Engineering-Driven Industrial Clutch & Brake Partner

Electromagnetic clutches, brakes & custom-made motion solutions.

ARA EM Clutch & Brake Systems delivers premium-grade electromagnetic clutches, brakes, torque control systems and custom-made engineering solutions through its exclusive partnership with YAN Clutch Industries Int., engineered for high performance, reliability and precision in demanding industrial applications.

Core Competence

  • Electromagnetic clutches
  • Electromagnetic brakes
  • Powder clutches & brakes
  • Tension control systems
  • Industrial drive components
  • Custom-made engineering solutions
Product Portfolio

Industrial electromagnetic clutch, brake and control solutions.

A focused product range for controlled torque transmission, braking, holding, positioning, web tension control and custom-made machine integration.

Powder Brakes

Magnetic powder brake units for stable torque control in winding, unwinding and tension applications.

Powder Clutches

Magnetic powder clutch systems for smooth torque transmission and precise slip control.

Tension Controllers

Manual and automatic control solutions for consistent material tension in industrial processes.

Dry Single-Plate EM Clutches

Electromagnetic clutch units designed for reliable engagement in compact mechanical systems.

Dry Single-Plate EM Brakes

Electromagnetic brake units for controlled stopping, holding and positioning tasks.

Clutch-Brake Units

Combined electromagnetic clutch and brake assemblies for precise start-stop applications.

Fail-Safe EM Brakes

Reverse-action safety brakes for holding and emergency stopping when power is removed.

Tooth-Type EM Clutches

Positive engagement electromagnetic tooth clutches for high torque transmission without slip.

Hysteresis Brakes

Contactless brake technology for smooth, repeatable torque control and long service life.

Hysteresis Clutches

Contactless clutch solutions for applications requiring precise and stable torque behaviour.

Servo Web Guiding Systems

Guiding systems for alignment and correction in web processing and converting equipment.

Pneumatic Clutches & Brakes

Air-operated clutch and brake systems for robust industrial motion control.

AC Motors

AC motor solutions for industrial drive and automation applications.

DC Motors

DC motor solutions for controlled speed and torque requirements.

Gear Reducers

Gear reducer units for adapting speed and torque to machine requirements.

Motor Speed Controllers

Control units for regulating motor speed in industrial systems.

Other Components

Additional accessories and drive-related components for customised system configurations.

Inquiry List

Select a product above to prepare a direct enquiry. The request is sent to Alfred R. Angst, Chlosterholzweg 1, 8914 Aeugst, Switzerland.

Website: www.ara-clutch-brake.com
Email: enquiry@ara-clutch-brake.com

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Attach drawings, specifications, datasheets or pictures for faster technical evaluation and quotation support.

Selected Product Examples

EMC-40 / 40C Manual Tension Controller
EPC Powder Clutch
EPC-K Hollow-Rotation Powder Clutch
EPB-K Hollow-Rotation Powder Brake
EFUL-Z EM Clutch / Brake Unit
EFDL-A Forward / Reverse Dual Clutch Unit
Technical Principles

Electromagnetic clutch and brake technology.

Technical overview of operating principles, common product types and engineering parameters used in industrial clutch and brake applications.

Electromagnetic Clutches and Brakes

Electromagnetic clutches and brakes are electrically actuated components that transmit torque mechanically. When voltage is applied to the coil, a magnetic field is generated. This magnetic flux pulls an armature towards the rotor or brake field, creating frictional contact and allowing torque transmission, stopping or holding of a rotating load.

Typical applications include packaging machines, printing systems, textile and film processing, food processing equipment, winding and unwinding systems, indexing mechanisms and high-cycle industrial machines.

Types of Electromagnetic Clutches

Different clutch designs are selected according to torque, speed, engagement behaviour, mounting situation and required precision.

  • Single-face clutches: compact friction clutches for start-stop and torque transmission tasks.
  • Tooth clutches: positive engagement clutches for high torque transmission without slip.
  • Magnetic particle clutches: smooth torque control for winding, unwinding and tension regulation.
  • Hysteresis clutches: contactless torque transmission with stable behaviour.

Types of Electromagnetic Brakes

Electromagnetic brakes are used to decelerate, stop or hold rotating machine parts. The correct type depends on safety requirements, torque level, cycling rate and environmental conditions.

  • Single-face brakes: standard friction brakes for stopping and holding.
  • Spring-applied fail-safe brakes: mechanically engaged brakes that release electrically.
  • Magnetic particle brakes: continuously adjustable torque for web tension control.
  • Hysteresis brakes: smooth, contactless braking with minimal wear.

