Industrial Friction Brakes


Pneumatic friction brakes from Mach III provide simple solutions for stopping, holding and tension control. They are available in both spring engaged and air engaged models.

Spring engaged brakes remain engaged in the absence of air pressure. They are often referred to as power-off brakes, fail-safe brakes or holding brakes. These brakes are best suited for applications where they are used to prevent rotary motion of a load and are not suitable for dynamic stopping. Click here to view an illustration of how Mach III's spring engaged brakes work.

Air engaged brakes are applied with compressed air and release in the absence of air pressure. They are often referred to as power-on brakes. These brakes are best suited for bringing a load to a stop and preventing rotary motion of a load. SENSIFLEX® air engaged brakes are specifically designed for tension control, such as providing hold back tension on a roll of film in packaging or laminating equipment. Click here to view an illustration of how Mach III's air engaged brakes work.

Spring Engaged - Air Released Friction Brakes
Spring Engaged - Air Released Friction Brakes

Function: Holding, Failsafe (Non-Cycling Applications)
Drive Arrangement: Machine Frame or Bracket to Shaft

  • Spring pressure compresses drive and friction discs to produce a fixed amount of torque.
  • Air pressure is applied to disengage the brake.

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NEMA Frame Spring Engaged - Air Released Friction Brakes
NEMA Frame Spring Engaged - Air Released Friction Brakes

Function: Holding, Failsafe (Non-Cycling Applications)
Drive Arrangement: Motor to Gear Reducer (Gear Box)

  • Spring pressure compresses drive and friction discs to produce a fixed amount of torque.
  • Air pressure is applied to disengage the brake.

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Air Engaged - Spring Released Friction Brakes
Air Engaged - Spring Released Friction Brakes

Function: Stopping, Holding (Cycling Applications)
Drive Arrangement: Machine Frame or Bracket to Shaft

  • Applying air pressure compresses drive and friction discs to produce torque.
  • Torque is proportional to the air pressure applied.
  • Separator springs assure full brake release when air pressure is absent.

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SENSIFLEX® Brakes For Unwind Tension Control
SENSIFLEX Brakes For Unwind Tension Control

Function: Tension Control
Drive Arrangement: Machine Frame or Bracket to Shaft

  • Patented design maintains smooth, constant tension on a roll of material as it decreases through the unwind process in label printing and similar applications.
  • Torque is proportional to the air pressure applied.

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More Brake Options
More Brake Options

View a Sampling of Our 2000+ Custom Models

  • Mach III specializes in the creation of cost-effective custom brake solutions, including specialized servo motor brakes.
  • No minimum order quantities, lead times average only one week longer than catalog models.

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Mach III Industrial Friction Brake Features
  • Multiple disc brake designs for high torque in a compact package.
  • Each friction brake is built to order with the precise Imperial or Metric bore and keyway requested.
  • Flange mounted models are both drilled and slotted to accommodate various installation arrangements.
  • Industrial friction brakes are easy and economical to use with long, low maintenance service life when properly applied and operated.

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