3/4" Ceramic Disc Magnet

3/4" Ceramic Disc Magnet – Grade 5 Ferrite, 0.71 Inch x 0.2 Inch

Experience consistent magnetic holding with the 3/4" ceramic disc magnet, crafted for reliability in craft, industrial, and educational settings. This Grade 5 ferrite magnet measures 0.710" in diameter and 0.200" in thickness (18 mm x 5 mm), delivering approximately 12 ounces (0.34 kg) of pull force. Manufactured using a high-temperature sintering process, this magnet is axially magnetized through the thickness, ensuring dependable performance for a wide range of applications.

Key Features

• Grade 5 ferrite composition offers stable magnetic properties and cost efficiency
• Axially magnetized through the thickness for predictable alignment and holding
• Standard tolerance of ±0.005" on diameter and thickness for reliable sizing
• Compatible with hot glue and epoxy adhesives for secure mounting
• Withstands operating temperatures up to 592°F (300°C), suitable for demanding environments
• Available in bulk packs (70 or 350) to support classrooms, workshops, and production runs
• Backed by Craftparts.com’s legacy in woodcraft and supplies, trusted since 1976

Specifications

• Material: Ferrite (ceramic), composed of iron oxide and barium or strontium carbonate
• Grade: 5
• Diameter: 0.710" (18 mm)
• Thickness: 0.200" (5 mm)
• Magnetization: Axially magnetized through thickness
• Pull Force: Approx. 12 oz (0.34 kg)
• Tolerance: ±0.005" (0.13 mm) on diameter and thickness
• Surface: Hard, brittle, dark gray
• Magnetic Properties: Br: 3,950 Gauss; BHmax: 3.6 MGOe; Hc: 2,400 Oersteds; Hci: 2,450 Oersteds
• Max Operating Temp: 592°F (300°C)
• Curie Temp: 842°F (450°C)
• Density: 0.178 lb/in³

Suggested Uses

Professional Applications

• Cabinet and furniture closures for secure, discreet fastening
• Educational science kits for demonstrating magnetic fields and properties
• Small motors, sensors, and assemblies requiring consistent holding power
• Trade show displays and retail signage for easy attachment and removal

Creative DIY and Children’s Projects

• Magnetic puzzles and games for hands-on learning
• Custom refrigerator magnets and message boards
• Magnetic fasteners for homemade bags, boxes, or costumes
• STEM experiments, such as building simple motors or magnetic levitation models

Since 1976, Craftparts.com has been dedicated to supporting makers, educators, and professionals with dependable materials and components. The 3/4" ceramic disc magnet delivers steadfast performance, enabling you to bring your ideas to life with confidence. Whether you’re building a classroom demonstration, assembling a functional latch, or inspiring a child’s curiosity with a hands-on project, this magnet offers the reliability and consistency you need. Trust in Craftparts.com’s heritage and let each project become a testament to your skill and imagination