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Model 501 Roll-Up Door Features
501 - A. Counterbalance
Helical torsion spring (3.375
ID) is factory calibrated and
lubricated to ensure trouble-free performance and
unparalleled cycle life.
Superior engineering means
greatly reducing
spring maintenance along with
faster and easier
installation.
501 - B. Drum/Locating Collars
In order to meet the tough
demands of self
storage, the 9.5 diameter
18-gauge drums
are furnished with locating
collars and are
permanently welded to the drive
axle. This also
makes installation faster while
providing a positive
location for the mounting
brackets and guides.
501 - C. Shaft
The heavy duty 1-5/16 (1.3125)
OD 12-gauge axle
pipe provides maximum strength
and durability. |
Model 502
Roll-Up Door
Features
Barrel Assembly
502 - A. Counterbalance:
Helical torsion spring (3.375
ID) is factory
calibrated and lubricated to
ensure trouble-free
performance and unparalleled
cycle life. Springs
are pre-stretched and
permanently attached in
the factory, minimizing field
installation labor
while guaranteeing proper
operational tolerances.
Ratcheting tension adjuster is
standard on the
Model 502.
502 - B. Drums:
Utilizing US Doors Commercial
door designs, the
Model 502 has galvanized
18-gauge drums with
roller bearings permanently
installed as standard.
These drums rotate around the
shaft, effortlessly
opening and closing the door the
same every time.
These doors pass our standard
60,000 cycle test,
and keep on working.
502 - C. Shaft:
A helically wound galvanized
barrel surrounds the
shaft and drum assembly for the
full width of the
door, providing maximum strength
against deflection
while fully enclosing the spring
assembly of the
door. Designed for light
commercial applications and
residential workshops the Model
502 is aesthetically
pleasing both inside and out. |
Roll Up Door Curtain Assembly
D. Finish Coat
These door curtains are
pre-finished with a base coat
primer to ensure long term
adhesion and durability. This
ensures the medium gloss
silicone polyester premium top
coat keeps your facility looking
better with minimal maintenance.
The finish is guaranteed against
chalking and fading for 20 years
with 22 standard colors
available.
E. Operation
Standard operation of doors by
means of push-up operation,
meets the American Disability
Association standards for
Accessible Design for Opening
Force requirement.
F. Curtain
Our self-storage doors are
manufactured from precision
roll-formed 26 gauge pretreated,
galvanized and pre-painted
commercial quality 80 ksi steel
panels that are mechanically
seamed together for a tough and
durable curtain. A standard
1-inch self-lubricating
polypropylene wear strip is
stapled uniformly to the
exteriors of the door to protect
against nesting and
metal-to-metal contact and
resulting in ultra-smooth and
quiet operation.
G. Curtain Stop
Wrap around stop mounted on
guide positively stops the door
in the open position every time.
Adjustable to allow vertically
positive stopping at your
desired height.
Brackets & Guides
501 - H. Brackets
In order to meet the tough
demands of self storage, our
brackets are made of 14-gauge
hot-dipped galvanized steel; and
are furnished with standard low
friction nylon bushings to
provide smooth, trouble-free
operation for years to come.
Optional steel bearings and
ratcheting tension device are
also available.
502 H: Brackets
The Model 502 mounting brackets,
made of the same 14 gauge
hot-dipped galvanized steel,
securely lock the shaft assembly
in place. The standard ratchet
tension adjuster is safely
located between the bracket and
the drum assembly, providing
maximum protection for the
installer and end-user alike.
I. Guides
Our guides are made from
galvanized steel with a
polypropylene strip attached to
the inside edge allowing for
many years of quiet operation.
Guides are precision punched and
roll formed to the highest
standards of quality and
consistency. Designed with the
customer in mind, one guide type
is suitable for all jamb types.
Steel, wood, or masonry, every
door is the same. Fasteners are
securely hidden inside the
track, yet carefully positioned
away from the travel of the
curtain No rubbing, no pinching,
no metal-to-metal contact, this
guide design is ideal for all
applications.
J. Polypropylene Wear Strip
One-inch wide strips are stapled
along both edges of the curtain
to prevent steel-to-steel
contact between the curtain and
guide for smoother and quieter
door operation. The same wear
strip as used on our commercial
roll-ups up to 20' x 16', this
edge provides a quieter
operation while ensuring the
door rolls the same time after
time.
K. Bottom Bar / Bottom Astragal
A precision extruded aluminum
bottom bar reinforced with a
heavy duty galvanized structural
angle, providing maximum door
strength and more aesthetic
appeal. A flexible full-bulb
type PVC astragal provides for
long-term weather resistance and
consistent closure to the
finished door.
L. Lift Handle
Our heavy duty lift handles
provide both a handle for easier
opening and a step plate for
closing. A heavy duty
polypropylene pull rope is also
attached to the inside
reinforcing steel angle for
maximum safety and convenience.
M. Latch
Factory installed zinc-plated
slide lock with standard
provisions for two padlocks.
Optional cylinder locks and
stainless steel are available. |