High-Performance Polyurethane Tube 6x4mm for Demanding Industrial Applications
In the realm of pneumatic systems, hydraulic lines, and fluid transfer, the choice of tubing is critical to operational efficiency and longevity. Our polyurethane tube 6x4mm represents a premium solution engineered for superior performance under pressure. Designed with the industrial professional in mind, this tubing combines exceptional flexibility with outstanding abrasion resistance, making it an ideal choice for a vast array of demanding environments. This product page provides a comprehensive overview of its specifications, benefits, and ideal use cases to help you make an informed procurement decision.
Product Overview
Our polyurethane tube 6x4mm is a high-grade, thermoplastic elastomer tubing specifically formulated for industrial use. With an outer diameter of 6mm and an inner diameter of 4mm, it offers an optimal balance between flow capacity and physical robustness. The material's inherent properties—including excellent memory, resistance to kinking, and compatibility with a wide range of media—set it apart from standard PVC or rubber hoses. It is the go-to component for systems requiring reliable, durable, and maintenance-free tubing solutions that can withstand continuous mechanical stress and exposure to oils, greases, and many chemicals.
Key Features
- Exceptional Abrasion & Tear Resistance: Far outperforms standard PVC and rubber, significantly extending service life in high-wear applications.
- High Flexibility & Kink Resistance: Remains supple at low temperatures and does not kink easily, ensuring consistent, uninterrupted flow.
- Excellent Pressure Rating: Capable of handling high working pressures, making it suitable for pneumatic tools and hydraulic control lines.
- Good Chemical & Hydrolytic Stability: Resists degradation from oils, greases, fuels, and many solvents, as well as moisture.
- Transparent Design: Allows for easy visual monitoring of fluid flow and media condition, aiding in maintenance and troubleshooting.
- Superior Memory & Recoil: Returns to its original shape after bending or stretching, reducing hose fatigue and failure points.
Technical Specifications
| Parameter | Specification |
|---|---|
| Material | Premium Polyurethane (PU/PUR) |
| Standard Size | 6mm OD x 4mm ID (Outer Diameter x Inner Diameter) |
| Available Colors | Transparent, Blue, Black |
| Working Pressure | Up to 25 Bar (≈ 362 PSI) |
| Temperature Range | -40°C to +90°C (-40°F to +194°F) |
| Standard Coil Length | 25m, 50m, 100m (Custom lengths available) |
| Certifications | RoHS Compliant, REACH SVHC Free |
Application Scenarios
The versatility of the polyurethane tube 6x4mm makes it a critical component across multiple sectors. Its primary function is to provide a reliable conduit for air, liquids, and gases in dynamic settings.
- Factory Automation & Pneumatics: Ideal for control air lines, pneumatic cylinders, valves, and actuators on assembly lines and packaging machinery.
- Machine Tools & CNC Equipment: Used for lubrication lines, coolant supply, and pneumatic control circuits where resistance to oil and abrasion is paramount.
- Robotics & Material Handling: Perfect for end-effector tooling, suction grippers, and moving parts due to its flexibility and durability in constant motion.
- Medical & Analytical Equipment: The transparent, chemically resistant variant is suitable for non-critical fluid paths in diagnostic and laboratory devices.
- General Industrial Maintenance: An excellent all-purpose replacement hose for air tools, spray guns, and general plant utility air lines.
Advantages Over Alternative Materials
Choosing our polyurethane tubing delivers tangible operational and economic benefits compared to traditional materials.
- vs. PVC Tubing: Polyurethane offers 5-10x greater abrasion resistance, superior flexibility in cold environments, and better resistance to oils and chemicals. It has a higher pressure rating and is less prone to permanent deformation.
- vs. Rubber Hose: Lighter in weight, more transparent for flow monitoring, and exhibits much better resistance to kinking. Polyurethane also has a smoother inner bore for improved flow characteristics.
- vs. Nylon Tubing: More flexible and less brittle, especially at lower temperatures. Polyurethane is easier to install and route in tight spaces without requiring complex fittings to avoid breakage.
This translates to reduced downtime from hose failures, lower maintenance costs, and improved system reliability.
Why Choose Our Polyurethane Tube 6x4mm?
As a specialist manufacturer and global supplier, we provide more than just a product; we offer a reliable partnership for your supply chain.
- Consistent Quality & Performance: We use rigorously tested raw materials and maintain strict production controls to ensure every meter of our polyurethane tube 6x4mm meets high-performance benchmarks.
- Global Supply Capability: With a robust logistics network, we reliably serve OEMs, distributors, and MRO buyers worldwide with flexible order quantities.
- Technical Expertise & Support: Our team provides expert guidance on product selection, compatibility, and application optimization to ensure you get the right solution.
- Competitive Pricing & Value: We achieve competitive pricing through efficient manufacturing without compromising on material quality, delivering exceptional value.
- Customization Options: Available in various colors, coil lengths, and with custom printing (e.g., size, company logo) to meet specific project or branding needs.
Frequently Asked Questions (FAQ)
What is the primary benefit of using a 6x4mm polyurethane tube?
The primary benefit is its outstanding combination of durability and flexibility. The 6mm OD provides good physical protection, while the 4mm ID is a common standard for many pneumatic fittings and offers efficient flow. The polyurethane material itself ensures long service life even in abrasive, oily, or dynamic environments.
Is this tubing suitable for use with hydraulic oil?
Yes, our polyurethane tube 6x4mm exhibits excellent resistance to mineral-based hydraulic oils and greases, making it suitable for low to medium-pressure hydraulic control lines and lubrication systems. Always verify compatibility with specific media if using synthetic or specialty fluids.
Can I use standard push-in fittings with this tube?
Absolutely. The 6x4mm dimension is a standard metric size widely compatible with push-in (also known as instant) fittings from major pneumatic component brands. Its excellent memory ensures a secure, leak-free seal in these fittings.
What is the minimum bend radius?
While highly flexible, we recommend a minimum bend radius of approximately 20mm for continuous operation to avoid excessive stress and ensure optimal flow. Its kink resistance allows for tight, temporary bends without permanent damage.
Do you offer samples for testing?
Yes, we encourage potential B2B clients to evaluate our product. We offer sample coils of our polyurethane tube 6x4mm so you can verify its performance in your specific application before placing a bulk order. Please contact our sales team to request a sample.


