Hydraulic Pump
SCHWEISS HYDRAULIC POWER UNIT
- Operates two heavy-duty lift cylinders.
- Self-contained electric / hydraulic power unit comes
from the factory fully assembled and ready to operate. - Each unit comes pre-wired and factory tested, complete with a 24 V.A.C. control system.
- Each power unit has an oil reservoir (4 or 8 gal.), and a direct drive motor to the hydraulic pump protected
by an oil filter(standard on all models) complete with gauges.
PLACEMENT OF THE POWER UNIT
"A great feature on the Schweiss power units"
We furnish a universal bracket on all power units which allows you to position the hydraulic power unit anywhere within your building, keeping the inside appearance of your hangar, workshop, or warehouse clean and neat looking. It also keeps you from hearing the pump motor run. Placement is not restricted to just-by-the-door opening.
UNIVERSAL BRACKETS LISTED BELOW:
1. Wall mounting brackets - keeps the floor area free and clear.
2. Floor mount stand is self-contained and can be easily moved and placed.
WHAT MAKES OUR POWER UNIT STAND OUT FROM OTHER MODELS ON THE MARKET?
- The commercial grade electrical system... The electric control box!
- Not only pre-wired for easy installation, it also comes complete with reversing contactor and a terminal strip, providing a low voltage interface for easy, safe installation of electric add-ons such as remote controls, photo eyes, safety edges, warning lights and horn and entrance lights.
- The electrical add-ons can be included at the time of purchase, or installed at a later date, because Schweiss
has a COMPLETE electrical system setup to handle all the bells and whistles. - When doors are wired with a switch that turns the motor on first, you then have to activate the manual control valve to get the door to operate either direction. And lastly you MUST turn the motor switch OFF.
SCHWEISS DOES NOT USE A LOW END ELECTRICAL SYSTEM. ALL SCHWEISS POWER
UNITS ARE READY TO WORK. THEY EVEN HAVE THEIR OWN TEST CORD FOR EASY
INSTALLATION OF YOUR DOOR. CONVENIENT FOR THE CUSTOMER INSTALLING HIS OWN DOOR.
OIL FILTER... CLEAN OIL IS IMPORTANT - LONGER PUMP LIFE
- Each pump system has a protective screen filtering system standard.
- T-Series power units come with oil filters.
DEAD MAN CONTROL STATION ONE STEP OPERATION
A simple touch of the button lets you open/close/stop your door at any height. The motor automatically stops when you take your finger off the control station. Control station is pre-wired for low voltage.
ELECTRIC MOTOR 220 VOLT - 2 H.P. OR 5 H.P.
- We provide ample H.P. so you can stop your door at any position and change direction without lack of power.
- Motor sizes are 2 H.P. - 5 H.P. Each door has its own requirements.
- Motors are factory wired with high starting torque, reversible, continuous duty, Class A insulated, complying with NEMA MG 1. Sized to start, accelerate, and operate door in either direction, from any position and sized to lift your door for many revolutions for years to come.
- All electrical motors are fused and overload protected.
- Voltage requirements.
- We offer 220 volt single phase or 3 phase units.
ELECTRICAL HEAVY-DUTY SAFETY DISCONNECT - GREAT SAFETY FEATURE
Every door Schweiss manufactures is furnished with safety electrical disconnect. This completely disables the door for service, maintenance, and emergency backup operations. Mount the electrical disconnect so it is accessible from floor level.
Compact Hydraulic Power Unit
Clean Design
| ELECTRICAL COMPONENTS | GAUGES |
| BACKUP TRACTOR FITTINGS | OIL FILTER |
| REMOTES CONTROLS | SITE GLASS |
| BATTERY BACKUP ( OPTIONAL ) |
Understand the hydraulic doors and all the safety issues that are inherent with each door...
If a hydraulic
hose or line ever bursts, the hydraulic system must Lock Up and STOP the door from moving!
Learn More About Safety . . .
"Restrictors" When Used on Hydraulic Door Cylinders!
If the hydraulic system were to experience a sudden hydraulic line rupture, there's nothing to stop the door
from coming down when using only restrictors in the cylinders! Restrictors alone, when used on the hydraulic
cylinders, do not stop/lock the door in the event of a hydraulic line failure.
