What Is TPU Extruded Tube?

TPU Extruded Tube is a hollow thermoplastic polyurethane profile made via continuous hot extrusion. This manufacturing process creates uniform, continuous tubes that can be cut to any length or coiled for delivery. In practice, our team at Guangdong SPP New Material has refined our extrusion process over 12 years to hold wall thickness tolerance within ±0.02mm for most standard sizes, far tighter than industry averages.

Q: What is the standard manufacturing process for TPU Extruded Tube?

The consistent quality of TPU extruded tube depends on following a controlled 5-step manufacturing process, as outlined below:

1. Pre-dry TPU raw material pellets to remove excess moisture that causes surface bubbles and weak spots
2. Melt TPU pellets in a temperature-controlled extruder barrel held between 160°C and 210°C, adjusted for TPU hardness
3. Force molten TPU through a custom precision circular die to form the hollow tubular shape
4. Cool and size the extruded profile in a calibrated water bath to lock in exact outer and inner dimensions
5. Cut to fixed lengths or coil for packaging, followed by quality inspection before shipping

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TPU Extruded Tube vs Other Tubes: Performance Comparison

TPU extruded tube balances flexibility, strength, and chemical resistance better than most alternative materials for industrial and commercial applications. Below is a performance comparison based on 2026 in-house testing data from SPP's R&D center:

2026 data from the Global Thermoplastic Alliance confirms that TPU extrusion technology has improved dimensional consistency by 28% over the last 5 years, making it suitable for high-precision medical and automotive applications.

Actual testing shows that TPU extruded tube retains 90% of its original tensile strength after 3 years of outdoor exposure, compared to 50% for PVC tube, making it ideal for outdoor use cases. It is also fully recyclable, which aligns with modern sustainability requirements for manufacturing.

Common Applications of TPU Extruded Tube

Q: What industries rely most on TPU extruded tubes?

From our client case data, TPU extruded tubes are used across 5 core industries:

• Medical devices: Catheter shafts, breathing circuit tubing, and drug delivery components
• Automotive: Wire protection sleeves, fuel line hoses, and pneumatic system tubing
• Industrial: Fluid transfer lines, pneumatic tubing, and protective sheathing for cables
• Consumer goods: Water filters, beverage dispensing tubing, and sports equipment components
• Aerospace: Lightweight cable protection that meets flame-retardant safety standards

In practice, we have worked with over 200 clients globally to develop custom TPU extruded tubes for niche applications that require a unique balance of flexibility and strength.

Q: Is TPU extruded tube safe for food and medical applications?

Yes, food-grade and medical-grade TPU extruded tubes meet strict international safety standards including FDA 21 CFR for food contact and ISO 10993 for biocompatibility. We produce medical-grade TPU tubes in our Class 100,000 cleanroom at SPP, ensuring compliance with global regulatory requirements for medical device manufacturers. We do not add harmful plasticizers to our food and medical grade TPU, so they remain safe for long-term use.

How to Select the Right TPU Extruded Tube

Q: What key specifications should I prioritize when ordering?

Experienced buyers at SPP confirm that you should prioritize 4 core specs to match your application:

1. Hardness: TPU hardness ranges from 60 Shore A (very flexible) to 98 Shore A (rigid). Higher hardness is better for structural applications, lower hardness for flexible bending use cases.
2. Dimensional tolerance: Precision applications like medical devices require tighter tolerance (±0.02mm), while general industrial use can accept ±0.1mm tolerance to reduce cost.
3. Material grade: Select the correct grade for your use case: general industrial, food-contact, medical-grade, or flame-retardant.
4. Custom requirements: If you need specific colors, transparency, or additive modifications, confirm these with your manufacturer early in the process.

As an ISO 9001 and ISO 13485 certified manufacturer, we can adjust all of these specs to meet your exact project requirements at SPP New Material.

Q: Is custom extrusion more expensive than buying off-the-shelf TPU tubes?

For large volume orders, custom TPU extrusion is only slightly more expensive than off-the-shelf, and it eliminates the cost of modifying standard tubes to fit your application. In our experience, 60% of industrial clients save 10-15% on total project cost by ordering custom extruded TPU tubes that match their exact needs, rather than adapting ill-fitting off-the-shelf products.

This article was generated by AI and is for reference only.