Advanced
SYMALEN™
Pipe Production
ST Plastics manufactures high-quality SYMALEN™ tubes using advanced extrusion technology, precision tooling and carefully engineered polymer materials for industrial and technical applications.
OEM
Custom dimensions, materials and co-extrusion manufacturing available.
Electrical Installation
Inside Floor Structures
SYMALEN™ conduit systems can be routed directly inside insulation layers and below the base concrete slab, creating a cleaner and more flexible electrical installation method for modern buildings.
Minimal wall chasing and significantly reduced manual labor requirements.
Protected by the surrounding concrete structure for long-term durability.
More flexible conduit routing compared to traditional wall installations.
Faster and more cost-effective installation process on site.
What is SYMALEN™?
SYMALEN™ pipes are precision-extruded plastic pipes developed for technical, industrial and infrastructure applications where flexibility, mechanical stability and long service life are essential. STP Extrusion manufactures SYMALEN™ products with advanced process control, ensuring consistent wall thickness, dimensional accuracy and premium surface quality.
Material Engineering
Carefully selected polymer compounds optimized for extrusion stability, durability and long-term performance.
Precision Extrusion
Advanced extrusion lines with continuous dimensional monitoring and stable production parameters.
Custom Manufacturing
Custom diameters, colors, wall thicknesses and technical specifications for OEM and industrial clients.
European Production
Reliable manufacturing standards, fast communication and flexible production capacity.
Standard Product Range
We also manufacture standard SYMALEN™ products in commonly used industry dimensions, ensuring fast availability, reliable quality and efficient delivery times.
Standard Compatibility
SYMALEN™ products are designed with standardized dimensions, allowing compatibility with components, fittings and accessories from other manufacturers and existing systems.
Recyclable Material
SYMALEN™ products are manufactured using recyclable polymer materials, supporting more sustainable production processes and environmentally responsible industrial applications.
Direct From Manufacturer
SYMALEN™ products are manufactured directly by ST Plastics, ensuring reliable communication, flexible production and consistent industrial quality without intermediary suppliers.
Sustainable Manufacturing
ST Plastics supports environmentally responsible manufacturing by offering SYMALEN™ products with recycled material content ranging from 10% up to 100%, depending on technical requirements and customer needs.
SYMALEN™ Standard Dimensions
Standard SYMALEN™ conduit dimensions are available in widely used standard sizes, compatible with common fittings and accessories already available on the market. This allows easy integration into existing systems as well as installation in new projects using standard components. Please note that these products are manufactured on demand and are not kept as stock items. Production requires lead time and is generally intended for larger quantities. Small urgent orders may not always be possible to supply directly from the factory.
| Article No. | Outer Diameter | Wall Thickness | Coil Length | Application |
|---|---|---|---|---|
| SYM-16-W | 16 mm | 2.0 mm | 100–300 m | Winter |
| SYM-20-W | 20 mm | 2.0 mm | 100–300 m | Winter |
| SYM-25-W | 25 mm | 2.0 mm | 100–200 m | Winter |
| SYM-32-W | 32 mm | 2.5 mm | 50 m | Winter |
| SYM-40-W | 40 mm | 2.5 mm | 25 m | Winter |
| SYM-50-H | 50 mm | 3.2 mm | 4–6 m ? Delivered in straight lengths, not in coils. | All Seasons |
| SYM-63-H | 63 mm | 3.5 mm | 4–6 m ? Delivered in straight lengths, not in coils. | All Seasons |
| SYM-16-S | 16 mm | 2.0 mm | 100–300 m | Summer |
| SYM-20-S | 20 mm | 2.0 mm | 100–300 m | Summer |
| SYM-25-S | 25 mm | 2.0 mm | 100–200 m | Summer |
| SYM-32-S | 32 mm | 2.5 mm | 50 m | Summer |
| SYM-40-S | 40 mm | 2.5 mm | 25 m | Summer |
How We Manufacture SYMALEN™ Pipes
Raw Material Preparation
High-quality polymer materials are prepared and optimized for stable extrusion processing.
Extrusion Process
The material is processed through precision extrusion tooling, ensuring accurate dimensions and smooth surface finish.
Cooling & Calibration
Controlled cooling and calibration systems guarantee stable geometry and consistent product quality.
Quality Control
Every production batch is monitored for dimensional accuracy, surface quality and mechanical consistency.
Industrial Extrusion Technology
for Modern Applications
STP Extrusion supports industrial partners with custom SYMALEN™ pipe manufacturing, technical extrusion development and OEM production solutions tailored to demanding applications.
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