Details

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DIY & Education: Mini Fan 4-Blade Propeller (6cm) — High-Efficiency Toy & Project Motor Propellers (Red/Yellow/Blue) 🛠️🤖

Bring your DIY models, science experiments, and electronic projects to life with our Mini Fan 4-Blade Propellers (6cm). These vibrant, lightweight plastic propellers are specifically engineered to press-fit onto small DC hobby motors (such as standard 130, 140, or 180-size toy motors). Designed with a high-pitch 4-blade layout, they provide excellent air generation or liquid propulsion, making them a staple component for student science kits, STEM projects, and hobby modeling.

Key Performance Features

• ✅ High-Volume 4-Blade Aerodynamics: Crafted with a curved 4-blade structural design that maximizes airflow and thrust efficiency at high RPMs.

• ✅ Snug Universal Shaft Fit: Features a precision-molded center collar designed to slide tightly onto standard 2mm DC hobby motor metal shafts without slipping.

• ✅ Impact-Resistant Lightweight Plastic: Formed from high-grade, smooth-finished polymer that is exceptionally light to reduce motor torque strain while remaining tough against impacts.

• ✅ Vibrant Primary Color Assortment: Comes in bold Red, Yellow, and Blue color schemes, perfect for color-coded sorting, dual-propeller modeling, or classroom visibility.

• ✅ Safe Smooth Edge Finish: Designed with softly rounded blade edges, ensuring safety for younger students and hobbyists during handheld handling.

Technical Specifications

• 🏗️ Product Type: Mini Toy/Project Fan Propeller.

• 🏗️ Blade Count: 4-Blade Configuration.

• 🏗️ Total Diameter: 6cm (60mm).

• 🏗️ Center Shaft Aperture: Standard ~2mm Press-Fit.

• 🏗️ Material: High-Impact Smooth Finish Plastic.

• 🏗️ Available Colors: Red (R), Yellow (Y), Blue (B).

Typical Applications

This 6cm 4-Blade Project Propeller is the ideal solution for:

• STEM Science Projects: Creating classroom models like solar-powered fans, wind turbines, hovercraft assemblies, and electronic circuit builds.

• Toy Car & Boat Models: Functioning as a high-speed rear air-propeller for dragsters or an underwater propeller drive for miniature boats.

• DIY Smart Home Models: Populating miniature architectural mock-ups with operational automated cooling systems driven by microcontrollers.

• Electronics Sourcing & Splicing: Providing replacement or spare parts for modular educational engineering laboratory kits.

3 Top Customer Questions & Concerns 🙋‍♂️

⚡ Will this propeller fit tight on a standard 130-size toy motor shaft? Yes! This propeller is explicitly engineered with a snug-fitting core port intended for standard 2mm shafts, which are used on 130, 140, and 180-size hobby motors. It slides on firmly to maintain a reliable friction hold, even when the motor spins up to its maximum rotational speeds.

🔧 Can I use hot glue to attach it if my motor shaft is thinner than 2mm? If your motor shaft is significantly thinner than 2mm, a loose fit can cause vibration. For an ultra-secure connection on slightly undersized shafts, placing a tiny drop of superglue (cyanoacrylate) or a snippet of thin rubber bands inside the propeller center hub before pushing it onto the metal shaft works much better than hot glue, keeping the assembly balanced.

💪 Does this propeller blow air forward or backward? The direction of the airflow depends entirely on the directional rotation of your DC motor! Since standard hobby motors change direction based on polarity, simply swap the positive (+) and negative (-) wire leads connected to your battery or power supply to switch between a pulling or pushing airflow.