20mm 20pcs Polypropylene (PP) Hollow Plastic Balls – elephrun Sphere

Description

Product Overview

The 20mm polypropylene (PP) hollow plastic balls are engineered to meet the exacting standards of industrial and scientific applications. Each ball is precision‑molded from high‑grade polypropylene, a material known for its excellent chemical resistance, low density, and superior dimensional stability. The hollow design reduces overall weight while preserving structural integrity, making these spheres ideal for applications where balance, buoyancy, or reduced mass are critical. With a uniform diameter of 20mm and a tight tolerance range, the balls provide consistent performance across large batches, ensuring repeatable results in testing rigs, calibration equipment, and prototype assemblies. The pack includes 20 individual balls, each weighing approximately 0.847 ounces, allowing users to quickly scale projects without the need for additional inventory management. Manufactured by Gosen Industry Corporation Limited under the elephrun brand, these spheres benefit from rigorous quality control processes, including automated inspection and batch testing, to guarantee that every unit meets the advertised specifications.

Usage

These 20mm PP hollow balls excel in a wide range of environments, from laboratory benches to manufacturing floors. In precision engineering, they serve as low‑friction bearings, calibration standards, and balance weights for motion control systems. Their lightweight nature makes them suitable for fluid dynamics experiments, where they can be suspended in liquids to study buoyancy, flow patterns, and particle tracking without significantly altering the medium’s properties. In the aerospace and automotive sectors, the balls are often incorporated into prototype assemblies to simulate component masses and test vibration damping characteristics. Their chemical inertness allows safe use in corrosive environments, such as chemical processing plants or marine testing facilities, where traditional metal spheres might degrade. Additionally, the balls are compatible with 3‑D printing post‑processing workflows, acting as placeholders or supports that can be easily removed after curing. The versatility of these spheres extends to educational settings, where they provide hands‑on learning tools for physics demonstrations, engineering curricula, and material science labs.

Why Choose Us

Choosing the elephrun 20mm polypropylene hollow balls means partnering with a supplier that prioritizes quality, reliability, and customer satisfaction. Our manufacturing process incorporates state‑of‑the‑art injection molding technology, ensuring each sphere achieves a flawless surface finish and exact dimensional tolerances. We conduct comprehensive batch testing, including hardness, impact resistance, and dimensional verification, to certify that every ball performs as expected under demanding conditions. Our commitment to sustainability is reflected in the use of recyclable polypropylene and environmentally responsible production practices, reducing waste and carbon footprint. Moreover, we provide responsive technical support, offering guidance on optimal usage, integration tips, and troubleshooting assistance. Should any issue arise, our dedicated after‑sales team is ready to address concerns promptly, reinforcing our reputation for dependable service. By selecting our product, you gain access to a proven solution backed by a track record of high customer ratings and a best‑seller rank that underscores its popularity among professionals.

Key Features

• Precision‑molded 20mm diameter ensures consistent fit and performance across all units.
• Lightweight hollow design reduces mass while maintaining structural strength for balance‑critical applications.
• High‑grade polypropylene offers excellent chemical resistance and durability in harsh environments.
• Pack of 20 balls provides immediate scalability for projects without additional ordering delays.
• Responsive customer support and after‑sales service guarantee assistance throughout the product lifecycle.

FAQ

What is the temperature range these polypropylene balls can withstand?

The balls are rated for continuous use from -20°C to 120°C (-4°F to 248°F). This range covers most industrial, laboratory, and outdoor applications, ensuring the material retains its mechanical properties without deformation or loss of integrity.

Can these balls be used in liquid immersion tests?

Yes, the polypropylene material is chemically inert and does not absorb water or most solvents. They are suitable for immersion in water, oil, and many chemical solutions, making them ideal for buoyancy studies, fluid dynamics experiments, and corrosion testing.

Are the balls compatible with standard bearing housings?

Absolutely. The 20mm diameter conforms to common bearing and shaft specifications, allowing seamless integration into existing mechanical assemblies. The smooth surface finish minimizes friction, and the hollow core reduces load on supporting structures.

What warranty or guarantee does elephrun provide?

Elephrun offers a one‑year limited warranty covering material defects and manufacturing inconsistencies. If any ball fails to meet the specified dimensions or material standards within this period, we will replace the affected units at no additional cost.

How should I store the balls to maintain their quality?

Store the balls in a cool, dry environment away from direct sunlight and strong chemicals. Keeping them in their original packaging or a sealed container helps prevent dust accumulation and protects the surface finish until they are ready for use.