STROMAG 5K 120653

Stromag 5K Fail-Safe Electromagnetic Brake Caliper

Description

This is a model 5K industrial brake caliper from Stromag France (SIME Brakes). It is a spring-applied, electromagnetically released brake, which makes it a fail-safe device ideal for safety-critical holding and stopping applications. The unit is designed for a 50V DC power supply and features a robust cast-iron construction for durability in demanding environments. This item is in excellent, unused condition and includes a set of replacement brake linings.

Specifications

• Manufacturer: Stromag (SIME Brakes)
• Model: 5K
• Voltage: 50V DC
• Operation: Spring-applied, electromagnetically released (Fail-safe)
• Application: Industrial machinery, cranes, winches, conveyors

Label Info

• Typ./Model: 5K
• Volts: 50 c.c.
• N: 720836
• Cde/order/kom/pedido N: 120 653

Application

This type of brake is commonly used in material handling systems, wind turbines, and industrial machinery where controlled deceleration and secure holding are essential for operational safety.

Country of Origin

Made in France.

CO2 Impact

Opting for this pre-owned brake caliper saves approximately 74 kg of CO2 compared to manufacturing a new one. This choice supports a circular economy and reduces industrial waste.

Availability

This unit is in stock and ready for immediate dispatch. Order now from spareparts2day for expert support and fast delivery.

FAQ

What is the correct air gap for this Stromag 5K brake and how do I adjust it?
The air gap is critical for performance. For the 5K model, refer to the original manual, but typically the gap is set between 0.2mm and 0.4mm. Adjustment is done using the set screws after releasing the manual lever, ensuring the gap is even on both sides.

This brake is rated for 50V DC. Can I use a different voltage, for example, by rectifying an AC supply?
It is strongly advised to only use the specified 50V DC. Using an incorrect voltage can lead to coil burnout or insufficient release force. If using a rectified AC supply, ensure it is a high-quality, full-wave rectified, and smoothed DC power source to prevent chatter and overheating.

The included brake pads are marked “NE PAS REUTILISER” (Do not reuse). What material are they made of and are modern asbestos-free alternatives available?
The original pads were likely a specific organic friction material. “Do not reuse” refers to not re-bonding worn linings. While older pads could contain asbestos, the included spare set is likely asbestos-free if manufactured after the bans. Modern, high-performance, asbestos-free organic linings are available from Stromag or third-party specialists. Always verify compatibility before installation.

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Last Update: March 13, 2026