Pipe Extrusion Division

Pipe extrusion: measurable and controllable from the feed throat to the warehouse door

A pipe is set the moment it leaves the die. By the time an out-of-tolerance wall shows up, it is measured in tonnes of material. This division puts the measurement inside the line itself — weight controlled at the feed, wall measured after the die, quality checked before it is stored.

Control at the source The gravimetric system sits at the extruder feed throat and closes the loop on screw and haul-off speed, holding 0.3% under standard conditions and saving 2%–5% of material.

Measure at the die Ultrasonic gauging measures moving pipe without contact in the cooling tank — wall, diameter, eccentricity and ovality visible immediately, not after somebody cuts a sample.

Check before storage Inbound quality and online inspection verify wall, diameter, length and ovality on every pipe, so the bad ones stop at the warehouse door.

The nine systems in this division

Gravimetric Control System

Sealion Gravimetric Control System: PID closed-loop control of weight-per-metre at the extruder feed throat, saving 2%–5% of raw material. Parameters and MIXSCAN model tables included.

Gravimetric Masterbatch Control System

Sealion Gravimetric Masterbatch Control System: weight-per-metre control and masterbatch dosing combined, closed-loop, ratio accuracy ±1%. Model tables included.

Gravimetric Masterbatch Weighting Control System

Sealion Gravimetric Masterbatch Weighting Control System: masterbatch metered by loss-in-weight to 4‰ accuracy, components controlled independently.

High-Precision Multi-Component Dosing System

Sealion high-precision multi-component dosing: loss-in-weight metering with an independent servo drive and independent weighing on every channel, closed-loop algorithms trimming feed speed live, formulas stored for one-click changeover and fully traceable.

Ultrasonic Thickness Online (Small Tube)

Sealion Ultrasonic Thickness Online (Small Tube), SL-Ultrascan series: original auto-adjusting structure, probe self-centring, wall 0.18–10mm, diameter 2–50mm.

Cloud-Based Extrusion Monitoring System

Sealion Cloud-Based Extrusion Monitoring System: connects ERP and line execution, real-time data to the cloud — equipment, orders, curves, alarms, finished goods — for remote multi-line monitoring.

Ultrasonic Thickness Online (Big Pipe)

Sealion Ultrasonic Thickness Online (Big Pipe): non-contact measurement of wall thickness, eccentricity, ovality and OD, 0.01mm resolution, Φ63–1200 pipe range.

Pipe Inbound Quality & Safety System

Sealion Pipe Inbound Quality & Safety System: end-of-line weight, thickness, diameter, ovality and length inspection, pass-only flipping, data to MES.