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Sealion Tech logo SealionSEALION TECH
中文 4008-4040-80
Gravimetric control · Ultrasonic gauging · Cloud monitoring

Control every millimetre. Measure every metre.

Sealion builds measurement and control systems for plastic extrusion lines — from weighing, thickness and feeding to blending, inspection and the cloud — holding every metre in spec.

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About Sealion

An industrial-control company for extrusion

Founded in 2008, Guangzhou Sealion Software Technology Co., Ltd. is a national high-tech enterprise integrating R&D, manufacturing and sales of industrial control systems. Our work spans hardware EDA, low-level DSP, ARM and host software, electrical-control design, PLC programming and mechanical design — from core algorithms to full-line solutions.

01

Hardware R&D

EDA circuit design · low-level DSP

02

Software & control

ARM & host software · PLC

03

Electrical control

Control-system design & integration

04

Mechanical

Structural & mechanical design

National High-Tech Enterprise (2016) “Little Giant” Specialised & Innovative Enterprise Sci-Tech “Little Giant” Enterprise Gazelle Enterprise High-Tech Cultivation Programme China Gas Association · S&T Committee (invited)
Products

Systems for the extrusion line

From weighing to the cloud — seven stages of the extrusion process: weigh → measure → feed → blend → dual-line → inspect → digitalise.

01

Gravimetric Control System

Weighing

PID closed-loop gravimetric control at the feed throat, holding weight-per-metre and masterbatch ratio in real time — stabilising product weight and cutting raw-material and masterbatch waste.

02

On-Line Ultrasonic Thickness

Measurement

Non-contact ultrasonic measurement and logging of wall thickness and inner/outer diameter, with immediate out-of-tolerance alerts.

03

Loss-in-Weight Feeder

Feeding

Meters material by continuous loss-in-weight weighing, delivering a steady, accurate mass flow into the extruder with uninterrupted auto-refill.

04

Multi-Component Mixture

Blending

Automatically blends multiple materials in-line to target ratios, with an adaptive algorithm holding ratio accuracy and even mixing.

05

Dual-Line Extrusion Control

Dual-line

For one-die-multiple-output extrusion, coordinating weight and speed across parallel lines to balance throughput and consistency.

06

Surface Defect Inspection

Inspection

Machine-vision real-time detection of pipe surface defects, flagged immediately, with quality data feeding line systems.

07

Cloud Remote Monitoring

Cloud

Aggregates line weight, thickness and inspection data to the cloud for remote real-time monitoring of output and quality across multiple lines.

Industries

Built for how you extrude

Sealion’s systems cover the main plastic-extrusion categories — from piping to film, cable to compounds.

PE water pipe PE gas pipe PPR pipe PVC pipe Plastic piping Corrugated / wrap pipe Sheet & board extrusion Cable sheathing Blown & cast film Masterbatch & compounds
Service & support

Getting the system online is where we start

A measurement & control system isn’t a box you buy and shelve — it has to grow into your machine, die and formulation. Sealion’s service starts the day we arrive at your plant.

S1

On-site installation & commissioning

Our engineers handle mechanical installation, electrical wiring and full system commissioning on site, calibrating to your machine, die and formulation until the line runs steady weight-per-metre and wall thickness.

S2

Operator & maintenance training

Hands-on training for line leaders and equipment staff: daily operation, what each parameter means, and how to read and clear common alarms — so the system lands in capable hands.

S3

Spare parts & consumables

Long-term supply of key spares — load cells, ultrasonic probes, control modules — so even older systems stay serviceable and a discontinued part never stops your line.

S4

Remote diagnostics & updates

Lines connected to cloud monitoring let us pull running data remotely, pinpoint faults, and push parameter and firmware updates — most issues without waiting for an engineer to arrive.

Contact

Talk to an engineer

Tell us your line, materials and the parameter you need to control, and we’ll recommend a configuration.

Hotline4008-4040-80
Phone+86-20-22109833
Email2428582102@qq.com
Head office9F, Building U4, Digital Valley, Liandong U Valley, No.8 Lianpu St., Huangpu District, Guangzhou, China
BranchesBeijing · Shanghai