Buy MGT Cylinder Magnets Online in South Africa - Local Stock & Technical Help

Overview: buying MGT cylinder magnets online in South Africa

This page helps South African makers, students, technicians and procurement teams buy MGT cylinder magnets online. Cylinder magnets (also called tubular or rod magnets) are used for fixtures, sensor experiments, magnetic couplings and prototype assemblies. When buying in South Africa you should consider stock availability, lead times, VAT invoices for institutional purchases, branch collection options and the right mechanical and magnetic specifications for your application.

Why choose local stock and what to expect

Buying from a local distributor reduces import delays and lets you collect from a branch if needed. Communica stocks components and maker supplies with branches in Samrand (head office), Pretoria CBD and Cape Town - check branch hours and collection details when planning urgent projects.

If you need an invoice for education, research or company procurement, request an account quote or VAT invoice at checkout. Use the Check Stock in Samrand option for fastest collection from the head warehouse.

• Fast local pickup: Samrand, Pretoria CBD, Cape Town (branches & trading hours)
• Wide brand selection - search by maker on the shop-by-brand page (shop by brand)
• Order for education or bulk procurement with quote requests and VAT invoices

Common cylinder magnet specifications

When choosing MGT cylinder magnets, the key specs are material/grade, diameter, length, surface coating and pull force. Below is a compact comparison to help narrow options.

For a broader parts search, see Communica's collections and overall product index (shop by category, all products).

Selection guidance, compatibility and accessory bundles

Select cylinder magnets by matching mechanical fit and magnetic performance. Typical selection steps: specify the mechanical envelope (diameter x length), choose material and grade for required pull force, then confirm coating and thermal limits. For sensor experiments, align pole orientation (axial vs radial) with the sensor axis.

Calculations and practical examples

Use simple approximations to estimate force and field behaviour. While precise field computation requires manufacturer datasheets or finite-element models, the following rules-of-thumb help pick a starting point:

• Doubling the magnet volume typically increases magnetic force significantly - larger diameter or length raises interaction force.
• For axial pull to a flat steel plate, short, large-diameter cylinders typically give higher pull than long, thin ones of the same volume.

Example: a 10 mm diameter by 5 mm long N42 cylinder will offer noticeably higher pull than a 5 mm diameter by 10 mm long N42 of equal volume distribution. If your application needs an estimated holding force of 5 N, start one grade up or increase diameter and verify with a small test jig.

Wiring, mounting and safety notes

Mount magnets using non-magnetic fasteners or housings. Avoid metallic shims that change field paths. For sensor wiring, place reed switches or Hall sensors where the axial flux is strongest. A simple ASCII wiring layout for a Hall sensor and magnet alignment:

[Magnet (axial north)] ---> |Hall sensor| ---> microcontroller (GND, VCC, OUT)

Keep small magnets away from credit cards, pacemakers and sensitive electronics. For student labs, store magnets in labelled containers and use PPE when handling larger grades.

Accessory bundles and compatibility guidance

Communica offers accessory bundles that simplify installation: magnet housings, countersunk holders, epoxy adhesives rated for bonding magnets and sensor kits for experimenting with Hall-effect devices. Bundles typically include a selection of cylinder diameters and mounting parts for prototyping.

Availability, pricing and procurement in South Africa

Local stock levels vary by size and grade. For urgent projects, use the Check Stock in Samrand option before ordering to confirm immediate availability and collection logistics. Larger quantities or custom lengths may have lead times; ask for a quote to get ZAR estimates and delivery windows. Typical shipping and handling fees apply; institutional purchases should request a VAT invoice during checkout.

Ready to proceed? Shop Now to view available cylinder magnets, Compare Specs to match grade and size, Check Stock in Samrand for fast collection, or Request a Quote for bulk orders or education procurement.

Further help and resources

If you need help choosing the correct magnet for a specific fixture or sensor experiment, Communica's product pages and About Us information describe service scope and stock approach. See the company overview for service history and branch details (about us), or browse the product index to search multiple categories quickly (all products).

Sources

• Communica - About Us
• Neodymium magnet - Wikipedia
• Magnet basics and properties - Engineering Toolbox