Saferoller Smart-Belay3

MAG Brake Trolley: Self-braking Zipline trolley with integrated magnetic brake

The MAG Brake Trolley uses Eddy Current (Magnetic) technology to brake Zipline riders safe and consistently, based upon rider speed. 

The magnetic Zipline Pulley is equipped with a powerful and incrementally adjustable and Integrated Magnetic Brake. The integrated Eddy Current Brake means that we are able to slow down the rider to a manageable speed without friction, heat or wear on the cable. Therefore greatly reducing the maintenance needed to the zipline cables and the trolley as well.

Speed regulation and Safe Zip Wire Braking

Our self braking zip wire pulley solves the major safety issues around the controlled and safe braking situation at the end of high speed zip wire courses.  

Designed especially for steep, long and fast zipline courses, the MAG Brake Trolley allows for the development of long-distance zip-lines without a complex braking area. With that, we leave the smallest possible environmental footprint, by eliminating expensive and high maintenance constructions. With its internal braking system the MAG Brake zipline Pulley is able to handle a reduction of speed of up to 35%. 

All riders, independent of their weight and/or weather conditions (wind), will arrive at the same speed, allowing a safe and controlled braking situation.  

Proven Technology

We use proven Eddy Current brake technology, that is extremely reliable, smooth, and low maintenance. The magnetic braking is friction-free with no contacting parts. Eddy Current technology is fully proven and used in many critical applications. Our automatic-braking Zip wire Pulley is therefore one of the safest brake pulley available on the market for high end commercial zipline with slopes up to 25% and speeds up to 140 km/h. 

MAG Brake Pulley Configurations

Speed reduction: 

  • Trolley with copper wheels, up to 35% speed reduction
  • Trolley aluminum wheels, up to 25% speed reduction
  • No speed reduction 

Trolley configurations: 

  • Trolley with integrated handle and safety slots for a sit-harness 
  • Tandem trolley with two integrated handles and safety slots for sit-harnesses
  • Trolley with 3 integrated safety slots for usage with a Superman (head-first) harness 

Trolley Options: 

  • Catch mechanism for zipline braking systems
  • Different setups for specific harnesses 
  • Action Video camera setups
  • Company personal branding 


 Body:  Aluminum Body
 Braking Type:  Patented Eddy Current - Magnetic Brake
 Max Speed Rating:  140km/h
 Cable size options:  From 12mm to 22mm rope diameter
 Cable grade range:  4% – 25%
Rider Weight Range: 25 – 125 kg (275 lbs)
Trolley Weight: 6-7 kg (depending on configuration)
Harness Compatibility: Seat or Superman Harness
Compliance / Norms: WorkSafeBC part 11 and CSA Z259.16-15 design of fall protection and ASTM F2783 design of amusement rides


Check out our shop for pricing and options. 

magnetic zipline trolley, eddy current zipline trolley, magnetic zipline pulley, eddy current zipline pulley

About Magnetic Braking Technology

The Eddy Current (Magnetic) brake technology is extremely reliable, smooth, and low maintenance. The braking is friction-free with no contacting parts.

Low Maintenance

Because the braking is magnetic there are no contacting parts in the braking system to wear out or fail. The Magnetic Zipline Trolley is low maintenance and extremely reliable. Wheel changes are easy and are integrated in the normal inspection cycle.   


The self-braking Zipline pulley is self-regulating, meaning it adjusts automatically based on the characteristics of the zipline and rider. Since the braking resistance adjusts automatically to zip wire configuration, the MAG Trolley can accommodate a wide range of ziplines, and thus providing riders a similar and consistent experience.

Best User Experience

The automatic-braking Zipline trolley with Magnetic braking system is self-regulating, braking will be gradual and the speed will progressively decrease. A heavier participant will generally generate a faster speed, causing the magnetic field to create increased braking force. This allows a wide range of weights to enjoy a similar and consistent experience.

Photo: MAG Brake Trolley trolley

magnetic zipline trolley, eddy current zipline trolley, magnetic zipline pulley, eddy current zipline pulley


Related Articles