Comrise high quality Krah Pipe Machine utilizes advanced spiral winding technology to produce structurally optimized HDPE/PP pipe. This system achieves exceptional efficiency through automated continuous winding and welding, reducing material costs by 35% compared to solid-wall extrusion while maintaining the hoop stiffness of SN8-SN16.
Technological Innovations
Co-extruded rib reinforcement provides compressive strength exceeding 10 kN/m²; a servo-controlled mandrel speed of 0.2-1.5 rpm ensures precise tension; and an in-line polymer-steel belt lamination option is available for applications up to PN 16. This integrated process minimizes thermal stresses through graded cooling, ensuring dimensional stability and an ovality tolerance of within ±0.3%.
Quality Assurance
Krah Pipe Machines undergo rigorous validation to ensure zero-defect production. Pre-shipment testing includes 120 hours of continuous production of DN 1,200 mm pipe, followed by destructive testing to verify longitudinal tensile strength and joint peel strength. Third-party certification covers ISO 9001, CE marking, and EN 13476-3 standards. A real-time monitoring system tracks the resin melt flow index and wall thickness during operation and triggers an automatic shutdown if deviations exceed acceptable limits.
Product Features
Dual Extrusion Capability: Simultaneous extrusion of inner and outer layers allows for custom material combinations.
Quick Format Changeover: A hydraulic mandrel adjustment mechanism allows diameter adjustments within 20 minutes without tooling.
Energy Recovery: A regenerative drive recovers 30% of braking energy, reducing net power consumption to 180-450 kW.
Enhanced Safety: Gas detection sensors, emergency stop device, and thermal overload protection.
FAQ
How does the Krah winding system reduce material costs?
By forming hollow structural ribs instead of solid walls, material usage can be reduced by 30-40%, while maintaining the same load-bearing capacity through geometric reinforcement.
Can the Krah Pipe Machine process recycled polymers?
Yes. The optimized screw design can handle up to 50% post-consumer HDPE recycled material while maintaining SN12 stiffness and weld integrity.
After-Sales Guarantee
Onsite Commissioning: Engineer-supervised installation and commissioning.
Warranty: 24 months for winding/welding system; 18 months for electronics.
Global Support: 24/7 remote diagnostics.
