point. The schedule should include every outside diameter with its wall thickness or SDR / PN requirement, not only the largest pipe.
• Extrusion and tooling package: the 36 L/D parallel twin-screw platform, die head and calibration tooling are matched to the selected PVC formulation and pipe schedule. A line may use one, two or multiple outlets when the product range and production objective support that arrangement.
• Cooling and downstream balance: vacuum sizing, spray cooling, haul-off and cutting are engineered as one connected section. Tank quantity and effective cooling length, water conditions, available factory length, traction arrangement and cutting cycle must support the selected pipe and operating rate together.
• Automation and finishing options: line controls, dosing and handling functions, measurement requirements, marking, pipe-end finishing and collection equipment are selected around the project and reviewed for their effect on product handling, changeover work and the final line layout.

Information for a technical proposal

• PVC formulation and material information, including the stabiliser and filler system where applicable
• Complete OD x wall-thickness / SDR / PN schedule and intended pipe application
• Target production rate for each key specification and required number of outlets
• Pipe length, cutting, chamfering, socketing, marking, handling and packing requirements
• Factory effective length, water temperature and flow, electrical supply, compressed air and site conditions
• Required automation, measurement, control brand, certification and service expectations

The published configuration data is a representative planning guide, not a universal promise. Final output, energy use, cooling length, tooling, quality criteria and contractual performance are confirmed only through project-specific technical review and FAT criteria.

Typical outputs are configuration-dependent, not unconditional contractual guarantees. The PVC 1200 platform, including the GMMJ1900 die, remains a custom-engineered rather than fully standard configuration.