Mobile Protective Structures Mobile

Mobile Protective
Structures
Flexibility:
Our mobile protective structures are
available in many configurations to meet
your specific requirements. Our mobile
structures are unique in that they are self
propelled. No tug or other vehicle is
required to move them. Having built
mobile protective structures over 85' tall,
110 feet in width, 90 feet in length with
(closed and locked) wind speeds up to
100mph, we are confident that we can
build a system that will meet your
requirements or your imagination.

Design:
Structure is designed using CAD and
structural engineering sotware. Structure
and connection designs are certified by
an independant engineer. Structures are
engineered using structural steel and
cold formed memebrs per AISC and AISI
codes. Wind loads are calculated using
your location and building size for the
most accurate structural loading
possible. We don't make an assumption
on the wind load by using an arbitrary
standard, we check every time.

Construction:
Structure components are manufactured
to the highest standards and designed to
be completely bolt together, avoiding
costly delays due to welding inspections
and the availability of certified welders in
the field. Door components are also
designed to have as few connections as
possible, simplifying and increasing
assembly speed on the job. This lowers
the total installed cost for your door
system.

Support Wheels:
Our support guide wheels are machined
in house on CNC lathes and assembled
using taper roller bearings to transmit the
vertical forces imposed by the weight of
the structure and the lateral forces
imposed by wind and seismic loads.
Support wheels are supplied with grease
fittings installed on the support axles and
taper bearing adjusters. Support wheels
can be removed from the base unit
through the top of the wheel box, allowing
bearing/axle maintenance without having
to remove the door from the track.

Lock System:
Mobile structure locks are engineered to
take the full load of the wind plus the
seismic load in the direction of wheel
travel. Hydraulic cylinders or electric
screw jacks are used to extend the lock
pins and hold them in place.

Drive System:
Drive motors are installed onto a
mounting plate that is adjustable for chain
tension. Drive motor has a worm gear
drive gearbox and is equipped with a
motor brake that is directly mounted to
the drive motor for the Chain drive
features an overload clutch to prevent
damage in the case of overloading.
Overload clutch is easily released,
allowing manual operation in the event of
a power failure.

Weatherstrip:
Weatherstrip is 1/8" cloth inserted epdm.
Weatherstrip meets military
specifications for durometer, UV
resistance and incidental exposure to
paint thinners. Retainer bar is fastened
by zinc coated self drilling screws every
8" for a secure seal without oil canning of
retainer bar. Retainer bar is easily
removed for replacement of
weatherstripping if it becomes
necessary. Leading edge bubble seals
alow for 4" of compression.

Electrical Controls:
Door control panels are manufactured in
house using only the highest quality UL
listed components. Door control systems
utilize electromechanical relays that are
highly resistant to electrical interference
and have no programming that can
become corrupted requiring service.
Door control systems also utilize solid
state proximity sensors for limiting door
travel. These sensors are water proof
and have no moving parts to wear out.
Door control systems can be supplied
ranging from 220 to 600VAC. Variable
frequency drives are available for custom
tuning or varying of door drive speed.
Variable frequency drives come with
variable speed buttons with 3 adjustable
speed settings standard, 5 speeds as an
option.

Power Feed:
Standard power feed system supplied is
a cord design. The cord supplied is a
heavy duty SOOW type cord. The cord is
positioned on the ground along the
structure's movement path and then
plugged into the quick disconnect high
amperage plug. The cord has strain relief
fittings to protect the plug and hardware.

Standard options:
Timer delay with safety noisemaker
and/or strobe light, safety edge with delay
and/or auto reverse, personnel door
frames and safety interlock sensors,
explosion proof drive system, air drive
operating system, hydraulic drive
operating system. Mobile structure drive
motors and control panels are fully
assembled, wired and tested at our
facility prior to shipping.

Please call with your custom option
requirements, we are here to create the
system that meets your needs and your
imagination.