• Uncontrolled movement of any overhead door is never safe!
• Find Out . . .What safety feature will your hydraulic door have on it to keep the door from coming down in the event of a hydraulic line failure?
Hydraulic Cylinders
Cylinders must stay straight!
Unique Schweiss Design
DOORS ARE ALWAYS MOVING AND FLEXING
The Schweiss design uses Spherical Bearings on both ends of the cylinder allowing it to stay straight through its full range of motion.
Cylinder Stays Straight
Rod Stays Straight
Pins have even forces on them when the door is in any position
Lower teardrop plate is mounted to moving doorframe
Schweiss Uses Larger Cylinders
Even More Reasons to Buy Schweiss
Better, Stronger Cylinders
Other Brands
Smaller Cylinders. . .
Come with a price.
May not be as Strong
Not using Spherical Bearings puts uneven stress on the cylinder pins
*Due to the door movement & flexing
Smaller tubes bow easier
Rods that bow may cause seals to wear out causing oil leaks
Not using Spherical Bearings causes pins to wear out faster because of uneven forces on them
Unneccessary stress on cylinders & pin points
Cylinders are not designed to bow !
An Important Part Of The Door! We'll Tell You Why!
Larger Cylinders With Spherical Bearings
“No one else in the industry offers this unique feature”
Only available on Schweiss Doors...
Doors Are Always Moving and Flexing
Spherical bearings reduce stress and wear on the cylinders, cylinders pins and clevishes during operation.
Hydraulic doors are large in size and just like an airplane wing, the doorframe flexes during operation. The hydraulic cylinders on each side of the doorway are connected to the doorframe and the building using spherical bearings. The spherical bearings accommodate the flexibility of the doorframe while at the same time allowing the cylinders to raise and lower the door without binding on the hydraulic cylinder pins and brackets. Spherical Bearings on both ends of the cylinder allow the cylinders to stay straight through the full range of motion.
Strong Words From Our Customer
“Soon as I saw and understood the spherical bearings design, it was a no brainer. I was immediately SOLD on the Schweiss Hydraulic Door!”
If There Is A Failure Of A Hydraulic Component, The Door Needs To Stop Immediately!
Stopping the door completely in the event of a hydraulic component failure can be accomplished with a VELOCITY FUSE or a COUNTER BALANCE. The Schweiss Way
Restrictors or Orifices...
Have been used by some manufacturers as a safety feature.
WARNING
When others are using restrictors in the
dead end of the cylinder as a safety device...
- They may be setting you up for slow
motion disaster, Your worst nightmare!
Worst Case Scenario...
To have a door come down on a million dollar plane
or even worse than that, have the door come down
on people and put lives at risk!
Be careful... when phrases like these are being used to explain what happens in the event of a hydraulic hose/line failure using restrictors.
- “Gently coming all the way down...”
- “Controlled rate of descent...”
- “Coasting down...”
- “Preventing the door from slamming down...”
Some Have Said:
“In the event of a hose or line breaking, it will not stop the door from falling.
It takes 7 seconds for a door to come down when a hose / line breaks.”
Fact Is... That's Not A Lot of Time!
The door is coming down with no safety built-in to stop the door. Better clear the area!
When manufacturers use Restrictors on their cylinders...
- No safety built-in.
- Restrictors are not load holding.
- No way of stopping the door from coming down.
- Slow motion distaster... Your worst nightmare!
- The door won't stop if a hose/line fails (on the dead end).
- Door will come down if there's a failure, no matter what.
- The door is coming down on whatever is underneath it.
- Slowing the door as it comes down isn't good enough.
Did You Know?
If the manufacturer uses restrictors on the dead end of the cylinders, neither the restrictors nor the photo eyes will stop the door. You can't rely on the photo eyes to stop the door if a hose/line breaks on the dead end of the cylinder.
The Door Is Coming Down...
Restrictors Are Not A Safety Device!
Find out what safety devices you're getting on the hydraulic cylinders when you order your hydraulic door.
Call Schweiss
Ask yourself...“Do I know what I'm getting?”
“Is Safety Important To Me?”
Velocity Fuse and Counter Balances Are A Better Safety Feature
The Schweiss Way!