How Industrial Clutches and Brakes Work

Electrical energy creates a magnetic field, the magnetic field attracts the armature, friction contact is generated, and torque is transferred or braking force is applied. In a clutch, the driven side accelerates until input and output speed are synchronised. In a brake, torque is transferred into the machine frame to decelerate or hold the load.

1. Coil energised
Voltage and current generate magnetic flux.
2. Armature pulled in
The air gap is overcome by magnetic attraction.
3. Friction contact
Mechanical torque is transmitted through the contact faces.
4. Release
When power is removed, springs separate the armature.

Electromagnetic Clutches

A typical electromagnetic clutch consists of a field coil, rotor, armature and hub. The rotor is connected to the input side, while the armature and hub are connected to the output side. When the coil is energised, magnetic flux passes through the rotor and attracts the armature. The resulting frictional contact transfers torque and accelerates the output side.

Torque performance is influenced by coil voltage and current, air gap, friction surface condition, rotational speed, inertia and engagement frequency. For demanding applications, dynamic torque, response time, heat generation and wear behaviour must be considered during sizing.

Power-Off Permanent Magnet Brakes

Permanent magnet brakes are power-off holding brakes. In the de-energised state, permanent magnets generate the holding force. When voltage is applied, the magnetic field is neutralised, releasing the brake.

  • Fail-safe operation: braking force without electrical power.
  • Compact design: high torque in small installation space.
  • Typical use: robotics, automation, vertical drives.

Electromagnetic Tooth Clutches

Tooth clutches transmit torque through interlocking teeth rather than friction surfaces. They provide zero slip once engaged and are suitable for high torque transmission at synchronised speeds.

  • Positive engagement: no slip after locking.
  • High torque capability: ideal for indexing systems.
  • Requirement: engagement at low or zero speed.

Electromagnetic Particle Clutches

Particle clutches use magnetic powder between rotor and armature. When energised, the particles align in chains, transmitting torque smoothly and proportionally to current.

  • Linear torque control: torque proportional to current.
  • Smooth slip behaviour: ideal for tension control.
  • Application: winding, unwinding, printing.

Electromagnetic Particle Brakes

Particle brakes operate on the same principle as particle clutches but dissipate torque into the housing. They are used for controlled braking and constant tension applications.

  • Stable braking torque: independent of speed.
  • Continuous operation: suitable for long duty cycles.
  • Precision control: ideal for web tension systems.

Engineering Notes

Important design parameters include static torque, dynamic torque, response time, air gap, duty cycle, thermal load, inertia, required stopping time and environmental contamination. Burnishing may be required to achieve full rated torque because new friction faces initially contact only on microscopic surface peaks.

Our manufacturing partner is YAN Clutch Industries in Taiwan, with production facilities in Southeast Asia and China. The portfolio supports standard industrial applications as well as customised configurations for machine builders and service partners.

Engineering Focus

Engineering-driven support for standard and custom-made clutch & brake solutions.

EM

Our core expertise lies in electromagnetic clutch and brake technology, supporting machine builders, service organisations and industrial operators who require an engineering-driven partner for drive, holding, stopping and precise torque control applications.

In addition to standard products, ARA EM Clutch & Brake Systems provides custom-engineered solutions tailored to specific machine requirements, including torque characteristics, installation constraints, control integration and application-specific performance optimisation.

With a focused portfolio and a strong engineering orientation, ARA EM Clutch & Brake Systems delivers optimised solutions for production equipment, winding and converting systems, automation platforms and other demanding industrial applications, engineered for reliability, efficiency and long-term operational stability.

Purchase

Purchase or request a product quotation.

Choose the option that best fits your enquiry. Customers with a known part or model number can submit a direct request. If the exact part is unknown, we will help identify the suitable clutch, brake or control component for the application.

I know the part or model number

Use this option when you already know the product type, series, model number, torque rating, voltage or replacement reference. Your request will be linked directly to the product inquiry form.

Submit Model Request

I do not know the part or model number

Use this option when you need support selecting the correct component. Please describe the machine, application, torque requirement, voltage, duty cycle, installation space and any available drawings.

Request Technical Support
Purchasing support: Please include as much technical information as possible, such as application type, operating speed, torque, voltage, mounting position, duty cycle, environmental conditions and quantity. Drawings, pictures or datasheets can be attached in the inquiry form.
Contact

Request technical information or product support.

For product selection, replacement parts, custom-made solutions or system enquiries, please contact us directly.

CompanyAlfred R. Angst
EM Clutch & Brake Systems
Mobile+41 79 127 36 36
AddressChlosterholzweg 1
8914 Aeugst, Switzerland
Contactwww.ara-clutch-brake.com
enquiry@ara-clutch-brake.com

Direct Inquiry Form

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