Electromagnetic Brakes
Spring-applied electromagnetic brakes for motors, hoists, crane travel drives and industrial equipment where reliable stopping and holding are required.
Complete crane braking solutions for overhead cranes, hoists, gantries, winches and industrial machinery.
AC Crane Maintenance supplies and supports electromagnetic brakes, electro-hydraulic thruster brakes, spring-applied motor brakes, crane brake rectifiers, brake coils, brake linings, service kits and complete brake systems for industrial lifting equipment.
We assist with replacement brakes, obsolete brake alternatives, rectifier faults, worn brake discs, damaged coils, brake drag, slow release, slipping and hoist brake failures. Enquiries include Binder, Kendrion, Lenze / INTORQ, Siegerland, Merobel and EMG / ELDRO-style brake systems, subject to model compatibility.
Crane brake problems can create serious downtime and safety risks. A faulty brake can cause slipping loads, uncontrolled movement, poor stopping accuracy, overheating and excessive friction component wear.
We assist with identifying the correct brake system, replacement spare, rectifier, coil or service kit for the application.
Spring-applied electromagnetic brakes for motors, hoists, crane travel drives and industrial equipment where reliable stopping and holding are required.
Thruster-operated drum and shoe brakes for heavy-duty overhead cranes, gantries, long-travel systems, winches and industrial lifting applications.
Replacement rectifiers for DC brake coils, including suitable half-wave, full-wave and over-excitation rectifier configurations.
Brake coils, solenoids and electromagnetic release components for cranes, motors, hoists and industrial brake assemblies.
Brake discs, friction linings, shoes, pads, springs, hubs, seals and maintenance components for selected brake systems.
Complete replacement brake systems for obsolete, damaged or unreliable crane brakes where a full replacement or engineered upgrade is appropriate.
Replacement components and complete braking solutions for maintenance, breakdown repairs, crane refurbishments and industrial equipment upgrades.
Used on hoists, crane travel drives and industrial motors where spring-applied braking and electromagnetic release are required.
Heavy-duty brake systems used on cranes and industrial equipment where robust stopping performance is required.
Rectifiers convert AC supply to a suitable DC output for compatible brake coils and are a potential failure point in brake release circuits.
Maintenance and repair components for selected electromagnetic, thruster and industrial brake models.
If a crane brake is slipping, dragging, overheating, failing to release or not holding correctly, the cause may be electrical, mechanical or a combination of both.
Possible causes include failed rectifiers, incorrect voltage, damaged coils, seized armatures, incorrect air gaps or mechanical binding.
Possible causes include worn friction material, weak springs, contamination, incorrect torque settings or excessive application loading.
Possible causes include incorrect air gaps, incomplete release, mechanical wear, inadequate supply voltage or damaged components.
A failed rectifier can prevent a brake from releasing or cause slow, weak or inconsistent operation of the brake release circuit.
Worn or damaged friction material can reduce braking performance and damage discs, drums and associated components.
Where older brake models are no longer available, we can assist with compatible alternatives or engineered brake replacement options.
The more information we receive, the faster we can identify a suitable brake, rectifier, coil or service kit.
Photos of the existing brake and its nameplate are particularly useful when identifying older or obsolete equipment.
We support braking system enquiries across industrial environments where controlled stopping, holding and reliable movement are essential.
Electromagnetic brakes and thruster brakes can experience unnecessary wear when cranes start and stop harshly.
A correctly selected and configured Variable Speed Drive (VSD) can control acceleration and deceleration, reduce mechanical shock and improve movement precision on suitable crane travel and hoist applications.
Controlled acceleration reduces sudden shock loading on gearboxes, wheels, couplings, shafts, structures and associated drive components.
Correctly configured deceleration can reduce harsh stopping forces, with mechanical brake engagement coordinated to the movement and safety requirements.
Reducing unnecessary friction braking and shock loading can help extend the service life of brake linings, discs and mechanical components.
Adjustable travel speeds and smoother movement can improve positioning accuracy and handling on suitable crane applications.
We can assist with VSD integration, control panel upgrades, brake rectifier interfaces, limit circuits and movement control logic.
If a crane repeatedly damages brakes, jerks during travel or stops harshly, we can assess whether a VSD upgrade is an appropriate long-term solution.
Replacing a worn brake can solve an immediate fault, but it may not address the cause of repeated brake wear.
If a crane starts aggressively, stops abruptly or places excessive shock loads on its drive train, a suitable VSD upgrade may improve movement control and reduce unnecessary mechanical stress.
AC Crane Maintenance can consult, quote, supply and install VSD crane control systems, complete electrical panels and compatible brake components.
From replacement spares to complete crane control modernisation, we can assist throughout the process.
Review the crane movement, motor, brake condition and application requirements.
Identify suitable brake components, VSD options and any necessary control panel modifications.
Supply replacement brakes, rectifiers, spares, drives and engineered control panels.
Installation, integration, configuration and commissioning by arrangement.
Explore our related crane components, electrical systems and maintenance services.
Custom manufactured components, crane wheels, shafts, bushes and engineered replacement spares.
View Engineered Parts →Crane conductor systems, current collectors, festoons, cable reels and electrification.
View Power Supply →Maintenance, servicing, inspections and repairs for cranes and hoists.
View Crane Servicing →Variable Speed Drives, electrical control panels, braking components and industrial motor control.
View VSD Solutions →Modernisation, control upgrades and complete crane refurbishment.
View Crane Upgrades →Emergency crane breakdown support, electrical faults and mechanical repairs.
View Breakdown Services →Send us brake photographs, nameplate details, coil voltage, rectifier specifications, motor information and a description of the problem.
We can assist with complete brake systems, replacement spares, service kits, rectifiers, VSDs and crane control panel upgrades.
sales@accranes.co.za