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TPU Injection Molding

What is TPU Injection Molding?

Our TPU injection molding process starts with precision mold design, ensuring optimal part quality and consistent performance. We use advanced injection molding machines to accurately melt and inject thermoplastic polyurethane (TPU) pellets into meticulously crafted molds. The material then undergoes controlled cooling and solidification, producing flexible, durable components with excellent wear resistance and elasticity. Finally, professional finishing techniques guarantee high-quality TPU parts that meet stringent industry standards.

With expertise in mold design and fabrication, process optimization, and quality control, we deliver cost-effective, scalable TPU injection molding solutions tailored to diverse industries. Whether you need custom prototypes or large-scale production, our strict quality standards and reliable manufacturing ensure superior and consistent TPU components.

Injection Molding TPU Parameters Table

Parameter Recommended Range
Wall Thickness 0.8mm–3mm
Maximum Part Size 2000mm x 1500mm x 1000mm
Minimum Feature Size 0.3mm–0.8mm
Tolerances ±0.05mm–±0.15mm

TPU Material Properties

TPU (Thermoplastic Polyurethane) is a versatile elastomer used in TPU molding for its outstanding balance of flexibility and toughness. It bridges the gap between rubber and plastic, making TPU material injection molding a preferred method for durable yet elastic parts.
Key characteristics of TPU include:

  • High abrasion resistance
  • Excellent low-temperature flexibility
  • Good oil and chemical resistance
  • Superior elongation and tear strength
Property Density Tensile Strength Flexural Strength Impact Strength (Unnotched) Heat Deflection Temp (0.45 MPa)
Value/Description 1.10–1.25 g/cm³ 40 -50 MPa 60-70 MPa 20 -30 kJ/m² 90-100℃

Advantages & Disadvantages of TPU Injection Molding

TPU injection molding is widely favored for its unique combination of flexibility, toughness, and wear resistance. While the process does come with certain challenges—such as sensitivity to moisture and precise temperature control—its adaptability makes it an excellent choice for custom applications across various industries. Understanding the advantages and limitations of TPU molding helps ensure it’s the right fit for your specific project.

Advantages

Disadvantages

Applications of TPU Injection Molding

Thanks to its high elasticity and resilience, TPU molding is used across many sectors. From shock-absorbing phone cases to medical-grade tubing, the TPU injection molding process creates reliable components in:

Automotive Industry

Automtoive Injection Molding

Consumer Electronics

consumer electronics featured

Medical & Healthcare

Medical Injection Molding Application

Industrial & Sporting Goods

industrial equipment featured
Typically, between 200°C and 250°C. Precise control helps avoid thermal degradation or bubbles.
Yes. TPU is hygroscopic and must be dried (e.g., at 100°C for 2–4 hours) before molding to prevent steam-related defects.
Absolutely. TPU injection molding is often used in overmolding for soft-touch parts or combining hard and soft materials.
It depends on your needs. TPU offers easier processing and recyclability, while rubber/silicone may resist higher heat or offer better elasticity in some cases.
Automotive, medical, electronics, and consumer products benefit from TPU molding due to its versatility, toughness, and flexibility.
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