Lenze Brakes
Lenze’s spring-applied brakes are designed on a fundamental fail-safe principle, which is paramount in crane and hoisting applications. While Lenze manufactures the high-quality product, the supplier’s expertise and service are equally important. As one of the main UK stockist, Cobal Cranes Company stands out as a reliable source, particularly for the UK crane industry.
Lenze Brakes provides a crane with unparalleled safety, performance, and durability thanks to their fail-safe, spring-applied design. Sourcing these crucial components from Cobal Cranes offers the benefit of expert advice, immediate availability, and comprehensive supporting crane services, ensuring rapid deployment and minimised operational disruption.
Lenze Brakes – UK Stockist
While Lenze manufactures the high-quality product, the supplier’s expertise and service are equally important. Cobal Cranes Company stands out as a reliable source, particularly for the UK crane industry.
- Lenze Product Specialists:
Cobal Cranes are noted distributors of Lenze Brakes and Clutches, indicating a direct relationship with the manufacturer and expertise in the product range. This specialist knowledge ensures you get the correct brake specification for your specific crane model and application requirements. - Exceptional Stock and Speed:
They explicitly advertise holding a full range of Lenze brakes in stock and offer a commitment to next-day delivery. Minimising downtime is critical for industrial operations, and having immediate access to spares or replacement components is a massive operational advantage. They also claim to offer the best prices in the UK for these products. - Full Crane Service Portfolio:
Cobal Cranes is not just a parts supplier; they are a long-established company (incorporated in 1976) with over 40 years of experience in supplying, installing, servicing, and maintaining all types of overhead cranes. This means they understand how the Lenze brakes function within the context of an entire crane system. Their services include installation, commissioning, maintenance contracts, and a 24-hour nationwide breakdown service, which is invaluable for emergency situations. - Reliability and Trust:
Their long track record in the industry, supplying new and reconditioned cranes and associated equipment up to 100 Ton capacity, underscores a commitment to reliability and customer satisfaction, built on a foundation of providing cost-effective yet reliable solutions.
Lenze Intorq Brake, Type N – Stator/Armature, Part No. 519500
Lenze Intorq Brake, Type N – Stator/Armature, Part No. 519499
Lenze Intorq Brake, Type N – Stator/Armature, Part No. 519498
Lenze Intorq Brake, Type N – Stator/Armature, Part No. 519497
Lenze Intorq Brake, Type E – Stator/Armature, Part No. 519508
Lenze Intorq Brake, Type E – Stator/Armature, Part No. 519506
Lenze Intorq Brake, Type E – Stator/Armature, Part No. 519504
What parts can be fixed on Lenze Brakes
The repairable parts on Lenze brakes for cranes – which are typically spring-applied brakes like the BFK458 series—are usually the friction components and associated mechanical parts that wear out over time.
Key Fixable/Replaceable Parts
The repairable parts on Lenze brakes for cranes—which are typically spring-applied brakes like the BFK458 series—are usually the friction components and associated mechanical parts that wear out over time.
Key Fixable/Replaceable Parts
These components are typically available as spare parts or included in brake repair kits:
Brake Rotor / Friction Plate (Brake Disc): This is the main wear part. It contains the friction linings that create the braking torque. It is the most common part replaced due to wear. *
Hub: The part that connects the rotor to the motor shaft, often via involute teeth. It is replaceable, especially if the teeth show signs of wear or damage.
Brake Coil / Stator (Armature Assembly): While the entire stator/armature assembly may be replaced, the coil itself can sometimes be rewound by specialist repair services if it fails electrically (e.g., due to a short circuit or open reading).
Armature Plate: This component is pulled back by the electromagnet when current is applied to release the brake. It is a key mechanical moving part and may be replaced if damaged or worn.
Brake Springs: These compression springs apply the braking force when power is removed. They can lose tension or break and are replaceable to restore the correct braking torque.
Rectifier/Power Supply Unit: Lenze spring-applied brakes run on DC voltage, and an external rectifier is often used to convert the AC power source. This electrical component is an accessory that can be replaced.
Manual Release Lever: If the manual release mechanism (used for maintenance or non-power operation) is damaged, its parts are typically replaceable.
Seals and Dust Bands: Gaskets, sealing plugs, and dust bands are critical for preventing contaminants (like dust, oil, or moisture) from getting into the friction components and causing premature failure. These are maintenance items that should be replaced if damaged.
Air Gap Adjustment: The air gap between the stator and the armature plate is critical for proper operation. It is pre-set but must be checked and adjusted periodically as the friction linings on the rotor wear down. If the air gap exceeds the maximum specification, the brake may not release correctly, or the coil could be damaged.
Braking Torque Adjustment: In certain models (like the BFK458 Type E), the braking torque can be mechanically reduced or adjusted by altering the spring pressure via an adjustment ring.
For any repair or adjustment, it’s essential to consult the specific manual for your Lenze brake model (e.g., BFK458, BFK470) to ensure the correct parts and procedures are used.