MAINFRAME CONSTRUCTION
"THE NEW" BI - FOLD DOORS FOR THE AVIATION INDUSTRY
A fast moving Schweiss Bifold or Hydraulic door works great on any aircraft building.
Don't accept losing valuable headroom because of your door. Schweiss doors are
incredibly durable, reliable, and easy to use. Our custom-built doors allow you to keep
your aircraft moving in and out of your building quickly and easily. For a door that gives
you full access to your building's available space and protects your aircraft from harsh
weather, go with the leader. Go with a Schweiss.
We will work with your architects - contractors and building suppliers to make sure the
hangar door you order will fit your clear opening and aircraft building to accommodate
your airplane. We will answer your questions and assist you with shop drawings to
make sure that your "Automatic Bi-fold" door will fit your new or old aviation building.
Available are the door weights - loadings - hinge locations - spec's and fine details.
Side View of Bi-Fold Door - Fully Closed
Heavy Duty Hinges
Building Side Column
Internal Truss
for Strength
Bottom Truss
Inside of Building
Outside of Building
Finished Floor
Side View of Bi-Fold Door - Fully Opened
Wedge
Clear Opening
Inside of Building
Outside of Building
Finished Floor
Bi-Fold Door Frame - Exploded for Detail
The Best And Most Dependable Door Available
--And Getting Even Better
Single Hinge
Bolt / weld to your building
Internal Truss
Extra Strength External
Center Truss
Extra Heavy
Duty Center Hinge & Pins
Internal Truss
Heavy Duty Bottom Roller
Extra Strength Heavy Duty
Bottom Internal Truss
STYLES TO CHOOSE
1st "S" Strap Doors - Bi-Fold Doors
Quality - Our Top of the Line Door - Best Door Money can Buy
New patented "Lift Strap" System features durable polyester material. The number
depends on the size of the door and adequately sized and lifting drums are in suff-
icient amount to give 5:1 safety factor.
How Do The Straps Work
The straps wrap around the lift drums as the door opens, as the drum's circumference
increases, the door opens faster. It's ideal: the door opens slowly, then picks up
speed.
Why Consider The "New Lift Straps"
Already 80% of our doors get ordered with "THE NEW LIFT STRAPS SYSTEM" so it is
obvious customers are catching on fast and for all the right reasons... It's a clean,
strong design which makes it Faster, Safer, Simpler, Easier, Quieter, Smoother and
most important it's been "Proven". Be sure to read our latest literature on the "New Lift
Straps"
Framework - 3" x 3" Square Tubing or 2" x 2" Square Tubing
Power Unit - Top or Bottom Drive Available - Electric Operated
The gear motor is equipped with an electric brake, to guarantee, to stop and hold
door in any position of door travel. Electric operator is pre-wired and fully
assembled. The motor and gear box and all necessary hardware are included.
All drive bearings come standard with grease fittings. Our heavy duty components
ensure you many years of use.
Lifting Method - The solid steel driveshaft has 3" lift drums mounted by each lift
point on the bottom cord of door and runs continuously along entire door width
providing an even lift at all times. Each lift point has greasable bearing
mounts. We use 2, 4, 6, etc... lift points on each door depending on the size of
your door. The 3" lift drums are shielded to avoid any potential hazards to people.
Bottom Rollers - Mask Bearings - Extra Heavy Duty Roller Bearings Wheels - 3"
2nd "S" Cable Doors - Bi-Fold Doors
Uses heavy 1/4" aircraft galvanized steel type lifting cables. The number of lift cables
depends on the size of door. All cables are sized & the lifting drums are in sufficient
amount to give 5:1 safety factor.
Framework - 3" x 3" Square Tubing or 2" x 2" Square Tubing
Power Unit - Bottom Drive - Electric Operated
The gear motor is equipped with an electric brake, to guarantee, to stop and hold
door in any position of door travel. Electric operator is pre-wired and fully
assembled. The motor and gear box and all necessary hardware are included.
All drive bearings come standard with grease fittings. Our heavy duty components
ensure you many years of use.
Lifting Method - The solid steel driveshaft has 3" lift drums mounted by each lift
point on the bottom cord of door and runs continuously along entire door width
providing an even lift at all times. Each lift point has greasable bearing mounts.
We use 2, 4, 6, etc... lift points on each door depending on the size of your door.
The 3" lift drums are shielded to avoid any potential hazards to people.
Bottom Rollers - The wheels at the bottom of the door jamb roll up each side
column. We use EXTRA heavy duty bearings that measure 3" that provide a
smooth operation.
3rd "HYD" "One Piece" Hydraulic Door
Framework-2" x 4" Square Tubing --2" cross tubes
Power Unit-Electric over Hydraulic Power Unit
• Self contained Electric / Hydraulic Power Unit comes from the factory fully
assembled and ready to operate your door trouble free for years to come. Each
power unit has a oil reservoir, a direct drive motor to the hydraulic pump protected
by an oil filter (Standard on all models) complete with gauges. Each power unit is
set up with universal wall or floor mount brackets, and are very easy to install.
What makes our power unit stand out from other models on the market - The
motor is sized to lift your door for many revolutions for years to come. ALL
SCHWEISS POWER UNITS ARE READY TO WORK. THEY EVEN HAVE THEIR
OWN TEST CORD FOR EASY INSTALLATION OF YOUR DOOR. CONVENIENCE
FOR THE CUSTOMER INSTTALLING HIS OWN DOOR.
Lifting Method - Hydraulic doors are opened with 2 Hydraulic cylinders with safety
built in. There is one cylinder located on each end of the door. Both hydraulic
cylinders are used to raise and lower the door. Schweiss provides extra heavy
duty cylinders that will give you many years of use on your door with trouble free
years of operation.
4th "D" Designer Doors (Hydraulic & Bi-Fold)
We have the reputation for creating distinctive, custom designer-style doors. With
your thoughts, and our door expertise, together we will design the ultimate door for
you to exactly match the designer door of your dreams. If you can think it, we can
make it. Let your imagination run wild, as we begin with the best, and move higher,
exceeding your every expectation. We don't just build our doors for anyone - we
build our doors for only one - you!
5th "H" Hand Operated - Bi-Fold Doors
Used when power is not available (Door must be of great quality)
Framework - 1.50" x 1.50" Square Tubing
Power Unit - Manually Operated with a Mechanical Hand Winch - Not Electric
Lifting Method - Cables or Straps operated with a Hand Operated Mechanism
6th "A" Aluminum Framed Doors
Schweiss offers a Aluminum framed doors. We manufacture our Aluminum frame
doors like no others - built with style and most important strength of the members.
We manufacture the door frames out of square and rectangular members to give the
nice clean appearance. You add the new lift straps to our Aluminum doors. Now you
have the best of both worlds, the popular lift straps and the cleanest lookin door in
the world.
