Neodymium Cylinder Magnet - 4mm x 6.5mm | N35 | 30° Tapered North End
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This precision-engineered Neodymium Cylinder Magnet (4mm x 6.5mm) is a powerful rare earth magnet designed for specialised industrial applications. Manufactured using Grade N35 neodymium, this compact cylindrical magnet features a 30° tapered north end, making it ideal for applications requiring precise magnetic positioning or integration into engineered assemblies.
Despite its small size, this rare earth cylinder magnet delivers strong magnetic performance, recording a magnetic flux reading of 5960 Gauss. Its unique tapered geometry was originally developed for an industrial OEM application and continues to be suited for high-precision mechanical and magnetic systems.
Key Features
Diameter: 4mm
Height: 6.5mm
Magnet Grade: N35 Neodymium
Magnetic Flux: 5960 Gauss
Magnet Shape: Cylinder with 30° tapered north end
Part Number: 21054Nth
Material: Rare Earth Neodymium (NdFeB)
Designed for Precision Industrial Applications
This custom-designed tapered neodymium cylinder magnet was originally engineered for a large industrial customer as a component in gas valve assemblies. The tapered north end enables accurate positioning within valve mechanisms and other precision devices where controlled magnetic interaction is required.
The magnet’s specialised geometry makes it particularly well suited for integration into OEM components used in alternative fuel systems, including products supplied to global automotive manufacturers. Its design supports applications in gas valves, precision control systems, and engineered magnetic assemblies.
Typical Applications
Gas valve components
OEM automotive parts
Alternative fuel system components
Precision magnetic assemblies
Sensor and actuator systems
Industrial engineering projects
Rare Earth Strength in a Compact Form
Neodymium magnets are the strongest type of permanent magnet available, offering exceptional magnetic strength relative to their size. This 4mm x 6.5mm cylindrical magnet provides reliable magnetic performance in compact mechanical assemblies where space is limited but magnetic force is critical.
Typical Physical Properties
NB: Ranges are indicative for product category, please check individual products for specic values within that range.
Production Flow Diagram
Demagnetization Curves
Surface Treatment
The most common coating for Neodymium magnets is Nickel + Copper + Nickel (Ni + Cu + Ni). This coating offers the magnet relatively good protection from corrosion and passive applications. If the magnet will be exposed to moisture or liquid then consider the use of an organic coating such as Epoxy. A hard wearing coating, Epoxy is suited to applications where the magnet will come under some friction or knocking.
Range and Tolerance
Magnets are readily available in Blocks, Discs, Cylinders & Rings. We specializes in the supply of short-run prototype magnets including Arc Segments, various magnetic orientations etc. If you need a magnet size that we don't carry in stock, submit a Design-a-Magnet enquiry for a quote on your custom magnet design.
Magnetic Properties
Neodymium magnets are offered in several different grades. The first section N30-54 has an operating temperature of up to 80 degrees. Most of our stock only goes up to N38. The second section, denoted with the "M" prefix after the grade has an operating temperature 100 degrees. After this the grades are "H", "SH", "UH" & "EH". In order for the magnet to withstand a higher operating temperature, during production more of the raw material PrNd is incorporated as these elements have a naturally occurring resistance to high temperatures.
Returns Policy
If you are not entirely satisfied with your purchase, we're here to help.
We have a 30 Day Returns policy at Frenergy Magnets. You may return your item within 30 days of receiving it to receive a refund.
The product/s must be unused and in the same condition you received them in. Please contact us at info@frenergy.com.au to initiate the returns process.
The buyer is responsible for the cost of returning the order.
