Main Causes of Permanent Lifting Magnets Damage
Posted on June 10, 2016
An Armstrong NL-B permanent lifting magnet could be used for many years when you
strictly follow the Instruction Manual shipped along with the
magnetic lifting device.
You may want to know which factors could cause permanent lifting magnets to be out of order.
The biggest cause of lifting magnet damage is collision against other heavy objects.
- Collisions could damage safety latch eventhough NL-B lifting
magnet has the level part of its L shaped safety latch lowered
into a slot in order to protect it against collisions. However,
the safety latch could survive in light collisions after we
changed our design and started to mill the protection slot at
the top of NL-B lifting magnets started a few yeas ago. If there
is no the slot to protect the safety latch, such as competiting
manufacturers’ permanent lifting magnets, it could be more
easily damaged from
- Besides the safety latch, handle could also be damaged from a collision.
Armstrong NL-B permanent lifting magnets are installed with
solid handles which are
very sturdy and would not deformed in moderate intensity impact. In the market of
permanent lifting magnets, some handles are composed of a tube and a sliding bar
inside. This kind of the handle could be more easily deformed and out of order in
collisions due to the tube construction.
- If collisions or scratches occur at the bottom of the permanent lifting magnets,
there would be dents or burrs at this area. These dents or burrs could
lead to air gaps
and reduce their rated lifting capacity. You must inspect the bottom surface
conditions after they are hit by any heavy or sharp objects.
In addition to collisions, moisture and high temperature over 148°F
critical causes of permanent lifting magnet damages which may be permanent.