Dia 16-350 mm Polyurethane Natural PU Tube
4 month ago
Product details
Polyurethane Rubber Hollow Rod PU Pipe Tubes
PU Hollow Rods (Polyurethane Hollow Rods) are hollow rod-shaped plastic profiles made from polyurethane (PU) elastomer via reaction injection molding (RIM) or extrusion. Polyurethane is a polymer elastomer formed by the polymerization of polyols and isocyanates. Its molecular chain contains both soft segments (flexible long chains, such as polyethers or polyesters) and hard segments (rigid segments, such as those formed by the reaction of isocyanates and chain extenders). This unique "soft-hard segment block structure" gives PU materials the excellent properties of combining the high elasticity of rubber with the strength of plastic.
PU Hollow By controlling the internal hollow structure (such as round, square, or irregular shaped cavities), Rod significantly reduces the material density and weight while retaining the core properties of polyurethane (high elasticity, wear resistance, and impact resistance). This achieves a balance of "lightweight + functionality" and is widely used in mechanical cushioning, sealing and shock absorption, sports equipment, medical assistive devices, and other fields. It is a lightweight upgrade alternative to traditional solid polyurethane rods or rubber parts.
PU Rod Tube
Core Advantages of the PU Hollow Rod
Maintaining Functionality While Optimizing Performance
Uncompromised Elasticity and Cushioning: The hollow structure maintains the soft-hard molecular chain network of PU, maintaining high resilience and impact absorption capabilities.
Cost Savings: Reduced material usage directly reduces production costs (especially suitable for high-volume applications).
Heat Dissipation and Sound Isolation: The cavity acts as an air layer, slightly improving thermal insulation (reducing heat conduction) or sound insulation (suitable for equipment protective covers).
Design Flexibility
Customizable Cavity Shape: Customizable cavities can be designed into circular, square, honeycomb, and other shapes (adjustable through molds) to meet different mechanical distribution requirements.
Controllable Wall Thickness: The outer wall thickness is typically 2-20mm (to ensure structural strength) and can be adjusted based on load (e.g., thicker walls in high-load areas).
PU Plastic Rod Hollow Rod
Typical Applications
Machinery and Industrial Equipment
Shock Absorbers: Motor/Pump Mounts, Machine Tool Anti-vibration Pads (absorb vibration, reduce noise, and extend equipment life);
Seals and Bushings: Rotating Shaft Seals, Valve Stem Stuffing Boxes (oil-resistant and wear-resistant, replacing traditional rubber seals);
Lightweight Supports: Guide Rods for Automation Equipment, Robot Joint Buffers (reducing weight while maintaining elasticity).
Sports and Leisure Equipment
Sports Protective Gear Cores: Cushioning layers for boxing gloves, knee pads, and ski boots (highly elastic and conforming to the body, reducing impact damage);
Fitness Equipment Accessories: Yoga Mat Base Support, Elastic Elements for Tensioners (durable and providing comfortable rebound);
Ball Bladders: Basketball/Soccer Ball Tubes (highly elastic and wear-resistant, replacing traditional rubber or latex).
Medical and Rehabilitation Devices
Prosthetic Bushings: Cushioning layers connecting residual limbs to prosthetic limbs (soft, form-fitting, shock-absorbing, and non-slip, enhancing wearing comfort);
Rehabilitation Braces: Elastic support components for wrist/ankle braces (providing moderate pressure without impeding blood circulation);
Medical Equipment Shock Absorption: Protective covers for ultrasound probes and wheelchair tires (lightweight and wear-resistant).
Daily Use and Consumer Electronics
Home Appliance Shock Absorption Components: Gimbals for washing machine spin drums and shock-absorbing feet for refrigerator compressors (reducing operating noise);
Toys and Models: Core elastic components for bouncing toys and drone landing gear bumpers (lightweight and impact-resistant);
Electronic Device Protection: Anti-drop silicone linings for mobile phone/tablet cases (replacing hard plastic for improved drop protection).
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