Suspension magnet set

Neodymium Magnets for Slot Suspension: Small in Size, Big in Performance

The SP118001 Suspension Magnet Set is designed for tuners looking to equip their suspension setups with a reliable, consistent magnetic retention system in a controlled size. Made from neodymium, they offer a magnetic field strength far superior to that of conventional ferrite magnets within a compact format that facilitates integration into tight geometries.

Technical Specifications

• Material: Neodymium (rare earth magnet, high energy)
• Outer Diameter: 5.7 mm
• Centre Hole: 2 mm and 3 mm (both sizes included)
• Bag Contents: 2 + 2 units (2 units of each hole size)

Function and Performance

In slot suspension systems, magnets serve a dual purpose: on one hand, they act as a return or preload element for the moving assembly; on the other, they can be used to generate controlled attraction to the track or metal parts of the chassis, thereby modulating the suspension's response to track irregularities. Neodymium ensures that this force remains constant over time, without the progressive degradation observed in lower quality magnets.

The centre hole —available in two different diameters within the same set— allows the magnet to be fixed onto shafts, rods, or pins of various sections, thus expanding its mounting versatility without the need for additional modifications.

Installation and Preparation

Before installing these magnets, it is advisable to clean the contact surfaces to remove grease or dirt that may reduce adhesive adhesion or alter the final position. Given the small size of the pieces, we recommend handling them with fine-tipped tweezers to avoid them attracting each other or sticking to metal tools during the process. As they are made of neodymium, a sharp impact can chip them, so it is preferable to approach them gently to any ferromagnetic surface.

Ideal for…

This set is particularly suitable for tuners working with competition chassis equipped with front or rear suspension systems, and who require a magnet of precise dimensions and high magnetic field. It is also useful in custom chassis projects where the available space is limited and larger diameter solutions cannot fit.

Frequently Asked Questions

How many units are included in the bag and what type are they?

The bag contains 2 + 2 units: 2 magnets with a 2 mm centre hole and 2 magnets with a 3 mm centre hole. All have the same outer diameter of 5.7 mm and are made of neodymium.

Why neodymium and not ferrite?

Neodymium magnets offer a magnetic energy density far superior to that of ferrite for an equivalent size. This allows for the design of more compact suspension systems without sacrificing the necessary retention or preload strength.

Can I cut or adjust the diameter of the hole?

It is not recommended. Neodymium is a brittle material that can chip easily if attempted to be machined without the proper means. If you need a different size, it is safest to look for the magnet that exactly fits your requirements.

Can they be glued with any adhesive?

Cyanocrylate adhesives (super glue) and two-component epoxy resins work well on neodymium. Avoid adhesives that generate heat during curing, as high temperatures can partially demagnetise the magnet.

Does the magnetic field of these magnets affect the car's electronics?

At this scale and with this size, the influence on the car's electronics is minimal during normal use. Nevertheless, it is advisable not to bring them unnecessarily close to sensitive sensors or circuits during installation.

The SP118001 neodymium magnet set for slot car suspension systems delivers high magnetic force in a compact 5.7 mm outer diameter format, with 2 mm and 3 mm centre holes included. Ideal for custom and competition slot car chassis builds requiring precise, reliable magnetic retention components. Available at Ministry of Hobby.