31.8mm Button Magnet With Split Contact Area And Through-Hole, Holding Force 48 N, Max Temp 450 °C - TECWERK

Take advantage of a compact magnetic fastening solution that combines AlNiCo 500 temperature resistance and a reliable holding force of 48 N for stable fixture work; order directly via Metav Werkzeuge or consult our specialists for delivery from Emmerich.

Button magnet D31.8×H25.4 mm – TECWERK with split contact face and through-hole, high-temperature resistant

The Button magnet D31.8×H25.4 mm by TECWERK is a compact magnetic fastening element designed for industrial fixtures and tooling where elevated temperatures and secure fixing are required.

• AlNiCo 500 magnet material for high-temp use
• Split contact surface for improved grip
• Through-hole Ø7.1 mm for secure fixing
• Holding force 48 N for compact fastening

High-temperature performance for demanding applications

Made from AlNiCo 500, this round magnetic element is engineered to maintain magnetic stability at elevated temperatures, enabling use in processes where heat resistance is essential. The specification of a maximum operating temperature of 450 °C means the magnet can be integrated into fixtures exposed to heat during soldering, brazing or thermal processing. Explaining the material: AlNiCo alloys combine aluminium, nickel and cobalt to provide predictable magnetic behaviour under heat; this reduces the risk of sudden demagnetisation and supports consistent performance in industrial cycles.

Secure fixing thanks to split contact face and through-hole

The combination of a split contact surface and a through-hole Ø7.1 mm offers both improved surface contact and reliable mechanical fastening. The divided face increases real contact area on uneven surfaces, improving shear resistance, while the central through-hole permits the use of a screw or pin for positive location. Together these features reduce slippage and make the element suitable for jigs, small fixtures and clamping aids where repeatable positioning and mechanical restraint are required.

Compact design with dependable holding power

Despite its modest size, this circular magnet delivers a holding force of 48 N, providing secure retention for small tooling parts and workpieces. The combination of compact geometry and magnetic strength allows integration into confined assemblies or retrofit of existing fixtures without major changes. In practice, the element serves as a space-efficient magnetic fastener when a balance of grip and compactness is required, and it performs best where moderate clamping is needed rather than heavy structural loads.

Practical notes for installation and material handling

The part is supplied individually and includes a through-hole for mechanical fixing, simplifying installation into plates or brackets. The product accepts a coating bake temperature of 200 °C, enabling painted or lacquered assemblies without compromising magnetic behaviour when following the stated bake limits. For procurement and delivery, the item is available as a single unit, and its features support use in production, assembly jigs and thermal process environments where a durable, compact magnetic solution is required.

For high-temperature fixture needs, choose the TECWERK button magnet and contact Metav Werkzeuge for expert advice and reliable supply from Emmerich — eMail: info@metav-werkzeuge.com, Phone: +49 2822 7131930

Technical data

• Article number: 4000832268NW
• Product type: Button magnet
• Material: AlNiCo 500
• Execution: with split contact surface and through-hole
• Manufacturer: TECWERK

Facts

• Diameter: 31.8 mm
• Height: 25.4 mm
• Through-hole diameter: 7.1 mm
• Holding force: 48 N
• Maximum operating temperature: 450 °C
• Coating bake temperature: 200 °C
• Packaging unit: 1

Special features

• Split contact surface
• Through-hole Ø7.1 mm for mechanical fixing
• High temperature resistance (AlNiCo 500)
• Suitable for heat-exposed fixtures and tooling

FAQ

What material is the magnet made from and why does that matter?
The magnet is manufactured from AlNiCo 500; this alloy maintains magnetic stability at elevated temperatures, which is why the Button magnet D31.8×H25.4 mm (TECWERK, SKU 4000832268NW) is specified for applications up to 450 °C.

How strong is the magnetic holding force?
The component provides a holding force of 48 N, offering secure retention for light to medium clamping tasks in jigs and small fixtures.

Can the magnet be mechanically secured?
Yes — the device features a through-hole of 7.1 mm diameter that allows mechanical fixing with a screw or pin for positive location and improved resistance to shear forces.

What are the temperature limits for use and coating?
Maximum operating temperature for the magnet is 450 °C; the permitted coating bake temperature is 200 °C, so painting or lacquering processes must respect this limit.

How is the product supplied?
The item is supplied as a single unit (packaging unit 1); the SKU is 4000832268NW and the product type is a button magnet from TECWERK.

TECWERK: Manufacturer / Responsible: NORDWEST Handel AG, Robert-Schuman-Straße 17, 44263 Dortmund