Home/ Products/ Anti-roll Back Magnet

Anti-roll Back Magnet

Anti-roll Back Magnet

Anti-roll Back Magnet is a replacement part for an anti-roll back (ARB) assembly on a rollercoaster. ARB systems are used on roller coasters to engage a mechanical catch dog in the unlikely event of a lift chain break and act as a secondary safety device stopping backwards movement of the ride vehicle.
The Anti-roll Back Magnet is automatically tested each time the ride vehicle goes through the station and gets a Go or No go from the system.

Talk to an Expert

Key Features and Benefits

1. Extremely powerful magnetic design: Well-designed neodymium Halbach array.

2. A reasonable thick plate stick together with magnets, which gives a reversed magnetic field conduction.

3. SUS316 stainless steel casing protecting magnets from bumping and corrosion to provide long service life. 

4. High-intensity magnets up to +8,000 gauss. 

5. Withstands working temperatures of up to 150°C (302°F).

ITEM NO.

Height

Width

Length

Weight

N28L20

1.12"

1.8"

5.5"

1.2 KG

N38L20

1.12"

1.8"

6.0"

1.4 KG

N42L30

1.3"

1.8"

6.8"

1.7 KG

N45L30

1.4"

1.8"

7.2"

2.1 KG

Construction

It is a planar Halbach Array, configuration appears a rectangular arrangement where neodymium magnets are laid out in rows with  alternating orientations to manipulate magnetic flux for maximum efficiency. As a result, one face of the assembly presents a very strong magnetic field and the opposite face presents a very weak magnetic field. Through the production, it can creat an additional field 30% - 80% without increasing the magnet weight. 

Applications

It plays a crucial role as a replacement part for an anti-roll back (ARB) assembly on a rollercoaster as a secondary safety device stopping backwards movement of the ride vehicle.

Statement of Requirements

Specifications for product, priority is set as according to list:

A - Absolute requirement, 1 - High priority

 

NO.

Priority

Requirement

Value

Unit

Comment

Attachment

Confirmation

1

A

Test position in three lines

NA

NA

 

Surface field testing in 3 lines as attached picture.

2

1

Proble Distance to Surface

Zero 0

G

Choose the middle position in line and 0 distance to surface.

3

1

Proble Distance to Surface

0.5"

G

Choonse one position in middle line and 0.5" distance to surface.

4

1

Proble Distance to Surface

1"

G

Choose one position in the middle line, and 1" distance from the surface.

NO.

Priority

FEA (Prototype)

FEA (Prototype)

1

A

2

A

NO.

Priority

Magnetic Flux Density(X)                                                   (Original Sample)

Magnetic Flux Density(Z)                                                                             (New Sample)

1

1

2

A

Outer geometry

NA

NA

According to Drawing

 

According to RT3017-A01

3

1

Similar geometry for magnet cover/ magnet rod as existing design.

NA

NA

According to Drawing

 

According to RT3017-A01

4

A

Tolerances for dimensions on final product if not other specified.

NA

NA

According to Drawing

 

According to RT3017-A01

Remark:

Magnetic Flux Density are the same for both samples.

 

Assembly Surface Gauss is 10%-30% higher than original sample.

Appearance Treatment could be proceeded in polishing, it is available when special requirement from clients.

Related Products

Anti-roll Back Magnet

Anti-roll Back Magnet is a replacement part for an anti-roll back (ARB) assembly on a rollercoaster. ARB systems are used on roller coasters to engage a mechanical catch dog in the unlikely event of a lift chain break and act as a secondary safety device stopping backwards movement of the ride vehicle.
The Anti-roll Back Magnet is automatically tested each time the ride vehicle goes through the station and gets a Go or No go from the system.

Send Us a Message

CONTACT

Start a Collaboration, Explore New Possibilities in Magnetic Technology

Talk to an Expert

+86 18815298795